/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.14.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 03:01:00,402 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 03:01:00,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 03:01:00,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 03:01:00,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 03:01:00,455 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 03:01:00,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 03:01:00,457 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 03:01:00,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 03:01:00,458 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 03:01:00,459 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 03:01:00,460 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 03:01:00,460 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 03:01:00,461 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 03:01:00,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 03:01:00,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 03:01:00,463 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 03:01:00,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 03:01:00,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 03:01:00,465 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 03:01:00,466 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 03:01:00,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 03:01:00,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 03:01:00,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 03:01:00,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 03:01:00,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 03:01:00,481 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 03:01:00,481 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 03:01:00,482 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 03:01:00,482 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 03:01:00,483 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-20 03:01:00,483 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-20 03:01:00,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-20 03:01:00,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-20 03:01:00,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-20 03:01:00,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-20 03:01:00,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-20 03:01:00,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-20 03:01:00,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-20 03:01:00,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 03:01:00,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 03:01:00,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 03:01:00,492 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2022-03-20 03:01:00,515 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 03:01:00,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 03:01:00,515 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-20 03:01:00,515 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-20 03:01:00,517 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-20 03:01:00,517 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-20 03:01:00,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-20 03:01:00,518 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-20 03:01:00,518 INFO L138 SettingsManager]: * Use SBE=true [2022-03-20 03:01:00,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 03:01:00,518 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 03:01:00,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 03:01:00,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 03:01:00,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 03:01:00,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 03:01:00,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 03:01:00,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 03:01:00,519 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 03:01:00,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 03:01:00,519 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 03:01:00,519 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 03:01:00,519 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 03:01:00,519 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 03:01:00,519 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 03:01:00,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 03:01:00,520 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 03:01:00,520 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-20 03:01:00,520 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-20 03:01:00,520 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 03:01:00,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-20 03:01:00,520 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-20 03:01:00,520 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-03-20 03:01:00,520 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 03:01:00,520 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 03:01:00,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 03:01:00,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 03:01:00,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 03:01:00,770 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 03:01:00,771 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 03:01:00,772 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-1.c [2022-03-20 03:01:00,865 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60ce2e071/86ae2c2829884f478340a5ea87a3fc47/FLAGcdeddb0bc [2022-03-20 03:01:01,255 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 03:01:01,255 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-1.c [2022-03-20 03:01:01,291 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60ce2e071/86ae2c2829884f478340a5ea87a3fc47/FLAGcdeddb0bc [2022-03-20 03:01:01,589 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60ce2e071/86ae2c2829884f478340a5ea87a3fc47 [2022-03-20 03:01:01,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 03:01:01,592 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 03:01:01,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 03:01:01,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 03:01:01,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 03:01:01,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 03:01:01" (1/1) ... [2022-03-20 03:01:01,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d14f5ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:01:01, skipping insertion in model container [2022-03-20 03:01:01,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 03:01:01" (1/1) ... [2022-03-20 03:01:01,620 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 03:01:01,672 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 03:01:01,969 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.14.i.cil-1.c[76536,76549] [2022-03-20 03:01:01,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 03:01:01,983 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 03:01:02,069 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.14.i.cil-1.c[76536,76549] [2022-03-20 03:01:02,072 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 03:01:02,086 INFO L208 MainTranslator]: Completed translation [2022-03-20 03:01:02,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:01:02 WrapperNode [2022-03-20 03:01:02,086 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 03:01:02,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 03:01:02,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 03:01:02,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 03:01:02,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:01:02" (1/1) ... [2022-03-20 03:01:02,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:01:02" (1/1) ... [2022-03-20 03:01:02,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:01:02" (1/1) ... [2022-03-20 03:01:02,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:01:02" (1/1) ... [2022-03-20 03:01:02,181 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:01:02" (1/1) ... [2022-03-20 03:01:02,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:01:02" (1/1) ... [2022-03-20 03:01:02,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:01:02" (1/1) ... [2022-03-20 03:01:02,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 03:01:02,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 03:01:02,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 03:01:02,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 03:01:02,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:01:02" (1/1) ... [2022-03-20 03:01:02,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 03:01:02,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:01:02,244 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-20 03:01:02,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-20 03:01:02,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 03:01:02,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 03:01:02,288 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 03:01:02,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-20 03:01:02,290 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-20 03:01:02,290 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 03:01:02,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-20 03:01:02,290 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 03:01:02,290 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 03:01:02,290 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 03:01:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 03:01:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 03:01:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 03:01:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 03:01:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 03:01:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 03:01:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 03:01:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 03:01:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 03:01:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 03:01:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-20 03:01:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 03:01:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-20 03:01:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-20 03:01:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 03:01:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 03:01:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 03:01:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 03:01:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 03:01:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 03:01:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 03:01:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 03:01:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 03:01:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 03:01:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 03:01:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 03:01:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 03:01:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 03:01:02,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 03:01:02,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 03:01:02,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 03:01:02,448 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 03:01:02,449 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 03:01:03,242 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 03:01:03,559 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-20 03:01:03,559 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-20 03:01:03,568 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 03:01:03,576 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 03:01:03,576 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 03:01:03,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 03:01:03 BoogieIcfgContainer [2022-03-20 03:01:03,578 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 03:01:03,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 03:01:03,579 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 03:01:03,581 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 03:01:03,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 03:01:01" (1/3) ... [2022-03-20 03:01:03,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b91e71e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 03:01:03, skipping insertion in model container [2022-03-20 03:01:03,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 03:01:02" (2/3) ... [2022-03-20 03:01:03,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b91e71e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 03:01:03, skipping insertion in model container [2022-03-20 03:01:03,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 03:01:03" (3/3) ... [2022-03-20 03:01:03,583 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.14.i.cil-1.c [2022-03-20 03:01:03,588 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-20 03:01:03,588 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 03:01:03,648 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 03:01:03,652 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-20 03:01:03,652 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 03:01:03,671 INFO L276 IsEmpty]: Start isEmpty. Operand has 164 states, 156 states have (on average 1.7179487179487178) internal successors, (268), 157 states have internal predecessors, (268), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 03:01:03,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-20 03:01:03,679 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:03,680 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:03,680 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:03,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:03,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1970039715, now seen corresponding path program 1 times [2022-03-20 03:01:03,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:03,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550514046] [2022-03-20 03:01:03,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:03,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:03,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:04,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:04,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:04,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:01:04,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:04,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550514046] [2022-03-20 03:01:04,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550514046] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:04,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:04,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:01:04,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471148971] [2022-03-20 03:01:04,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:04,193 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:01:04,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:04,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:01:04,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:01:04,232 INFO L87 Difference]: Start difference. First operand has 164 states, 156 states have (on average 1.7179487179487178) internal successors, (268), 157 states have internal predecessors, (268), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:06,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:06,670 INFO L93 Difference]: Finished difference Result 448 states and 762 transitions. [2022-03-20 03:01:06,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:01:06,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-03-20 03:01:06,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:06,685 INFO L225 Difference]: With dead ends: 448 [2022-03-20 03:01:06,685 INFO L226 Difference]: Without dead ends: 273 [2022-03-20 03:01:06,690 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:01:06,692 INFO L913 BasicCegarLoop]: 170 mSDtfsCounter, 166 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:06,693 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 499 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 03:01:06,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-03-20 03:01:06,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 188. [2022-03-20 03:01:06,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 183 states have (on average 1.6174863387978142) internal successors, (296), 183 states have internal predecessors, (296), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:06,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 300 transitions. [2022-03-20 03:01:06,746 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 300 transitions. Word has length 50 [2022-03-20 03:01:06,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:06,747 INFO L478 AbstractCegarLoop]: Abstraction has 188 states and 300 transitions. [2022-03-20 03:01:06,751 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:06,751 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 300 transitions. [2022-03-20 03:01:06,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-03-20 03:01:06,752 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:06,753 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:06,753 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 03:01:06,753 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:06,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:06,753 INFO L85 PathProgramCache]: Analyzing trace with hash 2083271363, now seen corresponding path program 1 times [2022-03-20 03:01:06,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:06,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560911701] [2022-03-20 03:01:06,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:06,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:06,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:06,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:07,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:07,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:01:07,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:07,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560911701] [2022-03-20 03:01:07,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560911701] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:07,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:07,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:01:07,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018113478] [2022-03-20 03:01:07,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:07,016 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:01:07,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:07,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:01:07,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:01:07,017 INFO L87 Difference]: Start difference. First operand 188 states and 300 transitions. 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) [2022-03-20 03:01:09,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:09,264 INFO L93 Difference]: Finished difference Result 389 states and 622 transitions. [2022-03-20 03:01:09,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:01:09,265 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 [2022-03-20 03:01:09,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:09,266 INFO L225 Difference]: With dead ends: 389 [2022-03-20 03:01:09,267 INFO L226 Difference]: Without dead ends: 216 [2022-03-20 03:01:09,267 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:01:09,268 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 22 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:09,269 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 517 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 03:01:09,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-03-20 03:01:09,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 199. [2022-03-20 03:01:09,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.6237113402061856) internal successors, (315), 194 states have internal predecessors, (315), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:09,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 319 transitions. [2022-03-20 03:01:09,321 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 319 transitions. Word has length 51 [2022-03-20 03:01:09,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:09,322 INFO L478 AbstractCegarLoop]: Abstraction has 199 states and 319 transitions. [2022-03-20 03:01:09,322 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) [2022-03-20 03:01:09,322 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 319 transitions. [2022-03-20 03:01:09,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-20 03:01:09,324 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:09,324 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:09,324 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 03:01:09,324 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:09,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:09,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1174616107, now seen corresponding path program 1 times [2022-03-20 03:01:09,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:09,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043636436] [2022-03-20 03:01:09,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:09,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:09,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:09,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:09,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:09,480 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:01:09,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:09,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043636436] [2022-03-20 03:01:09,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043636436] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:09,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:09,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:01:09,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54052976] [2022-03-20 03:01:09,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:09,482 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:01:09,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:09,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:01:09,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:01:09,483 INFO L87 Difference]: Start difference. First operand 199 states and 319 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:11,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:11,613 INFO L93 Difference]: Finished difference Result 389 states and 621 transitions. [2022-03-20 03:01:11,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:01:11,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-20 03:01:11,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:11,615 INFO L225 Difference]: With dead ends: 389 [2022-03-20 03:01:11,615 INFO L226 Difference]: Without dead ends: 216 [2022-03-20 03:01:11,616 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:01:11,617 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 24 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:11,618 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 519 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-20 03:01:11,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-03-20 03:01:11,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 199. [2022-03-20 03:01:11,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.6185567010309279) internal successors, (314), 194 states have internal predecessors, (314), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:11,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 318 transitions. [2022-03-20 03:01:11,628 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 318 transitions. Word has length 64 [2022-03-20 03:01:11,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:11,629 INFO L478 AbstractCegarLoop]: Abstraction has 199 states and 318 transitions. [2022-03-20 03:01:11,629 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:11,629 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 318 transitions. [2022-03-20 03:01:11,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 03:01:11,631 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:11,631 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:11,631 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 03:01:11,631 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:11,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:11,632 INFO L85 PathProgramCache]: Analyzing trace with hash -774984987, now seen corresponding path program 1 times [2022-03-20 03:01:11,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:11,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826938768] [2022-03-20 03:01:11,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:11,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:11,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:11,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:11,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:11,786 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:01:11,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:11,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826938768] [2022-03-20 03:01:11,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826938768] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:11,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:11,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:01:11,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921545897] [2022-03-20 03:01:11,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:11,789 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:01:11,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:11,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:01:11,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:01:11,792 INFO L87 Difference]: Start difference. First operand 199 states and 318 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:13,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:01:14,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:14,853 INFO L93 Difference]: Finished difference Result 388 states and 619 transitions. [2022-03-20 03:01:14,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:01:14,854 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-20 03:01:14,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:14,855 INFO L225 Difference]: With dead ends: 388 [2022-03-20 03:01:14,855 INFO L226 Difference]: Without dead ends: 215 [2022-03-20 03:01:14,856 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:01:14,857 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 28 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:14,858 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 521 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-20 03:01:14,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-03-20 03:01:14,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 199. [2022-03-20 03:01:14,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.6134020618556701) internal successors, (313), 194 states have internal predecessors, (313), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:14,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 317 transitions. [2022-03-20 03:01:14,874 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 317 transitions. Word has length 65 [2022-03-20 03:01:14,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:14,875 INFO L478 AbstractCegarLoop]: Abstraction has 199 states and 317 transitions. [2022-03-20 03:01:14,875 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:14,875 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 317 transitions. [2022-03-20 03:01:14,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 03:01:14,882 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:14,883 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:14,883 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 03:01:14,883 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:14,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:14,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1884446929, now seen corresponding path program 1 times [2022-03-20 03:01:14,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:14,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703704394] [2022-03-20 03:01:14,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:14,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:15,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:15,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:15,063 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:01:15,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:15,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703704394] [2022-03-20 03:01:15,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703704394] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:15,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:15,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:01:15,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19063881] [2022-03-20 03:01:15,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:15,066 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:01:15,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:15,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:01:15,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:01:15,067 INFO L87 Difference]: Start difference. First operand 199 states and 317 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:17,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:17,604 INFO L93 Difference]: Finished difference Result 496 states and 794 transitions. [2022-03-20 03:01:17,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:01:17,605 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-20 03:01:17,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:17,606 INFO L225 Difference]: With dead ends: 496 [2022-03-20 03:01:17,606 INFO L226 Difference]: Without dead ends: 323 [2022-03-20 03:01:17,607 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:01:17,607 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 161 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:17,607 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 380 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 03:01:17,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2022-03-20 03:01:17,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 211. [2022-03-20 03:01:17,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 206 states have (on average 1.5970873786407767) internal successors, (329), 206 states have internal predecessors, (329), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:17,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 333 transitions. [2022-03-20 03:01:17,615 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 333 transitions. Word has length 65 [2022-03-20 03:01:17,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:17,619 INFO L478 AbstractCegarLoop]: Abstraction has 211 states and 333 transitions. [2022-03-20 03:01:17,621 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:17,621 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 333 transitions. [2022-03-20 03:01:17,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 03:01:17,622 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:17,622 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:17,623 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 03:01:17,623 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:17,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:17,623 INFO L85 PathProgramCache]: Analyzing trace with hash 2089920570, now seen corresponding path program 1 times [2022-03-20 03:01:17,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:17,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844166685] [2022-03-20 03:01:17,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:17,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:17,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:17,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:17,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:17,747 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:01:17,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:17,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844166685] [2022-03-20 03:01:17,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844166685] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:17,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:17,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:01:17,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235042733] [2022-03-20 03:01:17,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:17,748 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:01:17,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:17,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:01:17,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:01:17,749 INFO L87 Difference]: Start difference. First operand 211 states and 333 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:20,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:20,199 INFO L93 Difference]: Finished difference Result 508 states and 808 transitions. [2022-03-20 03:01:20,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:01:20,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-20 03:01:20,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:20,202 INFO L225 Difference]: With dead ends: 508 [2022-03-20 03:01:20,202 INFO L226 Difference]: Without dead ends: 323 [2022-03-20 03:01:20,203 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:01:20,204 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 155 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:20,204 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 380 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 03:01:20,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2022-03-20 03:01:20,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 216. [2022-03-20 03:01:20,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.5924170616113744) internal successors, (336), 211 states have internal predecessors, (336), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:20,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 340 transitions. [2022-03-20 03:01:20,231 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 340 transitions. Word has length 65 [2022-03-20 03:01:20,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:20,232 INFO L478 AbstractCegarLoop]: Abstraction has 216 states and 340 transitions. [2022-03-20 03:01:20,232 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:20,232 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 340 transitions. [2022-03-20 03:01:20,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 03:01:20,233 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:20,233 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:20,233 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 03:01:20,233 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:20,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:20,234 INFO L85 PathProgramCache]: Analyzing trace with hash -110686695, now seen corresponding path program 1 times [2022-03-20 03:01:20,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:20,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337432447] [2022-03-20 03:01:20,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:20,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:20,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:20,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:20,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:20,346 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:01:20,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:20,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337432447] [2022-03-20 03:01:20,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337432447] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:20,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:20,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:01:20,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216990174] [2022-03-20 03:01:20,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:20,347 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:01:20,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:20,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:01:20,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:01:20,348 INFO L87 Difference]: Start difference. First operand 216 states and 340 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:23,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:23,086 INFO L93 Difference]: Finished difference Result 512 states and 812 transitions. [2022-03-20 03:01:23,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:01:23,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-20 03:01:23,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:23,088 INFO L225 Difference]: With dead ends: 512 [2022-03-20 03:01:23,088 INFO L226 Difference]: Without dead ends: 322 [2022-03-20 03:01:23,089 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:01:23,089 INFO L913 BasicCegarLoop]: 131 mSDtfsCounter, 153 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:23,090 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 382 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-20 03:01:23,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-03-20 03:01:23,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 217. [2022-03-20 03:01:23,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 212 states have (on average 1.580188679245283) internal successors, (335), 212 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) [2022-03-20 03:01:23,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 339 transitions. [2022-03-20 03:01:23,099 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 339 transitions. Word has length 65 [2022-03-20 03:01:23,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:23,101 INFO L478 AbstractCegarLoop]: Abstraction has 217 states and 339 transitions. [2022-03-20 03:01:23,101 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:23,102 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 339 transitions. [2022-03-20 03:01:23,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 03:01:23,103 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:23,103 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:23,103 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 03:01:23,103 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:23,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:23,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1105145420, now seen corresponding path program 1 times [2022-03-20 03:01:23,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:23,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849973435] [2022-03-20 03:01:23,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:23,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:23,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:23,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:23,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:23,209 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:01:23,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:23,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849973435] [2022-03-20 03:01:23,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849973435] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:23,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:23,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:01:23,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860911265] [2022-03-20 03:01:23,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:23,211 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:01:23,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:23,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:01:23,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:01:23,211 INFO L87 Difference]: Start difference. First operand 217 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) [2022-03-20 03:01:25,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:25,884 INFO L93 Difference]: Finished difference Result 513 states and 809 transitions. [2022-03-20 03:01:25,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:01:25,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-20 03:01:25,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:25,886 INFO L225 Difference]: With dead ends: 513 [2022-03-20 03:01:25,886 INFO L226 Difference]: Without dead ends: 322 [2022-03-20 03:01:25,887 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:01:25,888 INFO L913 BasicCegarLoop]: 131 mSDtfsCounter, 157 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:25,888 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 382 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 03:01:25,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-03-20 03:01:25,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 217. [2022-03-20 03:01:25,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 212 states have (on average 1.5660377358490567) internal successors, (332), 212 states have internal predecessors, (332), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:25,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 336 transitions. [2022-03-20 03:01:25,895 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 336 transitions. Word has length 66 [2022-03-20 03:01:25,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:25,895 INFO L478 AbstractCegarLoop]: Abstraction has 217 states and 336 transitions. [2022-03-20 03:01:25,895 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:25,895 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 336 transitions. [2022-03-20 03:01:25,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-20 03:01:25,896 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:25,896 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:25,897 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 03:01:25,897 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:25,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:25,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1025427060, now seen corresponding path program 1 times [2022-03-20 03:01:25,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:25,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187214151] [2022-03-20 03:01:25,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:25,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:25,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:25,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:26,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:26,003 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:01:26,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:26,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187214151] [2022-03-20 03:01:26,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187214151] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:26,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:26,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:01:26,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860047215] [2022-03-20 03:01:26,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:26,004 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:01:26,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:26,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:01:26,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:01:26,006 INFO L87 Difference]: Start difference. First operand 217 states and 336 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:27,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:27,611 INFO L93 Difference]: Finished difference Result 421 states and 657 transitions. [2022-03-20 03:01:27,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:01:27,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-03-20 03:01:27,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:27,613 INFO L225 Difference]: With dead ends: 421 [2022-03-20 03:01:27,613 INFO L226 Difference]: Without dead ends: 230 [2022-03-20 03:01:27,614 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:01:27,614 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 20 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:27,614 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 527 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-20 03:01:27,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-03-20 03:01:27,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 217. [2022-03-20 03:01:27,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 212 states have (on average 1.5613207547169812) internal successors, (331), 212 states have internal predecessors, (331), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:27,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 335 transitions. [2022-03-20 03:01:27,622 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 335 transitions. Word has length 67 [2022-03-20 03:01:27,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:27,622 INFO L478 AbstractCegarLoop]: Abstraction has 217 states and 335 transitions. [2022-03-20 03:01:27,622 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:27,623 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 335 transitions. [2022-03-20 03:01:27,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-20 03:01:27,623 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:27,623 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:27,623 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 03:01:27,624 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:27,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:27,624 INFO L85 PathProgramCache]: Analyzing trace with hash -2095726681, now seen corresponding path program 1 times [2022-03-20 03:01:27,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:27,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511733052] [2022-03-20 03:01:27,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:27,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:27,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:27,729 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:01:27,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:27,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511733052] [2022-03-20 03:01:27,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511733052] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:27,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:27,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:01:27,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113625373] [2022-03-20 03:01:27,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:27,730 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:01:27,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:27,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:01:27,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:01:27,730 INFO L87 Difference]: Start difference. First operand 217 states and 335 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) [2022-03-20 03:01:29,881 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:01:30,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:30,851 INFO L93 Difference]: Finished difference Result 513 states and 803 transitions. [2022-03-20 03:01:30,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:01:30,852 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 [2022-03-20 03:01:30,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:30,853 INFO L225 Difference]: With dead ends: 513 [2022-03-20 03:01:30,853 INFO L226 Difference]: Without dead ends: 322 [2022-03-20 03:01:30,854 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:01:30,854 INFO L913 BasicCegarLoop]: 131 mSDtfsCounter, 154 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:30,855 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 382 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-20 03:01:30,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-03-20 03:01:30,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 217. [2022-03-20 03:01:30,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 212 states have (on average 1.5471698113207548) internal successors, (328), 212 states have internal predecessors, (328), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:30,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 332 transitions. [2022-03-20 03:01:30,860 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 332 transitions. Word has length 68 [2022-03-20 03:01:30,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:30,860 INFO L478 AbstractCegarLoop]: Abstraction has 217 states and 332 transitions. [2022-03-20 03:01:30,860 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) [2022-03-20 03:01:30,860 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 332 transitions. [2022-03-20 03:01:30,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-20 03:01:30,861 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:30,861 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:30,861 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 03:01:30,861 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:30,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:30,861 INFO L85 PathProgramCache]: Analyzing trace with hash -613660514, now seen corresponding path program 1 times [2022-03-20 03:01:30,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:30,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617655814] [2022-03-20 03:01:30,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:30,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:30,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:30,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:30,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:30,953 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:01:30,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:30,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617655814] [2022-03-20 03:01:30,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617655814] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:30,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:30,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:01:30,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786186140] [2022-03-20 03:01:30,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:30,954 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:01:30,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:30,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:01:30,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:01:30,955 INFO L87 Difference]: Start difference. First operand 217 states and 332 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) [2022-03-20 03:01:33,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:33,879 INFO L93 Difference]: Finished difference Result 450 states and 694 transitions. [2022-03-20 03:01:33,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:01:33,879 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 [2022-03-20 03:01:33,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:33,880 INFO L225 Difference]: With dead ends: 450 [2022-03-20 03:01:33,880 INFO L226 Difference]: Without dead ends: 259 [2022-03-20 03:01:33,881 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:01:33,881 INFO L913 BasicCegarLoop]: 207 mSDtfsCounter, 29 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:33,881 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 541 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-20 03:01:33,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-03-20 03:01:33,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 239. [2022-03-20 03:01:33,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.5427350427350428) internal successors, (361), 234 states have internal predecessors, (361), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:33,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 365 transitions. [2022-03-20 03:01:33,886 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 365 transitions. Word has length 68 [2022-03-20 03:01:33,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:33,886 INFO L478 AbstractCegarLoop]: Abstraction has 239 states and 365 transitions. [2022-03-20 03:01:33,886 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) [2022-03-20 03:01:33,886 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 365 transitions. [2022-03-20 03:01:33,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-03-20 03:01:33,887 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:33,887 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:33,887 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 03:01:33,887 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:33,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:33,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1929228838, now seen corresponding path program 1 times [2022-03-20 03:01:33,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:33,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838552075] [2022-03-20 03:01:33,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:33,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:33,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:34,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:34,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:34,041 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:01:34,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:34,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838552075] [2022-03-20 03:01:34,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838552075] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:34,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:34,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:01:34,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079408862] [2022-03-20 03:01:34,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:34,042 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:01:34,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:34,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:01:34,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:01:34,043 INFO L87 Difference]: Start difference. First operand 239 states and 365 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) [2022-03-20 03:01:35,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:35,763 INFO L93 Difference]: Finished difference Result 470 states and 724 transitions. [2022-03-20 03:01:35,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:01:35,764 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 81 [2022-03-20 03:01:35,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:35,765 INFO L225 Difference]: With dead ends: 470 [2022-03-20 03:01:35,765 INFO L226 Difference]: Without dead ends: 257 [2022-03-20 03:01:35,765 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:01:35,766 INFO L913 BasicCegarLoop]: 210 mSDtfsCounter, 34 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:35,766 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 545 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-20 03:01:35,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-03-20 03:01:35,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 239. [2022-03-20 03:01:35,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.5384615384615385) internal successors, (360), 234 states have internal predecessors, (360), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:35,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 364 transitions. [2022-03-20 03:01:35,770 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 364 transitions. Word has length 81 [2022-03-20 03:01:35,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:35,770 INFO L478 AbstractCegarLoop]: Abstraction has 239 states and 364 transitions. [2022-03-20 03:01:35,770 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) [2022-03-20 03:01:35,771 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 364 transitions. [2022-03-20 03:01:35,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-20 03:01:35,771 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:35,771 INFO L499 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] [2022-03-20 03:01:35,771 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 03:01:35,772 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:35,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:35,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1601824128, now seen corresponding path program 1 times [2022-03-20 03:01:35,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:35,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134755067] [2022-03-20 03:01:35,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:35,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:35,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:35,871 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 03:01:35,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:35,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134755067] [2022-03-20 03:01:35,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134755067] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:35,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:35,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:01:35,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302828749] [2022-03-20 03:01:35,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:35,872 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:01:35,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:35,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:01:35,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:01:35,873 INFO L87 Difference]: Start difference. First operand 239 states and 364 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:37,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:37,825 INFO L93 Difference]: Finished difference Result 481 states and 738 transitions. [2022-03-20 03:01:37,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:01:37,828 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-03-20 03:01:37,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:37,829 INFO L225 Difference]: With dead ends: 481 [2022-03-20 03:01:37,829 INFO L226 Difference]: Without dead ends: 268 [2022-03-20 03:01:37,829 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:01:37,830 INFO L913 BasicCegarLoop]: 239 mSDtfsCounter, 19 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:37,830 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 604 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-20 03:01:37,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-03-20 03:01:37,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 255. [2022-03-20 03:01:37,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 250 states have (on average 1.532) internal successors, (383), 250 states have internal predecessors, (383), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:37,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 387 transitions. [2022-03-20 03:01:37,835 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 387 transitions. Word has length 82 [2022-03-20 03:01:37,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:37,835 INFO L478 AbstractCegarLoop]: Abstraction has 255 states and 387 transitions. [2022-03-20 03:01:37,836 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:37,836 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 387 transitions. [2022-03-20 03:01:37,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-20 03:01:37,837 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:37,837 INFO L499 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] [2022-03-20 03:01:37,837 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 03:01:37,837 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:37,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:37,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1692820905, now seen corresponding path program 1 times [2022-03-20 03:01:37,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:37,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839446111] [2022-03-20 03:01:37,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:37,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:37,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:37,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:37,945 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-20 03:01:37,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:37,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839446111] [2022-03-20 03:01:37,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839446111] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:37,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:37,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 03:01:37,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159665468] [2022-03-20 03:01:37,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:37,946 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 03:01:37,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:37,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 03:01:37,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:01:37,947 INFO L87 Difference]: Start difference. First operand 255 states and 387 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 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) [2022-03-20 03:01:39,956 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:01:40,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:40,427 INFO L93 Difference]: Finished difference Result 493 states and 756 transitions. [2022-03-20 03:01:40,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 03:01:40,427 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 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 83 [2022-03-20 03:01:40,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:40,429 INFO L225 Difference]: With dead ends: 493 [2022-03-20 03:01:40,429 INFO L226 Difference]: Without dead ends: 264 [2022-03-20 03:01:40,430 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-20 03:01:40,430 INFO L913 BasicCegarLoop]: 215 mSDtfsCounter, 3 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:40,430 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 681 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 443 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 03:01:40,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-03-20 03:01:40,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2022-03-20 03:01:40,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 259 states have (on average 1.5212355212355213) internal successors, (394), 259 states have internal predecessors, (394), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:40,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 398 transitions. [2022-03-20 03:01:40,437 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 398 transitions. Word has length 83 [2022-03-20 03:01:40,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:40,437 INFO L478 AbstractCegarLoop]: Abstraction has 264 states and 398 transitions. [2022-03-20 03:01:40,437 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 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) [2022-03-20 03:01:40,437 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 398 transitions. [2022-03-20 03:01:40,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-20 03:01:40,438 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:40,438 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:40,439 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 03:01:40,439 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:40,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:40,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1753051486, now seen corresponding path program 1 times [2022-03-20 03:01:40,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:40,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714352935] [2022-03-20 03:01:40,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:40,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:40,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:40,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:40,562 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 03:01:40,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:40,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714352935] [2022-03-20 03:01:40,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714352935] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:40,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:40,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:01:40,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406877367] [2022-03-20 03:01:40,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:40,564 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:01:40,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:40,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:01:40,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:01:40,564 INFO L87 Difference]: Start difference. First operand 264 states and 398 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:43,681 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:01:44,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:44,368 INFO L93 Difference]: Finished difference Result 519 states and 788 transitions. [2022-03-20 03:01:44,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:01:44,368 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-03-20 03:01:44,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:44,369 INFO L225 Difference]: With dead ends: 519 [2022-03-20 03:01:44,369 INFO L226 Difference]: Without dead ends: 281 [2022-03-20 03:01:44,370 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:01:44,370 INFO L913 BasicCegarLoop]: 211 mSDtfsCounter, 34 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:44,370 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 547 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-03-20 03:01:44,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-03-20 03:01:44,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 264. [2022-03-20 03:01:44,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 259 states have (on average 1.5173745173745175) internal successors, (393), 259 states have internal predecessors, (393), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:44,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 397 transitions. [2022-03-20 03:01:44,376 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 397 transitions. Word has length 85 [2022-03-20 03:01:44,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:44,377 INFO L478 AbstractCegarLoop]: Abstraction has 264 states and 397 transitions. [2022-03-20 03:01:44,377 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:44,377 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 397 transitions. [2022-03-20 03:01:44,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-20 03:01:44,377 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:44,378 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:44,378 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 03:01:44,378 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:44,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:44,378 INFO L85 PathProgramCache]: Analyzing trace with hash 22011173, now seen corresponding path program 1 times [2022-03-20 03:01:44,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:44,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541235400] [2022-03-20 03:01:44,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:44,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:44,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:44,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:44,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:44,481 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 03:01:44,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:44,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541235400] [2022-03-20 03:01:44,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541235400] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:44,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:44,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:01:44,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071131985] [2022-03-20 03:01:44,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:44,482 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:01:44,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:44,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:01:44,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:01:44,483 INFO L87 Difference]: Start difference. First operand 264 states and 397 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:47,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:01:48,254 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 [] [2022-03-20 03:01:48,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:48,900 INFO L93 Difference]: Finished difference Result 616 states and 939 transitions. [2022-03-20 03:01:48,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:01:48,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2022-03-20 03:01:48,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:48,902 INFO L225 Difference]: With dead ends: 616 [2022-03-20 03:01:48,902 INFO L226 Difference]: Without dead ends: 378 [2022-03-20 03:01:48,903 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:01:48,903 INFO L913 BasicCegarLoop]: 142 mSDtfsCounter, 129 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:48,903 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 404 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 498 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-03-20 03:01:48,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2022-03-20 03:01:48,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 286. [2022-03-20 03:01:48,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 281 states have (on average 1.5516014234875444) internal successors, (436), 281 states have internal predecessors, (436), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:48,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 440 transitions. [2022-03-20 03:01:48,909 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 440 transitions. Word has length 90 [2022-03-20 03:01:48,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:48,909 INFO L478 AbstractCegarLoop]: Abstraction has 286 states and 440 transitions. [2022-03-20 