/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.02.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-5d317bd [2022-03-18 16:26:46,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-18 16:26:46,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-18 16:26:46,346 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-18 16:26:46,346 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-18 16:26:46,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-18 16:26:46,349 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-18 16:26:46,351 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-18 16:26:46,352 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-18 16:26:46,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-18 16:26:46,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-18 16:26:46,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-18 16:26:46,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-18 16:26:46,360 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-18 16:26:46,361 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-18 16:26:46,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-18 16:26:46,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-18 16:26:46,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-18 16:26:46,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-18 16:26:46,369 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-18 16:26:46,369 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-18 16:26:46,370 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-18 16:26:46,372 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-18 16:26:46,372 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-18 16:26:46,373 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-18 16:26:46,376 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-18 16:26:46,376 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-18 16:26:46,376 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-18 16:26:46,377 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-18 16:26:46,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-18 16:26:46,377 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-18 16:26:46,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-18 16:26:46,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-18 16:26:46,378 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-18 16:26:46,379 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-18 16:26:46,379 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-18 16:26:46,379 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-18 16:26:46,380 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-18 16:26:46,380 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-18 16:26:46,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-18 16:26:46,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-18 16:26:46,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-18 16:26:46,384 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2022-03-18 16:26:46,401 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-18 16:26:46,401 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-18 16:26:46,401 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-18 16:26:46,402 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-18 16:26:46,403 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-18 16:26:46,403 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-18 16:26:46,403 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-18 16:26:46,404 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-18 16:26:46,404 INFO L138 SettingsManager]: * Use SBE=true [2022-03-18 16:26:46,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-18 16:26:46,404 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-18 16:26:46,404 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-18 16:26:46,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-18 16:26:46,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-18 16:26:46,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-18 16:26:46,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-18 16:26:46,405 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-18 16:26:46,405 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-18 16:26:46,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-18 16:26:46,406 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-18 16:26:46,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-18 16:26:46,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-18 16:26:46,406 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-18 16:26:46,406 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-18 16:26:46,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 16:26:46,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-18 16:26:46,407 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-18 16:26:46,407 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-18 16:26:46,407 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-18 16:26:46,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-18 16:26:46,407 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-18 16:26:46,407 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-03-18 16:26:46,407 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-18 16:26:46,407 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-18 16:26:46,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-18 16:26:46,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-18 16:26:46,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-18 16:26:46,604 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-18 16:26:46,606 INFO L275 PluginConnector]: CDTParser initialized [2022-03-18 16:26:46,606 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.02.i.cil-2.c [2022-03-18 16:26:46,652 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f856d4ba5/afb7485ea48e4d339f9ea2b0fcad8795/FLAG092268dcb [2022-03-18 16:26:47,111 INFO L306 CDTParser]: Found 1 translation units. [2022-03-18 16:26:47,112 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.02.i.cil-2.c [2022-03-18 16:26:47,126 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f856d4ba5/afb7485ea48e4d339f9ea2b0fcad8795/FLAG092268dcb [2022-03-18 16:26:47,137 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f856d4ba5/afb7485ea48e4d339f9ea2b0fcad8795 [2022-03-18 16:26:47,139 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-18 16:26:47,140 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-18 16:26:47,141 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-18 16:26:47,141 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-18 16:26:47,143 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-18 16:26:47,144 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 04:26:47" (1/1) ... [2022-03-18 16:26:47,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72968804 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:26:47, skipping insertion in model container [2022-03-18 16:26:47,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 04:26:47" (1/1) ... [2022-03-18 16:26:47,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-18 16:26:47,199 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-18 16:26:47,466 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.02.i.cil-2.c[72502,72515] [2022-03-18 16:26:47,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 16:26:47,490 INFO L203 MainTranslator]: Completed pre-run [2022-03-18 16:26:47,568 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.02.i.cil-2.c[72502,72515] [2022-03-18 16:26:47,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 16:26:47,585 INFO L208 MainTranslator]: Completed translation [2022-03-18 16:26:47,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:26:47 WrapperNode [2022-03-18 16:26:47,585 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-18 16:26:47,586 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-18 16:26:47,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-18 16:26:47,586 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-18 16:26:47,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:26:47" (1/1) ... [2022-03-18 16:26:47,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:26:47" (1/1) ... [2022-03-18 16:26:47,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:26:47" (1/1) ... [2022-03-18 16:26:47,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:26:47" (1/1) ... [2022-03-18 16:26:47,676 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:26:47" (1/1) ... [2022-03-18 16:26:47,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:26:47" (1/1) ... [2022-03-18 16:26:47,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:26:47" (1/1) ... [2022-03-18 16:26:47,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-18 16:26:47,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-18 16:26:47,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-18 16:26:47,686 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-18 16:26:47,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:26:47" (1/1) ... [2022-03-18 16:26:47,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 16:26:47,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:26:47,718 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-18 16:26:47,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-18 16:26:47,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-18 16:26:47,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-18 16:26:47,746 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-18 16:26:47,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-18 16:26:47,748 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-18 16:26:47,748 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-18 16:26:47,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-18 16:26:47,748 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-18 16:26:47,748 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-18 16:26:47,748 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-18 16:26:47,748 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-18 16:26:47,748 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-18 16:26:47,748 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-18 16:26:47,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-18 16:26:47,748 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-18 16:26:47,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-18 16:26:47,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-18 16:26:47,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-18 16:26:47,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-18 16:26:47,749 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-18 16:26:47,749 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-18 16:26:47,749 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-18 16:26:47,749 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-18 16:26:47,749 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-18 16:26:47,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-18 16:26:47,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-18 16:26:47,749 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-18 16:26:47,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-18 16:26:47,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-18 16:26:47,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-18 16:26:47,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-18 16:26:47,749 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-18 16:26:47,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-18 16:26:47,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-18 16:26:47,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-18 16:26:47,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-18 16:26:47,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-18 16:26:47,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-18 16:26:47,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-18 16:26:47,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-18 16:26:47,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-18 16:26:47,887 INFO L234 CfgBuilder]: Building ICFG [2022-03-18 16:26:47,888 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-18 16:26:50,164 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-18 16:26:50,502 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-18 16:26:50,502 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-18 16:26:50,511 INFO L275 CfgBuilder]: Performing block encoding [2022-03-18 16:26:50,518 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-18 16:26:50,518 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-18 16:26:50,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 04:26:50 BoogieIcfgContainer [2022-03-18 16:26:50,519 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-18 16:26:50,521 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-18 16:26:50,521 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-18 16:26:50,523 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-18 16:26:50,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.03 04:26:47" (1/3) ... [2022-03-18 16:26:50,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@645ec041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 04:26:50, skipping insertion in model container [2022-03-18 16:26:50,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:26:47" (2/3) ... [2022-03-18 16:26:50,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@645ec041 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 04:26:50, skipping insertion in model container [2022-03-18 16:26:50,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 04:26:50" (3/3) ... [2022-03-18 16:26:50,525 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.02.i.cil-2.c [2022-03-18 16:26:50,528 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-18 16:26:50,528 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-18 16:26:50,574 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-18 16:26:50,580 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-18 16:26:50,580 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-18 16:26:50,605 INFO L276 IsEmpty]: Start isEmpty. Operand has 153 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-18 16:26:50,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-03-18 16:26:50,616 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:26:50,617 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:26:50,617 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:26:50,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:26:50,623 INFO L85 PathProgramCache]: Analyzing trace with hash -2027838722, now seen corresponding path program 1 times [2022-03-18 16:26:50,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:26:50,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510924236] [2022-03-18 16:26:50,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:26:50,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:26:50,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:26:51,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:26:51,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:26:51,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:26:51,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:26:51,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510924236] [2022-03-18 16:26:51,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510924236] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:26:51,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:26:51,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:26:51,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259890500] [2022-03-18 16:26:51,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:26:51,102 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:26:51,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:26:51,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:26:51,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:26:51,122 INFO L87 Difference]: Start difference. First operand has 153 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:26:54,137 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:26:56,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:26:58,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:26:58,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:26:58,650 INFO L93 Difference]: Finished difference Result 324 states and 540 transitions. [2022-03-18 16:26:58,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:26:58,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2022-03-18 16:26:58,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:26:58,658 INFO L225 Difference]: With dead ends: 324 [2022-03-18 16:26:58,658 INFO L226 Difference]: Without dead ends: 165 [2022-03-18 16:26:58,660 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:26:58,662 INFO L912 BasicCegarLoop]: 219 mSDtfsCounter, 34 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 11 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-03-18 16:26:58,663 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 577 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 402 Invalid, 3 Unknown, 0 Unchecked, 7.5s Time] [2022-03-18 16:26:58,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-03-18 16:26:58,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 148. [2022-03-18 16:26:58,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.5384615384615385) internal successors, (220), 143 states have internal predecessors, (220), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:26:58,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 224 transitions. [2022-03-18 16:26:58,692 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 224 transitions. Word has length 52 [2022-03-18 16:26:58,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:26:58,692 INFO L478 AbstractCegarLoop]: Abstraction has 148 states and 224 transitions. [2022-03-18 16:26:58,693 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:26:58,693 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 224 transitions. [2022-03-18 16:26:58,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-18 16:26:58,694 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:26:58,694 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:26:58,695 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-18 16:26:58,695 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:26:58,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:26:58,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1075038228, now seen corresponding path program 1 times [2022-03-18 16:26:58,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:26:58,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946678844] [2022-03-18 16:26:58,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:26:58,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:26:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:26:58,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:26:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:26:58,872 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:26:58,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:26:58,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946678844] [2022-03-18 16:26:58,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946678844] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:26:58,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:26:58,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:26:58,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731055745] [2022-03-18 16:26:58,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:26:58,877 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:26:58,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:26:58,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:26:58,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:26:58,877 INFO L87 Difference]: Start difference. First operand 148 states and 224 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:01,129 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:27:03,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:27:05,174 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:27:05,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:27:05,735 INFO L93 Difference]: Finished difference Result 384 states and 586 transitions. [2022-03-18 16:27:05,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:27:05,735 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-18 16:27:05,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:27:05,737 INFO L225 Difference]: With dead ends: 384 [2022-03-18 16:27:05,737 INFO L226 Difference]: Without dead ends: 262 [2022-03-18 16:27:05,738 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:27:05,739 INFO L912 BasicCegarLoop]: 243 mSDtfsCounter, 137 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 46 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-18 16:27:05,739 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 584 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 603 Invalid, 3 Unknown, 0 Unchecked, 6.8s Time] [2022-03-18 16:27:05,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-03-18 16:27:05,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 164. [2022-03-18 16:27:05,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 159 states have (on average 1.5408805031446542) internal successors, (245), 159 states have internal predecessors, (245), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:05,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 249 transitions. [2022-03-18 16:27:05,747 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 249 transitions. Word has length 65 [2022-03-18 16:27:05,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:27:05,748 INFO L478 AbstractCegarLoop]: Abstraction has 164 states and 249 transitions. [2022-03-18 16:27:05,748 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:05,748 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 249 transitions. [2022-03-18 16:27:05,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-18 16:27:05,749 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:27:05,749 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:27:05,749 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-18 16:27:05,749 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:27:05,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:27:05,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1045469476, now seen corresponding path program 1 times [2022-03-18 16:27:05,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:27:05,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383858661] [2022-03-18 16:27:05,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:27:05,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:27:05,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:05,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:27:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:05,896 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:27:05,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:27:05,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383858661] [2022-03-18 16:27:05,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383858661] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:27:05,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:27:05,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:27:05,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446047459] [2022-03-18 16:27:05,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:27:05,898 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:27:05,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:27:05,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:27:05,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:27:05,899 INFO L87 Difference]: Start difference. First operand 164 states and 249 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:07,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:27:09,685 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:27:11,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:27:13,736 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:27:14,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:27:14,058 INFO L93 Difference]: Finished difference Result 318 states and 481 transitions. [2022-03-18 16:27:14,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:27:14,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-18 16:27:14,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:27:14,060 INFO L225 Difference]: With dead ends: 318 [2022-03-18 16:27:14,060 INFO L226 Difference]: Without dead ends: 180 [2022-03-18 16:27:14,060 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:27:14,061 INFO L912 BasicCegarLoop]: 178 mSDtfsCounter, 28 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-03-18 16:27:14,061 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 455 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 349 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-03-18 16:27:14,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-03-18 16:27:14,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 164. [2022-03-18 16:27:14,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 159 states have (on average 1.5345911949685536) internal successors, (244), 159 states have internal predecessors, (244), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:14,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 248 transitions. [2022-03-18 16:27:14,068 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 248 transitions. Word has length 66 [2022-03-18 16:27:14,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:27:14,068 INFO L478 AbstractCegarLoop]: Abstraction has 164 states and 248 transitions. [2022-03-18 16:27:14,068 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:14,068 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 248 transitions. [2022-03-18 16:27:14,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-18 16:27:14,069 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:27:14,069 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:27:14,070 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-18 16:27:14,070 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:27:14,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:27:14,070 INFO L85 PathProgramCache]: Analyzing trace with hash -207458704, now seen corresponding path program 1 times [2022-03-18 16:27:14,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:27:14,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634482168] [2022-03-18 16:27:14,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:27:14,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:27:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:14,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:27:14,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:14,225 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:27:14,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:27:14,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634482168] [2022-03-18 16:27:14,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634482168] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:27:14,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:27:14,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:27:14,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592400874] [2022-03-18 16:27:14,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:27:14,226 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:27:14,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:27:14,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:27:14,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:27:14,227 INFO L87 Difference]: Start difference. First operand 164 states and 248 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:16,237 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:27:16,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:27:16,582 INFO L93 Difference]: Finished difference Result 318 states and 480 transitions. [2022-03-18 16:27:16,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:27:16,583 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-18 16:27:16,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:27:16,584 INFO L225 Difference]: With dead ends: 318 [2022-03-18 16:27:16,584 INFO L226 Difference]: Without dead ends: 180 [2022-03-18 16:27:16,585 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:27:16,585 INFO L912 BasicCegarLoop]: 178 mSDtfsCounter, 26 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:27:16,585 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 455 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 348 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:27:16,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-03-18 16:27:16,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 164. [2022-03-18 16:27:16,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 159 states have (on average 1.528301886792453) internal successors, (243), 159 states have internal predecessors, (243), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:16,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 247 transitions. [2022-03-18 16:27:16,606 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 247 transitions. Word has length 66 [2022-03-18 16:27:16,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:27:16,607 INFO L478 AbstractCegarLoop]: Abstraction has 164 states and 247 transitions. [2022-03-18 16:27:16,607 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:16,607 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 247 transitions. [2022-03-18 16:27:16,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-18 16:27:16,611 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:27:16,612 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:27:16,612 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-18 16:27:16,612 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:27:16,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:27:16,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1867256871, now seen corresponding path program 1 times [2022-03-18 16:27:16,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:27:16,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211429583] [2022-03-18 16:27:16,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:27:16,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:27:16,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:16,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:27:16,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:16,726 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:27:16,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:27:16,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211429583] [2022-03-18 16:27:16,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211429583] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:27:16,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:27:16,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:27:16,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141867327] [2022-03-18 16:27:16,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:27:16,728 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:27:16,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:27:16,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:27:16,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:27:16,728 INFO L87 Difference]: Start difference. First operand 164 states and 247 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:18,743 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:27:19,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:27:19,188 INFO L93 Difference]: Finished difference Result 416 states and 635 transitions. [2022-03-18 16:27:19,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:27:19,189 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-18 16:27:19,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:27:19,190 INFO L225 Difference]: With dead ends: 416 [2022-03-18 16:27:19,190 INFO L226 Difference]: Without dead ends: 278 [2022-03-18 16:27:19,190 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:27:19,191 INFO L912 BasicCegarLoop]: 107 mSDtfsCounter, 136 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:27:19,191 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 312 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:27:19,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-03-18 16:27:19,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 181. [2022-03-18 16:27:19,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 176 states have (on average 