03:01:48,910 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:48,910 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 440 transitions. [2022-03-20 03:01:48,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-20 03:01:48,910 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:48,911 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:48,911 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 03:01:48,911 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:48,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:48,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1695799758, now seen corresponding path program 1 times [2022-03-20 03:01:48,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:48,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919858174] [2022-03-20 03:01:48,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:48,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:48,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:49,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:49,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:49,008 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 03:01:49,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:49,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919858174] [2022-03-20 03:01:49,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919858174] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:49,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:49,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:01:49,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84727975] [2022-03-20 03:01:49,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:49,009 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:01:49,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:49,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:01:49,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:01:49,009 INFO L87 Difference]: Start difference. First operand 286 states and 440 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:52,362 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:01:52,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:52,844 INFO L93 Difference]: Finished difference Result 655 states and 1013 transitions. [2022-03-20 03:01:52,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:01:52,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-03-20 03:01:52,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:52,846 INFO L225 Difference]: With dead ends: 655 [2022-03-20 03:01:52,846 INFO L226 Difference]: Without dead ends: 395 [2022-03-20 03:01:52,847 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:01:52,848 INFO L913 BasicCegarLoop]: 207 mSDtfsCounter, 95 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:52,850 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 541 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-03-20 03:01:52,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2022-03-20 03:01:52,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 320. [2022-03-20 03:01:52,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 315 states have (on average 1.5587301587301587) internal successors, (491), 315 states have internal predecessors, (491), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:52,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 495 transitions. [2022-03-20 03:01:52,861 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 495 transitions. Word has length 118 [2022-03-20 03:01:52,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:52,862 INFO L478 AbstractCegarLoop]: Abstraction has 320 states and 495 transitions. [2022-03-20 03:01:52,862 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:52,862 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 495 transitions. [2022-03-20 03:01:52,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-20 03:01:52,863 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:52,864 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:52,864 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 03:01:52,864 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:52,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:52,865 INFO L85 PathProgramCache]: Analyzing trace with hash -690709748, now seen corresponding path program 1 times [2022-03-20 03:01:52,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:52,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713964135] [2022-03-20 03:01:52,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:52,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:52,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:53,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:53,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:53,056 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-20 03:01:53,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:53,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713964135] [2022-03-20 03:01:53,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713964135] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:53,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:53,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:01:53,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585509686] [2022-03-20 03:01:53,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:53,057 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:01:53,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:53,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:01:53,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:01:53,058 INFO L87 Difference]: Start difference. First operand 320 states and 495 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:55,534 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:01:56,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:01:56,000 INFO L93 Difference]: Finished difference Result 672 states and 1042 transitions. [2022-03-20 03:01:56,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:01:56,001 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-03-20 03:01:56,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:01:56,002 INFO L225 Difference]: With dead ends: 672 [2022-03-20 03:01:56,002 INFO L226 Difference]: Without dead ends: 378 [2022-03-20 03:01:56,003 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:01:56,003 INFO L913 BasicCegarLoop]: 258 mSDtfsCounter, 37 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:01:56,003 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 641 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-20 03:01:56,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2022-03-20 03:01:56,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 344. [2022-03-20 03:01:56,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 339 states have (on average 1.5575221238938053) internal successors, (528), 339 states have internal predecessors, (528), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:56,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 532 transitions. [2022-03-20 03:01:56,012 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 532 transitions. Word has length 118 [2022-03-20 03:01:56,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:01:56,012 INFO L478 AbstractCegarLoop]: Abstraction has 344 states and 532 transitions. [2022-03-20 03:01:56,012 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:56,012 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 532 transitions. [2022-03-20 03:01:56,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-20 03:01:56,013 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:01:56,013 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:01:56,013 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 03:01:56,013 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:01:56,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:01:56,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1569038945, now seen corresponding path program 1 times [2022-03-20 03:01:56,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:01:56,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811523792] [2022-03-20 03:01:56,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:01:56,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:01:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:56,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:01:56,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:01:56,192 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-20 03:01:56,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:01:56,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811523792] [2022-03-20 03:01:56,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811523792] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:01:56,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:01:56,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:01:56,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902396355] [2022-03-20 03:01:56,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:01:56,194 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:01:56,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:01:56,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:01:56,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:01:56,194 INFO L87 Difference]: Start difference. First operand 344 states and 532 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:01:58,710 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:01:59,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:02:00,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:02:00,665 INFO L93 Difference]: Finished difference Result 669 states and 1044 transitions. [2022-03-20 03:02:00,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:02:00,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-20 03:02:00,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:02:00,667 INFO L225 Difference]: With dead ends: 669 [2022-03-20 03:02:00,668 INFO L226 Difference]: Without dead ends: 351 [2022-03-20 03:02:00,668 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:02:00,669 INFO L913 BasicCegarLoop]: 218 mSDtfsCounter, 30 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-20 03:02:00,669 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 561 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 386 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-03-20 03:02:00,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-03-20 03:02:00,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 344. [2022-03-20 03:02:00,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 339 states have (on average 1.5545722713864307) internal successors, (527), 339 states have internal predecessors, (527), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:00,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 531 transitions. [2022-03-20 03:02:00,679 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 531 transitions. Word has length 123 [2022-03-20 03:02:00,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:02:00,680 INFO L478 AbstractCegarLoop]: Abstraction has 344 states and 531 transitions. [2022-03-20 03:02:00,680 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:00,680 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 531 transitions. [2022-03-20 03:02:00,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-20 03:02:00,681 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:02:00,681 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:02:00,681 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 03:02:00,682 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:02:00,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:02:00,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1768065624, now seen corresponding path program 1 times [2022-03-20 03:02:00,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:02:00,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438992043] [2022-03-20 03:02:00,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:02:00,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:02:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:00,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:02:00,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:00,810 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 03:02:00,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:02:00,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438992043] [2022-03-20 03:02:00,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438992043] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:02:00,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:02:00,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:02:00,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147596804] [2022-03-20 03:02:00,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:02:00,811 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:02:00,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:02:00,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:02:00,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:02:00,812 INFO L87 Difference]: Start difference. First operand 344 states and 531 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:02,166 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:02:03,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:02:03,974 INFO L93 Difference]: Finished difference Result 794 states and 1231 transitions. [2022-03-20 03:02:03,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:02:03,974 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-03-20 03:02:03,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:02:03,976 INFO L225 Difference]: With dead ends: 794 [2022-03-20 03:02:03,976 INFO L226 Difference]: Without dead ends: 476 [2022-03-20 03:02:03,976 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:02:03,977 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 131 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-20 03:02:03,977 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 380 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-20 03:02:03,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-03-20 03:02:03,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 381. [2022-03-20 03:02:03,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 376 states have (on average 1.5664893617021276) internal successors, (589), 376 states have internal predecessors, (589), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:03,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 593 transitions. [2022-03-20 03:02:03,985 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 593 transitions. Word has length 124 [2022-03-20 03:02:03,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:02:03,985 INFO L478 AbstractCegarLoop]: Abstraction has 381 states and 593 transitions. [2022-03-20 03:02:03,985 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:03,985 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 593 transitions. [2022-03-20 03:02:03,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-03-20 03:02:03,986 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:02:03,986 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:02:03,987 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 03:02:03,987 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:02:03,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:02:03,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1003398932, now seen corresponding path program 1 times [2022-03-20 03:02:03,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:02:03,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866984729] [2022-03-20 03:02:03,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:02:03,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:02:04,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:04,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:02:04,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:04,128 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 03:02:04,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:02:04,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866984729] [2022-03-20 03:02:04,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866984729] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:02:04,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:02:04,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:02:04,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003522565] [2022-03-20 03:02:04,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:02:04,130 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:02:04,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:02:04,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:02:04,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:02:04,130 INFO L87 Difference]: Start difference. First operand 381 states and 593 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) [2022-03-20 03:02:06,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:02:06,418 INFO L93 Difference]: Finished difference Result 808 states and 1258 transitions. [2022-03-20 03:02:06,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:02:06,418 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 [2022-03-20 03:02:06,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:02:06,420 INFO L225 Difference]: With dead ends: 808 [2022-03-20 03:02:06,420 INFO L226 Difference]: Without dead ends: 453 [2022-03-20 03:02:06,420 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:02:06,421 INFO L913 BasicCegarLoop]: 189 mSDtfsCounter, 84 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 03:02:06,421 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 505 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 03:02:06,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-03-20 03:02:06,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 387. [2022-03-20 03:02:06,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.568062827225131) internal successors, (599), 382 states have internal predecessors, (599), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:06,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 603 transitions. [2022-03-20 03:02:06,427 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 603 transitions. Word has length 125 [2022-03-20 03:02:06,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:02:06,428 INFO L478 AbstractCegarLoop]: Abstraction has 387 states and 603 transitions. [2022-03-20 03:02:06,428 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) [2022-03-20 03:02:06,428 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 603 transitions. [2022-03-20 03:02:06,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-20 03:02:06,429 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:02:06,429 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:02:06,429 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 03:02:06,429 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:02:06,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:02:06,429 INFO L85 PathProgramCache]: Analyzing trace with hash 2043463772, now seen corresponding path program 1 times [2022-03-20 03:02:06,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:02:06,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697703365] [2022-03-20 03:02:06,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:02:06,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:02:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:06,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:02:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:06,578 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:02:06,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:02:06,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697703365] [2022-03-20 03:02:06,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697703365] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:02:06,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:02:06,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:02:06,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564105074] [2022-03-20 03:02:06,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:02:06,581 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:02:06,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:02:06,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:02:06,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:02:06,582 INFO L87 Difference]: Start difference. First operand 387 states and 603 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:09,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:02:09,291 INFO L93 Difference]: Finished difference Result 812 states and 1265 transitions. [2022-03-20 03:02:09,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:02:09,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-20 03:02:09,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:02:09,294 INFO L225 Difference]: With dead ends: 812 [2022-03-20 03:02:09,294 INFO L226 Difference]: Without dead ends: 451 [2022-03-20 03:02:09,295 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:02:09,295 INFO L913 BasicCegarLoop]: 191 mSDtfsCounter, 105 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:02:09,295 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 507 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-20 03:02:09,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-03-20 03:02:09,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 387. [2022-03-20 03:02:09,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.5654450261780104) internal successors, (598), 382 states have internal predecessors, (598), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:09,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 602 transitions. [2022-03-20 03:02:09,306 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 602 transitions. Word has length 131 [2022-03-20 03:02:09,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:02:09,306 INFO L478 AbstractCegarLoop]: Abstraction has 387 states and 602 transitions. [2022-03-20 03:02:09,307 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:09,307 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 602 transitions. [2022-03-20 03:02:09,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-20 03:02:09,308 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:02:09,308 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:02:09,308 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 03:02:09,308 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:02:09,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:02:09,308 INFO L85 PathProgramCache]: Analyzing trace with hash -926647330, now seen corresponding path program 1 times [2022-03-20 03:02:09,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:02:09,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61564548] [2022-03-20 03:02:09,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:02:09,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:02:09,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:09,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:02:09,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:09,407 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:02:09,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:02:09,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61564548] [2022-03-20 03:02:09,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61564548] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:02:09,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:02:09,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:02:09,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70503684] [2022-03-20 03:02:09,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:02:09,408 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:02:09,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:02:09,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:02:09,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:02:09,408 INFO L87 Difference]: Start difference. First operand 387 states and 602 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:11,365 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:02:12,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:02:12,777 INFO L93 Difference]: Finished difference Result 838 states and 1303 transitions. [2022-03-20 03:02:12,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:02:12,777 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-20 03:02:12,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:02:12,779 INFO L225 Difference]: With dead ends: 838 [2022-03-20 03:02:12,779 INFO L226 Difference]: Without dead ends: 477 [2022-03-20 03:02:12,780 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:02:12,780 INFO L913 BasicCegarLoop]: 132 mSDtfsCounter, 152 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-20 03:02:12,780 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 384 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-20 03:02:12,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-03-20 03:02:12,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 387. [2022-03-20 03:02:12,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.5549738219895288) internal successors, (594), 382 states have internal predecessors, (594), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:12,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 598 transitions. [2022-03-20 03:02:12,786 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 598 transitions. Word has length 131 [2022-03-20 03:02:12,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:02:12,787 INFO L478 AbstractCegarLoop]: Abstraction has 387 states and 598 transitions. [2022-03-20 03:02:12,787 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:12,787 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 598 transitions. [2022-03-20 03:02:12,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-20 03:02:12,788 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:02:12,788 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:02:12,788 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 03:02:12,788 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:02:12,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:02:12,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1811432023, now seen corresponding path program 1 times [2022-03-20 03:02:12,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:02:12,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163438183] [2022-03-20 03:02:12,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:02:12,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:02:12,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:12,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:02:12,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:12,892 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 03:02:12,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:02:12,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163438183] [2022-03-20 03:02:12,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163438183] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:02:12,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:02:12,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:02:12,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190653423] [2022-03-20 03:02:12,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:02:12,892 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:02:12,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:02:12,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:02:12,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:02:12,893 INFO L87 Difference]: Start difference. First operand 387 states and 598 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:15,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:02:15,085 INFO L93 Difference]: Finished difference Result 805 states and 1244 transitions. [2022-03-20 03:02:15,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:02:15,086 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-03-20 03:02:15,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:02:15,087 INFO L225 Difference]: With dead ends: 805 [2022-03-20 03:02:15,087 INFO L226 Difference]: Without dead ends: 444 [2022-03-20 03:02:15,088 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:02:15,088 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 69 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 03:02:15,088 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 515 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 03:02:15,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-03-20 03:02:15,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 390. [2022-03-20 03:02:15,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 385 states have (on average 1.5506493506493506) internal successors, (597), 385 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) [2022-03-20 03:02:15,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 601 transitions. [2022-03-20 03:02:15,099 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 601 transitions. Word has length 132 [2022-03-20 03:02:15,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:02:15,100 INFO L478 AbstractCegarLoop]: Abstraction has 390 states and 601 transitions. [2022-03-20 03:02:15,100 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:15,100 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 601 transitions. [2022-03-20 03:02:15,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-20 03:02:15,101 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:02:15,101 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:02:15,101 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 03:02:15,101 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:02:15,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:02:15,102 INFO L85 PathProgramCache]: Analyzing trace with hash -2144454492, now seen corresponding path program 1 times [2022-03-20 03:02:15,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:02:15,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518023096] [2022-03-20 03:02:15,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:02:15,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:02:15,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:15,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:02:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:15,222 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:02:15,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:02:15,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518023096] [2022-03-20 03:02:15,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518023096] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:02:15,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:02:15,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:02:15,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437644859] [2022-03-20 03:02:15,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:02:15,223 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:02:15,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:02:15,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:02:15,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:02:15,223 INFO L87 Difference]: Start difference. First operand 390 states and 601 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:17,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:02:17,389 INFO L93 Difference]: Finished difference Result 798 states and 1233 transitions. [2022-03-20 03:02:17,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:02:17,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 135 [2022-03-20 03:02:17,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:02:17,391 INFO L225 Difference]: With dead ends: 798 [2022-03-20 03:02:17,391 INFO L226 Difference]: Without dead ends: 434 [2022-03-20 03:02:17,392 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:02:17,392 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 94 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-20 03:02:17,392 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 517 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-20 03:02:17,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2022-03-20 03:02:17,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 390. [2022-03-20 03:02:17,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 385 states have (on average 1.5480519480519481) internal successors, (596), 385 states have internal predecessors, (596), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:17,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 600 transitions. [2022-03-20 03:02:17,398 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 600 transitions. Word has length 135 [2022-03-20 03:02:17,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:02:17,398 INFO L478 AbstractCegarLoop]: Abstraction has 390 states and 600 transitions. [2022-03-20 03:02:17,398 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:17,398 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 600 transitions. [2022-03-20 03:02:17,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-20 03:02:17,399 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:02:17,399 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:02:17,399 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 03:02:17,400 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:02:17,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:02:17,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1564236582, now seen corresponding path program 1 times [2022-03-20 03:02:17,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:02:17,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552523778] [2022-03-20 03:02:17,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:02:17,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:02:17,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:17,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:02:17,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:17,543 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:02:17,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:02:17,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552523778] [2022-03-20 03:02:17,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552523778] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:02:17,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:02:17,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:02:17,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226080338] [2022-03-20 03:02:17,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:02:17,544 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:02:17,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:02:17,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:02:17,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:02:17,544 INFO L87 Difference]: Start difference. First operand 390 states and 600 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:19,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:02:21,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:02:21,350 INFO L93 Difference]: Finished difference Result 836 states and 1288 transitions. [2022-03-20 03:02:21,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:02:21,350 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 135 [2022-03-20 03:02:21,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:02:21,352 INFO L225 Difference]: With dead ends: 836 [2022-03-20 03:02:21,352 INFO L226 Difference]: Without dead ends: 472 [2022-03-20 03:02:21,352 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:02:21,353 INFO L913 BasicCegarLoop]: 143 mSDtfsCounter, 153 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-20 03:02:21,353 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 406 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-03-20 03:02:21,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2022-03-20 03:02:21,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 390. [2022-03-20 03:02:21,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 385 states have (on average 1.535064935064935) internal successors, (591), 385 states have internal predecessors, (591), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:21,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 595 transitions. [2022-03-20 03:02:21,359 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 595 transitions. Word has length 135 [2022-03-20 03:02:21,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:02:21,376 INFO L478 AbstractCegarLoop]: Abstraction has 390 states and 595 transitions. [2022-03-20 03:02:21,376 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:21,377 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 595 transitions. [2022-03-20 03:02:21,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-03-20 03:02:21,377 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:02:21,378 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:02:21,378 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-20 03:02:21,378 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:02:21,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:02:21,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1612568441, now seen corresponding path program 1 times [2022-03-20 03:02:21,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:02:21,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122283266] [2022-03-20 03:02:21,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:02:21,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:02:21,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:21,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:02:21,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:21,484 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:02:21,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:02:21,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122283266] [2022-03-20 03:02:21,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122283266] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:02:21,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:02:21,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:02:21,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939010253] [2022-03-20 03:02:21,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:02:21,485 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:02:21,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:02:21,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:02:21,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:02:21,486 INFO L87 Difference]: Start difference. First operand 390 states and 595 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:22,867 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:02:25,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:02:25,175 INFO L93 Difference]: Finished difference Result 836 states and 1278 transitions. [2022-03-20 03:02:25,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:02:25,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 140 [2022-03-20 03:02:25,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:02:25,178 INFO L225 Difference]: With dead ends: 836 [2022-03-20 03:02:25,178 INFO L226 Difference]: Without dead ends: 472 [2022-03-20 03:02:25,179 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:02:25,179 INFO L913 BasicCegarLoop]: 150 mSDtfsCounter, 142 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:02:25,179 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 420 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-20 03:02:25,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2022-03-20 03:02:25,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 390. [2022-03-20 03:02:25,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 385 states have (on average 1.5246753246753246) internal successors, (587), 385 states have internal predecessors, (587), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:25,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 591 transitions. [2022-03-20 03:02:25,188 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 591 transitions. Word has length 140 [2022-03-20 03:02:25,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:02:25,188 INFO L478 AbstractCegarLoop]: Abstraction has 390 states and 591 transitions. [2022-03-20 03:02:25,188 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:25,188 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 591 transitions. [2022-03-20 03:02:25,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-03-20 03:02:25,189 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:02:25,189 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:02:25,189 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-20 03:02:25,190 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:02:25,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:02:25,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1641068731, now seen corresponding path program 1 times [2022-03-20 03:02:25,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:02:25,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572689034] [2022-03-20 03:02:25,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:02:25,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:02:25,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:25,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:02:25,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:25,321 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 03:02:25,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:02:25,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572689034] [2022-03-20 03:02:25,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572689034] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:02:25,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:02:25,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:02:25,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289491326] [2022-03-20 03:02:25,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:02:25,322 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:02:25,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:02:25,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:02:25,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:02:25,323 INFO L87 Difference]: Start difference. First operand 390 states and 591 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:26,889 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:02:29,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:02:29,566 INFO L93 Difference]: Finished difference Result 912 states and 1394 transitions. [2022-03-20 03:02:29,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:02:29,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 140 [2022-03-20 03:02:29,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:02:29,569 INFO L225 Difference]: With dead ends: 912 [2022-03-20 03:02:29,569 INFO L226 Difference]: Without dead ends: 548 [2022-03-20 03:02:29,570 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:02:29,571 INFO L913 BasicCegarLoop]: 149 mSDtfsCounter, 133 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-20 03:02:29,571 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 418 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-20 03:02:29,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-03-20 03:02:29,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 454. [2022-03-20 03:02:29,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 449 states have (on average 1.5278396436525612) internal successors, (686), 449 states have internal predecessors, (686), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:29,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 690 transitions. [2022-03-20 03:02:29,595 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 690 transitions. Word has length 140 [2022-03-20 03:02:29,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:02:29,596 INFO L478 AbstractCegarLoop]: Abstraction has 454 states and 690 transitions. [2022-03-20 03:02:29,596 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:29,596 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 690 transitions. [2022-03-20 03:02:29,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-20 03:02:29,597 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:02:29,597 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:02:29,598 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-20 03:02:29,598 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:02:29,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:02:29,598 INFO L85 PathProgramCache]: Analyzing trace with hash 533807610, now seen corresponding path program 1 times [2022-03-20 03:02:29,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:02:29,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745931634] [2022-03-20 03:02:29,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:02:29,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:02:29,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:29,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:02:29,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:29,723 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-20 03:02:29,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:02:29,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745931634] [2022-03-20 03:02:29,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745931634] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:02:29,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:02:29,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:02:29,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222134573] [2022-03-20 03:02:29,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:02:29,725 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:02:29,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:02:29,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:02:29,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:02:29,726 INFO L87 Difference]: Start difference. First operand 454 states and 690 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:31,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:02:31,756 INFO L93 Difference]: Finished difference Result 954 states and 1456 transitions. [2022-03-20 03:02:31,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:02:31,756 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-03-20 03:02:31,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:02:31,758 INFO L225 Difference]: With dead ends: 954 [2022-03-20 03:02:31,758 INFO L226 Difference]: Without dead ends: 526 [2022-03-20 03:02:31,759 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:02:31,759 INFO L913 BasicCegarLoop]: 153 mSDtfsCounter, 149 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:02:31,759 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 426 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-20 03:02:31,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2022-03-20 03:02:31,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 454. [2022-03-20 03:02:31,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 449 states have (on average 1.510022271714922) internal successors, (678), 449 states have internal predecessors, (678), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:31,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 682 transitions. [2022-03-20 03:02:31,765 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 682 transitions. Word has length 145 [2022-03-20 03:02:31,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:02:31,766 INFO L478 AbstractCegarLoop]: Abstraction has 454 states and 682 transitions. [2022-03-20 03:02:31,766 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:31,766 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 682 transitions. [2022-03-20 03:02:31,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-20 03:02:31,767 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:02:31,767 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:02:31,771 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-20 03:02:31,771 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:02:31,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:02:31,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1306093761, now seen corresponding path program 1 times [2022-03-20 03:02:31,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:02:31,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855151148] [2022-03-20 03:02:31,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:02:31,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:02:31,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:31,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:02:31,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:31,867 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:02:31,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:02:31,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855151148] [2022-03-20 03:02:31,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855151148] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:02:31,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:02:31,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:02:31,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645174779] [2022-03-20 03:02:31,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:02:31,868 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:02:31,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:02:31,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:02:31,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:02:31,868 INFO L87 Difference]: Start difference. First operand 454 states and 682 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) [2022-03-20 03:02:34,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:02:34,292 INFO L93 Difference]: Finished difference Result 994 states and 1502 transitions. [2022-03-20 03:02:34,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:02:34,292 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 145 [2022-03-20 03:02:34,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:02:34,295 INFO L225 Difference]: With dead ends: 994 [2022-03-20 03:02:34,295 INFO L226 Difference]: Without dead ends: 566 [2022-03-20 03:02:34,296 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:02:34,296 INFO L913 BasicCegarLoop]: 153 mSDtfsCounter, 129 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 03:02:34,296 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 426 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 03:02:34,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2022-03-20 03:02:34,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 484. [2022-03-20 03:02:34,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 479 states have (on average 1.498956158663883) internal successors, (718), 479 states have internal predecessors, (718), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:34,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 722 transitions. [2022-03-20 03:02:34,306 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 722 transitions. Word has length 145 [2022-03-20 03:02:34,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:02:34,307 INFO L478 AbstractCegarLoop]: Abstraction has 484 states and 722 transitions. [2022-03-20 03:02:34,307 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) [2022-03-20 03:02:34,307 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 722 transitions. [2022-03-20 03:02:34,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-20 03:02:34,308 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:02:34,308 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:02:34,308 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-20 03:02:34,308 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:02:34,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:02:34,309 INFO L85 PathProgramCache]: Analyzing trace with hash 174189256, now seen corresponding path program 1 times [2022-03-20 03:02:34,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:02:34,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988163375] [2022-03-20 03:02:34,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:02:34,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:02:34,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:34,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:02:34,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:34,453 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 03:02:34,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:02:34,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988163375] [2022-03-20 03:02:34,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988163375] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:02:34,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:02:34,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:02:34,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95740558] [2022-03-20 03:02:34,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:02:34,454 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:02:34,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:02:34,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:02:34,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:02:34,455 INFO L87 Difference]: Start difference. First operand 484 states and 722 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) [2022-03-20 03:02:37,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:02:37,126 INFO L93 Difference]: Finished difference Result 974 states and 1461 transitions. [2022-03-20 03:02:37,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:02:37,126 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 [2022-03-20 03:02:37,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:02:37,128 INFO L225 Difference]: With dead ends: 974 [2022-03-20 03:02:37,128 INFO L226 Difference]: Without dead ends: 516 [2022-03-20 03:02:37,129 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:02:37,132 INFO L913 BasicCegarLoop]: 211 mSDtfsCounter, 66 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:02:37,133 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 549 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-20 03:02:37,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2022-03-20 03:02:37,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 484. [2022-03-20 03:02:37,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 479 states have (on average 1.4968684759916493) internal successors, (717), 479 states have internal predecessors, (717), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:37,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 721 transitions. [2022-03-20 03:02:37,141 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 721 transitions. Word has length 146 [2022-03-20 03:02:37,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:02:37,141 INFO L478 AbstractCegarLoop]: Abstraction has 484 states and 721 transitions. [2022-03-20 03:02:37,141 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) [2022-03-20 03:02:37,141 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 721 transitions. [2022-03-20 03:02:37,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-20 03:02:37,142 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:02:37,142 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:02:37,142 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-20 03:02:37,142 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:02:37,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:02:37,143 INFO L85 PathProgramCache]: Analyzing trace with hash -937790019, now seen corresponding path program 1 times [2022-03-20 03:02:37,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:02:37,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238579191] [2022-03-20 03:02:37,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:02:37,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:02:37,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:37,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:02:37,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:37,236 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-20 03:02:37,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:02:37,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238579191] [2022-03-20 03:02:37,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238579191] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:02:37,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:02:37,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:02:37,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405988557] [2022-03-20 03:02:37,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:02:37,237 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:02:37,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:02:37,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:02:37,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:02:37,237 INFO L87 Difference]: Start difference. First operand 484 states and 721 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:40,233 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:02:40,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:02:40,587 INFO L93 Difference]: Finished difference Result 1397 states and 2101 transitions. [2022-03-20 03:02:40,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:02:40,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have 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 [2022-03-20 03:02:40,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:02:40,591 INFO L225 Difference]: With dead ends: 1397 [2022-03-20 03:02:40,592 INFO L226 Difference]: Without dead ends: 939 [2022-03-20 03:02:40,593 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:02:40,593 INFO L913 BasicCegarLoop]: 253 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-20 03:02:40,593 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 447 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-20 03:02:40,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2022-03-20 03:02:40,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 939. [2022-03-20 03:02:40,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 934 states have (on average 1.488222698072805) internal successors, (1390), 934 states have internal predecessors, (1390), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:40,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1394 transitions. [2022-03-20 03:02:40,607 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1394 transitions. Word has length 147 [2022-03-20 03:02:40,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:02:40,608 INFO L478 AbstractCegarLoop]: Abstraction has 939 states and 1394 transitions. [2022-03-20 03:02:40,608 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:40,608 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1394 transitions. [2022-03-20 03:02:40,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-20 03:02:40,610 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:02:40,610 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:02:40,610 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-20 03:02:40,610 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:02:40,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:02:40,611 INFO L85 PathProgramCache]: Analyzing trace with hash 2050034879, now seen corresponding path program 1 times [2022-03-20 03:02:40,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:02:40,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975687037] [2022-03-20 03:02:40,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:02:40,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:02:40,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:40,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:02:40,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:40,711 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-03-20 03:02:40,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:02:40,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975687037] [2022-03-20 03:02:40,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975687037] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:02:40,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:02:40,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:02:40,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264207737] [2022-03-20 03:02:40,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:02:40,712 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:02:40,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:02:40,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:02:40,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:02:40,712 INFO L87 Difference]: Start difference. First operand 939 states and 1394 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:42,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:02:42,864 INFO L93 Difference]: Finished difference Result 1879 states and 2795 transitions. [2022-03-20 03:02:42,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:02:42,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have 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 [2022-03-20 03:02:42,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:02:42,867 INFO L225 Difference]: With dead ends: 1879 [2022-03-20 03:02:42,867 INFO L226 Difference]: Without dead ends: 966 [2022-03-20 03:02:42,868 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:02:42,869 INFO L913 BasicCegarLoop]: 235 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-20 03:02:42,869 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 429 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-20 03:02:42,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2022-03-20 03:02:42,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 966. [2022-03-20 03:02:42,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 961 states have (on average 1.4828303850156088) internal successors, (1425), 961 states have internal predecessors, (1425), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:42,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1429 transitions. [2022-03-20 03:02:42,881 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1429 transitions. Word has length 147 [2022-03-20 03:02:42,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:02:42,881 INFO L478 AbstractCegarLoop]: Abstraction has 966 states and 1429 transitions. [2022-03-20 03:02:42,881 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:42,881 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1429 transitions. [2022-03-20 03:02:42,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-20 03:02:42,883 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:02:42,883 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:02:42,883 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-20 03:02:42,883 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:02:42,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:02:42,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1756885311, now seen corresponding path program 1 times [2022-03-20 03:02:42,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:02:42,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498859531] [2022-03-20 03:02:42,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:02:42,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:02:42,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:42,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:02:42,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:42,985 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-03-20 03:02:42,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:02:42,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498859531] [2022-03-20 03:02:42,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498859531] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:02:42,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:02:42,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:02:42,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925562035] [2022-03-20 03:02:42,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:02:42,986 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:02:42,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:02:42,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:02:42,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:02:42,987 INFO L87 Difference]: Start difference. First operand 966 states and 1429 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 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) [2022-03-20 03:02:44,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:02:44,589 INFO L93 Difference]: Finished difference Result 1908 states and 2831 transitions. [2022-03-20 03:02:44,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:02:44,589 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 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 147 [2022-03-20 03:02:44,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:02:44,592 INFO L225 Difference]: With dead ends: 1908 [2022-03-20 03:02:44,592 INFO L226 Difference]: Without dead ends: 968 [2022-03-20 03:02:44,594 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:02:44,594 INFO L913 BasicCegarLoop]: 223 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-20 03:02:44,594 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 408 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-20 03:02:44,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2022-03-20 03:02:44,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 968. [2022-03-20 03:02:44,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.4818276220145379) internal successors, (1427), 963 states have internal predecessors, (1427), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:44,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1431 transitions. [2022-03-20 03:02:44,611 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1431 transitions. Word has length 147 [2022-03-20 03:02:44,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:02:44,611 INFO L478 AbstractCegarLoop]: Abstraction has 968 states and 1431 transitions. [2022-03-20 03:02:44,612 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 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) [2022-03-20 03:02:44,612 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1431 transitions. [2022-03-20 03:02:44,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-03-20 03:02:44,614 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:02:44,614 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:02:44,614 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-20 03:02:44,614 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:02:44,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:02:44,615 INFO L85 PathProgramCache]: Analyzing trace with hash -2131583065, now seen corresponding path program 1 times [2022-03-20 03:02:44,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:02:44,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266395010] [2022-03-20 03:02:44,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:02:44,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:02:44,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:44,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:02:44,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:44,726 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 03:02:44,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:02:44,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266395010] [2022-03-20 03:02:44,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266395010] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:02:44,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:02:44,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:02:44,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99924448] [2022-03-20 03:02:44,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:02:44,727 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:02:44,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:02:44,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:02:44,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:02:44,728 INFO L87 Difference]: Start difference. First operand 968 states and 1431 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 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) [2022-03-20 03:02:46,354 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:02:47,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:02:47,514 INFO L93 Difference]: Finished difference Result 2363 states and 3519 transitions. [2022-03-20 03:02:47,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:02:47,515 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 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 149 [2022-03-20 03:02:47,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:02:47,518 INFO L225 Difference]: With dead ends: 2363 [2022-03-20 03:02:47,518 INFO L226 Difference]: Without dead ends: 1423 [2022-03-20 03:02:47,520 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:02:47,520 INFO L913 BasicCegarLoop]: 395 mSDtfsCounter, 153 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-20 03:02:47,520 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 589 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-20 03:02:47,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1423 states. [2022-03-20 03:02:47,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1423 to 1423. [2022-03-20 03:02:47,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1423 states, 1418 states have (on average 1.4809590973201692) internal successors, (2100), 1418 states have internal predecessors, (2100), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:47,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 2104 transitions. [2022-03-20 03:02:47,537 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 2104 transitions. Word has length 149 [2022-03-20 03:02:47,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:02:47,538 INFO L478 AbstractCegarLoop]: Abstraction has 1423 states and 2104 transitions. [2022-03-20 03:02:47,538 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 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) [2022-03-20 03:02:47,538 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 2104 transitions. [2022-03-20 03:02:47,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-03-20 03:02:47,540 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:02:47,540 INFO L499 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] [2022-03-20 03:02:47,540 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-20 03:02:47,540 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:02:47,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:02:47,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1674775732, now seen corresponding path program 1 times [2022-03-20 03:02:47,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:02:47,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981171910] [2022-03-20 