1.5340909090909092) internal successors, (270), 176 states have internal predecessors, (270), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:19,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 274 transitions. [2022-03-18 16:27:19,197 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 274 transitions. Word has length 66 [2022-03-18 16:27:19,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:27:19,197 INFO L478 AbstractCegarLoop]: Abstraction has 181 states and 274 transitions. [2022-03-18 16:27:19,198 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:19,198 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 274 transitions. [2022-03-18 16:27:19,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-18 16:27:19,199 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:27:19,199 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:27:19,199 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-18 16:27:19,199 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:27:19,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:27:19,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1927058904, now seen corresponding path program 1 times [2022-03-18 16:27:19,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:27:19,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453240735] [2022-03-18 16:27:19,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:27:19,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:27:19,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:19,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:27:19,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:19,310 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:27:19,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:27:19,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453240735] [2022-03-18 16:27:19,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453240735] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:27:19,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:27:19,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:27:19,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596238005] [2022-03-18 16:27:19,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:27:19,311 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:27:19,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:27:19,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:27:19,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:27:19,312 INFO L87 Difference]: Start difference. First operand 181 states and 274 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:22,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:27:24,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:27:26,077 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:27:26,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:27:26,428 INFO L93 Difference]: Finished difference Result 349 states and 531 transitions. [2022-03-18 16:27:26,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:27:26,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-18 16:27:26,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:27:26,430 INFO L225 Difference]: With dead ends: 349 [2022-03-18 16:27:26,430 INFO L226 Difference]: Without dead ends: 194 [2022-03-18 16:27:26,430 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:27:26,432 INFO L912 BasicCegarLoop]: 181 mSDtfsCounter, 18 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-03-18 16:27:26,433 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 461 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 344 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-03-18 16:27:26,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-03-18 16:27:26,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 181. [2022-03-18 16:27:26,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 176 states have (on average 1.5284090909090908) internal successors, (269), 176 states have internal predecessors, (269), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:26,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 273 transitions. [2022-03-18 16:27:26,444 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 273 transitions. Word has length 66 [2022-03-18 16:27:26,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:27:26,444 INFO L478 AbstractCegarLoop]: Abstraction has 181 states and 273 transitions. [2022-03-18 16:27:26,444 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:26,445 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 273 transitions. [2022-03-18 16:27:26,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-18 16:27:26,448 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:27:26,448 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:27:26,448 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-18 16:27:26,448 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:27:26,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:27:26,449 INFO L85 PathProgramCache]: Analyzing trace with hash 527212629, now seen corresponding path program 1 times [2022-03-18 16:27:26,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:27:26,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462635920] [2022-03-18 16:27:26,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:27:26,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:27:26,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:26,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:27:26,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:26,541 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:27:26,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:27:26,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462635920] [2022-03-18 16:27:26,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462635920] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:27:26,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:27:26,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:27:26,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244321918] [2022-03-18 16:27:26,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:27:26,543 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:27:26,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:27:26,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:27:26,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:27:26,543 INFO L87 Difference]: Start difference. First operand 181 states and 273 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:28,557 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:27:28,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:27:28,887 INFO L93 Difference]: Finished difference Result 349 states and 530 transitions. [2022-03-18 16:27:28,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:27:28,890 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-03-18 16:27:28,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:27:28,891 INFO L225 Difference]: With dead ends: 349 [2022-03-18 16:27:28,891 INFO L226 Difference]: Without dead ends: 194 [2022-03-18 16:27:28,891 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:27:28,892 INFO L912 BasicCegarLoop]: 181 mSDtfsCounter, 22 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:27:28,897 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 461 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:27:28,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-03-18 16:27:28,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 181. [2022-03-18 16:27:28,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 176 states have (on average 1.5227272727272727) internal successors, (268), 176 states have internal predecessors, (268), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:28,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 272 transitions. [2022-03-18 16:27:28,901 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 272 transitions. Word has length 67 [2022-03-18 16:27:28,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:27:28,902 INFO L478 AbstractCegarLoop]: Abstraction has 181 states and 272 transitions. [2022-03-18 16:27:28,902 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:28,902 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 272 transitions. [2022-03-18 16:27:28,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-18 16:27:28,904 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:27:28,904 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:27:28,904 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-18 16:27:28,904 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:27:28,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:27:28,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1788390677, now seen corresponding path program 1 times [2022-03-18 16:27:28,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:27:28,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865188217] [2022-03-18 16:27:28,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:27:28,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:27:28,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:29,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:27:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:29,006 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:27:29,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:27:29,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865188217] [2022-03-18 16:27:29,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865188217] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:27:29,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:27:29,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:27:29,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558182164] [2022-03-18 16:27:29,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:27:29,009 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:27:29,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:27:29,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:27:29,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:27:29,012 INFO L87 Difference]: Start difference. First operand 181 states and 272 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:31,020 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:27:31,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:27:31,359 INFO L93 Difference]: Finished difference Result 349 states and 529 transitions. [2022-03-18 16:27:31,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:27:31,360 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-03-18 16:27:31,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:27:31,361 INFO L225 Difference]: With dead ends: 349 [2022-03-18 16:27:31,361 INFO L226 Difference]: Without dead ends: 194 [2022-03-18 16:27:31,361 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:27:31,362 INFO L912 BasicCegarLoop]: 181 mSDtfsCounter, 20 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:27:31,362 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 461 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:27:31,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-03-18 16:27:31,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 181. [2022-03-18 16:27:31,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 176 states have (on average 1.5170454545454546) internal successors, (267), 176 states have internal predecessors, (267), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:31,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 271 transitions. [2022-03-18 16:27:31,366 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 271 transitions. Word has length 68 [2022-03-18 16:27:31,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:27:31,366 INFO L478 AbstractCegarLoop]: Abstraction has 181 states and 271 transitions. [2022-03-18 16:27:31,366 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:31,366 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 271 transitions. [2022-03-18 16:27:31,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-18 16:27:31,367 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:27:31,367 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:27:31,367 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-18 16:27:31,367 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:27:31,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:27:31,368 INFO L85 PathProgramCache]: Analyzing trace with hash -2103559590, now seen corresponding path program 1 times [2022-03-18 16:27:31,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:27:31,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228979959] [2022-03-18 16:27:31,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:27:31,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:27:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:31,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:27:31,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:31,456 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:27:31,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:27:31,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228979959] [2022-03-18 16:27:31,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228979959] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:27:31,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:27:31,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:27:31,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027261648] [2022-03-18 16:27:31,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:27:31,457 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:27:31,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:27:31,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:27:31,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:27:31,458 INFO L87 Difference]: Start difference. First operand 181 states and 271 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:33,467 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:27:33,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:27:33,800 INFO L93 Difference]: Finished difference Result 339 states and 515 transitions. [2022-03-18 16:27:33,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:27:33,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-03-18 16:27:33,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:27:33,801 INFO L225 Difference]: With dead ends: 339 [2022-03-18 16:27:33,801 INFO L226 Difference]: Without dead ends: 184 [2022-03-18 16:27:33,802 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:27:33,802 INFO L912 BasicCegarLoop]: 188 mSDtfsCounter, 11 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:27:33,802 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 475 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 328 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:27:33,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-03-18 16:27:33,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 181. [2022-03-18 16:27:33,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 176 states have (on average 1.5113636363636365) internal successors, (266), 176 states have internal predecessors, (266), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:33,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 270 transitions. [2022-03-18 16:27:33,806 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 270 transitions. Word has length 69 [2022-03-18 16:27:33,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:27:33,807 INFO L478 AbstractCegarLoop]: Abstraction has 181 states and 270 transitions. [2022-03-18 16:27:33,807 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:33,807 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 270 transitions. [2022-03-18 16:27:33,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-18 16:27:33,807 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:27:33,807 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:27:33,807 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-18 16:27:33,808 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:27:33,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:27:33,808 INFO L85 PathProgramCache]: Analyzing trace with hash 890818627, now seen corresponding path program 1 times [2022-03-18 16:27:33,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:27:33,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496787235] [2022-03-18 16:27:33,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:27:33,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:27:33,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:33,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:27:33,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:33,915 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:27:33,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:27:33,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496787235] [2022-03-18 16:27:33,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496787235] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:27:33,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:27:33,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:27:33,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662928662] [2022-03-18 16:27:33,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:27:33,917 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:27:33,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:27:33,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:27:33,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:27:33,918 INFO L87 Difference]: Start difference. First operand 181 states and 270 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:35,925 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:27:36,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:27:36,432 INFO L93 Difference]: Finished difference Result 450 states and 684 transitions. [2022-03-18 16:27:36,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:27:36,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-03-18 16:27:36,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:27:36,437 INFO L225 Difference]: With dead ends: 450 [2022-03-18 16:27:36,437 INFO L226 Difference]: Without dead ends: 295 [2022-03-18 16:27:36,438 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:27:36,438 INFO L912 BasicCegarLoop]: 107 mSDtfsCounter, 109 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-18 16:27:36,438 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 313 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-18 16:27:36,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2022-03-18 16:27:36,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 224. [2022-03-18 16:27:36,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 219 states have (on average 1.5707762557077625) internal successors, (344), 219 states have internal predecessors, (344), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:36,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 348 transitions. [2022-03-18 16:27:36,443 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 348 transitions. Word has length 69 [2022-03-18 16:27:36,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:27:36,443 INFO L478 AbstractCegarLoop]: Abstraction has 224 states and 348 transitions. [2022-03-18 16:27:36,443 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:36,443 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 348 transitions. [2022-03-18 16:27:36,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-03-18 16:27:36,444 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:27:36,444 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:27:36,444 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-18 16:27:36,444 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:27:36,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:27:36,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1838419001, now seen corresponding path program 1 times [2022-03-18 16:27:36,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:27:36,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146677795] [2022-03-18 16:27:36,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:27:36,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:27:36,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:36,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:27:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:36,520 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:27:36,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:27:36,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146677795] [2022-03-18 16:27:36,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146677795] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:27:36,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:27:36,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:27:36,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081719989] [2022-03-18 16:27:36,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:27:36,520 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:27:36,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:27:36,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:27:36,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:27:36,521 INFO L87 Difference]: Start difference. First operand 224 states and 348 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:38,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:27:38,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:27:38,849 INFO L93 Difference]: Finished difference Result 464 states and 730 transitions. [2022-03-18 16:27:38,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:27:38,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2022-03-18 16:27:38,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:27:38,851 INFO L225 Difference]: With dead ends: 464 [2022-03-18 16:27:38,851 INFO L226 Difference]: Without dead ends: 266 [2022-03-18 16:27:38,852 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:27:38,852 INFO L912 BasicCegarLoop]: 186 mSDtfsCounter, 34 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:27:38,852 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 477 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 380 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:27:38,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-03-18 16:27:38,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 246. [2022-03-18 16:27:38,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5767634854771784) internal successors, (380), 241 states have internal predecessors, (380), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:38,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 384 transitions. [2022-03-18 16:27:38,868 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 384 transitions. Word has length 70 [2022-03-18 16:27:38,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:27:38,869 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 384 transitions. [2022-03-18 16:27:38,869 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:38,869 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 384 transitions. [2022-03-18 16:27:38,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-18 16:27:38,870 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:27:38,870 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:27:38,870 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-18 16:27:38,870 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:27:38,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:27:38,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1454749477, now seen corresponding path program 1 times [2022-03-18 16:27:38,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:27:38,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081265316] [2022-03-18 16:27:38,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:27:38,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:27:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:38,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:27:38,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:38,977 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-18 16:27:38,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:27:38,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081265316] [2022-03-18 16:27:38,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081265316] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:27:38,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:27:38,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:27:38,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861586473] [2022-03-18 16:27:38,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:27:38,978 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:27:38,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:27:38,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:27:38,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:27:38,978 INFO L87 Difference]: Start difference. First operand 246 states and 384 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:40,986 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:27:41,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:27:41,347 INFO L93 Difference]: Finished difference Result 479 states and 754 transitions. [2022-03-18 16:27:41,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:27:41,348 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-18 16:27:41,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:27:41,349 INFO L225 Difference]: With dead ends: 479 [2022-03-18 16:27:41,349 INFO L226 Difference]: Without dead ends: 259 [2022-03-18 16:27:41,350 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:27:41,350 INFO L912 BasicCegarLoop]: 220 mSDtfsCounter, 22 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:27:41,350 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 544 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:27:41,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-03-18 16:27:41,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 246. [2022-03-18 16:27:41,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5726141078838174) internal successors, (379), 241 states have internal predecessors, (379), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:41,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 383 transitions. [2022-03-18 16:27:41,357 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 383 transitions. Word has length 84 [2022-03-18 16:27:41,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:27:41,357 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 383 transitions. [2022-03-18 16:27:41,358 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:41,358 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 383 transitions. [2022-03-18 16:27:41,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-18 16:27:41,358 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:27:41,358 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:27:41,359 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-18 16:27:41,359 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:27:41,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:27:41,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1280749327, now seen corresponding path program 1 times [2022-03-18 16:27:41,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:27:41,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233577997] [2022-03-18 16:27:41,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:27:41,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:27:41,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:41,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:27:41,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:41,456 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:27:41,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:27:41,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233577997] [2022-03-18 16:27:41,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233577997] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:27:41,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:27:41,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:27:41,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340656910] [2022-03-18 16:27:41,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:27:41,457 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:27:41,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:27:41,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:27:41,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:27:41,458 INFO L87 Difference]: Start difference. First operand 246 states and 383 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:43,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:27:43,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:27:43,899 INFO L93 Difference]: Finished difference Result 562 states and 882 transitions. [2022-03-18 16:27:43,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:27:43,900 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-18 16:27:43,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:27:43,901 INFO L225 Difference]: With dead ends: 562 [2022-03-18 16:27:43,901 INFO L226 Difference]: Without dead ends: 342 [2022-03-18 16:27:43,902 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:27:43,902 INFO L912 BasicCegarLoop]: 109 mSDtfsCounter, 135 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:27:43,902 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 316 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:27:43,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-03-18 16:27:43,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 247. [2022-03-18 16:27:43,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.56198347107438) internal successors, (378), 242 states have internal predecessors, (378), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:43,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 382 transitions. [2022-03-18 16:27:43,907 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 382 transitions. Word has length 84 [2022-03-18 16:27:43,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:27:43,907 INFO L478 AbstractCegarLoop]: Abstraction has 247 states and 382 transitions. [2022-03-18 16:27:43,907 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:43,907 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 382 transitions. [2022-03-18 16:27:43,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-18 16:27:43,908 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:27:43,908 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:27:43,908 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-18 16:27:43,908 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:27:43,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:27:43,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1669457340, now seen corresponding path program 1 times [2022-03-18 16:27:43,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:27:43,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252597860] [2022-03-18 16:27:43,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:27:43,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:27:43,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:44,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:27:44,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:44,026 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-18 16:27:44,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:27:44,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252597860] [2022-03-18 16:27:44,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252597860] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:27:44,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:27:44,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-18 16:27:44,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538210167] [2022-03-18 16:27:44,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:27:44,027 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-18 16:27:44,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:27:44,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-18 16:27:44,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:27:44,028 INFO L87 Difference]: Start difference. First operand 247 states and 382 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:46,035 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:27:46,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:27:46,360 INFO L93 Difference]: Finished difference Result 477 states and 746 transitions. [2022-03-18 16:27:46,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-18 16:27:46,360 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-03-18 16:27:46,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:27:46,361 INFO L225 Difference]: With dead ends: 477 [2022-03-18 16:27:46,361 INFO L226 Difference]: Without dead ends: 256 [2022-03-18 16:27:46,362 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-18 16:27:46,362 INFO L912 BasicCegarLoop]: 193 mSDtfsCounter, 3 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:27:46,362 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 593 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 421 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:27:46,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-03-18 16:27:46,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2022-03-18 16:27:46,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 251 states have (on average 1.549800796812749) internal successors, (389), 251 states have internal predecessors, (389), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:46,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 393 transitions. [2022-03-18 16:27:46,367 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 393 transitions. Word has length 85 [2022-03-18 16:27:46,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:27:46,367 INFO L478 AbstractCegarLoop]: Abstraction has 256 states and 393 transitions. [2022-03-18 16:27:46,367 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:46,367 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 393 transitions. [2022-03-18 16:27:46,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-18 16:27:46,367 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:27:46,368 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:27:46,368 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-18 16:27:46,368 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:27:46,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:27:46,368 INFO L85 PathProgramCache]: Analyzing trace with hash 500010200, now seen corresponding path program 1 times [2022-03-18 16:27:46,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:27:46,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860749248] [2022-03-18 16:27:46,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:27:46,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:27:46,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:46,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:27:46,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:46,447 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:27:46,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:27:46,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860749248] [2022-03-18 16:27:46,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860749248] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:27:46,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:27:46,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:27:46,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183548569] [2022-03-18 16:27:46,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:27:46,447 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:27:46,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:27:46,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:27:46,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:27:46,448 INFO L87 Difference]: Start difference. First operand 256 states and 393 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) [2022-03-18 16:27:48,467 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:27:48,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:27:48,875 INFO L93 Difference]: Finished difference Result 590 states and 911 transitions. [2022-03-18 16:27:48,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:27:48,876 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 [2022-03-18 16:27:48,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:27:48,878 INFO L225 Difference]: With dead ends: 590 [2022-03-18 16:27:48,878 INFO L226 Difference]: Without dead ends: 360 [2022-03-18 16:27:48,879 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:27:48,879 INFO L912 BasicCegarLoop]: 109 mSDtfsCounter, 140 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:27:48,880 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 316 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:27:48,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-03-18 16:27:48,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 256. [2022-03-18 16:27:48,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 251 states have (on average 1.5338645418326693) internal successors, (385), 251 states have internal predecessors, (385), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:48,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 389 transitions. [2022-03-18 16:27:48,891 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 389 transitions. Word has length 85 [2022-03-18 16:27:48,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:27:48,891 INFO L478 AbstractCegarLoop]: Abstraction has 256 states and 389 transitions. [2022-03-18 16:27:48,891 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) [2022-03-18 16:27:48,891 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 389 transitions. [2022-03-18 16:27:48,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-18 16:27:48,892 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:27:48,892 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:27:48,892 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-18 16:27:48,892 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:27:48,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:27:48,892 INFO L85 PathProgramCache]: Analyzing trace with hash -989381741, now seen corresponding path program 1 times [2022-03-18 16:27:48,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:27:48,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298983187] [2022-03-18 16:27:48,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:27:48,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:27:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:49,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:27:49,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:49,012 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:27:49,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:27:49,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298983187] [2022-03-18 16:27:49,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298983187] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:27:49,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:27:49,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:27:49,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960393034] [2022-03-18 16:27:49,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:27:49,014 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:27:49,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:27:49,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:27:49,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:27:49,015 INFO L87 Difference]: Start difference. First operand 256 states and 389 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:51,027 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:27:51,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:27:51,484 INFO L93 Difference]: Finished difference Result 590 states and 903 transitions. [2022-03-18 16:27:51,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:27:51,484 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 86 [2022-03-18 16:27:51,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:27:51,486 INFO L225 Difference]: With dead ends: 590 [2022-03-18 16:27:51,486 INFO L226 Difference]: Without dead ends: 360 [2022-03-18 16:27:51,486 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:27:51,487 INFO L912 BasicCegarLoop]: 109 mSDtfsCounter, 138 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:27:51,487 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 316 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:27:51,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-03-18 16:27:51,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 256. [2022-03-18 16:27:51,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 251 states have (on average 1.5179282868525896) internal successors, (381), 251 states have internal predecessors, (381), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:51,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 385 transitions. [2022-03-18 16:27:51,492 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 385 transitions. Word has length 86 [2022-03-18 16:27:51,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:27:51,492 INFO L478 AbstractCegarLoop]: Abstraction has 256 states and 385 transitions. [2022-03-18 16:27:51,493 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:51,493 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 385 transitions. [2022-03-18 16:27:51,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-18 16:27:51,493 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:27:51,493 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:27:51,493 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-18 16:27:51,494 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:27:51,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:27:51,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1455094013, now seen corresponding path program 1 times [2022-03-18 16:27:51,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:27:51,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75405877] [2022-03-18 16:27:51,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:27:51,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:27:51,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:51,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:27:51,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:51,589 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:27:51,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:27:51,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75405877] [2022-03-18 16:27:51,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75405877] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:27:51,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:27:51,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:27:51,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820643117] [2022-03-18 16:27:51,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:27:51,590 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:27:51,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:27:51,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:27:51,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:27:51,591 INFO L87 Difference]: Start difference. First operand 256 states and 385 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) [2022-03-18 16:27:53,603 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:27:54,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:27:54,029 INFO L93 Difference]: Finished difference Result 590 states and 895 transitions. [2022-03-18 16:27:54,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:27:54,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-03-18 16:27:54,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:27:54,031 INFO L225 Difference]: With dead ends: 590 [2022-03-18 16:27:54,031 INFO L226 Difference]: Without dead ends: 360 [2022-03-18 16:27:54,031 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:27:54,032 INFO L912 BasicCegarLoop]: 109 mSDtfsCounter, 136 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:27:54,032 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 316 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:27:54,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-03-18 16:27:54,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 256. [2022-03-18 16:27:54,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 251 states have (on average 1.50199203187251) internal successors, (377), 251 states have internal predecessors, (377), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:54,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 381 transitions. [2022-03-18 16:27:54,036 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 381 transitions. Word has length 87 [2022-03-18 16:27:54,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:27:54,037 INFO L478 AbstractCegarLoop]: Abstraction has 256 states and 381 transitions. [2022-03-18 16:27:54,037 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) [2022-03-18 16:27:54,037 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 381 transitions. [2022-03-18 16:27:54,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-03-18 16:27:54,037 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:27:54,037 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:27:54,038 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-18 16:27:54,038 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:27:54,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:27:54,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1295416728, now seen corresponding path program 1 times [2022-03-18 16:27:54,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:27:54,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692766260] [2022-03-18 16:27:54,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:27:54,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:27:54,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:54,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:27:54,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:54,140 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:27:54,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:27:54,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692766260] [2022-03-18 16:27:54,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692766260] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:27:54,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:27:54,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:27:54,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040676620] [2022-03-18 16:27:54,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:27:54,140 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:27:54,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:27:54,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:27:54,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:27:54,141 INFO L87 Difference]: Start difference. First operand 256 states and 381 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:56,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:27:56,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:27:56,569 INFO L93 Difference]: Finished difference Result 580 states and 874 transitions. [2022-03-18 16:27:56,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:27:56,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 88 [2022-03-18 16:27:56,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:27:56,571 INFO L225 Difference]: With dead ends: 580 [2022-03-18 16:27:56,571 INFO L226 Difference]: Without dead ends: 350 [2022-03-18 16:27:56,571 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:27:56,572 INFO L912 BasicCegarLoop]: 110 mSDtfsCounter, 133 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:27:56,572 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 318 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 460 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:27:56,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-03-18 16:27:56,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 256. [2022-03-18 16:27:56,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 251 states have (on average 1.4860557768924303) internal successors, (373), 251 states have internal predecessors, (373), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:56,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 377 transitions. [2022-03-18 16:27:56,577 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 377 transitions. Word has length 88 [2022-03-18 16:27:56,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:27:56,577 INFO L478 AbstractCegarLoop]: Abstraction has 256 states and 377 transitions. [2022-03-18 16:27:56,577 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:56,577 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 377 transitions. [2022-03-18 16:27:56,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-18 16:27:56,578 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:27:56,578 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:27:56,578 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-18 16:27:56,578 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:27:56,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:27:56,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1325248613, now seen corresponding path program 1 times [2022-03-18 16:27:56,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:27:56,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168131460] [2022-03-18 16:27:56,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:27:56,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:27:56,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:56,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:27:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:56,691 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 16:27:56,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:27:56,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168131460] [2022-03-18 16:27:56,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168131460] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:27:56,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:27:56,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:27:56,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599892479] [2022-03-18 16:27:56,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:27:56,693 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:27:56,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:27:56,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:27:56,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:27:56,694 INFO L87 Difference]: Start difference. First operand 256 states and 377 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:58,702 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:27:59,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:27:59,112 INFO L93 Difference]: Finished difference Result 578 states and 861 transitions. [2022-03-18 16:27:59,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:27:59,113 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 92 [2022-03-18 16:27:59,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:27:59,114 INFO L225 Difference]: With dead ends: 578 [2022-03-18 16:27:59,114 INFO L226 Difference]: Without dead ends: 348 [2022-03-18 16:27:59,114 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:27:59,115 INFO L912 BasicCegarLoop]: 182 mSDtfsCounter, 70 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:27:59,115 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 469 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 513 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:27:59,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-03-18 16:27:59,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 299. [2022-03-18 16:27:59,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.510204081632653) internal successors, (444), 294 states have internal predecessors, (444), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:59,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 448 transitions. [2022-03-18 16:27:59,120 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 448 transitions. Word has length 92 [2022-03-18 16:27:59,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:27:59,120 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 448 transitions. [2022-03-18 16:27:59,120 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:27:59,120 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 448 transitions. [2022-03-18 16:27:59,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-18 16:27:59,121 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:27:59,121 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:27:59,121 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-18 16:27:59,121 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:27:59,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:27:59,121 INFO L85 PathProgramCache]: Analyzing trace with hash -724139229, now seen corresponding path program 1 times [2022-03-18 16:27:59,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:27:59,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656468863] [2022-03-18 16:27:59,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:27:59,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:27:59,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:59,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:27:59,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:27:59,220 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 16:27:59,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:27:59,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656468863] [2022-03-18 16:27:59,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656468863] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:27:59,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:27:59,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:27:59,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860881109] [2022-03-18 16:27:59,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:27:59,221 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:27:59,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:27:59,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:27:59,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:27:59,221 INFO L87 Difference]: Start difference. First operand 299 states and 448 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:01,229 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:28:01,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:28:01,611 INFO L93 Difference]: Finished difference Result 618 states and 931 transitions. [2022-03-18 16:28:01,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:28:01,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 92 [2022-03-18 16:28:01,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:28:01,612 INFO L225 Difference]: With dead ends: 618 [2022-03-18 16:28:01,612 INFO L226 Difference]: Without dead ends: 345 [2022-03-18 16:28:01,613 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:28:01,613 INFO L912 BasicCegarLoop]: 233 mSDtfsCounter, 34 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:28:01,613 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 569 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 441 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:28:01,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2022-03-18 16:28:01,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 323. [2022-03-18 16:28:01,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 318 states have (on average 1.5062893081761006) internal successors, (479), 318 states have internal predecessors, (479), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:01,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 483 transitions. [2022-03-18 16:28:01,619 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 483 transitions. Word has length 92 [2022-03-18 16:28:01,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:28:01,619 INFO L478 AbstractCegarLoop]: Abstraction has 323 states and 483 transitions. [2022-03-18 16:28:01,620 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:01,620 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 483 transitions. [2022-03-18 16:28:01,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-03-18 16:28:01,620 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:28:01,620 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:28:01,620 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-18 16:28:01,621 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:28:01,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:28:01,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1582990547, now seen corresponding path program 1 times [2022-03-18 16:28:01,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:28:01,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184949724] [2022-03-18 16:28:01,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:28:01,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:28:01,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:01,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:28:01,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:01,713 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 16:28:01,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:28:01,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184949724] [2022-03-18 16:28:01,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184949724] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:28:01,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:28:01,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:28:01,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660353630] [2022-03-18 16:28:01,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:28:01,714 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:28:01,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:28:01,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:28:01,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:28:01,715 INFO L87 Difference]: Start difference. First operand 323 states and 483 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) [2022-03-18 16:28:03,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:28:04,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:28:04,119 INFO L93 Difference]: Finished difference Result 704 states and 1066 transitions. [2022-03-18 16:28:04,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:28:04,120 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 97 [2022-03-18 16:28:04,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:28:04,121 INFO L225 Difference]: With dead ends: 704 [2022-03-18 16:28:04,121 INFO L226 Difference]: Without dead ends: 407 [2022-03-18 16:28:04,122 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:28:04,122 INFO L912 BasicCegarLoop]: 120 mSDtfsCounter, 130 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:28:04,122 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 338 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 449 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:28:04,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-03-18 16:28:04,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 323. [2022-03-18 16:28:04,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 318 states have (on average 1.4874213836477987) internal successors, (473), 318 states have internal predecessors, (473), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:04,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 477 transitions. [2022-03-18 16:28:04,128 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 477 transitions. Word has length 97 [2022-03-18 16:28:04,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:28:04,128 INFO L478 AbstractCegarLoop]: Abstraction has 323 states and 477 transitions. [2022-03-18 16:28:04,128 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) [2022-03-18 16:28:04,128 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 477 transitions. [2022-03-18 16:28:04,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-03-18 16:28:04,129 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:28:04,129 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:28:04,129 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-18 16:28:04,129 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:28:04,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:28:04,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1180391555, now seen corresponding path program 1 times [2022-03-18 16:28:04,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:28:04,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879280426] [2022-03-18 16:28:04,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:28:04,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:28:04,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:04,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:28:04,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:04,227 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 16:28:04,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:28:04,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879280426] [2022-03-18 16:28:04,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879280426] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:28:04,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:28:04,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:28:04,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078102519] [2022-03-18 16:28:04,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:28:04,228 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:28:04,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:28:04,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:28:04,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:28:04,228 INFO L87 Difference]: Start difference. First operand 323 states and 477 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) [2022-03-18 16:28:06,239 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:28:06,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:28:06,616 INFO L93 Difference]: Finished difference Result 659 states and 977 transitions. [2022-03-18 16:28:06,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:28:06,616 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 114 [2022-03-18 16:28:06,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:28:06,617 INFO L225 Difference]: With dead ends: 659 [2022-03-18 16:28:06,617 INFO L226 Difference]: Without dead ends: 362 [2022-03-18 16:28:06,618 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:28:06,618 INFO L912 BasicCegarLoop]: 182 mSDtfsCounter, 79 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:28:06,618 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 469 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 489 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:28:06,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-03-18 16:28:06,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 323. [2022-03-18 16:28:06,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 318 states have (on average 1.4842767295597483) internal successors, (472), 318 states have internal predecessors, (472), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:06,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 476 transitions. [2022-03-18 16:28:06,624 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 476 transitions. Word has length 114 [2022-03-18 16:28:06,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:28:06,624 INFO L478 AbstractCegarLoop]: Abstraction has 323 states and 476 transitions. [2022-03-18 16:28:06,624 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) [2022-03-18 16:28:06,624 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 476 transitions. [2022-03-18 16:28:06,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-03-18 16:28:06,625 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:28:06,625 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:28:06,625 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-18 16:28:06,625 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:28:06,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:28:06,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1912358981, now seen corresponding path program 1 times [2022-03-18 16:28:06,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:28:06,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816353427] [2022-03-18 16:28:06,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:28:06,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:28:06,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:06,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:28:06,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:06,713 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-18 16:28:06,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:28:06,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816353427] [2022-03-18 