03:02:47,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:02:47,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:02:47,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:47,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:02:47,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:47,667 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-03-20 03:02:47,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:02:47,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981171910] [2022-03-20 03:02:47,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981171910] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:02:47,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:02:47,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:02:47,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74197279] [2022-03-20 03:02:47,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:02:47,668 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:02:47,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:02:47,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:02:47,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:02:47,668 INFO L87 Difference]: Start difference. First operand 1423 states and 2104 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:50,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:02:50,267 INFO L93 Difference]: Finished difference Result 2968 states and 4395 transitions. [2022-03-20 03:02:50,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:02:50,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 178 [2022-03-20 03:02:50,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:02:50,273 INFO L225 Difference]: With dead ends: 2968 [2022-03-20 03:02:50,273 INFO L226 Difference]: Without dead ends: 1573 [2022-03-20 03:02:50,275 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:02:50,275 INFO L913 BasicCegarLoop]: 256 mSDtfsCounter, 40 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 03:02:50,275 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 637 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 03:02:50,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2022-03-20 03:02:50,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1507. [2022-03-20 03:02:50,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1502 states have (on average 1.4800266311584553) internal successors, (2223), 1502 states have internal predecessors, (2223), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:50,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 2227 transitions. [2022-03-20 03:02:50,301 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 2227 transitions. Word has length 178 [2022-03-20 03:02:50,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:02:50,302 INFO L478 AbstractCegarLoop]: Abstraction has 1507 states and 2227 transitions. [2022-03-20 03:02:50,302 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:50,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 2227 transitions. [2022-03-20 03:02:50,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-03-20 03:02:50,305 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:02:50,305 INFO L499 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] [2022-03-20 03:02:50,306 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-20 03:02:50,306 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:02:50,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:02:50,306 INFO L85 PathProgramCache]: Analyzing trace with hash 950265452, now seen corresponding path program 1 times [2022-03-20 03:02:50,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:02:50,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955348831] [2022-03-20 03:02:50,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:02:50,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:02:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:50,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:02:50,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:50,462 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-03-20 03:02:50,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:02:50,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955348831] [2022-03-20 03:02:50,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955348831] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:02:50,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:02:50,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:02:50,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117302416] [2022-03-20 03:02:50,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:02:50,465 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:02:50,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:02:50,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:02:50,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:02:50,466 INFO L87 Difference]: Start difference. First operand 1507 states and 2227 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:53,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:02:53,075 INFO L93 Difference]: Finished difference Result 3197 states and 4709 transitions. [2022-03-20 03:02:53,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:02:53,076 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 201 [2022-03-20 03:02:53,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:02:53,080 INFO L225 Difference]: With dead ends: 3197 [2022-03-20 03:02:53,080 INFO L226 Difference]: Without dead ends: 1718 [2022-03-20 03:02:53,081 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:02:53,082 INFO L913 BasicCegarLoop]: 145 mSDtfsCounter, 134 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 03:02:53,082 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 410 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 03:02:53,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2022-03-20 03:02:53,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 1507. [2022-03-20 03:02:53,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1502 states have (on average 1.4640479360852197) internal successors, (2199), 1502 states have internal predecessors, (2199), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:53,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 2203 transitions. [2022-03-20 03:02:53,102 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 2203 transitions. Word has length 201 [2022-03-20 03:02:53,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:02:53,102 INFO L478 AbstractCegarLoop]: Abstraction has 1507 states and 2203 transitions. [2022-03-20 03:02:53,102 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:53,103 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 2203 transitions. [2022-03-20 03:02:53,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-03-20 03:02:53,105 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:02:53,105 INFO L499 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] [2022-03-20 03:02:53,105 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-20 03:02:53,105 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:02:53,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:02:53,106 INFO L85 PathProgramCache]: Analyzing trace with hash -880882500, now seen corresponding path program 1 times [2022-03-20 03:02:53,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:02:53,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554476860] [2022-03-20 03:02:53,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:02:53,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:02:53,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:53,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:02:53,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:53,225 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-03-20 03:02:53,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:02:53,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554476860] [2022-03-20 03:02:53,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554476860] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:02:53,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:02:53,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:02:53,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961838229] [2022-03-20 03:02:53,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:02:53,226 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:02:53,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:02:53,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:02:53,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:02:53,226 INFO L87 Difference]: Start difference. First operand 1507 states and 2203 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:55,075 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:02:56,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:02:56,737 INFO L93 Difference]: Finished difference Result 3470 states and 5097 transitions. [2022-03-20 03:02:56,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:02:56,737 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 202 [2022-03-20 03:02:56,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:02:56,744 INFO L225 Difference]: With dead ends: 3470 [2022-03-20 03:02:56,744 INFO L226 Difference]: Without dead ends: 1991 [2022-03-20 03:02:56,746 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:02:56,752 INFO L913 BasicCegarLoop]: 202 mSDtfsCounter, 159 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-20 03:02:56,753 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 387 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-20 03:02:56,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2022-03-20 03:02:56,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1991. [2022-03-20 03:02:56,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1991 states, 1986 states have (on average 1.4662638469284994) internal successors, (2912), 1986 states have internal predecessors, (2912), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:56,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1991 states to 1991 states and 2916 transitions. [2022-03-20 03:02:56,793 INFO L78 Accepts]: Start accepts. Automaton has 1991 states and 2916 transitions. Word has length 202 [2022-03-20 03:02:56,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:02:56,794 INFO L478 AbstractCegarLoop]: Abstraction has 1991 states and 2916 transitions. [2022-03-20 03:02:56,794 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:56,794 INFO L276 IsEmpty]: Start isEmpty. Operand 1991 states and 2916 transitions. [2022-03-20 03:02:56,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-03-20 03:02:56,798 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:02:56,799 INFO L499 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] [2022-03-20 03:02:56,799 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-20 03:02:56,799 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:02:56,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:02:56,799 INFO L85 PathProgramCache]: Analyzing trace with hash -637308153, now seen corresponding path program 1 times [2022-03-20 03:02:56,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:02:56,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386683047] [2022-03-20 03:02:56,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:02:56,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:02:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:56,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:02:56,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:56,937 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-03-20 03:02:56,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:02:56,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386683047] [2022-03-20 03:02:56,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386683047] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:02:56,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:02:56,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:02:56,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231645470] [2022-03-20 03:02:56,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:02:56,938 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:02:56,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:02:56,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:02:56,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:02:56,940 INFO L87 Difference]: Start difference. First operand 1991 states and 2916 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:59,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:02:59,276 INFO L93 Difference]: Finished difference Result 4023 states and 5901 transitions. [2022-03-20 03:02:59,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:02:59,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 232 [2022-03-20 03:02:59,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:02:59,282 INFO L225 Difference]: With dead ends: 4023 [2022-03-20 03:02:59,282 INFO L226 Difference]: Without dead ends: 2060 [2022-03-20 03:02:59,285 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:02:59,285 INFO L913 BasicCegarLoop]: 250 mSDtfsCounter, 38 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 03:02:59,288 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 625 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 03:02:59,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2060 states. [2022-03-20 03:02:59,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2060 to 1991. [2022-03-20 03:02:59,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1991 states, 1986 states have (on average 1.4642497482376637) internal successors, (2908), 1986 states have internal predecessors, (2908), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:59,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1991 states to 1991 states and 2912 transitions. [2022-03-20 03:02:59,319 INFO L78 Accepts]: Start accepts. Automaton has 1991 states and 2912 transitions. Word has length 232 [2022-03-20 03:02:59,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:02:59,319 INFO L478 AbstractCegarLoop]: Abstraction has 1991 states and 2912 transitions. [2022-03-20 03:02:59,320 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:02:59,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1991 states and 2912 transitions. [2022-03-20 03:02:59,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-03-20 03:02:59,322 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:02:59,323 INFO L499 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] [2022-03-20 03:02:59,323 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-20 03:02:59,323 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:02:59,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:02:59,323 INFO L85 PathProgramCache]: Analyzing trace with hash 476673120, now seen corresponding path program 1 times [2022-03-20 03:02:59,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:02:59,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051734201] [2022-03-20 03:02:59,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:02:59,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:02:59,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:59,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:02:59,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:02:59,456 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-03-20 03:02:59,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:02:59,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051734201] [2022-03-20 03:02:59,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051734201] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:02:59,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:02:59,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:02:59,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374102530] [2022-03-20 03:02:59,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:02:59,458 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:02:59,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:02:59,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:02:59,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:02:59,459 INFO L87 Difference]: Start difference. First operand 1991 states and 2912 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) [2022-03-20 03:03:02,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:03:02,107 INFO L93 Difference]: Finished difference Result 4235 states and 6176 transitions. [2022-03-20 03:03:02,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:03:02,108 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 [2022-03-20 03:03:02,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:03:02,114 INFO L225 Difference]: With dead ends: 4235 [2022-03-20 03:03:02,114 INFO L226 Difference]: Without dead ends: 2272 [2022-03-20 03:03:02,117 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:03:02,117 INFO L913 BasicCegarLoop]: 141 mSDtfsCounter, 135 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 03:03:02,117 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 402 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 03:03:02,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2272 states. [2022-03-20 03:03:02,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2272 to 1991. [2022-03-20 03:03:02,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1991 states, 1986 states have (on average 1.446122860020141) internal successors, (2872), 1986 states have internal predecessors, (2872), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:02,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1991 states to 1991 states and 2876 transitions. [2022-03-20 03:03:02,150 INFO L78 Accepts]: Start accepts. Automaton has 1991 states and 2876 transitions. Word has length 233 [2022-03-20 03:03:02,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:03:02,150 INFO L478 AbstractCegarLoop]: Abstraction has 1991 states and 2876 transitions. [2022-03-20 03:03:02,150 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) [2022-03-20 03:03:02,150 INFO L276 IsEmpty]: Start isEmpty. Operand 1991 states and 2876 transitions. [2022-03-20 03:03:02,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-03-20 03:03:02,153 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:03:02,154 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 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] [2022-03-20 03:03:02,154 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-20 03:03:02,154 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:03:02,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:03:02,154 INFO L85 PathProgramCache]: Analyzing trace with hash -240227189, now seen corresponding path program 1 times [2022-03-20 03:03:02,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:03:02,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415911319] [2022-03-20 03:03:02,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:03:02,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:03:02,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:02,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:03:02,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:02,348 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-03-20 03:03:02,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:03:02,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415911319] [2022-03-20 03:03:02,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415911319] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:03:02,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:03:02,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:03:02,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66280439] [2022-03-20 03:03:02,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:03:02,350 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:03:02,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:03:02,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:03:02,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:03:02,352 INFO L87 Difference]: Start difference. First operand 1991 states and 2876 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:03,650 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 [] [2022-03-20 03:03:05,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:03:05,351 INFO L93 Difference]: Finished difference Result 4437 states and 6422 transitions. [2022-03-20 03:03:05,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:03:05,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 235 [2022-03-20 03:03:05,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:03:05,356 INFO L225 Difference]: With dead ends: 4437 [2022-03-20 03:03:05,357 INFO L226 Difference]: Without dead ends: 2474 [2022-03-20 03:03:05,362 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:03:05,363 INFO L913 BasicCegarLoop]: 397 mSDtfsCounter, 155 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:03:05,363 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 591 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-20 03:03:05,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2022-03-20 03:03:05,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 2474. [2022-03-20 03:03:05,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2474 states, 2469 states have (on average 1.4451194815714865) internal successors, (3568), 2469 states have internal predecessors, (3568), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:05,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 3572 transitions. [2022-03-20 03:03:05,434 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 3572 transitions. Word has length 235 [2022-03-20 03:03:05,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:03:05,434 INFO L478 AbstractCegarLoop]: Abstraction has 2474 states and 3572 transitions. [2022-03-20 03:03:05,435 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:05,435 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 3572 transitions. [2022-03-20 03:03:05,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-03-20 03:03:05,439 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:03:05,440 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 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] [2022-03-20 03:03:05,440 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-20 03:03:05,440 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:03:05,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:03:05,441 INFO L85 PathProgramCache]: Analyzing trace with hash -700151738, now seen corresponding path program 1 times [2022-03-20 03:03:05,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:03:05,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610331161] [2022-03-20 03:03:05,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:03:05,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:03:05,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:05,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:03:05,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:05,633 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-03-20 03:03:05,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:03:05,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610331161] [2022-03-20 03:03:05,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610331161] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:03:05,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:03:05,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:03:05,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330508839] [2022-03-20 03:03:05,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:03:05,634 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:03:05,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:03:05,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:03:05,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:03:05,635 INFO L87 Difference]: Start difference. First operand 2474 states and 3572 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:07,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:03:07,433 INFO L93 Difference]: Finished difference Result 5404 states and 7825 transitions. [2022-03-20 03:03:07,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:03:07,433 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 241 [2022-03-20 03:03:07,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:03:07,440 INFO L225 Difference]: With dead ends: 5404 [2022-03-20 03:03:07,440 INFO L226 Difference]: Without dead ends: 2958 [2022-03-20 03:03:07,444 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:03:07,445 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 164 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-20 03:03:07,445 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 386 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-20 03:03:07,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2022-03-20 03:03:07,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 2958. [2022-03-20 03:03:07,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2958 states, 2953 states have (on average 1.4466644090755165) internal successors, (4272), 2953 states have internal predecessors, (4272), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:07,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2958 states to 2958 states and 4276 transitions. [2022-03-20 03:03:07,502 INFO L78 Accepts]: Start accepts. Automaton has 2958 states and 4276 transitions. Word has length 241 [2022-03-20 03:03:07,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:03:07,502 INFO L478 AbstractCegarLoop]: Abstraction has 2958 states and 4276 transitions. [2022-03-20 03:03:07,502 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:07,502 INFO L276 IsEmpty]: Start isEmpty. Operand 2958 states and 4276 transitions. [2022-03-20 03:03:07,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-03-20 03:03:07,507 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:03:07,507 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 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] [2022-03-20 03:03:07,507 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-20 03:03:07,507 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:03:07,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:03:07,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1984034724, now seen corresponding path program 1 times [2022-03-20 03:03:07,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:03:07,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194462764] [2022-03-20 03:03:07,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:03:07,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:03:07,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:07,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:03:07,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:07,663 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-03-20 03:03:07,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:03:07,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194462764] [2022-03-20 03:03:07,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194462764] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:03:07,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:03:07,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:03:07,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261016447] [2022-03-20 03:03:07,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:03:07,665 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:03:07,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:03:07,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:03:07,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:03:07,666 INFO L87 Difference]: Start difference. First operand 2958 states and 4276 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:09,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:03:09,589 INFO L93 Difference]: Finished difference Result 6372 states and 9233 transitions. [2022-03-20 03:03:09,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:03:09,590 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 243 [2022-03-20 03:03:09,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:03:09,600 INFO L225 Difference]: With dead ends: 6372 [2022-03-20 03:03:09,600 INFO L226 Difference]: Without dead ends: 3442 [2022-03-20 03:03:09,603 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:03:09,633 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 165 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:03:09,633 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 385 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-20 03:03:09,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3442 states. [2022-03-20 03:03:09,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3442 to 3442. [2022-03-20 03:03:09,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3442 states, 3437 states have (on average 1.4480651731160896) internal successors, (4977), 3437 states have internal predecessors, (4977), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:09,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3442 states to 3442 states and 4981 transitions. [2022-03-20 03:03:09,701 INFO L78 Accepts]: Start accepts. Automaton has 3442 states and 4981 transitions. Word has length 243 [2022-03-20 03:03:09,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:03:09,702 INFO L478 AbstractCegarLoop]: Abstraction has 3442 states and 4981 transitions. [2022-03-20 03:03:09,702 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:09,702 INFO L276 IsEmpty]: Start isEmpty. Operand 3442 states and 4981 transitions. [2022-03-20 03:03:09,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-03-20 03:03:09,711 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:03:09,711 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 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] [2022-03-20 03:03:09,711 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-20 03:03:09,711 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:03:09,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:03:09,712 INFO L85 PathProgramCache]: Analyzing trace with hash -692728799, now seen corresponding path program 1 times [2022-03-20 03:03:09,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:03:09,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418404107] [2022-03-20 03:03:09,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:03:09,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:03:09,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:09,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:03:09,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:09,905 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2022-03-20 03:03:09,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:03:09,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418404107] [2022-03-20 03:03:09,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418404107] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:03:09,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:03:09,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:03:09,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295001411] [2022-03-20 03:03:09,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:03:09,906 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:03:09,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:03:09,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:03:09,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:03:09,907 INFO L87 Difference]: Start difference. First operand 3442 states and 4981 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:12,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:03:12,505 INFO L93 Difference]: Finished difference Result 7334 states and 10634 transitions. [2022-03-20 03:03:12,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:03:12,505 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 275 [2022-03-20 03:03:12,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:03:12,511 INFO L225 Difference]: With dead ends: 7334 [2022-03-20 03:03:12,518 INFO L226 Difference]: Without dead ends: 3920 [2022-03-20 03:03:12,523 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:03:12,523 INFO L913 BasicCegarLoop]: 394 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 03:03:12,523 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 588 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 03:03:12,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2022-03-20 03:03:12,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3920. [2022-03-20 03:03:12,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3920 states, 3915 states have (on average 1.4475095785440613) internal successors, (5667), 3915 states have internal predecessors, (5667), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:12,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 5671 transitions. [2022-03-20 03:03:12,613 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 5671 transitions. Word has length 275 [2022-03-20 03:03:12,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:03:12,614 INFO L478 AbstractCegarLoop]: Abstraction has 3920 states and 5671 transitions. [2022-03-20 03:03:12,614 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:12,614 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 5671 transitions. [2022-03-20 03:03:12,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-03-20 03:03:12,620 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:03:12,621 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 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] [2022-03-20 03:03:12,621 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-20 03:03:12,621 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:03:12,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:03:12,622 INFO L85 PathProgramCache]: Analyzing trace with hash -269082077, now seen corresponding path program 1 times [2022-03-20 03:03:12,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:03:12,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452424542] [2022-03-20 03:03:12,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:03:12,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:03:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:12,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:03:12,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:12,805 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-03-20 03:03:12,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:03:12,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452424542] [2022-03-20 03:03:12,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452424542] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:03:12,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:03:12,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:03:12,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534009551] [2022-03-20 03:03:12,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:03:12,807 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:03:12,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:03:12,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:03:12,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:03:12,807 INFO L87 Difference]: Start difference. First operand 3920 states and 5671 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:15,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:03:15,145 INFO L93 Difference]: Finished difference Result 8263 states and 11976 transitions. [2022-03-20 03:03:15,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:03:15,146 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 275 [2022-03-20 03:03:15,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:03:15,154 INFO L225 Difference]: With dead ends: 8263 [2022-03-20 03:03:15,155 INFO L226 Difference]: Without dead ends: 4371 [2022-03-20 03:03:15,161 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:03:15,162 INFO L913 BasicCegarLoop]: 397 mSDtfsCounter, 155 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 03:03:15,162 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 591 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 03:03:15,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4371 states. [2022-03-20 03:03:15,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4371 to 4371. [2022-03-20 03:03:15,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4371 states, 4366 states have (on average 1.4468621163536417) internal successors, (6317), 4366 states have internal predecessors, (6317), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:15,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4371 states to 4371 states and 6321 transitions. [2022-03-20 03:03:15,270 INFO L78 Accepts]: Start accepts. Automaton has 4371 states and 6321 transitions. Word has length 275 [2022-03-20 03:03:15,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:03:15,271 INFO L478 AbstractCegarLoop]: Abstraction has 4371 states and 6321 transitions. [2022-03-20 03:03:15,271 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:15,271 INFO L276 IsEmpty]: Start isEmpty. Operand 4371 states and 6321 transitions. [2022-03-20 03:03:15,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-03-20 03:03:15,278 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:03:15,279 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 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] [2022-03-20 03:03:15,279 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-20 03:03:15,279 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:03:15,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:03:15,279 INFO L85 PathProgramCache]: Analyzing trace with hash -349662537, now seen corresponding path program 1 times [2022-03-20 03:03:15,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:03:15,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474182330] [2022-03-20 03:03:15,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:03:15,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:03:15,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:15,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:03:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:15,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1161 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 727 trivial. 