16:28:06,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816353427] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:28:06,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:28:06,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:28:06,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526345347] [2022-03-18 16:28:06,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:28:06,715 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:28:06,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:28:06,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:28:06,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:28:06,715 INFO L87 Difference]: Start difference. First operand 323 states and 476 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:08,735 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:28:09,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:28:09,001 INFO L93 Difference]: Finished difference Result 895 states and 1342 transitions. [2022-03-18 16:28:09,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:28:09,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 114 [2022-03-18 16:28:09,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:28:09,005 INFO L225 Difference]: With dead ends: 895 [2022-03-18 16:28:09,005 INFO L226 Difference]: Without dead ends: 598 [2022-03-18 16:28:09,015 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:28:09,016 INFO L912 BasicCegarLoop]: 233 mSDtfsCounter, 130 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:28:09,016 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 427 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 253 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:28:09,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-03-18 16:28:09,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 598. [2022-03-18 16:28:09,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 593 states have (on average 1.4957841483979764) internal successors, (887), 593 states have internal predecessors, (887), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:09,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 891 transitions. [2022-03-18 16:28:09,025 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 891 transitions. Word has length 114 [2022-03-18 16:28:09,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:28:09,025 INFO L478 AbstractCegarLoop]: Abstraction has 598 states and 891 transitions. [2022-03-18 16:28:09,025 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:09,025 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 891 transitions. [2022-03-18 16:28:09,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-03-18 16:28:09,026 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:28:09,027 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:28:09,027 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-18 16:28:09,027 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:28:09,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:28:09,027 INFO L85 PathProgramCache]: Analyzing trace with hash -510498908, now seen corresponding path program 1 times [2022-03-18 16:28:09,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:28:09,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434763779] [2022-03-18 16:28:09,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:28:09,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:28:09,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:09,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:28:09,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:09,129 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-18 16:28:09,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:28:09,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434763779] [2022-03-18 16:28:09,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434763779] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:28:09,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:28:09,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:28:09,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440366127] [2022-03-18 16:28:09,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:28:09,130 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:28:09,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:28:09,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:28:09,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:28:09,130 INFO L87 Difference]: Start difference. First operand 598 states and 891 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) [2022-03-18 16:28:11,138 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:28:11,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:28:11,367 INFO L93 Difference]: Finished difference Result 1197 states and 1789 transitions. [2022-03-18 16:28:11,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:28:11,368 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 115 [2022-03-18 16:28:11,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:28:11,369 INFO L225 Difference]: With dead ends: 1197 [2022-03-18 16:28:11,369 INFO L226 Difference]: Without dead ends: 625 [2022-03-18 16:28:11,370 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:28:11,371 INFO L912 BasicCegarLoop]: 213 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:28:11,371 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 407 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 227 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-18 16:28:11,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2022-03-18 16:28:11,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 625. [2022-03-18 16:28:11,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 620 states have (on average 1.4870967741935484) internal successors, (922), 620 states have internal predecessors, (922), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:11,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 926 transitions. [2022-03-18 16:28:11,379 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 926 transitions. Word has length 115 [2022-03-18 16:28:11,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:28:11,379 INFO L478 AbstractCegarLoop]: Abstraction has 625 states and 926 transitions. [2022-03-18 16:28:11,380 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) [2022-03-18 16:28:11,380 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 926 transitions. [2022-03-18 16:28:11,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-03-18 16:28:11,381 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:28:11,381 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:28:11,381 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-18 16:28:11,381 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:28:11,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:28:11,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1281232474, now seen corresponding path program 1 times [2022-03-18 16:28:11,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:28:11,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494825603] [2022-03-18 16:28:11,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:28:11,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:28:11,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:11,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:28:11,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:11,452 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-03-18 16:28:11,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:28:11,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494825603] [2022-03-18 16:28:11,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494825603] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:28:11,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:28:11,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:28:11,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473360513] [2022-03-18 16:28:11,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:28:11,453 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:28:11,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:28:11,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:28:11,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:28:11,454 INFO L87 Difference]: Start difference. First operand 625 states and 926 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) [2022-03-18 16:28:13,008 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:28:15,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:28:17,046 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:28:17,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:28:17,271 INFO L93 Difference]: Finished difference Result 1226 states and 1825 transitions. [2022-03-18 16:28:17,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:28:17,271 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 115 [2022-03-18 16:28:17,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:28:17,273 INFO L225 Difference]: With dead ends: 1226 [2022-03-18 16:28:17,273 INFO L226 Difference]: Without dead ends: 627 [2022-03-18 16:28:17,274 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:28:17,274 INFO L912 BasicCegarLoop]: 201 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-18 16:28:17,274 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 386 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 214 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-03-18 16:28:17,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2022-03-18 16:28:17,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 627. [2022-03-18 16:28:17,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 622 states have (on average 1.4855305466237942) internal successors, (924), 622 states have internal predecessors, (924), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:17,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 928 transitions. [2022-03-18 16:28:17,288 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 928 transitions. Word has length 115 [2022-03-18 16:28:17,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:28:17,288 INFO L478 AbstractCegarLoop]: Abstraction has 627 states and 928 transitions. [2022-03-18 16:28:17,289 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) [2022-03-18 16:28:17,289 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 928 transitions. [2022-03-18 16:28:17,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-18 16:28:17,290 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:28:17,290 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:28:17,290 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-18 16:28:17,290 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:28:17,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:28:17,291 INFO L85 PathProgramCache]: Analyzing trace with hash -489530676, now seen corresponding path program 1 times [2022-03-18 16:28:17,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:28:17,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615960326] [2022-03-18 16:28:17,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:28:17,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:28:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:17,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:28:17,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:17,410 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-18 16:28:17,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:28:17,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615960326] [2022-03-18 16:28:17,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615960326] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:28:17,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:28:17,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:28:17,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961535023] [2022-03-18 16:28:17,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:28:17,411 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:28:17,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:28:17,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:28:17,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:28:17,412 INFO L87 Difference]: Start difference. First operand 627 states and 928 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:19,421 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:28:19,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:28:19,816 INFO L93 Difference]: Finished difference Result 1493 states and 2230 transitions. [2022-03-18 16:28:19,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:28:19,816 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-03-18 16:28:19,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:28:19,818 INFO L225 Difference]: With dead ends: 1493 [2022-03-18 16:28:19,819 INFO L226 Difference]: Without dead ends: 894 [2022-03-18 16:28:19,820 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:28:19,820 INFO L912 BasicCegarLoop]: 369 mSDtfsCounter, 134 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:28:19,820 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 563 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 389 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:28:19,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2022-03-18 16:28:19,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 894. [2022-03-18 16:28:19,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 889 states have (on average 1.4904386951631046) internal successors, (1325), 889 states have internal predecessors, (1325), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:19,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1329 transitions. [2022-03-18 16:28:19,832 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1329 transitions. Word has length 132 [2022-03-18 16:28:19,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:28:19,833 INFO L478 AbstractCegarLoop]: Abstraction has 894 states and 1329 transitions. [2022-03-18 16:28:19,833 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:19,833 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1329 transitions. [2022-03-18 16:28:19,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-03-18 16:28:19,834 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:28:19,834 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:28:19,834 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-18 16:28:19,835 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:28:19,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:28:19,835 INFO L85 PathProgramCache]: Analyzing trace with hash -240324177, now seen corresponding path program 1 times [2022-03-18 16:28:19,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:28:19,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401430707] [2022-03-18 16:28:19,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:28:19,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:28:19,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:19,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:28:19,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:19,936 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-03-18 16:28:19,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:28:19,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401430707] [2022-03-18 16:28:19,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401430707] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:28:19,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:28:19,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:28:19,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195860180] [2022-03-18 16:28:19,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:28:19,936 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:28:19,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:28:19,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:28:19,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:28:19,937 INFO L87 Difference]: Start difference. First operand 894 states and 1329 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:21,944 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:28:22,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:28:22,375 INFO L93 Difference]: Finished difference Result 1982 states and 2954 transitions. [2022-03-18 16:28:22,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:28:22,375 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 178 [2022-03-18 16:28:22,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:28:22,378 INFO L225 Difference]: With dead ends: 1982 [2022-03-18 16:28:22,378 INFO L226 Difference]: Without dead ends: 1116 [2022-03-18 16:28:22,380 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:28:22,380 INFO L912 BasicCegarLoop]: 144 mSDtfsCounter, 117 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:28:22,380 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 385 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:28:22,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2022-03-18 16:28:22,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 902. [2022-03-18 16:28:22,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 897 states have (on average 1.483835005574136) internal successors, (1331), 897 states have internal predecessors, (1331), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:22,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1335 transitions. [2022-03-18 16:28:22,405 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1335 transitions. Word has length 178 [2022-03-18 16:28:22,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:28:22,406 INFO L478 AbstractCegarLoop]: Abstraction has 902 states and 1335 transitions. [2022-03-18 16:28:22,406 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:22,406 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1335 transitions. [2022-03-18 16:28:22,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-03-18 16:28:22,407 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:28:22,407 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:28:22,408 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-18 16:28:22,408 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:28:22,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:28:22,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1536731688, now seen corresponding path program 1 times [2022-03-18 16:28:22,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:28:22,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522108482] [2022-03-18 16:28:22,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:28:22,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:28:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:22,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:28:22,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:22,498 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-03-18 16:28:22,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:28:22,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522108482] [2022-03-18 16:28:22,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522108482] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:28:22,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:28:22,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:28:22,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426141681] [2022-03-18 16:28:22,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:28:22,499 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:28:22,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:28:22,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:28:22,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:28:22,500 INFO L87 Difference]: Start difference. First operand 902 states and 1335 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:24,498 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:28:26,522 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:28:28,543 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:28:30,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:28:30,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:28:30,953 INFO L93 Difference]: Finished difference Result 1990 states and 2950 transitions. [2022-03-18 16:28:30,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:28:30,953 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 179 [2022-03-18 16:28:30,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:28:30,956 INFO L225 Difference]: With dead ends: 1990 [2022-03-18 16:28:30,956 INFO L226 Difference]: Without dead ends: 1116 [2022-03-18 16:28:30,957 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:28:30,958 INFO L912 BasicCegarLoop]: 120 mSDtfsCounter, 116 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 56 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:28:30,958 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 338 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 450 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2022-03-18 16:28:30,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2022-03-18 16:28:30,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 904. [2022-03-18 16:28:30,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904 states, 899 states have (on average 1.4738598442714126) internal successors, (1325), 899 states have internal predecessors, (1325), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:30,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1329 transitions. [2022-03-18 16:28:30,971 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1329 transitions. Word has length 179 [2022-03-18 16:28:30,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:28:30,971 INFO L478 AbstractCegarLoop]: Abstraction has 904 states and 1329 transitions. [2022-03-18 16:28:30,971 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:30,971 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1329 transitions. [2022-03-18 16:28:30,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-03-18 16:28:30,973 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:28:30,973 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:28:30,973 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-18 16:28:30,973 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:28:30,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:28:30,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1961590618, now seen corresponding path program 1 times [2022-03-18 16:28:30,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:28:30,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071925087] [2022-03-18 16:28:30,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:28:30,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:28:31,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:31,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:28:31,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:31,108 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 234 proven. 33 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-03-18 16:28:31,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:28:31,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071925087] [2022-03-18 16:28:31,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071925087] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:28:31,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [794489607] [2022-03-18 16:28:31,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:28:31,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:28:31,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:28:31,110 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 16:28:31,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-18 16:28:31,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:31,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 16 conjunts are in the unsatisfiable core [2022-03-18 16:28:31,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:28:31,840 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:28:31,841 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 16:28:31,886 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 16:28:31,886 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:28:31,980 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:28:31,980 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 16:28:32,009 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:28:32,107 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 242 proven. 30 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-03-18 16:28:32,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 16:28:32,331 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 245 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-03-18 16:28:32,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [794489607] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-18 16:28:32,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-18 16:28:32,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 5] total 10 [2022-03-18 16:28:32,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765917091] [2022-03-18 16:28:32,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:28:32,332 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:28:32,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:28:32,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:28:32,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-18 16:28:32,333 INFO L87 Difference]: Start difference. First operand 904 states and 1329 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:33,796 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:28:34,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:28:34,081 INFO L93 Difference]: Finished difference Result 2121 states and 3144 transitions. [2022-03-18 16:28:34,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:28:34,082 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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 195 [2022-03-18 16:28:34,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:28:34,084 INFO L225 Difference]: With dead ends: 2121 [2022-03-18 16:28:34,084 INFO L226 Difference]: Without dead ends: 1245 [2022-03-18 16:28:34,085 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-18 16:28:34,086 INFO L912 BasicCegarLoop]: 139 mSDtfsCounter, 111 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-18 16:28:34,086 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 379 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-18 16:28:34,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states. [2022-03-18 16:28:34,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 961. [2022-03-18 16:28:34,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 961 states, 956 states have (on average 1.4497907949790796) internal successors, (1386), 956 states have internal predecessors, (1386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:34,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1390 transitions. [2022-03-18 16:28:34,101 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1390 transitions. Word has length 195 [2022-03-18 16:28:34,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:28:34,102 INFO L478 AbstractCegarLoop]: Abstraction has 961 states and 1390 transitions. [2022-03-18 16:28:34,102 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:34,102 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1390 transitions. [2022-03-18 16:28:34,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-03-18 16:28:34,103 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:28:34,104 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:28:34,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-18 16:28:34,319 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,SelfDestructingSolverStorable28 [2022-03-18 16:28:34,319 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:28:34,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:28:34,320 INFO L85 PathProgramCache]: Analyzing trace with hash 880820054, now seen corresponding path program 1 times [2022-03-18 16:28:34,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:28:34,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608064911] [2022-03-18 16:28:34,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:28:34,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:28:34,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:34,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:28:34,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:34,412 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-03-18 16:28:34,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:28:34,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608064911] [2022-03-18 16:28:34,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608064911] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:28:34,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:28:34,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:28:34,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723685251] [2022-03-18 16:28:34,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:28:34,413 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:28:34,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:28:34,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:28:34,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:28:34,413 INFO L87 Difference]: Start difference. First operand 961 states and 1390 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:36,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:28:36,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:28:36,921 INFO L93 Difference]: Finished difference Result 2013 states and 2928 transitions. [2022-03-18 16:28:36,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:28:36,921 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 196 [2022-03-18 16:28:36,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:28:36,924 INFO L225 Difference]: With dead ends: 2013 [2022-03-18 16:28:36,924 INFO L226 Difference]: Without dead ends: 1080 [2022-03-18 16:28:36,925 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:28:36,926 INFO L912 BasicCegarLoop]: 255 mSDtfsCounter, 84 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-18 16:28:36,928 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 612 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 576 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-18 16:28:36,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2022-03-18 16:28:36,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 961. [2022-03-18 16:28:36,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 961 states, 956 states have (on average 1.4476987447698744) internal successors, (1384), 956 states have internal predecessors, (1384), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:36,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1388 transitions. [2022-03-18 16:28:36,942 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1388 transitions. Word has length 196 [2022-03-18 16:28:36,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:28:36,942 INFO L478 AbstractCegarLoop]: Abstraction has 961 states and 1388 transitions. [2022-03-18 16:28:36,943 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:36,943 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1388 transitions. [2022-03-18 16:28:36,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-18 16:28:36,944 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:28:36,944 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:28:36,944 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-18 16:28:36,945 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:28:36,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:28:36,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1180183199, now seen corresponding path program 1 times [2022-03-18 16:28:36,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:28:36,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956842897] [2022-03-18 16:28:36,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:28:36,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:28:37,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:37,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:28:37,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:37,063 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 255 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-03-18 16:28:37,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:28:37,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956842897] [2022-03-18 16:28:37,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956842897] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:28:37,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:28:37,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:28:37,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118715607] [2022-03-18 16:28:37,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:28:37,063 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:28:37,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:28:37,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:28:37,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:28:37,064 INFO L87 Difference]: Start difference. First operand 961 states and 1388 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:39,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:28:39,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:28:39,523 INFO L93 Difference]: Finished difference Result 2006 states and 2916 transitions. [2022-03-18 16:28:39,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:28:39,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 197 [2022-03-18 16:28:39,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:28:39,526 INFO L225 Difference]: With dead ends: 2006 [2022-03-18 16:28:39,526 INFO L226 Difference]: Without dead ends: 1073 [2022-03-18 16:28:39,527 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:28:39,527 INFO L912 BasicCegarLoop]: 252 mSDtfsCounter, 80 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:28:39,527 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 606 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 566 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:28:39,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2022-03-18 16:28:39,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 961. [2022-03-18 16:28:39,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 961 states, 956 states have (on average 1.4456066945606694) internal successors, (1382), 956 states have internal predecessors, (1382), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:39,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1386 transitions. [2022-03-18 16:28:39,540 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1386 transitions. Word has length 197 [2022-03-18 16:28:39,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:28:39,541 INFO L478 AbstractCegarLoop]: Abstraction has 961 states and 1386 transitions. [2022-03-18 16:28:39,541 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:39,541 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1386 transitions. [2022-03-18 16:28:39,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-03-18 16:28:39,542 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:28:39,543 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:28:39,543 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-18 16:28:39,543 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:28:39,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:28:39,543 INFO L85 PathProgramCache]: Analyzing trace with hash 66723836, now seen corresponding path program 1 times [2022-03-18 16:28:39,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:28:39,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483495830] [2022-03-18 16:28:39,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:28:39,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:28:39,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:39,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:28:39,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:39,647 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 279 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-03-18 16:28:39,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:28:39,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483495830] [2022-03-18 16:28:39,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483495830] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:28:39,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:28:39,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:28:39,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259692630] [2022-03-18 16:28:39,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:28:39,648 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:28:39,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:28:39,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:28:39,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:28:39,648 INFO L87 Difference]: Start difference. First operand 961 states and 1386 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:41,656 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:28:42,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:28:42,091 INFO L93 Difference]: Finished difference Result 2000 states and 2904 transitions. [2022-03-18 16:28:42,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:28:42,092 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 207 [2022-03-18 16:28:42,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:28:42,094 INFO L225 Difference]: With dead ends: 2000 [2022-03-18 16:28:42,094 INFO L226 Difference]: Without dead ends: 1067 [2022-03-18 16:28:42,095 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:28:42,095 INFO L912 BasicCegarLoop]: 250 mSDtfsCounter, 67 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:28:42,095 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 602 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 554 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:28:42,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2022-03-18 16:28:42,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 979. [2022-03-18 16:28:42,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 974 states have (on average 1.4537987679671458) internal successors, (1416), 974 states have internal predecessors, (1416), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:42,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1420 transitions. [2022-03-18 16:28:42,108 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1420 transitions. Word has length 207 [2022-03-18 16:28:42,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:28:42,108 INFO L478 AbstractCegarLoop]: Abstraction has 979 states and 1420 transitions. [2022-03-18 16:28:42,108 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:42,108 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1420 transitions. [2022-03-18 16:28:42,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-03-18 16:28:42,110 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:28:42,110 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:28:42,110 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-18 16:28:42,110 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:28:42,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:28:42,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1080131714, now seen corresponding path program 2 times [2022-03-18 16:28:42,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:28:42,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895299975] [2022-03-18 16:28:42,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:28:42,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:28:42,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:42,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:28:42,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:42,203 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2022-03-18 16:28:42,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:28:42,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895299975] [2022-03-18 16:28:42,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895299975] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:28:42,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:28:42,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:28:42,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810830826] [2022-03-18 16:28:42,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:28:42,204 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:28:42,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:28:42,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:28:42,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:28:42,205 INFO L87 Difference]: Start difference. First operand 979 states and 1420 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:44,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:28:44,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:28:44,659 INFO L93 Difference]: Finished difference Result 2018 states and 2936 transitions. [2022-03-18 16:28:44,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:28:44,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 218 [2022-03-18 16:28:44,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:28:44,662 INFO L225 Difference]: With dead ends: 2018 [2022-03-18 16:28:44,662 INFO L226 Difference]: Without dead ends: 1067 [2022-03-18 16:28:44,663 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:28:44,664 INFO L912 BasicCegarLoop]: 249 mSDtfsCounter, 74 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:28:44,664 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 600 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 553 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:28:44,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2022-03-18 16:28:44,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 979. [2022-03-18 16:28:44,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 974 states have (on average 1.4517453798767967) internal successors, (1414), 974 states have internal predecessors, (1414), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:44,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1418 transitions. [2022-03-18 16:28:44,677 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1418 transitions. Word has length 218 [2022-03-18 16:28:44,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:28:44,677 INFO L478 AbstractCegarLoop]: Abstraction has 979 states and 1418 transitions. [2022-03-18 16:28:44,678 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:44,678 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1418 transitions. [2022-03-18 16:28:44,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-03-18 16:28:44,679 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:28:44,679 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:28:44,680 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-18 16:28:44,680 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:28:44,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:28:44,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1852856135, now seen corresponding path program 1 times [2022-03-18 16:28:44,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:28:44,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981791886] [2022-03-18 16:28:44,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:28:44,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:28:44,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:44,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:28:44,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:44,781 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2022-03-18 16:28:44,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:28:44,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981791886] [2022-03-18 16:28:44,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981791886] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:28:44,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:28:44,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:28:44,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290053354] [2022-03-18 16:28:44,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:28:44,782 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:28:44,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:28:44,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:28:44,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:28:44,783 INFO L87 Difference]: Start difference. First operand 979 states and 1418 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:46,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:28:47,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:28:47,216 INFO L93 Difference]: Finished difference Result 2010 states and 2922 transitions. [2022-03-18 16:28:47,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:28:47,217 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 219 [2022-03-18 16:28:47,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:28:47,219 INFO L225 Difference]: With dead ends: 2010 [2022-03-18 16:28:47,219 INFO L226 Difference]: Without dead ends: 1059 [2022-03-18 16:28:47,220 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:28:47,225 INFO L912 BasicCegarLoop]: 245 mSDtfsCounter, 68 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:28:47,225 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 592 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 542 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:28:47,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2022-03-18 16:28:47,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 979. [2022-03-18 16:28:47,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 974 states have (on average 1.4496919917864477) internal successors, (1412), 974 states have internal predecessors, (1412), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:47,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1416 transitions. [2022-03-18 16:28:47,240 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1416 transitions. Word has length 219 [2022-03-18 16:28:47,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:28:47,240 INFO L478 AbstractCegarLoop]: Abstraction has 979 states and 1416 transitions. [2022-03-18 16:28:47,240 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:47,240 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1416 transitions. [2022-03-18 16:28:47,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-03-18 16:28:47,242 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:28:47,242 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:28:47,242 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-18 16:28:47,242 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:28:47,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:28:47,243 INFO L85 PathProgramCache]: Analyzing trace with hash -405731861, now seen corresponding path program 1 times [2022-03-18 16:28:47,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:28:47,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449723475] [2022-03-18 16:28:47,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:28:47,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:28:47,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:47,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:28:47,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:47,367 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-03-18 16:28:47,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:28:47,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449723475] [2022-03-18 16:28:47,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449723475] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:28:47,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:28:47,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:28:47,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839187555] [2022-03-18 16:28:47,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:28:47,368 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:28:47,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:28:47,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:28:47,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:28:47,368 INFO L87 Difference]: Start difference. First operand 979 states and 1416 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:49,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:28:49,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:28:49,793 INFO L93 Difference]: Finished difference Result 2010 states and 2918 transitions. [2022-03-18 16:28:49,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:28:49,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 221 [2022-03-18 16:28:49,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:28:49,796 INFO L225 Difference]: With dead ends: 2010 [2022-03-18 16:28:49,796 INFO L226 Difference]: Without dead ends: 1059 [2022-03-18 16:28:49,797 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:28:49,797 INFO L912 BasicCegarLoop]: 244 mSDtfsCounter, 64 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:28:49,798 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 590 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 541 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:28:49,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2022-03-18 16:28:49,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 979. [2022-03-18 16:28:49,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 974 states have (on average 1.4476386036960986) internal successors, (1410), 974 states have internal predecessors, (1410), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:49,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1414 transitions. [2022-03-18 16:28:49,811 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1414 transitions. Word has length 221 [2022-03-18 16:28:49,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:28:49,811 INFO L478 AbstractCegarLoop]: Abstraction has 979 states and 1414 transitions. [2022-03-18 16:28:49,811 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:49,811 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1414 transitions. [2022-03-18 16:28:49,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-03-18 16:28:49,813 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:28:49,813 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:28:49,813 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-18 16:28:49,813 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:28:49,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:28:49,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1771801666, now seen corresponding path program 1 times [2022-03-18 16:28:49,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:28:49,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232434318] [2022-03-18 16:28:49,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:28:49,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:28:49,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:49,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:28:49,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:49,933 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 332 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-03-18 16:28:49,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:28:49,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232434318] [2022-03-18 16:28:49,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232434318] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:28:49,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:28:49,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:28:49,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850366922] [2022-03-18 16:28:49,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:28:49,936 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:28:49,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:28:49,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:28:49,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:28:49,937 INFO L87 Difference]: Start difference. First operand 979 states and 1414 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:52,674 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:28:54,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:28:56,720 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:28:57,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:28:57,132 INFO L93 Difference]: Finished difference Result 1994 states and 2888 transitions. [2022-03-18 16:28:57,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:28:57,132 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 222 [2022-03-18 16:28:57,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:28:57,135 INFO L225 Difference]: With dead ends: 1994 [2022-03-18 16:28:57,135 INFO L226 Difference]: Without dead ends: 1043 [2022-03-18 16:28:57,136 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:28:57,136 INFO L912 BasicCegarLoop]: 239 mSDtfsCounter, 53 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:28:57,136 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 580 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 506 Invalid, 3 Unknown, 0 Unchecked, 7.2s Time] [2022-03-18 16:28:57,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2022-03-18 16:28:57,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 979. [2022-03-18 16:28:57,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 974 states have (on average 1.4455852156057496) internal successors, (1408), 974 states have internal predecessors, (1408), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:57,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1412 transitions. [2022-03-18 16:28:57,150 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1412 transitions. Word has length 222 [2022-03-18 16:28:57,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:28:57,150 INFO L478 AbstractCegarLoop]: Abstraction has 979 states and 1412 transitions. [2022-03-18 16:28:57,150 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:57,150 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1412 transitions. [2022-03-18 16:28:57,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-18 16:28:57,152 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:28:57,152 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:28:57,152 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-18 16:28:57,152 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:28:57,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:28:57,152 INFO L85 PathProgramCache]: Analyzing trace with hash 755668997, now seen corresponding path program 1 times [2022-03-18 16:28:57,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:28:57,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339708085] [2022-03-18 16:28:57,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:28:57,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:28:57,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:57,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:28:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:57,253 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 334 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-03-18 16:28:57,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:28:57,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339708085] [2022-03-18 16:28:57,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339708085] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:28:57,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:28:57,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:28:57,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317495802] [2022-03-18 16:28:57,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:28:57,254 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:28:57,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:28:57,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:28:57,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:28:57,255 INFO L87 Difference]: Start difference. First operand 979 states and 1412 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:59,268 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:28:59,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:28:59,656 INFO L93 Difference]: Finished difference Result 1994 states and 2884 transitions. [2022-03-18 16:28:59,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:28:59,657 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 223 [2022-03-18 16:28:59,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:28:59,659 INFO L225 Difference]: With dead ends: 1994 [2022-03-18 16:28:59,660 INFO L226 Difference]: Without dead ends: 1043 [2022-03-18 16:28:59,661 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:28:59,661 INFO L912 BasicCegarLoop]: 238 mSDtfsCounter, 51 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:28:59,661 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 578 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 504 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:28:59,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2022-03-18 16:28:59,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 979. [2022-03-18 16:28:59,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 974 states have (on average 1.4435318275154003) internal successors, (1406), 974 states have internal predecessors, (1406), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:59,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1410 transitions. [2022-03-18 16:28:59,675 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1410 transitions. Word has length 223 [2022-03-18 16:28:59,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:28:59,675 INFO L478 AbstractCegarLoop]: Abstraction has 979 states and 1410 transitions. [2022-03-18 16:28:59,675 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:59,675 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1410 transitions. [2022-03-18 16:28:59,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-03-18 16:28:59,677 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:28:59,677 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:28:59,677 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-18 16:28:59,677 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:28:59,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:28:59,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1518092292, now seen corresponding path program 1 times [2022-03-18 16:28:59,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:28:59,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263133090] [2022-03-18 16:28:59,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:28:59,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:28:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:59,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:28:59,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:59,791 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 336 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-03-18 16:28:59,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:28:59,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263133090] [2022-03-18 16:28:59,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263133090] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:28:59,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:28:59,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:28:59,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049144149] [2022-03-18 16:28:59,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:28:59,792 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:28:59,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:28:59,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:28:59,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:28:59,792 INFO L87 Difference]: Start difference. First operand 979 states and 1410 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:01,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:02,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:29:02,167 INFO L93 Difference]: Finished difference Result 1990 states and 2876 transitions. [2022-03-18 16:29:02,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:29:02,168 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 224 [2022-03-18 16:29:02,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:29:02,170 INFO L225 Difference]: With dead ends: 1990 [2022-03-18 16:29:02,170 INFO L226 Difference]: Without dead ends: 1039 [2022-03-18 16:29:02,171 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:29:02,172 INFO L912 BasicCegarLoop]: 236 mSDtfsCounter, 48 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:29:02,172 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 574 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 498 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:29:02,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2022-03-18 16:29:02,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 979. [2022-03-18 16:29:02,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 974 states have (on average 1.4414784394250513) internal successors, (1404), 974 states have internal predecessors, (1404), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:02,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1408 transitions. [2022-03-18 16:29:02,187 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1408 transitions. Word has length 224 [2022-03-18 16:29:02,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:29:02,187 INFO L478 AbstractCegarLoop]: Abstraction has 979 states and 1408 transitions. [2022-03-18 16:29:02,187 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:02,187 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1408 transitions. [2022-03-18 16:29:02,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-03-18 16:29:02,189 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:29:02,189 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:29:02,189 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-18 16:29:02,189 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:29:02,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:29:02,189 INFO L85 PathProgramCache]: Analyzing trace with hash -671915853, now seen corresponding path program 1 times [2022-03-18 16:29:02,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:29:02,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620214345] [2022-03-18 16:29:02,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:29:02,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:29:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:02,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:29:02,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:02,312 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 326 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-03-18 16:29:02,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:29:02,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620214345] [2022-03-18 16:29:02,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620214345] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:29:02,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:29:02,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:29:02,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789600353] [2022-03-18 16:29:02,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:29:02,312 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:29:02,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:29:02,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:29:02,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:29:02,313 INFO L87 Difference]: Start difference. First operand 979 states and 1408 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:04,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:04,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:29:04,737 INFO L93 Difference]: Finished difference Result 2253 states and 3263 transitions. [2022-03-18 16:29:04,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:29:04,737 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 224 [2022-03-18 16:29:04,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:29:04,740 INFO L225 Difference]: With dead ends: 2253 [2022-03-18 16:29:04,740 INFO L226 Difference]: Without dead ends: 1302 [2022-03-18 16:29:04,742 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:29:04,742 INFO L912 BasicCegarLoop]: 130 mSDtfsCounter, 112 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:29:04,742 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 358 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 460 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:29:04,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2022-03-18 16:29:04,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1057. [2022-03-18 16:29:04,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 1052 states have (on average 1.429657794676806) internal successors, (1504), 1052 states have internal predecessors, (1504), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:04,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1508 transitions. [2022-03-18 16:29:04,759 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1508 transitions. Word has length 224 [2022-03-18 