0 not checked. [2022-03-20 03:03:15,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:03:15,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474182330] [2022-03-20 03:03:15,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474182330] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:03:15,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:03:15,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:03:15,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168336294] [2022-03-20 03:03:15,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:03:15,485 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:03:15,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:03:15,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:03:15,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:03:15,488 INFO L87 Difference]: Start difference. First operand 4371 states and 6321 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:17,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:03:17,230 INFO L93 Difference]: Finished difference Result 9198 states and 13323 transitions. [2022-03-20 03:03:17,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:03:17,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 350 [2022-03-20 03:03:17,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:03:17,238 INFO L225 Difference]: With dead ends: 9198 [2022-03-20 03:03:17,238 INFO L226 Difference]: Without dead ends: 4855 [2022-03-20 03:03:17,244 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:03:17,245 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 156 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:03:17,245 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 382 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-20 03:03:17,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4855 states. [2022-03-20 03:03:17,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4855 to 4855. [2022-03-20 03:03:17,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4855 states, 4850 states have (on average 1.4484536082474226) internal successors, (7025), 4850 states have internal predecessors, (7025), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:17,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4855 states to 4855 states and 7029 transitions. [2022-03-20 03:03:17,357 INFO L78 Accepts]: Start accepts. Automaton has 4855 states and 7029 transitions. Word has length 350 [2022-03-20 03:03:17,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:03:17,358 INFO L478 AbstractCegarLoop]: Abstraction has 4855 states and 7029 transitions. [2022-03-20 03:03:17,358 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:17,358 INFO L276 IsEmpty]: Start isEmpty. Operand 4855 states and 7029 transitions. [2022-03-20 03:03:17,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2022-03-20 03:03:17,366 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:03:17,366 INFO L499 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] [2022-03-20 03:03:17,366 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-20 03:03:17,367 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:03:17,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:03:17,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1560972823, now seen corresponding path program 1 times [2022-03-20 03:03:17,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:03:17,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243855961] [2022-03-20 03:03:17,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:03:17,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:03:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:17,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:03:17,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:17,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1443 backedges. 501 proven. 0 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2022-03-20 03:03:17,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:03:17,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243855961] [2022-03-20 03:03:17,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243855961] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:03:17,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:03:17,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:03:17,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791082107] [2022-03-20 03:03:17,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:03:17,597 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:03:17,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:03:17,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:03:17,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:03:17,598 INFO L87 Difference]: Start difference. First operand 4855 states and 7029 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:19,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:03:19,421 INFO L93 Difference]: Finished difference Result 10166 states and 14739 transitions. [2022-03-20 03:03:19,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:03:19,422 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 391 [2022-03-20 03:03:19,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:03:19,428 INFO L225 Difference]: With dead ends: 10166 [2022-03-20 03:03:19,428 INFO L226 Difference]: Without dead ends: 5339 [2022-03-20 03:03:19,433 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:03:19,434 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:03:19,435 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 381 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-20 03:03:19,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5339 states. [2022-03-20 03:03:19,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5339 to 5339. [2022-03-20 03:03:19,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5334 states have (on average 1.4499437570303713) internal successors, (7734), 5334 states have internal predecessors, (7734), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:19,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 7738 transitions. [2022-03-20 03:03:19,495 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 7738 transitions. Word has length 391 [2022-03-20 03:03:19,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:03:19,495 INFO L478 AbstractCegarLoop]: Abstraction has 5339 states and 7738 transitions. [2022-03-20 03:03:19,495 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:19,495 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 7738 transitions. [2022-03-20 03:03:19,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2022-03-20 03:03:19,501 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:03:19,501 INFO L499 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] [2022-03-20 03:03:19,501 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-20 03:03:19,502 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:03:19,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:03:19,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1983859236, now seen corresponding path program 1 times [2022-03-20 03:03:19,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:03:19,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937197021] [2022-03-20 03:03:19,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:03:19,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:03:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:19,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:03:19,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:19,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2022-03-20 03:03:19,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:03:19,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937197021] [2022-03-20 03:03:19,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937197021] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:03:19,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:03:19,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:03:19,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098139636] [2022-03-20 03:03:19,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:03:19,654 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:03:19,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:03:19,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:03:19,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:03:19,655 INFO L87 Difference]: Start difference. First operand 5339 states and 7738 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:22,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:03:22,017 INFO L93 Difference]: Finished difference Result 11129 states and 16150 transitions. [2022-03-20 03:03:22,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:03:22,017 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 398 [2022-03-20 03:03:22,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:03:22,023 INFO L225 Difference]: With dead ends: 11129 [2022-03-20 03:03:22,023 INFO L226 Difference]: Without dead ends: 5818 [2022-03-20 03:03:22,029 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:03:22,029 INFO L913 BasicCegarLoop]: 394 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 03:03:22,029 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 588 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 03:03:22,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5818 states. [2022-03-20 03:03:22,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5818 to 5818. [2022-03-20 03:03:22,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5818 states, 5813 states have (on average 1.4493376913813865) internal successors, (8425), 5813 states have internal predecessors, (8425), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:22,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5818 states to 5818 states and 8429 transitions. [2022-03-20 03:03:22,162 INFO L78 Accepts]: Start accepts. Automaton has 5818 states and 8429 transitions. Word has length 398 [2022-03-20 03:03:22,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:03:22,163 INFO L478 AbstractCegarLoop]: Abstraction has 5818 states and 8429 transitions. [2022-03-20 03:03:22,163 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:22,163 INFO L276 IsEmpty]: Start isEmpty. Operand 5818 states and 8429 transitions. [2022-03-20 03:03:22,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2022-03-20 03:03:22,173 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:03:22,173 INFO L499 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:03:22,174 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-20 03:03:22,174 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:03:22,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:03:22,174 INFO L85 PathProgramCache]: Analyzing trace with hash -754089606, now seen corresponding path program 1 times [2022-03-20 03:03:22,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:03:22,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931388664] [2022-03-20 03:03:22,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:03:22,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:03:22,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:22,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:03:22,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:22,429 INFO L134 CoverageAnalysis]: Checked inductivity of 2119 backedges. 641 proven. 0 refuted. 0 times theorem prover too weak. 1478 trivial. 0 not checked. [2022-03-20 03:03:22,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:03:22,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931388664] [2022-03-20 03:03:22,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931388664] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:03:22,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:03:22,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 03:03:22,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143717731] [2022-03-20 03:03:22,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:03:22,430 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:03:22,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:03:22,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:03:22,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:03:22,431 INFO L87 Difference]: Start difference. First operand 5818 states and 8429 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:23,987 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 [] [2022-03-20 03:03:25,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:03:25,118 INFO L93 Difference]: Finished difference Result 12092 states and 17539 transitions. [2022-03-20 03:03:25,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:03:25,119 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 474 [2022-03-20 03:03:25,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:03:25,127 INFO L225 Difference]: With dead ends: 12092 [2022-03-20 03:03:25,127 INFO L226 Difference]: Without dead ends: 6302 [2022-03-20 03:03:25,134 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 03:03:25,135 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 156 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 03:03:25,136 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 379 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 03:03:25,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6302 states. [2022-03-20 03:03:25,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6302 to 6302. [2022-03-20 03:03:25,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6302 states, 6297 states have (on average 1.4508496109258378) internal successors, (9136), 6297 states have internal predecessors, (9136), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:25,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6302 states to 6302 states and 9140 transitions. [2022-03-20 03:03:25,307 INFO L78 Accepts]: Start accepts. Automaton has 6302 states and 9140 transitions. Word has length 474 [2022-03-20 03:03:25,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:03:25,307 INFO L478 AbstractCegarLoop]: Abstraction has 6302 states and 9140 transitions. [2022-03-20 03:03:25,307 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:25,308 INFO L276 IsEmpty]: Start isEmpty. Operand 6302 states and 9140 transitions. [2022-03-20 03:03:25,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2022-03-20 03:03:25,317 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:03:25,317 INFO L499 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] [2022-03-20 03:03:25,317 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-20 03:03:25,318 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:03:25,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:03:25,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1258926049, now seen corresponding path program 1 times [2022-03-20 03:03:25,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:03:25,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627678801] [2022-03-20 03:03:25,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:03:25,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:03:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:25,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:03:25,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:25,553 INFO L134 CoverageAnalysis]: Checked inductivity of 2512 backedges. 744 proven. 7 refuted. 0 times theorem prover too weak. 1761 trivial. 0 not checked. [2022-03-20 03:03:25,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:03:25,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627678801] [2022-03-20 03:03:25,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627678801] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 03:03:25,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358511368] [2022-03-20 03:03:25,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:03:25,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:03:25,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:03:25,555 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 03:03:25,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 03:03:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:26,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 2421 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-20 03:03:26,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 03:03:27,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2512 backedges. 707 proven. 0 refuted. 0 times theorem prover too weak. 1805 trivial. 0 not checked. [2022-03-20 03:03:27,477 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-20 03:03:27,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358511368] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:03:27,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-20 03:03:27,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-03-20 03:03:27,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3864186] [2022-03-20 03:03:27,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:03:27,478 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-20 03:03:27,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:03:27,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-20 03:03:27,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-20 03:03:27,479 INFO L87 Difference]: Start difference. First operand 6302 states and 9140 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:27,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:03:27,596 INFO L93 Difference]: Finished difference Result 6788 states and 9854 transitions. [2022-03-20 03:03:27,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-20 03:03:27,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 516 [2022-03-20 03:03:27,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:03:27,605 INFO L225 Difference]: With dead ends: 6788 [2022-03-20 03:03:27,605 INFO L226 Difference]: Without dead ends: 6786 [2022-03-20 03:03:27,607 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 525 GetRequests, 519 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-03-20 03:03:27,608 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:03:27,608 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 381 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 03:03:27,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6786 states. [2022-03-20 03:03:27,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6786 to 6786. [2022-03-20 03:03:27,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6786 states, 6781 states have (on average 1.4522931720985106) internal successors, (9848), 6781 states have internal predecessors, (9848), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:27,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6786 states to 6786 states and 9852 transitions. [2022-03-20 03:03:27,746 INFO L78 Accepts]: Start accepts. Automaton has 6786 states and 9852 transitions. Word has length 516 [2022-03-20 03:03:27,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:03:27,747 INFO L478 AbstractCegarLoop]: Abstraction has 6786 states and 9852 transitions. [2022-03-20 03:03:27,747 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:27,747 INFO L276 IsEmpty]: Start isEmpty. Operand 6786 states and 9852 transitions. [2022-03-20 03:03:27,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-03-20 03:03:27,756 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:03:27,757 INFO L499 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] [2022-03-20 03:03:27,788 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-20 03:03:27,980 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 [2022-03-20 03:03:27,981 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:03:27,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:03:27,981 INFO L85 PathProgramCache]: Analyzing trace with hash 51378056, now seen corresponding path program 1 times [2022-03-20 03:03:27,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:03:27,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239847421] [2022-03-20 03:03:27,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:03:27,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:03:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:28,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:03:28,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:28,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1409 proven. 81 refuted. 0 times theorem prover too weak. 1038 trivial. 0 not checked. [2022-03-20 03:03:28,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:03:28,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239847421] [2022-03-20 03:03:28,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239847421] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 03:03:28,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996048752] [2022-03-20 03:03:28,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:03:28,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:03:28,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:03:28,459 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 03:03:28,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-20 03:03:29,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:29,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 2457 conjuncts, 42 conjunts are in the unsatisfiable core [2022-03-20 03:03:29,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 03:03:29,754 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 03:03:29,754 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 03:03:29,845 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-20 03:03:29,845 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-20 03:03:30,093 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-20 03:03:30,160 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 03:03:30,160 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 03:03:30,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:03:30,253 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 [2022-03-20 03:03:30,310 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-20 03:03:30,318 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-20 03:03:30,386 INFO L356 Elim1Store]: treesize reduction 108, result has 34.9 percent of original size [2022-03-20 03:03:30,387 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 [2022-03-20 03:03:30,531 INFO L356 Elim1Store]: treesize reduction 88, result has 17.8 percent of original size [2022-03-20 03:03:30,533 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 [2022-03-20 03:03:30,812 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 03:03:30,812 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-03-20 03:03:30,985 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1454 proven. 212 refuted. 0 times theorem prover too weak. 862 trivial. 0 not checked. [2022-03-20 03:03:30,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 03:03:31,439 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 [2022-03-20 03:03:31,443 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 [2022-03-20 03:03:33,928 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1264 proven. 0 refuted. 0 times theorem prover too weak. 1264 trivial. 0 not checked. [2022-03-20 03:03:33,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996048752] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 03:03:33,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 03:03:33,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10, 14] total 22 [2022-03-20 03:03:33,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685064466] [2022-03-20 03:03:33,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:03:33,930 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 03:03:33,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:03:33,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 03:03:33,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2022-03-20 03:03:33,931 INFO L87 Difference]: Start difference. First operand 6786 states and 9852 transitions. Second operand has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 7 states have internal predecessors, (211), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:39,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:03:39,935 INFO L93 Difference]: Finished difference Result 20248 states and 29481 transitions. [2022-03-20 03:03:39,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 03:03:39,938 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 7 states have internal predecessors, (211), 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 524 [2022-03-20 03:03:39,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:03:39,963 INFO L225 Difference]: With dead ends: 20248 [2022-03-20 03:03:39,963 INFO L226 Difference]: Without dead ends: 13490 [2022-03-20 03:03:39,979 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1064 GetRequests, 1040 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=96, Invalid=554, Unknown=0, NotChecked=0, Total=650 [2022-03-20 03:03:39,980 INFO L913 BasicCegarLoop]: 253 mSDtfsCounter, 426 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 263 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:03:39,980 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 981 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 526 Invalid, 0 Unknown, 263 Unchecked, 1.7s Time] [2022-03-20 03:03:39,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13490 states. [2022-03-20 03:03:40,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13490 to 11540. [2022-03-20 03:03:40,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11540 states, 11535 states have (on average 1.4675335934113567) internal successors, (16928), 11535 states have internal predecessors, (16928), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:40,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11540 states to 11540 states and 16932 transitions. [2022-03-20 03:03:40,329 INFO L78 Accepts]: Start accepts. Automaton has 11540 states and 16932 transitions. Word has length 524 [2022-03-20 03:03:40,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:03:40,329 INFO L478 AbstractCegarLoop]: Abstraction has 11540 states and 16932 transitions. [2022-03-20 03:03:40,330 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 7 states have internal predecessors, (211), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:40,330 INFO L276 IsEmpty]: Start isEmpty. Operand 11540 states and 16932 transitions. [2022-03-20 03:03:40,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-03-20 03:03:40,345 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:03:40,345 INFO L499 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:03:40,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-20 03:03:40,571 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,SelfDestructingSolverStorable50 [2022-03-20 03:03:40,572 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:03:40,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:03:40,572 INFO L85 PathProgramCache]: Analyzing trace with hash 485883654, now seen corresponding path program 1 times [2022-03-20 03:03:40,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:03:40,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541712655] [2022-03-20 03:03:40,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:03:40,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:03:40,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:40,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:03:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:40,923 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1047 proven. 0 refuted. 0 times theorem prover too weak. 1481 trivial. 0 not checked. [2022-03-20 03:03:40,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:03:40,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541712655] [2022-03-20 03:03:40,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541712655] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:03:40,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:03:40,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:03:40,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054821534] [2022-03-20 03:03:40,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:03:40,924 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:03:40,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:03:40,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:03:40,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:03:40,925 INFO L87 Difference]: Start difference. First operand 11540 states and 16932 transitions. Second operand has 5 states, 5 states have (on average 42.0) internal successors, (210), 4 states have internal predecessors, (210), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:43,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:03:45,458 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:03:46,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:03:46,237 INFO L93 Difference]: Finished difference Result 25069 states and 36710 transitions. [2022-03-20 03:03:46,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:03:46,238 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.0) internal successors, (210), 4 states have internal predecessors, (210), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 524 [2022-03-20 03:03:46,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:03:46,258 INFO L225 Difference]: With dead ends: 25069 [2022-03-20 03:03:46,258 INFO L226 Difference]: Without dead ends: 13557 [2022-03-20 03:03:46,274 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:03:46,277 INFO L913 BasicCegarLoop]: 279 mSDtfsCounter, 64 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:03:46,277 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 683 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-03-20 03:03:46,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13557 states. [2022-03-20 03:03:46,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13557 to 12608. [2022-03-20 03:03:46,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12608 states, 12603 states have (on average 1.4686185828770928) internal successors, (18509), 12603 states have internal predecessors, (18509), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:46,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12608 states to 12608 states and 18513 transitions. [2022-03-20 03:03:46,602 INFO L78 Accepts]: Start accepts. Automaton has 12608 states and 18513 transitions. Word has length 524 [2022-03-20 03:03:46,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:03:46,602 INFO L478 AbstractCegarLoop]: Abstraction has 12608 states and 18513 transitions. [2022-03-20 03:03:46,602 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.0) internal successors, (210), 4 states have internal predecessors, (210), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:46,603 INFO L276 IsEmpty]: Start isEmpty. Operand 12608 states and 18513 transitions. [2022-03-20 03:03:46,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2022-03-20 03:03:46,618 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:03:46,619 INFO L499 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:03:46,619 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-20 03:03:46,619 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:03:46,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:03:46,619 INFO L85 PathProgramCache]: Analyzing trace with hash 988443970, now seen corresponding path program 1 times [2022-03-20 03:03:46,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:03:46,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645640723] [2022-03-20 03:03:46,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:03:46,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:03:46,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:46,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:03:46,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:46,882 INFO L134 CoverageAnalysis]: Checked inductivity of 2530 backedges. 1049 proven. 0 refuted. 0 times theorem prover too weak. 1481 trivial. 