16:29:04,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:29:04,759 INFO L478 AbstractCegarLoop]: Abstraction has 1057 states and 1508 transitions. [2022-03-18 16:29:04,759 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:04,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1508 transitions. [2022-03-18 16:29:04,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-03-18 16:29:04,761 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:29:04,761 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:29:04,761 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-18 16:29:04,761 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:29:04,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:29:04,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1983364700, now seen corresponding path program 1 times [2022-03-18 16:29:04,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:29:04,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162240828] [2022-03-18 16:29:04,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:29:04,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:29:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:04,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:29:04,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:04,867 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 328 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-03-18 16:29:04,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:29:04,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162240828] [2022-03-18 16:29:04,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162240828] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:29:04,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:29:04,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:29:04,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665882766] [2022-03-18 16:29:04,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:29:04,868 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:29:04,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:29:04,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:29:04,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:29:04,868 INFO L87 Difference]: Start difference. First operand 1057 states and 1508 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:06,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:07,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:29:07,297 INFO L93 Difference]: Finished difference Result 2280 states and 3256 transitions. [2022-03-18 16:29:07,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:29:07,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 225 [2022-03-18 16:29:07,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:29:07,300 INFO L225 Difference]: With dead ends: 2280 [2022-03-18 16:29:07,301 INFO L226 Difference]: Without dead ends: 1251 [2022-03-18 16:29:07,302 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:29:07,302 INFO L912 BasicCegarLoop]: 120 mSDtfsCounter, 111 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:29:07,302 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 338 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 449 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:29:07,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2022-03-18 16:29:07,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 1057. [2022-03-18 16:29:07,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 1052 states have (on average 1.4220532319391634) internal successors, (1496), 1052 states have internal predecessors, (1496), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:07,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1500 transitions. [2022-03-18 16:29:07,318 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1500 transitions. Word has length 225 [2022-03-18 16:29:07,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:29:07,318 INFO L478 AbstractCegarLoop]: Abstraction has 1057 states and 1500 transitions. [2022-03-18 16:29:07,318 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:07,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1500 transitions. [2022-03-18 16:29:07,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-18 16:29:07,320 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:29:07,320 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:29:07,320 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-18 16:29:07,320 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:29:07,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:29:07,321 INFO L85 PathProgramCache]: Analyzing trace with hash 99753248, now seen corresponding path program 1 times [2022-03-18 16:29:07,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:29:07,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972714931] [2022-03-18 16:29:07,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:29:07,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:29:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:07,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:29:07,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:07,426 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 340 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-03-18 16:29:07,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:29:07,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972714931] [2022-03-18 16:29:07,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972714931] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:29:07,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:29:07,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:29:07,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883898452] [2022-03-18 16:29:07,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:29:07,427 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:29:07,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:29:07,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:29:07,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:29:07,428 INFO L87 Difference]: Start difference. First operand 1057 states and 1500 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:08,603 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:10,618 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:12,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:14,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:15,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:29:15,063 INFO L93 Difference]: Finished difference Result 2409 states and 3441 transitions. [2022-03-18 16:29:15,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:29:15,063 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 227 [2022-03-18 16:29:15,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:29:15,066 INFO L225 Difference]: With dead ends: 2409 [2022-03-18 16:29:15,066 INFO L226 Difference]: Without dead ends: 1380 [2022-03-18 16:29:15,067 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:29:15,068 INFO L912 BasicCegarLoop]: 120 mSDtfsCounter, 104 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 54 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-03-18 16:29:15,068 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 338 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 451 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2022-03-18 16:29:15,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2022-03-18 16:29:15,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1158. [2022-03-18 16:29:15,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1158 states, 1153 states have (on average 1.4189071986123156) internal successors, (1636), 1153 states have internal predecessors, (1636), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:15,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1640 transitions. [2022-03-18 16:29:15,096 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1640 transitions. Word has length 227 [2022-03-18 16:29:15,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:29:15,097 INFO L478 AbstractCegarLoop]: Abstraction has 1158 states and 1640 transitions. [2022-03-18 16:29:15,097 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:15,097 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1640 transitions. [2022-03-18 16:29:15,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-03-18 16:29:15,099 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:29:15,099 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:29:15,099 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-18 16:29:15,099 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:29:15,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:29:15,099 INFO L85 PathProgramCache]: Analyzing trace with hash 2135103868, now seen corresponding path program 1 times [2022-03-18 16:29:15,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:29:15,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405001112] [2022-03-18 16:29:15,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:29:15,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:29:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:15,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:29:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:15,210 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 342 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-03-18 16:29:15,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:29:15,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405001112] [2022-03-18 16:29:15,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405001112] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:29:15,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:29:15,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:29:15,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222285624] [2022-03-18 16:29:15,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:29:15,214 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:29:15,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:29:15,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:29:15,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:29:15,214 INFO L87 Difference]: Start difference. First operand 1158 states and 1640 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:17,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:19,052 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:21,073 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:21,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:29:21,433 INFO L93 Difference]: Finished difference Result 2334 states and 3316 transitions. [2022-03-18 16:29:21,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:29:21,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 228 [2022-03-18 16:29:21,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:29:21,437 INFO L225 Difference]: With dead ends: 2334 [2022-03-18 16:29:21,437 INFO L226 Difference]: Without dead ends: 1204 [2022-03-18 16:29:21,438 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:29:21,438 INFO L912 BasicCegarLoop]: 229 mSDtfsCounter, 37 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:29:21,438 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 560 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 475 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-03-18 16:29:21,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1204 states. [2022-03-18 16:29:21,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1204 to 1160. [2022-03-18 16:29:21,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1160 states, 1155 states have (on average 1.4181818181818182) internal successors, (1638), 1155 states have internal predecessors, (1638), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:21,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1642 transitions. [2022-03-18 16:29:21,455 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1642 transitions. Word has length 228 [2022-03-18 16:29:21,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:29:21,456 INFO L478 AbstractCegarLoop]: Abstraction has 1160 states and 1642 transitions. [2022-03-18 16:29:21,456 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:21,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1642 transitions. [2022-03-18 16:29:21,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-03-18 16:29:21,458 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:29:21,458 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:29:21,458 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-18 16:29:21,458 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:29:21,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:29:21,458 INFO L85 PathProgramCache]: Analyzing trace with hash -928236046, now seen corresponding path program 1 times [2022-03-18 16:29:21,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:29:21,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170985493] [2022-03-18 16:29:21,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:29:21,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:29:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:21,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:29:21,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:21,592 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-03-18 16:29:21,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:29:21,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170985493] [2022-03-18 16:29:21,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170985493] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:29:21,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:29:21,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:29:21,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552243093] [2022-03-18 16:29:21,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:29:21,593 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:29:21,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:29:21,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:29:21,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:29:21,594 INFO L87 Difference]: Start difference. First operand 1160 states and 1642 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:23,601 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:24,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:29:24,001 INFO L93 Difference]: Finished difference Result 2611 states and 3714 transitions. [2022-03-18 16:29:24,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:29:24,001 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 228 [2022-03-18 16:29:24,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:29:24,005 INFO L225 Difference]: With dead ends: 2611 [2022-03-18 16:29:24,009 INFO L226 Difference]: Without dead ends: 1479 [2022-03-18 16:29:24,011 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:29:24,011 INFO L912 BasicCegarLoop]: 121 mSDtfsCounter, 102 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:29:24,011 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 340 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 451 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:29:24,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2022-03-18 16:29:24,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 1267. [2022-03-18 16:29:24,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1267 states, 1262 states have (on average 1.4160063391442155) internal successors, (1787), 1262 states have internal predecessors, (1787), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:24,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1267 states to 1267 states and 1791 transitions. [2022-03-18 16:29:24,037 INFO L78 Accepts]: Start accepts. Automaton has 1267 states and 1791 transitions. Word has length 228 [2022-03-18 16:29:24,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:29:24,037 INFO L478 AbstractCegarLoop]: Abstraction has 1267 states and 1791 transitions. [2022-03-18 16:29:24,037 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:24,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1267 states and 1791 transitions. [2022-03-18 16:29:24,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-03-18 16:29:24,039 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:29:24,039 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:29:24,039 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-18 16:29:24,039 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:29:24,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:29:24,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1196316554, now seen corresponding path program 1 times [2022-03-18 16:29:24,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:29:24,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737281439] [2022-03-18 16:29:24,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:29:24,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:29:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:24,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:29:24,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:24,157 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 346 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-03-18 16:29:24,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:29:24,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737281439] [2022-03-18 16:29:24,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737281439] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:29:24,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:29:24,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:29:24,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038797409] [2022-03-18 16:29:24,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:29:24,158 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:29:24,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:29:24,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:29:24,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:29:24,158 INFO L87 Difference]: Start difference. First operand 1267 states and 1791 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:25,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:27,931 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:29,949 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:31,974 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:32,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:29:32,366 INFO L93 Difference]: Finished difference Result 2694 states and 3810 transitions. [2022-03-18 16:29:32,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:29:32,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 229 [2022-03-18 16:29:32,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:29:32,369 INFO L225 Difference]: With dead ends: 2694 [2022-03-18 16:29:32,369 INFO L226 Difference]: Without dead ends: 1455 [2022-03-18 16:29:32,370 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:29:32,370 INFO L912 BasicCegarLoop]: 124 mSDtfsCounter, 101 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 55 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:29:32,371 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 346 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 454 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-03-18 16:29:32,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2022-03-18 16:29:32,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1269. [2022-03-18 16:29:32,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 1264 states have (on average 1.4106012658227849) internal successors, (1783), 1264 states have internal predecessors, (1783), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:32,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 1787 transitions. [2022-03-18 16:29:32,390 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 1787 transitions. Word has length 229 [2022-03-18 16:29:32,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:29:32,390 INFO L478 AbstractCegarLoop]: Abstraction has 1269 states and 1787 transitions. [2022-03-18 16:29:32,390 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:32,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 1787 transitions. [2022-03-18 16:29:32,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-03-18 16:29:32,392 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:29:32,392 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:29:32,392 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-18 16:29:32,392 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:29:32,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:29:32,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1652080749, now seen corresponding path program 1 times [2022-03-18 16:29:32,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:29:32,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744892722] [2022-03-18 16:29:32,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:29:32,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:29:32,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:32,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:29:32,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:32,528 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 348 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-03-18 16:29:32,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:29:32,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744892722] [2022-03-18 16:29:32,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744892722] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:29:32,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:29:32,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:29:32,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120922432] [2022-03-18 16:29:32,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:29:32,529 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:29:32,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:29:32,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:29:32,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:29:32,530 INFO L87 Difference]: Start difference. First operand 1269 states and 1787 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:34,454 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:36,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:38,497 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:40,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:40,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:29:40,860 INFO L93 Difference]: Finished difference Result 2546 states and 3594 transitions. [2022-03-18 16:29:40,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:29:40,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 230 [2022-03-18 16:29:40,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:29:40,862 INFO L225 Difference]: With dead ends: 2546 [2022-03-18 16:29:40,862 INFO L226 Difference]: Without dead ends: 1305 [2022-03-18 16:29:40,864 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:29:40,864 INFO L912 BasicCegarLoop]: 225 mSDtfsCounter, 30 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:29:40,864 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 552 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 465 Invalid, 3 Unknown, 0 Unchecked, 8.3s Time] [2022-03-18 16:29:40,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2022-03-18 16:29:40,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1271. [2022-03-18 16:29:40,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1271 states, 1266 states have (on average 1.4099526066350712) internal successors, (1785), 1266 states have internal predecessors, (1785), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:40,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 1789 transitions. [2022-03-18 16:29:40,882 INFO L78 Accepts]: Start accepts. Automaton has 1271 states and 1789 transitions. Word has length 230 [2022-03-18 16:29:40,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:29:40,882 INFO L478 AbstractCegarLoop]: Abstraction has 1271 states and 1789 transitions. [2022-03-18 16:29:40,882 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:40,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1271 states and 1789 transitions. [2022-03-18 16:29:40,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-18 16:29:40,884 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:29:40,884 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:29:40,884 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-18 16:29:40,884 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:29:40,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:29:40,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1509657263, now seen corresponding path program 1 times [2022-03-18 16:29:40,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:29:40,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037734887] [2022-03-18 16:29:40,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:29:40,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:29:40,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:40,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:29:40,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:40,996 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-03-18 16:29:40,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:29:40,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037734887] [2022-03-18 16:29:40,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037734887] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:29:40,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:29:40,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:29:40,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180622976] [2022-03-18 16:29:40,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:29:40,997 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:29:40,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:29:40,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:29:40,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:29:40,997 INFO L87 Difference]: Start difference. First operand 1271 states and 1789 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:42,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:44,532 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:46,913 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:47,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:29:47,270 INFO L93 Difference]: Finished difference Result 2544 states and 3590 transitions. [2022-03-18 16:29:47,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:29:47,270 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 231 [2022-03-18 16:29:47,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:29:47,272 INFO L225 Difference]: With dead ends: 2544 [2022-03-18 16:29:47,272 INFO L226 Difference]: Without dead ends: 1301 [2022-03-18 16:29:47,274 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:29:47,274 INFO L912 BasicCegarLoop]: 223 mSDtfsCounter, 27 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:29:47,274 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 548 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 460 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-03-18 16:29:47,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2022-03-18 16:29:47,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 1273. [2022-03-18 16:29:47,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1273 states, 1268 states have (on average 1.4093059936908516) internal successors, (1787), 1268 states have internal predecessors, (1787), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:47,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1273 states to 1273 states and 1791 transitions. [2022-03-18 16:29:47,292 INFO L78 Accepts]: Start accepts. Automaton has 1273 states and 1791 transitions. Word has length 231 [2022-03-18 16:29:47,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:29:47,292 INFO L478 AbstractCegarLoop]: Abstraction has 1273 states and 1791 transitions. [2022-03-18 16:29:47,292 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:47,292 INFO L276 IsEmpty]: Start isEmpty. Operand 1273 states and 1791 transitions. [2022-03-18 16:29:47,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-03-18 16:29:47,294 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:29:47,294 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:29:47,294 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-18 16:29:47,294 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:29:47,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:29:47,294 INFO L85 PathProgramCache]: Analyzing trace with hash -341981116, now seen corresponding path program 1 times [2022-03-18 16:29:47,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:29:47,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511034275] [2022-03-18 16:29:47,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:29:47,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:29:47,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:47,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:29:47,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:47,397 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 352 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-03-18 16:29:47,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:29:47,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511034275] [2022-03-18 16:29:47,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511034275] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:29:47,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:29:47,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:29:47,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046398547] [2022-03-18 16:29:47,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:29:47,398 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:29:47,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:29:47,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:29:47,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:29:47,399 INFO L87 Difference]: Start difference. First operand 1273 states and 1791 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:49,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:49,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:29:49,762 INFO L93 Difference]: Finished difference Result 2546 states and 3590 transitions. [2022-03-18 16:29:49,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:29:49,762 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 234 [2022-03-18 16:29:49,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:29:49,763 INFO L225 Difference]: With dead ends: 2546 [2022-03-18 16:29:49,763 INFO L226 Difference]: Without dead ends: 1301 [2022-03-18 16:29:49,765 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:29:49,765 INFO L912 BasicCegarLoop]: 222 mSDtfsCounter, 25 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:29:49,765 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 546 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:29:49,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2022-03-18 16:29:49,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 1275. [2022-03-18 16:29:49,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1275 states, 1270 states have (on average 1.4086614173228347) internal successors, (1789), 1270 states have internal predecessors, (1789), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:49,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1275 states to 1275 states and 1793 transitions. [2022-03-18 16:29:49,782 INFO L78 Accepts]: Start accepts. Automaton has 1275 states and 1793 transitions. Word has length 234 [2022-03-18 16:29:49,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:29:49,782 INFO L478 AbstractCegarLoop]: Abstraction has 1275 states and 1793 transitions. [2022-03-18 16:29:49,783 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:49,783 INFO L276 IsEmpty]: Start isEmpty. Operand 1275 states and 1793 transitions. [2022-03-18 16:29:49,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-03-18 16:29:49,784 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:29:49,784 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:29:49,784 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-18 16:29:49,785 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:29:49,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:29:49,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1280708984, now seen corresponding path program 1 times [2022-03-18 16:29:49,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:29:49,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835137054] [2022-03-18 16:29:49,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:29:49,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:29:49,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:49,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:29:49,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:49,895 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 354 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-03-18 16:29:49,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:29:49,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835137054] [2022-03-18 16:29:49,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835137054] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:29:49,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:29:49,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:29:49,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083659594] [2022-03-18 16:29:49,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:29:49,896 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:29:49,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:29:49,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:29:49,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:29:49,896 INFO L87 Difference]: Start difference. First operand 1275 states and 1793 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:51,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:52,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:29:52,267 INFO L93 Difference]: Finished difference Result 2542 states and 3582 transitions. [2022-03-18 16:29:52,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:29:52,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 235 [2022-03-18 16:29:52,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:29:52,269 INFO L225 Difference]: With dead ends: 2542 [2022-03-18 16:29:52,269 INFO L226 Difference]: Without dead ends: 1295 [2022-03-18 16:29:52,271 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:29:52,271 INFO L912 BasicCegarLoop]: 220 mSDtfsCounter, 21 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:29:52,271 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 542 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 444 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:29:52,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1295 states. [2022-03-18 16:29:52,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1295 to 1277. [2022-03-18 16:29:52,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1277 states, 1272 states have (on average 1.4080188679245282) internal successors, (1791), 1272 states have internal predecessors, (1791), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:52,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 1795 transitions. [2022-03-18 16:29:52,289 INFO L78 Accepts]: Start accepts. Automaton has 1277 states and 1795 transitions. Word has length 235 [2022-03-18 16:29:52,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:29:52,289 INFO L478 AbstractCegarLoop]: Abstraction has 1277 states and 1795 transitions. [2022-03-18 16:29:52,290 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:52,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1277 states and 1795 transitions. [2022-03-18 16:29:52,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-03-18 16:29:52,291 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:29:52,292 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:29:52,292 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-18 16:29:52,292 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:29:52,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:29:52,292 INFO L85 PathProgramCache]: Analyzing trace with hash 157149966, now seen corresponding path program 1 times [2022-03-18 16:29:52,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:29:52,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246684786] [2022-03-18 16:29:52,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:29:52,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:29:52,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:52,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:29:52,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:52,421 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2022-03-18 16:29:52,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:29:52,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246684786] [2022-03-18 16:29:52,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246684786] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:29:52,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:29:52,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:29:52,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542632524] [2022-03-18 16:29:52,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:29:52,422 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:29:52,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:29:52,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:29:52,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:29:52,422 INFO L87 Difference]: Start difference. First operand 1277 states and 1795 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:54,429 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:54,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:29:54,750 INFO L93 Difference]: Finished difference Result 2554 states and 3593 transitions. [2022-03-18 16:29:54,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:29:54,751 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 239 [2022-03-18 16:29:54,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:29:54,752 INFO L225 Difference]: With dead ends: 2554 [2022-03-18 16:29:54,752 INFO L226 Difference]: Without dead ends: 1305 [2022-03-18 16:29:54,754 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:29:54,754 INFO L912 BasicCegarLoop]: 217 mSDtfsCounter, 21 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:29:54,754 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 538 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 403 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:29:54,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2022-03-18 16:29:54,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1277. [2022-03-18 16:29:54,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1277 states, 1272 states have (on average 1.4056603773584906) internal successors, (1788), 1272 states have internal predecessors, (1788), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:54,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 1792 transitions. [2022-03-18 16:29:54,773 INFO L78 Accepts]: Start accepts. Automaton has 1277 states and 1792 transitions. Word has length 239 [2022-03-18 16:29:54,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:29:54,773 INFO L478 AbstractCegarLoop]: Abstraction has 1277 states and 1792 transitions. [2022-03-18 16:29:54,773 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:54,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1277 states and 1792 transitions. [2022-03-18 16:29:54,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-03-18 16:29:54,775 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:29:54,775 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:29:54,775 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-18 16:29:54,775 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:29:54,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:29:54,776 INFO L85 PathProgramCache]: Analyzing trace with hash -689798477, now seen corresponding path program 1 times [2022-03-18 16:29:54,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:29:54,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740228376] [2022-03-18 16:29:54,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:29:54,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:29:54,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:54,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:29:54,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:54,944 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-03-18 16:29:54,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:29:54,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740228376] [2022-03-18 16:29:54,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740228376] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:29:54,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:29:54,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:29:54,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159977211] [2022-03-18 16:29:54,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:29:54,946 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:29:54,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:29:54,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:29:54,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:29:54,946 INFO L87 Difference]: Start difference. First operand 1277 states and 1792 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) [2022-03-18 16:29:56,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:59,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:01,712 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:02,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:02,081 INFO L93 Difference]: Finished difference Result 2668 states and 3749 transitions. [2022-03-18 16:30:02,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:30:02,081 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 242 [2022-03-18 16:30:02,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:02,083 INFO L225 Difference]: With dead ends: 2668 [2022-03-18 16:30:02,083 INFO L226 Difference]: Without dead ends: 1419 [2022-03-18 16:30:02,084 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:30:02,085 INFO L912 BasicCegarLoop]: 228 mSDtfsCounter, 32 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:02,085 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 559 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 451 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-03-18 16:30:02,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1419 states. [2022-03-18 16:30:02,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1419 to 1367. [2022-03-18 16:30:02,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1367 states, 1362 states have (on average 1.4030837004405285) internal successors, (1911), 1362 states have internal predecessors, (1911), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:02,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1915 transitions. [2022-03-18 16:30:02,104 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1915 transitions. Word has length 242 [2022-03-18 16:30:02,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:02,104 INFO L478 AbstractCegarLoop]: Abstraction has 1367 states and 1915 transitions. [2022-03-18 16:30:02,104 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) [2022-03-18 16:30:02,105 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1915 transitions. [2022-03-18 16:30:02,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-03-18 16:30:02,106 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:02,106 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:30:02,106 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-18 16:30:02,107 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:02,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:02,107 INFO L85 PathProgramCache]: Analyzing trace with hash -554447399, now seen corresponding path program 1 times [2022-03-18 16:30:02,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:02,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815704050] [2022-03-18 16:30:02,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:02,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:02,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:02,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:02,266 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 271 proven. 13 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-03-18 16:30:02,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:02,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815704050] [2022-03-18 16:30:02,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815704050] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:30:02,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970651213] [2022-03-18 16:30:02,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:02,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:30:02,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:30:02,268 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 16:30:02,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-18 16:30:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:03,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 1423 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-18 16:30:03,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:30:03,195 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:30:03,195 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 16:30:03,233 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 16:30:03,233 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:30:03,298 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-18 16:30:03,398 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-18 16:30:03,423 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:30:03,424 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 [2022-03-18 16:30:03,467 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:30:03,520 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 266 proven. 92 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2022-03-18 16:30:03,520 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 16:30:03,779 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-03-18 16:30:03,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1970651213] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-18 16:30:03,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-18 16:30:03,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-03-18 16:30:03,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013345204] [2022-03-18 16:30:03,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:03,780 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:30:03,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:03,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:30:03,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-18 16:30:03,781 INFO L87 Difference]: Start difference. First operand 1367 states and 1915 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:05,788 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:06,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:06,053 INFO L93 Difference]: Finished difference Result 2884 states and 4038 transitions. [2022-03-18 16:30:06,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:30:06,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 244 [2022-03-18 16:30:06,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:06,056 INFO L225 Difference]: With dead ends: 2884 [2022-03-18 16:30:06,056 INFO L226 Difference]: Without dead ends: 1545 [2022-03-18 16:30:06,058 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 490 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-18 16:30:06,063 INFO L912 BasicCegarLoop]: 127 mSDtfsCounter, 107 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:06,063 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 350 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 245 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-18 16:30:06,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1545 states. [2022-03-18 16:30:06,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1545 to 1367. [2022-03-18 16:30:06,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1367 states, 1362 states have (on average 1.394273127753304) internal successors, (1899), 1362 states have internal predecessors, (1899), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:06,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1903 transitions. [2022-03-18 16:30:06,086 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1903 transitions. Word has length 244 [2022-03-18 16:30:06,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:06,086 INFO L478 AbstractCegarLoop]: Abstraction has 1367 states and 1903 transitions. [2022-03-18 16:30:06,086 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:06,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1903 transitions. [2022-03-18 16:30:06,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-03-18 16:30:06,088 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:06,088 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:30:06,116 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-18 16:30:06,293 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 [2022-03-18 16:30:06,293 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:06,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:06,294 INFO L85 PathProgramCache]: Analyzing trace with hash -760759278, now seen corresponding path program 1 times [2022-03-18 16:30:06,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:06,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795025806] [2022-03-18 16:30:06,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:06,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:06,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:06,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:06,428 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 276 proven. 85 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2022-03-18 16:30:06,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:06,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795025806] [2022-03-18 16:30:06,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795025806] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:30:06,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915279173] [2022-03-18 16:30:06,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:06,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:30:06,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:30:06,449 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 16:30:06,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-18 16:30:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:07,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 1426 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-18 16:30:07,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:30:07,299 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:30:07,299 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 16:30:07,334 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 16:30:07,334 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:30:07,393 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-18 16:30:07,509 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-18 16:30:07,521 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:30:07,521 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 [2022-03-18 16:30:07,577 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:30:07,623 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 269 proven. 91 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-03-18 16:30:07,623 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 16:30:07,856 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 275 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-03-18 16:30:07,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915279173] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-18 16:30:07,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-18 16:30:07,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-03-18 16:30:07,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429039845] [2022-03-18 16:30:07,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:07,857 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:30:07,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:07,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:30:07,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-18 16:30:07,858 INFO L87 Difference]: Start difference. First operand 1367 states and 1903 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:09,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:10,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:10,146 INFO L93 Difference]: Finished difference Result 2884 states and 4014 transitions. [2022-03-18 16:30:10,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:30:10,147 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 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 245 [2022-03-18 16:30:10,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:10,149 INFO L225 Difference]: With dead ends: 2884 [2022-03-18 16:30:10,149 INFO L226 Difference]: Without dead ends: 1545 [2022-03-18 16:30:10,150 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 492 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-18 16:30:10,150 INFO L912 BasicCegarLoop]: 137 mSDtfsCounter, 106 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:10,150 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 370 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 242 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:30:10,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1545 states. [2022-03-18 16:30:10,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1545 to 1367. [2022-03-18 16:30:10,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1367 states, 1362 states have (on average 1.3854625550660793) internal successors, (1887), 1362 states have internal predecessors, (1887), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:10,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1891 transitions. [2022-03-18 16:30:10,173 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1891 transitions. Word has length 245 [2022-03-18 16:30:10,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:10,173 INFO L478 AbstractCegarLoop]: Abstraction has 1367 states and 1891 transitions. [2022-03-18 16:30:10,173 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:10,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1891 transitions. [2022-03-18 16:30:10,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-03-18 16:30:10,175 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:10,175 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:30:10,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-18 16:30:10,375 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:30:10,376 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:10,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:10,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1914708735, now seen corresponding path program 1 times [2022-03-18 16:30:10,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:10,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354580227] [2022-03-18 16:30:10,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:10,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:10,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:10,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:10,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:10,507 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 278 proven. 87 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2022-03-18 16:30:10,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:10,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354580227] [2022-03-18 16:30:10,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354580227] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:30:10,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077617952] [2022-03-18 16:30:10,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:10,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:30:10,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:30:10,508 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 16:30:10,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-18 16:30:11,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:11,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 1398 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-18 16:30:11,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:30:11,428 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:30:11,428 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 16:30:11,466 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 16:30:11,466 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:30:11,524 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-18 16:30:11,624 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-18 16:30:11,635 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:30:11,635 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 [2022-03-18 16:30:11,682 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:30:11,726 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 272 proven. 90 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-03-18 16:30:11,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 16:30:11,968 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-03-18 16:30:11,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077617952] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-18 16:30:11,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-18 16:30:11,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-03-18 16:30:11,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797638491] [2022-03-18 16:30:11,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:11,969 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:30:11,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:11,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:30:11,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-18 16:30:11,969 INFO L87 Difference]: Start difference. First operand 1367 states and 1891 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:13,975 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:14,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:14,250 INFO L93 Difference]: Finished difference Result 3004 states and 4164 transitions. [2022-03-18 16:30:14,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:30:14,250 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 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 245 [2022-03-18 16:30:14,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:14,257 INFO L225 Difference]: With dead ends: 3004 [2022-03-18 16:30:14,257 INFO L226 Difference]: Without dead ends: 1665 [2022-03-18 16:30:14,259 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 492 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-18 16:30:14,259 INFO L912 BasicCegarLoop]: 138 mSDtfsCounter, 102 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:14,259 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 372 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 239 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-18 16:30:14,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1665 states. [2022-03-18 16:30:14,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1665 to 1463. [2022-03-18 16:30:14,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 1458 states have (on average 1.3786008230452675) internal successors, (2010), 1458 states have internal predecessors, (2010), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:14,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 2014 transitions. [2022-03-18 16:30:14,282 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 2014 transitions. Word has length 245 [2022-03-18 16:30:14,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:14,282 INFO L478 AbstractCegarLoop]: Abstraction has 1463 states and 2014 transitions. [2022-03-18 16:30:14,283 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:14,283 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 2014 transitions. [2022-03-18 16:30:14,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-03-18 16:30:14,284 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:14,284 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:30:14,307 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-18 16:30:14,499 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:30:14,499 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:14,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:14,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1973130269, now seen corresponding path program 1 times [2022-03-18 16:30:14,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:14,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520458860] [2022-03-18 16:30:14,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:14,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:14,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:14,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:14,642 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 265 proven. 15 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2022-03-18 16:30:14,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:14,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520458860] [2022-03-18 16:30:14,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520458860] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:30:14,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051251124] [2022-03-18 16:30:14,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:14,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:30:14,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:30:14,644 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 16:30:14,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-18 16:30:15,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:15,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 1464 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-18 16:30:15,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:30:15,552 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:30:15,552 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 16:30:15,589 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 16:30:15,589 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:30:15,644 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-18 16:30:15,731 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-18 16:30:15,750 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:30:15,751 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 [2022-03-18 16:30:15,790 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:30:15,858 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 260 proven. 94 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-03-18 16:30:15,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 16:30:16,084 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 266 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-03-18 16:30:16,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051251124] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-18 16:30:16,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-18 16:30:16,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-03-18 16:30:16,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149671684] [2022-03-18 16:30:16,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:16,085 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:30:16,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:16,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:30:16,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-18 16:30:16,086 INFO L87 Difference]: Start difference. First operand 1463 states and 2014 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:18,092 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:18,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:18,364 INFO L93 Difference]: Finished difference Result 3205 states and 4419 transitions. [2022-03-18 16:30:18,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:30:18,365 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 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 247 [2022-03-18 16:30:18,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:18,366 INFO L225 Difference]: With dead ends: 3205 [2022-03-18 16:30:18,367 INFO L226 Difference]: Without dead ends: 1770 [2022-03-18 16:30:18,368 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 505 GetRequests, 496 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-18 16:30:18,371 INFO L912 BasicCegarLoop]: 122 mSDtfsCounter, 108 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:18,371 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 340 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 243 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-18 16:30:18,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1770 states. [2022-03-18 16:30:18,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1770 to 1547. [2022-03-18 16:30:18,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1542 states have (on average 1.3657587548638133) internal successors, (2106), 1542 states have internal predecessors, (2106), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:18,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2110 transitions. [2022-03-18 16:30:18,395 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2110 transitions. Word has length 247 [2022-03-18 16:30:18,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:18,395 INFO L478 AbstractCegarLoop]: Abstraction has 1547 states and 2110 transitions. [2022-03-18 16:30:18,395 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:18,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2110 transitions. [2022-03-18 16:30:18,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-03-18 16:30:18,397 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:18,397 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:30:18,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-18 16:30:18,603 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:30:18,603 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:18,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:18,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1320002532, now seen corresponding path program 1 times [2022-03-18 16:30:18,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:18,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224778585] [2022-03-18 16:30:18,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:18,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:18,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:18,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:18,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:18,742 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 272 proven. 