0 not checked. [2022-03-20 03:03:46,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:03:46,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645640723] [2022-03-20 03:03:46,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645640723] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:03:46,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:03:46,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:03:46,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293760160] [2022-03-20 03:03:46,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:03:46,883 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:03:46,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:03:46,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:03:46,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:03:46,884 INFO L87 Difference]: Start difference. First operand 12608 states and 18513 transitions. Second operand has 5 states, 5 states have (on average 42.2) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:47,956 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 [] [2022-03-20 03:03:50,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:03:50,203 INFO L93 Difference]: Finished difference Result 26123 states and 38263 transitions. [2022-03-20 03:03:50,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:03:50,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 2 states have 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 [2022-03-20 03:03:50,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:03:50,220 INFO L225 Difference]: With dead ends: 26123 [2022-03-20 03:03:50,220 INFO L226 Difference]: Without dead ends: 13543 [2022-03-20 03:03:50,233 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:03:50,234 INFO L913 BasicCegarLoop]: 278 mSDtfsCounter, 62 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-20 03:03:50,234 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 681 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-20 03:03:50,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13543 states. [2022-03-20 03:03:50,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13543 to 12622. [2022-03-20 03:03:50,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12622 states, 12617 states have (on average 1.468098597130855) internal successors, (18523), 12617 states have internal predecessors, (18523), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:50,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12622 states to 12622 states and 18527 transitions. [2022-03-20 03:03:50,537 INFO L78 Accepts]: Start accepts. Automaton has 12622 states and 18527 transitions. Word has length 525 [2022-03-20 03:03:50,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:03:50,537 INFO L478 AbstractCegarLoop]: Abstraction has 12622 states and 18527 transitions. [2022-03-20 03:03:50,538 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:50,538 INFO L276 IsEmpty]: Start isEmpty. Operand 12622 states and 18527 transitions. [2022-03-20 03:03:50,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2022-03-20 03:03:50,551 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:03:50,551 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 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, 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] [2022-03-20 03:03:50,551 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-20 03:03:50,551 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:03:50,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:03:50,552 INFO L85 PathProgramCache]: Analyzing trace with hash 925217057, now seen corresponding path program 1 times [2022-03-20 03:03:50,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:03:50,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100163157] [2022-03-20 03:03:50,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:03:50,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:03:50,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:50,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:03:50,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:50,784 INFO L134 CoverageAnalysis]: Checked inductivity of 2782 backedges. 1231 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-03-20 03:03:50,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:03:50,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100163157] [2022-03-20 03:03:50,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100163157] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:03:50,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:03:50,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:03:50,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321335109] [2022-03-20 03:03:50,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:03:50,786 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:03:50,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:03:50,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:03:50,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:03:50,786 INFO L87 Difference]: Start difference. First operand 12622 states and 18527 transitions. Second operand has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:52,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:03:54,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:03:54,313 INFO L93 Difference]: Finished difference Result 26029 states and 38112 transitions. [2022-03-20 03:03:54,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:03:54,314 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 546 [2022-03-20 03:03:54,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:03:54,335 INFO L225 Difference]: With dead ends: 26029 [2022-03-20 03:03:54,335 INFO L226 Difference]: Without dead ends: 13435 [2022-03-20 03:03:54,353 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:03:54,353 INFO L913 BasicCegarLoop]: 274 mSDtfsCounter, 77 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 03:03:54,353 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 673 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 03:03:54,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13435 states. [2022-03-20 03:03:54,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13435 to 12622. [2022-03-20 03:03:54,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12622 states, 12617 states have (on average 1.4659586272489498) internal successors, (18496), 12617 states have internal predecessors, (18496), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:54,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12622 states to 12622 states and 18500 transitions. [2022-03-20 03:03:54,675 INFO L78 Accepts]: Start accepts. Automaton has 12622 states and 18500 transitions. Word has length 546 [2022-03-20 03:03:54,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:03:54,675 INFO L478 AbstractCegarLoop]: Abstraction has 12622 states and 18500 transitions. [2022-03-20 03:03:54,675 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:54,675 INFO L276 IsEmpty]: Start isEmpty. Operand 12622 states and 18500 transitions. [2022-03-20 03:03:54,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2022-03-20 03:03:54,690 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:03:54,691 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:03:54,691 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-20 03:03:54,691 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:03:54,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:03:54,691 INFO L85 PathProgramCache]: Analyzing trace with hash 2069068237, now seen corresponding path program 1 times [2022-03-20 03:03:54,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:03:54,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204164307] [2022-03-20 03:03:54,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:03:54,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:03:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:54,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:03:54,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:54,973 INFO L134 CoverageAnalysis]: Checked inductivity of 2851 backedges. 1131 proven. 34 refuted. 0 times theorem prover too weak. 1686 trivial. 0 not checked. [2022-03-20 03:03:54,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:03:54,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204164307] [2022-03-20 03:03:54,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204164307] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 03:03:54,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398488726] [2022-03-20 03:03:54,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:03:54,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:03:54,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:03:54,975 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 03:03:55,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-20 03:03:56,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:56,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 2555 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-20 03:03:56,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 03:03:57,020 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-20 03:03:57,041 INFO L356 Elim1Store]: treesize reduction 30, result has 38.8 percent of original size [2022-03-20 03:03:57,041 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 [2022-03-20 03:03:57,049 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 [2022-03-20 03:03:57,057 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 [2022-03-20 03:03:57,256 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-03-20 03:03:57,264 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2022-03-20 03:03:57,266 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 [2022-03-20 03:03:57,325 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 03:03:57,398 INFO L134 CoverageAnalysis]: Checked inductivity of 2851 backedges. 1115 proven. 0 refuted. 0 times theorem prover too weak. 1736 trivial. 0 not checked. [2022-03-20 03:03:57,399 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-20 03:03:57,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398488726] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:03:57,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-20 03:03:57,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2022-03-20 03:03:57,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443013926] [2022-03-20 03:03:57,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:03:57,399 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:03:57,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:03:57,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:03:57,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-20 03:03:57,400 INFO L87 Difference]: Start difference. First operand 12622 states and 18500 transitions. Second operand has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:58,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:03:58,913 INFO L93 Difference]: Finished difference Result 25916 states and 37954 transitions. [2022-03-20 03:03:58,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:03:58,914 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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 549 [2022-03-20 03:03:58,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:03:58,929 INFO L225 Difference]: With dead ends: 25916 [2022-03-20 03:03:58,929 INFO L226 Difference]: Without dead ends: 13322 [2022-03-20 03:03:58,940 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 559 GetRequests, 550 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-03-20 03:03:58,941 INFO L913 BasicCegarLoop]: 282 mSDtfsCounter, 65 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-20 03:03:58,941 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 687 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-20 03:03:58,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13322 states. [2022-03-20 03:03:59,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13322 to 12776. [2022-03-20 03:03:59,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12776 states, 12771 states have (on average 1.4669172343590948) internal successors, (18734), 12771 states have internal predecessors, (18734), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:59,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12776 states to 12776 states and 18738 transitions. [2022-03-20 03:03:59,235 INFO L78 Accepts]: Start accepts. Automaton has 12776 states and 18738 transitions. Word has length 549 [2022-03-20 03:03:59,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:03:59,236 INFO L478 AbstractCegarLoop]: Abstraction has 12776 states and 18738 transitions. [2022-03-20 03:03:59,236 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:03:59,236 INFO L276 IsEmpty]: Start isEmpty. Operand 12776 states and 18738 transitions. [2022-03-20 03:03:59,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2022-03-20 03:03:59,250 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:03:59,250 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:03:59,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-20 03:03:59,454 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:03:59,455 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:03:59,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:03:59,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1472441509, now seen corresponding path program 1 times [2022-03-20 03:03:59,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:03:59,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076126783] [2022-03-20 03:03:59,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:03:59,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:03:59,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:59,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:03:59,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:03:59,702 INFO L134 CoverageAnalysis]: Checked inductivity of 2853 backedges. 1096 proven. 0 refuted. 0 times theorem prover too weak. 1757 trivial. 0 not checked. [2022-03-20 03:03:59,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:03:59,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076126783] [2022-03-20 03:03:59,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076126783] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:03:59,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:03:59,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:03:59,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99053541] [2022-03-20 03:03:59,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:03:59,704 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:03:59,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:03:59,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:03:59,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:03:59,704 INFO L87 Difference]: Start difference. First operand 12776 states and 18738 transitions. Second operand has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:01,601 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:03,997 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:05,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:05,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:05,702 INFO L93 Difference]: Finished difference Result 25637 states and 37587 transitions. [2022-03-20 03:04:05,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:04:05,703 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 550 [2022-03-20 03:04:05,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:05,721 INFO L225 Difference]: With dead ends: 25637 [2022-03-20 03:04:05,721 INFO L226 Difference]: Without dead ends: 12889 [2022-03-20 03:04:05,736 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:04:05,737 INFO L913 BasicCegarLoop]: 251 mSDtfsCounter, 35 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:05,737 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 628 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-03-20 03:04:05,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12889 states. [2022-03-20 03:04:05,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12889 to 12622. [2022-03-20 03:04:05,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12622 states, 12617 states have (on average 1.46484901323611) internal successors, (18482), 12617 states have internal predecessors, (18482), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:05,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12622 states to 12622 states and 18486 transitions. [2022-03-20 03:04:05,976 INFO L78 Accepts]: Start accepts. Automaton has 12622 states and 18486 transitions. Word has length 550 [2022-03-20 03:04:05,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:05,977 INFO L478 AbstractCegarLoop]: Abstraction has 12622 states and 18486 transitions. [2022-03-20 03:04:05,977 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:05,977 INFO L276 IsEmpty]: Start isEmpty. Operand 12622 states and 18486 transitions. [2022-03-20 03:04:05,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2022-03-20 03:04:05,993 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:05,993 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:05,994 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-20 03:04:05,994 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:05,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:05,994 INFO L85 PathProgramCache]: Analyzing trace with hash -833272500, now seen corresponding path program 1 times [2022-03-20 03:04:05,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:05,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813982256] [2022-03-20 03:04:05,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:05,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:06,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:06,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:06,306 INFO L134 CoverageAnalysis]: Checked inductivity of 2879 backedges. 1134 proven. 28 refuted. 0 times theorem prover too weak. 1717 trivial. 0 not checked. [2022-03-20 03:04:06,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:06,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813982256] [2022-03-20 03:04:06,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813982256] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 03:04:06,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548493903] [2022-03-20 03:04:06,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:06,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:04:06,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:04:06,308 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 03:04:06,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-20 03:04:07,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:07,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 2573 conjuncts, 23 conjunts are in the unsatisfiable core [2022-03-20 03:04:07,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 03:04:07,563 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 03:04:07,563 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 03:04:07,605 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 03:04:07,605 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 03:04:07,940 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-20 03:04:08,056 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2022-03-20 03:04:08,077 INFO L356 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2022-03-20 03:04:08,077 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 [2022-03-20 03:04:08,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:08,089 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 [2022-03-20 03:04:08,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:08,104 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 [2022-03-20 03:04:08,197 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-03-20 03:04:08,208 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2022-03-20 03:04:08,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:08,212 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 [2022-03-20 03:04:08,283 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 03:04:08,380 INFO L134 CoverageAnalysis]: Checked inductivity of 2879 backedges. 1129 proven. 220 refuted. 0 times theorem prover too weak. 1530 trivial. 0 not checked. [2022-03-20 03:04:08,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 03:04:09,070 INFO L134 CoverageAnalysis]: Checked inductivity of 2879 backedges. 1124 proven. 0 refuted. 0 times theorem prover too weak. 1755 trivial. 0 not checked. [2022-03-20 03:04:09,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [548493903] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 03:04:09,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 03:04:09,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 11 [2022-03-20 03:04:09,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034238210] [2022-03-20 03:04:09,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:09,071 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 03:04:09,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:09,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 03:04:09,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-20 03:04:09,072 INFO L87 Difference]: Start difference. First operand 12622 states and 18486 transitions. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:10,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:10,319 INFO L93 Difference]: Finished difference Result 26942 states and 39333 transitions. [2022-03-20 03:04:10,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 03:04:10,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 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 552 [2022-03-20 03:04:10,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:10,338 INFO L225 Difference]: With dead ends: 26942 [2022-03-20 03:04:10,338 INFO L226 Difference]: Without dead ends: 14348 [2022-03-20 03:04:10,352 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1114 GetRequests, 1104 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-03-20 03:04:10,352 INFO L913 BasicCegarLoop]: 222 mSDtfsCounter, 116 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:10,353 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 561 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-20 03:04:10,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14348 states. [2022-03-20 03:04:10,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14348 to 12636. [2022-03-20 03:04:10,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12636 states, 12631 states have (on average 1.4643337819650066) internal successors, (18496), 12631 states have internal predecessors, (18496), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:10,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12636 states to 12636 states and 18500 transitions. [2022-03-20 03:04:10,697 INFO L78 Accepts]: Start accepts. Automaton has 12636 states and 18500 transitions. Word has length 552 [2022-03-20 03:04:10,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:10,698 INFO L478 AbstractCegarLoop]: Abstraction has 12636 states and 18500 transitions. [2022-03-20 03:04:10,699 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:10,699 INFO L276 IsEmpty]: Start isEmpty. Operand 12636 states and 18500 transitions. [2022-03-20 03:04:10,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-03-20 03:04:10,718 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:10,718 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 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, 1, 1] [2022-03-20 03:04:10,746 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-20 03:04:10,922 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:04:10,923 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:10,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:10,923 INFO L85 PathProgramCache]: Analyzing trace with hash 704282287, now seen corresponding path program 1 times [2022-03-20 03:04:10,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:10,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540970294] [2022-03-20 03:04:10,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:10,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:11,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:11,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:11,242 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1718 proven. 129 refuted. 0 times theorem prover too weak. 1042 trivial. 0 not checked. [2022-03-20 03:04:11,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:11,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540970294] [2022-03-20 03:04:11,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540970294] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 03:04:11,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157425437] [2022-03-20 03:04:11,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:11,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:04:11,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:04:11,244 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 03:04:11,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-20 03:04:12,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:12,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 2549 conjuncts, 29 conjunts are in the unsatisfiable core [2022-03-20 03:04:12,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 03:04:12,805 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 03:04:12,805 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 03:04:13,089 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 03:04:13,089 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 03:04:13,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:13,176 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 [2022-03-20 03:04:13,192 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-20 03:04:13,194 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 19 treesize of output 13 [2022-03-20 03:04:13,225 INFO L356 Elim1Store]: treesize reduction 60, result has 39.4 percent of original size [2022-03-20 03:04:13,225 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 55 [2022-03-20 03:04:13,342 INFO L356 Elim1Store]: treesize reduction 80, result has 35.0 percent of original size [2022-03-20 03:04:13,343 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 52 treesize of output 72 [2022-03-20 03:04:13,423 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 03:04:13,423 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 [2022-03-20 03:04:13,502 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-20 03:04:13,642 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1785 proven. 72 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2022-03-20 03:04:13,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 03:04:13,896 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-03-20 03:04:13,898 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-03-20 03:04:16,223 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1598 proven. 0 refuted. 0 times theorem prover too weak. 1291 trivial. 0 not checked. [2022-03-20 03:04:16,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157425437] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 03:04:16,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 03:04:16,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 9] total 14 [2022-03-20 03:04:16,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420261469] [2022-03-20 03:04:16,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:16,224 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:04:16,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:16,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:04:16,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-03-20 03:04:16,225 INFO L87 Difference]: Start difference. First operand 12636 states and 18500 transitions. Second operand has 5 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:17,857 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:18,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:18,515 INFO L93 Difference]: Finished difference Result 31395 states and 45943 transitions. [2022-03-20 03:04:18,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:04:18,516 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 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 553 [2022-03-20 03:04:18,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:18,540 INFO L225 Difference]: With dead ends: 31395 [2022-03-20 03:04:18,541 INFO L226 Difference]: Without dead ends: 18787 [2022-03-20 03:04:18,553 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1118 GetRequests, 1105 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2022-03-20 03:04:18,554 INFO L913 BasicCegarLoop]: 330 mSDtfsCounter, 160 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 108 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:18,554 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 909 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 285 Invalid, 0 Unknown, 108 Unchecked, 1.9s Time] [2022-03-20 03:04:18,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18787 states. [2022-03-20 03:04:18,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18787 to 12949. [2022-03-20 03:04:18,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12949 states, 12944 states have (on average 1.4624536464771323) internal successors, (18930), 12944 states have internal predecessors, (18930), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:18,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12949 states to 12949 states and 18934 transitions. [2022-03-20 03:04:18,868 INFO L78 Accepts]: Start accepts. Automaton has 12949 states and 18934 transitions. Word has length 553 [2022-03-20 03:04:18,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:18,868 INFO L478 AbstractCegarLoop]: Abstraction has 12949 states and 18934 transitions. [2022-03-20 03:04:18,868 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:18,868 INFO L276 IsEmpty]: Start isEmpty. Operand 12949 states and 18934 transitions. [2022-03-20 03:04:18,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-03-20 03:04:18,882 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:18,882 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:18,909 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-20 03:04:19,088 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2022-03-20 03:04:19,089 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:19,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:19,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1250691140, now seen corresponding path program 1 times [2022-03-20 03:04:19,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:19,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516159953] [2022-03-20 03:04:19,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:19,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:19,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:19,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:19,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:19,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 1109 proven. 0 refuted. 0 times theorem prover too weak. 1772 trivial. 0 not checked. [2022-03-20 03:04:19,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:19,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516159953] [2022-03-20 03:04:19,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516159953] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 03:04:19,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 03:04:19,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 03:04:19,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193388848] [2022-03-20 03:04:19,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 03:04:19,519 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 03:04:19,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:19,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 03:04:19,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 03:04:19,520 INFO L87 Difference]: Start difference. First operand 12949 states and 18934 transitions. Second operand has 5 states, 5 states have (on average 40.8) internal successors, (204), 4 states have internal predecessors, (204), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:21,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:23,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:04:23,504 INFO L93 Difference]: Finished difference Result 27352 states and 39979 transitions. [2022-03-20 03:04:23,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 03:04:23,506 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.8) internal successors, (204), 4 states have internal predecessors, (204), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 553 [2022-03-20 03:04:23,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:04:23,526 INFO L225 Difference]: With dead ends: 27352 [2022-03-20 03:04:23,526 INFO L226 Difference]: Without dead ends: 14431 [2022-03-20 03:04:23,544 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 03:04:23,546 INFO L913 BasicCegarLoop]: 252 mSDtfsCounter, 37 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:04:23,546 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 629 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-20 03:04:23,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14431 states. [2022-03-20 03:04:24,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14431 to 13813. [2022-03-20 03:04:24,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13813 states, 13808 states have (on average 1.4608198146002318) internal successors, (20171), 13808 states have internal predecessors, (20171), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:24,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13813 states to 13813 states and 20175 transitions. [2022-03-20 03:04:24,064 INFO L78 Accepts]: Start accepts. Automaton has 13813 states and 20175 transitions. Word has length 553 [2022-03-20 03:04:24,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:04:24,064 INFO L478 AbstractCegarLoop]: Abstraction has 13813 states and 20175 transitions. [2022-03-20 03:04:24,064 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.8) internal successors, (204), 4 states have internal predecessors, (204), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:04:24,064 INFO L276 IsEmpty]: Start isEmpty. Operand 13813 states and 20175 transitions. [2022-03-20 03:04:24,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-03-20 03:04:24,081 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:04:24,081 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:04:24,081 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-20 03:04:24,081 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:04:24,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:04:24,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1291020435, now seen corresponding path program 1 times [2022-03-20 03:04:24,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:04:24,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193531425] [2022-03-20 03:04:24,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:24,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:04:24,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:25,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:04:25,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:25,730 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1285 proven. 225 refuted. 0 times theorem prover too weak. 1379 trivial. 0 not checked. [2022-03-20 03:04:25,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:04:25,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193531425] [2022-03-20 03:04:25,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193531425] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 03:04:25,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391270462] [2022-03-20 03:04:25,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:04:25,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:04:25,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:04:25,745 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 03:04:25,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-20 03:04:27,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:04:27,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 2550 conjuncts, 90 conjunts are in the unsatisfiable core [2022-03-20 03:04:27,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 03:04:27,303 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 03:04:27,304 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 03:04:27,417 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-20 03:04:27,417 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-20 03:04:27,653 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-20 03:04:27,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:27,798 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-03-20 03:04:27,829 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-03-20 03:04:27,829 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-03-20 03:04:27,838 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 03:04:27,838 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 72 [2022-03-20 03:04:28,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:28,484 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-03-20 03:04:28,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:28,505 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-03-20 03:04:28,505 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-03-20 03:04:28,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:28,509 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 [2022-03-20 03:04:28,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:28,585 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-20 03:04:28,586 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-03-20 03:04:28,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:28,590 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-03-20 03:04:28,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:28,593 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-03-20 03:04:29,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:29,105 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-20 03:04:29,106 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-03-20 03:04:29,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:29,133 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-20 03:04:29,133 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-03-20 03:04:29,164 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-03-20 03:04:29,164 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-03-20 03:04:29,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:29,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:29,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:29,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:29,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:29,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:29,973 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 [2022-03-20 03:04:29,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:29,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:29,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:29,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:29,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:29,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:29,983 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 [2022-03-20 03:04:30,038 INFO L356 Elim1Store]: treesize reduction 231, result has 26.4 percent of original size [2022-03-20 03:04:30,038 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 [2022-03-20 03:04:34,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:34,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:34,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:34,697 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2022-03-20 03:04:34,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:34,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:34,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:34,707 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2022-03-20 03:04:34,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:34,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:34,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:34,739 INFO L356 Elim1Store]: treesize reduction 105, result has 29.1 percent of original size [2022-03-20 03:04:34,740 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 [2022-03-20 03:04:35,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:35,030 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 [2022-03-20 03:04:35,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:35,035 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 [2022-03-20 03:04:35,095 INFO L356 Elim1Store]: treesize reduction 151, result has 29.4 percent of original size [2022-03-20 03:04:35,095 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 [2022-03-20 03:04:35,234 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-20 03:04:35,234 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-03-20 03:04:35,385 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 03:04:35,386 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-03-20 03:04:35,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1210 proven. 480 refuted. 0 times theorem prover too weak. 1199 trivial. 0 not checked. [2022-03-20 03:04:35,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 03:04:38,482 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:04:38,485 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:04:38,485 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 262 treesize of output 202 [2022-03-20 03:04:38,490 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:04:38,491 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:04:38,492 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 154 [2022-03-20 03:04:41,478 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:04:41,479 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:04:41,479 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:04:41,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:04:41,482 INFO L356 Elim1Store]: treesize reduction 3, result has 25.0 percent of original size [2022-03-20 03:04:41,482 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 1 [2022-03-20 03:04:41,838 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1341 proven. 141 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2022-03-20 03:04:41,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391270462] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 03:04:41,839 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 03:04:41,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 20, 13] total 41 [2022-03-20 03:04:41,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283119880] [2022-03-20 03:04:41,839 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 03:04:41,840 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-03-20 03:04:41,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:04:41,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-03-20 03:04:41,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=1384, Unknown=0, NotChecked=0, Total=1640 [2022-03-20 03:04:41,841 INFO L87 Difference]: Start difference. First operand 13813 states and 20175 transitions. Second operand has 41 states, 41 states have (on average 13.658536585365853) internal successors, (560), 40 states have internal predecessors, (560), 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) [2022-03-20 03:04:46,336 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:49,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:50,630 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:04:53,090 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:04,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:05:04,539 INFO L93 Difference]: Finished difference Result 65464 states and 95226 transitions. [2022-03-20 03:05:04,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-20 03:05:04,540 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 13.658536585365853) internal successors, (560), 40 states have internal predecessors, (560), 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 553 [2022-03-20 03:05:04,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:05:04,601 INFO L225 Difference]: With dead ends: 65464 [2022-03-20 03:05:04,601 INFO L226 Difference]: Without dead ends: 51679 [2022-03-20 03:05:04,615 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1240 GetRequests, 1129 SyntacticMatches, 9 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3650 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=1327, Invalid=9385, Unknown=0, NotChecked=0, Total=10712 [2022-03-20 03:05:04,616 INFO L913 BasicCegarLoop]: 502 mSDtfsCounter, 2529 mSDsluCounter, 7335 mSDsCounter, 0 mSdLazyCounter, 6959 mSolverCounterSat, 343 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2529 SdHoareTripleChecker+Valid, 7837 SdHoareTripleChecker+Invalid, 10581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 343 IncrementalHoareTripleChecker+Valid, 6959 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 3277 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2022-03-20 03:05:04,616 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [2529 Valid, 7837 Invalid, 10581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [343 Valid, 6959 Invalid, 2 Unknown, 3277 Unchecked, 17.9s Time] [2022-03-20 03:05:04,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51679 states. [2022-03-20 03:05:05,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51679 to 26444. [2022-03-20 03:05:05,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26444 states, 26439 states have (on average 1.47982147585007) internal successors, (39125), 26439 states have internal predecessors, (39125), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:05,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26444 states to 26444 states and 39129 transitions. [2022-03-20 03:05:05,594 INFO L78 Accepts]: Start accepts. Automaton has 26444 states and 39129 transitions. Word has length 553 [2022-03-20 03:05:05,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:05:05,594 INFO L478 AbstractCegarLoop]: Abstraction has 26444 states and 39129 transitions. [2022-03-20 03:05:05,594 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 13.658536585365853) internal successors, (560), 40 states have internal predecessors, (560), 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) [2022-03-20 03:05:05,594 INFO L276 IsEmpty]: Start isEmpty. Operand 26444 states and 39129 transitions. [2022-03-20 03:05:05,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2022-03-20 03:05:05,626 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:05:05,627 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 03:05:05,665 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-20 03:05:05,830 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2022-03-20 03:05:05,830 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:05:05,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:05:05,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1823012520, now seen corresponding path program 1 times [2022-03-20 03:05:05,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:05:05,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999524182] [2022-03-20 03:05:05,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:05,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:05:06,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:07,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:05:07,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:07,670 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1154 proven. 1411 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-03-20 03:05:07,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:05:07,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999524182] [2022-03-20 03:05:07,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999524182] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 03:05:07,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989216055] [2022-03-20 03:05:07,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:05:07,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:05:07,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:05:07,671 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 03:05:07,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-20 03:05:09,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:05:09,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 2577 conjuncts, 93 conjunts are in the unsatisfiable core [2022-03-20 03:05:09,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 03:05:09,378 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 03:05:09,379 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 03:05:09,508 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-20 03:05:09,509 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-20 03:05:09,844 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 03:05:09,844 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-20 03:05:09,857 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 03:05:09,858 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-20 03:05:09,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:09,899 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-03-20 03:05:09,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:09,931 INFO L356 Elim1Store]: treesize reduction 100, result has 32.4 percent of original size [2022-03-20 03:05:09,932 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 50 treesize of output 72 [2022-03-20 03:05:09,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:09,937 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 [2022-03-20 03:05:10,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:10,535 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-03-20 03:05:10,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:10,540 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-03-20 03:05:10,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:10,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:10,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:10,563 INFO L356 Elim1Store]: treesize reduction 155, result has 11.9 percent of original size [2022-03-20 03:05:10,563 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 68 treesize of output 61 [2022-03-20 03:05:10,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:10,620 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 [2022-03-20 03:05:10,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:10,625 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 [2022-03-20 03:05:10,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:10,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:10,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:10,649 INFO L356 Elim1Store]: treesize reduction 105, result has 29.1 percent of original size [2022-03-20 03:05:10,649 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 53 treesize of output 80 [2022-03-20 03:05:11,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:11,527 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-20 03:05:11,527 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-03-20 03:05:11,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:11,567 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-20 03:05:11,567 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-03-20 03:05:11,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:11,620 INFO L356 Elim1Store]: treesize reduction 70, result has 53.3 percent of original size [2022-03-20 03:05:11,620 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 5 case distinctions, treesize of input 49 treesize of output 106 [2022-03-20 03:05:13,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:13,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:13,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:13,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:13,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:13,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:13,023 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 452 treesize of output 350 [2022-03-20 03:05:13,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:13,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:13,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:13,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:13,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:13,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:13,090 INFO L356 Elim1Store]: treesize reduction 176, result has 26.7 percent of original size [2022-03-20 03:05:13,090 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 452 treesize of output 462 [2022-03-20 03:05:13,124 INFO L356 Elim1Store]: treesize reduction 154, result has 15.4 percent of original size [2022-03-20 03:05:13,124 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 480 treesize of output 396 [2022-03-20 03:05:21,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:21,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:21,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:21,442 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 447 treesize of output 365 [2022-03-20 03:05:21,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:21,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:21,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:21,475 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 447 treesize of output 341 [2022-03-20 03:05:21,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:21,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:21,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:21,508 INFO L356 Elim1Store]: treesize reduction 105, result has 29.1 percent of original size [2022-03-20 03:05:21,509 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 447 treesize of output 432 [2022-03-20 03:05:21,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:21,984 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 192 treesize of output 144 [2022-03-20 03:05:21,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:21,988 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 144 treesize of output 96 [2022-03-20 03:05:22,024 INFO L356 Elim1Store]: treesize reduction 175, result has 18.2 percent of original size [2022-03-20 03:05:22,024 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 115 treesize of output 113 [2022-03-20 03:05:22,108 INFO L356 Elim1Store]: treesize reduction 114, result has 19.7 percent of original size [2022-03-20 03:05:22,108 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 47 [2022-03-20 03:05:22,354 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-20 03:05:22,354 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 38 treesize of output 14 [2022-03-20 03:05:22,393 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1215 proven. 448 refuted. 0 times theorem prover too weak. 1226 trivial. 0 not checked. [2022-03-20 03:05:22,394 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 03:05:25,276 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:05:25,283 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:05:25,283 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 262 treesize of output 202 [2022-03-20 03:05:25,293 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:05:25,294 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:05:25,295 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 154 [2022-03-20 03:05:43,917 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:05:43,918 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:05:43,919 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 73 treesize of output 65 [2022-03-20 03:05:43,922 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:05:43,924 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:05:43,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:05:43,925 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-03-20 03:05:44,262 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1341 proven. 141 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2022-03-20 03:05:44,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [989216055] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 03:05:44,262 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 03:05:44,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 19, 14] total 49 [2022-03-20 03:05:44,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679828675] [2022-03-20 03:05:44,262 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 03:05:44,264 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-03-20 03:05:44,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:05:44,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-03-20 03:05:44,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=291, Invalid=2055, Unknown=6, NotChecked=0, Total=2352 [2022-03-20 03:05:44,264 INFO L87 Difference]: Start difference. First operand 26444 states and 39129 transitions. Second operand has 49 states, 49 states have (on average 14.755102040816327) internal successors, (723), 48 states have internal predecessors, (723), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:05:46,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:48,551 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:50,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:51,936 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:05:54,402 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:06:33,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:06:33,000 INFO L93 Difference]: Finished difference Result 206242 states and 300913 transitions. [2022-03-20 03:06:33,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 260 states. [2022-03-20 03:06:33,001 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 14.755102040816327) internal successors, (723), 48 states have internal predecessors, (723), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 554 [2022-03-20 03:06:33,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:06:33,471 INFO L225 Difference]: With dead ends: 206242 [2022-03-20 03:06:33,472 INFO L226 Difference]: Without dead ends: 179826 [2022-03-20 03:06:33,529 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1576 GetRequests, 1239 SyntacticMatches, 64 SemanticMatches, 273 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37125 ImplicationChecksByTransitivity, 41.2s TimeCoverageRelationStatistics Valid=8609, Invalid=66735, Unknown=6, NotChecked=0, Total=75350 [2022-03-20 03:06:33,529 INFO L913 BasicCegarLoop]: 878 mSDtfsCounter, 3797 mSDsluCounter, 16050 mSDsCounter, 0 mSdLazyCounter, 6770 mSolverCounterSat, 626 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3797 SdHoareTripleChecker+Valid, 16928 SdHoareTripleChecker+Invalid, 10339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 626 IncrementalHoareTripleChecker+Valid, 6770 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 2942 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2022-03-20 03:06:33,530 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3797 Valid, 16928 Invalid, 10339 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [626 Valid, 6770 Invalid, 1 Unknown, 2942 Unchecked, 19.0s Time] [2022-03-20 03:06:33,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179826 states. [2022-03-20 03:06:38,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179826 to 98220. [2022-03-20 03:06:38,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98220 states, 98215 states have (on average 1.4932444127679072) internal successors, (146659), 98215 states have internal predecessors, (146659), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:38,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98220 states to 98220 states and 146663 transitions. [2022-03-20 03:06:38,495 INFO L78 Accepts]: Start accepts. Automaton has 98220 states and 146663 transitions. Word has length 554 [2022-03-20 03:06:38,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 03:06:38,496 INFO L478 AbstractCegarLoop]: Abstraction has 98220 states and 146663 transitions. [2022-03-20 03:06:38,496 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 14.755102040816327) internal successors, (723), 48 states have internal predecessors, (723), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 03:06:38,496 INFO L276 IsEmpty]: Start isEmpty. Operand 98220 states and 146663 transitions. [2022-03-20 03:06:38,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2022-03-20 03:06:38,641 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 03:06:38,642 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 10, 9, 9, 8, 8, 7, 7, 5, 4, 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, 1, 1, 1, 1] [2022-03-20 03:06:38,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-20 03:06:38,867 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:06:38,867 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 03:06:38,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 03:06:38,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1733346817, now seen corresponding path program 1 times [2022-03-20 03:06:38,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 03:06:38,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918345478] [2022-03-20 03:06:38,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:38,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 03:06:39,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:41,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 03:06:41,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:41,775 INFO L134 CoverageAnalysis]: Checked inductivity of 2893 backedges. 1152 proven. 1414 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-03-20 03:06:41,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 03:06:41,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918345478] [2022-03-20 03:06:41,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918345478] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 03:06:41,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35368671] [2022-03-20 03:06:41,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 03:06:41,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 03:06:41,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 03:06:41,780 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 03:06:41,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-20 03:06:43,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 03:06:43,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 2553 conjuncts, 93 conjunts are in the unsatisfiable core [2022-03-20 03:06:43,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 03:06:43,424 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 03:06:43,425 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 03:06:43,540 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-20 03:06:43,540 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-20 03:06:43,845 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-20 03:06:43,979 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-20 03:06:44,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:44,049 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-03-20 03:06:44,074 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-03-20 03:06:44,075 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-03-20 03:06:44,082 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 03:06:44,082 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 72 [2022-03-20 03:06:44,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:44,652 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-03-20 03:06:44,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:44,656 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-03-20 03:06:44,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:44,674 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-03-20 03:06:44,674 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-03-20 03:06:44,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:44,733 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-03-20 03:06:44,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:44,762 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-20 03:06:44,762 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-03-20 03:06:44,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:44,768 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 80 treesize of output 67 [2022-03-20 03:06:45,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:45,455 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-20 03:06:45,455 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-03-20 03:06:45,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:45,487 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-20 03:06:45,487 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-03-20 03:06:45,528 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-03-20 03:06:45,529 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-03-20 03:06:46,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:46,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:46,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:46,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:46,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:46,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:46,768 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 356 treesize of output 278 [2022-03-20 03:06:46,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:46,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:46,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:46,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:46,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:46,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:46,775 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 356 treesize of output 296 [2022-03-20 03:06:46,819 INFO L356 Elim1Store]: treesize reduction 231, result has 26.4 percent of original size [2022-03-20 03:06:46,820 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 356 treesize of output 369 [2022-03-20 03:06:52,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:52,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:52,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:52,157 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 351 treesize of output 287 [2022-03-20 03:06:52,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:52,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:52,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:52,162 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 351 treesize of output 269 [2022-03-20 03:06:52,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:52,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:52,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:52,183 INFO L356 Elim1Store]: treesize reduction 105, result has 29.1 percent of original size [2022-03-20 03:06:52,183 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 360 treesize of output 351 [2022-03-20 03:06:52,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:52,400 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 148 [2022-03-20 03:06:52,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:06:52,404 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 148 treesize of output 88 [2022-03-20 03:06:52,444 INFO L356 Elim1Store]: treesize reduction 151, result has 29.4 percent of original size [2022-03-20 03:06:52,444 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 116 treesize of output 144 [2022-03-20 03:06:52,535 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-20 03:06:52,535 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-03-20 03:06:52,625 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 03:06:52,625 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-03-20 03:06:52,654 INFO L134 CoverageAnalysis]: Checked inductivity of 2893 backedges. 1212 proven. 482 refuted. 0 times theorem prover too weak. 1199 trivial. 0 not checked. [2022-03-20 03:06:52,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 03:06:57,284 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:06:57,290 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:06:57,291 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 [2022-03-20 03:06:57,295 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:06:57,297 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-20 03:06:57,298 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 [2022-03-20 03:06:58,027 INFO L134 CoverageAnalysis]: Checked inductivity of 2893 backedges. 1309 proven. 177 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2022-03-20 03:06:58,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35368671] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 03:06:58,028 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 03:06:58,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 20, 13] total 49 [2022-03-20 03:06:58,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415422382] [2022-03-20 03:06:58,028 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 03:06:58,030 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-03-20 03:06:58,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 03:06:58,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-03-20 03:06:58,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=2092, Unknown=0, NotChecked=0, Total=2352 [2022-03-20 03:06:58,031 INFO L87 Difference]: Start difference. First operand 98220 states and 146663 transitions. Second operand has 49 states, 49 states have (on average 15.816326530612244) internal successors, (775), 48 states have internal predecessors, (775), 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) [2022-03-20 03:07:00,057 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 03:09:33,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 03:09:33,947 INFO L93 Difference]: Finished difference Result 1020571 states and 1502882 transitions. [2022-03-20 03:09:33,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 472 states. [2022-03-20 03:09:33,947 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 15.816326530612244) internal successors, (775), 48 states have internal predecessors, (775), 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 554 [2022-03-20 03:09:33,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 03:09:36,337 INFO L225 Difference]: With dead ends: 1020571 [2022-03-20 03:09:36,337 INFO L226 Difference]: Without dead ends: 922111 [2022-03-20 03:09:36,733 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1959 GetRequests, 1379 SyntacticMatches, 83 SemanticMatches, 497 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123349 ImplicationChecksByTransitivity, 53.2s TimeCoverageRelationStatistics Valid=18140, Invalid=230362, Unknown=0, NotChecked=0, Total=248502 [2022-03-20 03:09:36,733 INFO L913 BasicCegarLoop]: 1720 mSDtfsCounter, 8654 mSDsluCounter, 32679 mSDsCounter, 0 mSdLazyCounter, 30301 mSolverCounterSat, 1559 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8654 SdHoareTripleChecker+Valid, 34399 SdHoareTripleChecker+Invalid, 47980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1559 IncrementalHoareTripleChecker+Valid, 30301 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 16119 IncrementalHoareTripleChecker+Unchecked, 39.7s IncrementalHoareTripleChecker+Time [2022-03-20 03:09:36,733 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [8654 Valid, 34399 Invalid, 47980 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1559 Valid, 30301 Invalid, 1 Unknown, 16119 Unchecked, 39.7s Time] [2022-03-20 03:09:37,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922111 states.