81 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-03-18 16:30:18,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:18,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224778585] [2022-03-18 16:30:18,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224778585] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:30:18,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037791226] [2022-03-18 16:30:18,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:18,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:30:18,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:30:18,744 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 16:30:18,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-18 16:30:19,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:19,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 1467 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-18 16:30:19,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:30:19,669 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:30:19,669 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 16:30:19,702 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 16:30:19,703 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:30:19,763 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-18 16:30:19,856 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-18 16:30:19,875 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:30:19,876 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 [2022-03-18 16:30:19,918 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:30:19,968 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 263 proven. 93 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2022-03-18 16:30:19,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 16:30:20,221 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-03-18 16:30:20,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037791226] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-18 16:30:20,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-18 16:30:20,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-03-18 16:30:20,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89897580] [2022-03-18 16:30:20,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:20,222 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:30:20,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:20,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:30:20,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-18 16:30:20,222 INFO L87 Difference]: Start difference. First operand 1547 states and 2110 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:22,237 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:22,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:22,517 INFO L93 Difference]: Finished difference Result 3244 states and 4428 transitions. [2022-03-18 16:30:22,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:30:22,518 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 248 [2022-03-18 16:30:22,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:22,520 INFO L225 Difference]: With dead ends: 3244 [2022-03-18 16:30:22,520 INFO L226 Difference]: Without dead ends: 1725 [2022-03-18 16:30:22,522 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 498 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-18 16:30:22,522 INFO L912 BasicCegarLoop]: 122 mSDtfsCounter, 107 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:22,522 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 340 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 242 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:30:22,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2022-03-18 16:30:22,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 1547. [2022-03-18 16:30:22,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1542 states have (on average 1.3540856031128405) internal successors, (2088), 1542 states have internal predecessors, (2088), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:22,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2092 transitions. [2022-03-18 16:30:22,549 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2092 transitions. Word has length 248 [2022-03-18 16:30:22,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:22,550 INFO L478 AbstractCegarLoop]: Abstraction has 1547 states and 2092 transitions. [2022-03-18 16:30:22,550 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:22,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2092 transitions. [2022-03-18 16:30:22,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-03-18 16:30:22,552 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:22,552 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:30:22,574 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-18 16:30:22,767 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:30:22,767 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:22,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:22,768 INFO L85 PathProgramCache]: Analyzing trace with hash -424624494, now seen corresponding path program 1 times [2022-03-18 16:30:22,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:22,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576786576] [2022-03-18 16:30:22,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:22,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:22,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:22,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:22,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:22,881 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2022-03-18 16:30:22,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:22,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576786576] [2022-03-18 16:30:22,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576786576] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:30:22,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:30:22,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:30:22,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034509534] [2022-03-18 16:30:22,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:22,883 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:30:22,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:22,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:30:22,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:30:22,883 INFO L87 Difference]: Start difference. First operand 1547 states and 2092 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:24,891 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:25,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:25,203 INFO L93 Difference]: Finished difference Result 3139 states and 4247 transitions. [2022-03-18 16:30:25,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:30:25,203 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 249 [2022-03-18 16:30:25,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:25,205 INFO L225 Difference]: With dead ends: 3139 [2022-03-18 16:30:25,205 INFO L226 Difference]: Without dead ends: 1620 [2022-03-18 16:30:25,206 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:30:25,207 INFO L912 BasicCegarLoop]: 215 mSDtfsCounter, 13 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:25,207 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 533 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 372 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:30:25,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1620 states. [2022-03-18 16:30:25,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1620 to 1610. [2022-03-18 16:30:25,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1610 states, 1605 states have (on average 1.3514018691588785) internal successors, (2169), 1605 states have internal predecessors, (2169), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:25,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 2173 transitions. [2022-03-18 16:30:25,232 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 2173 transitions. Word has length 249 [2022-03-18 16:30:25,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:25,233 INFO L478 AbstractCegarLoop]: Abstraction has 1610 states and 2173 transitions. [2022-03-18 16:30:25,233 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:25,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 2173 transitions. [2022-03-18 16:30:25,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-03-18 16:30:25,235 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:25,235 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:30:25,235 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-18 16:30:25,235 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:25,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:25,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1817107336, now seen corresponding path program 1 times [2022-03-18 16:30:25,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:25,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638973445] [2022-03-18 16:30:25,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:25,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:25,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:25,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:25,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:25,375 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2022-03-18 16:30:25,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:25,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638973445] [2022-03-18 16:30:25,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638973445] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:30:25,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:30:25,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:30:25,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316914091] [2022-03-18 16:30:25,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:25,375 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:30:25,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:25,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:30:25,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:30:25,376 INFO L87 Difference]: Start difference. First operand 1610 states and 2173 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:27,382 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:27,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:27,761 INFO L93 Difference]: Finished difference Result 3232 states and 4361 transitions. [2022-03-18 16:30:27,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:30:27,762 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 250 [2022-03-18 16:30:27,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:27,765 INFO L225 Difference]: With dead ends: 3232 [2022-03-18 16:30:27,765 INFO L226 Difference]: Without dead ends: 1650 [2022-03-18 16:30:27,767 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:30:27,767 INFO L912 BasicCegarLoop]: 223 mSDtfsCounter, 25 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:27,767 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 550 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 438 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:30:27,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1650 states. [2022-03-18 16:30:27,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1650 to 1610. [2022-03-18 16:30:27,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1610 states, 1605 states have (on average 1.3495327102803738) internal successors, (2166), 1605 states have internal predecessors, (2166), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:27,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 2170 transitions. [2022-03-18 16:30:27,796 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 2170 transitions. Word has length 250 [2022-03-18 16:30:27,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:27,797 INFO L478 AbstractCegarLoop]: Abstraction has 1610 states and 2170 transitions. [2022-03-18 16:30:27,797 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:27,797 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 2170 transitions. [2022-03-18 16:30:27,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-03-18 16:30:27,799 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:27,799 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-18 16:30:27,799 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-18 16:30:27,799 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:27,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:27,800 INFO L85 PathProgramCache]: Analyzing trace with hash 219759553, now seen corresponding path program 1 times [2022-03-18 16:30:27,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:27,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400278268] [2022-03-18 16:30:27,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:27,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:27,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:27,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:27,950 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 288 proven. 97 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-03-18 16:30:27,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:27,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400278268] [2022-03-18 16:30:27,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400278268] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:30:27,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410745515] [2022-03-18 16:30:27,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:27,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:30:27,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:30:27,952 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 16:30:27,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-18 16:30:28,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:28,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 1430 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-18 16:30:28,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:30:28,948 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:30:28,948 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 16:30:28,982 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 16:30:28,982 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:30:29,032 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-18 16:30:29,125 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-18 16:30:29,141 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:30:29,141 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 [2022-03-18 16:30:29,203 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:30:29,256 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 287 proven. 85 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-03-18 16:30:29,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 16:30:29,492 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 293 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-03-18 16:30:29,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410745515] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-18 16:30:29,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-18 16:30:29,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-03-18 16:30:29,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159086841] [2022-03-18 16:30:29,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:29,493 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:30:29,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:29,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:30:29,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-18 16:30:29,493 INFO L87 Difference]: Start difference. First operand 1610 states and 2170 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:31,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:31,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:31,795 INFO L93 Difference]: Finished difference Result 3499 states and 4725 transitions. [2022-03-18 16:30:31,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:30:31,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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 251 [2022-03-18 16:30:31,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:31,798 INFO L225 Difference]: With dead ends: 3499 [2022-03-18 16:30:31,798 INFO L226 Difference]: Without dead ends: 1917 [2022-03-18 16:30:31,799 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 513 GetRequests, 504 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-18 16:30:31,800 INFO L912 BasicCegarLoop]: 122 mSDtfsCounter, 98 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:31,800 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 340 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 243 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:30:31,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1917 states. [2022-03-18 16:30:31,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1917 to 1721. [2022-03-18 16:30:31,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1721 states, 1716 states have (on average 1.3426573426573427) internal successors, (2304), 1716 states have internal predecessors, (2304), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:31,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1721 states to 1721 states and 2308 transitions. [2022-03-18 16:30:31,833 INFO L78 Accepts]: Start accepts. Automaton has 1721 states and 2308 transitions. Word has length 251 [2022-03-18 16:30:31,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:31,833 INFO L478 AbstractCegarLoop]: Abstraction has 1721 states and 2308 transitions. [2022-03-18 16:30:31,834 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:31,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1721 states and 2308 transitions. [2022-03-18 16:30:31,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-03-18 16:30:31,836 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:31,836 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-18 16:30:31,862 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-18 16:30:32,051 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:30:32,051 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:32,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:32,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1419124211, now seen corresponding path program 1 times [2022-03-18 16:30:32,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:32,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134057767] [2022-03-18 16:30:32,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:32,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:32,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:32,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:32,199 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 290 proven. 99 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-03-18 16:30:32,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:32,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134057767] [2022-03-18 16:30:32,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134057767] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:30:32,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413837514] [2022-03-18 16:30:32,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:32,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:30:32,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:30:32,200 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) [2022-03-18 16:30:32,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-18 16:30:33,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:33,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 1433 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-18 16:30:33,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:30:33,229 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:30:33,229 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 16:30:33,263 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 16:30:33,263 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:30:33,312 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-18 16:30:33,404 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-18 16:30:33,414 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:30:33,414 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 [2022-03-18 16:30:33,467 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:30:33,511 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 290 proven. 84 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-03-18 16:30:33,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 16:30:33,770 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 296 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-03-18 16:30:33,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413837514] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-18 16:30:33,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-18 16:30:33,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-03-18 16:30:33,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289359384] [2022-03-18 16:30:33,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:33,771 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:30:33,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:33,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:30:33,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-18 16:30:33,771 INFO L87 Difference]: Start difference. First operand 1721 states and 2308 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:34,852 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:35,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:35,127 INFO L93 Difference]: Finished difference Result 3592 states and 4824 transitions. [2022-03-18 16:30:35,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:30:35,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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 252 [2022-03-18 16:30:35,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:35,129 INFO L225 Difference]: With dead ends: 3592 [2022-03-18 16:30:35,129 INFO L226 Difference]: Without dead ends: 1899 [2022-03-18 16:30:35,130 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 515 GetRequests, 506 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-18 16:30:35,131 INFO L912 BasicCegarLoop]: 122 mSDtfsCounter, 97 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:35,131 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 340 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-18 16:30:35,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1899 states. [2022-03-18 16:30:35,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1899 to 1721. [2022-03-18 16:30:35,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1721 states, 1716 states have (on average 1.3391608391608392) internal successors, (2298), 1716 states have internal predecessors, (2298), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:35,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1721 states to 1721 states and 2302 transitions. [2022-03-18 16:30:35,161 INFO L78 Accepts]: Start accepts. Automaton has 1721 states and 2302 transitions. Word has length 252 [2022-03-18 16:30:35,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:35,161 INFO L478 AbstractCegarLoop]: Abstraction has 1721 states and 2302 transitions. [2022-03-18 16:30:35,161 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:35,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1721 states and 2302 transitions. [2022-03-18 16:30:35,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-03-18 16:30:35,163 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:35,163 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:30:35,186 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-18 16:30:35,363 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2022-03-18 16:30:35,364 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:35,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:35,364 INFO L85 PathProgramCache]: Analyzing trace with hash 998910666, now seen corresponding path program 1 times [2022-03-18 16:30:35,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:35,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517411079] [2022-03-18 16:30:35,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:35,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:35,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:35,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:35,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:35,550 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 292 proven. 101 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2022-03-18 16:30:35,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:35,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517411079] [2022-03-18 16:30:35,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517411079] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:30:35,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070798792] [2022-03-18 16:30:35,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:35,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:30:35,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:30:35,552 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 16:30:35,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-18 16:30:36,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:36,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 1441 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-18 16:30:36,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:30:36,618 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:30:36,618 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 16:30:36,656 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 16:30:36,656 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:30:36,712 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-18 16:30:36,802 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-18 16:30:36,812 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:30:36,812 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 [2022-03-18 16:30:36,864 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:30:36,913 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 293 proven. 83 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2022-03-18 16:30:36,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 16:30:37,193 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 299 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-03-18 16:30:37,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070798792] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-18 16:30:37,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-18 16:30:37,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-03-18 16:30:37,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461821291] [2022-03-18 16:30:37,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:37,194 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:30:37,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:37,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:30:37,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-18 16:30:37,194 INFO L87 Difference]: Start difference. First operand 1721 states and 2302 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:39,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:39,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:39,515 INFO L93 Difference]: Finished difference Result 3820 states and 5112 transitions. [2022-03-18 16:30:39,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:30:39,515 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 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 255 [2022-03-18 16:30:39,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:39,517 INFO L225 Difference]: With dead ends: 3820 [2022-03-18 16:30:39,517 INFO L226 Difference]: Without dead ends: 2127 [2022-03-18 16:30:39,519 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 521 GetRequests, 512 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-18 16:30:39,519 INFO L912 BasicCegarLoop]: 123 mSDtfsCounter, 95 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:39,519 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 342 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 245 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:30:39,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2127 states. [2022-03-18 16:30:39,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2127 to 1937. [2022-03-18 16:30:39,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1937 states, 1932 states have (on average 1.3307453416149069) internal successors, (2571), 1932 states have internal predecessors, (2571), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:39,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1937 states to 1937 states and 2575 transitions. [2022-03-18 16:30:39,554 INFO L78 Accepts]: Start accepts. Automaton has 1937 states and 2575 transitions. Word has length 255 [2022-03-18 16:30:39,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:39,554 INFO L478 AbstractCegarLoop]: Abstraction has 1937 states and 2575 transitions. [2022-03-18 16:30:39,554 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:39,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1937 states and 2575 transitions. [2022-03-18 16:30:39,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-03-18 16:30:39,556 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:39,557 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:30:39,585 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-18 16:30:39,771 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2022-03-18 16:30:39,771 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:39,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:39,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1424141238, now seen corresponding path program 1 times [2022-03-18 16:30:39,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:39,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182614605] [2022-03-18 16:30:39,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:39,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:39,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:39,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:39,948 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 294 proven. 103 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-03-18 16:30:39,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:39,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182614605] [2022-03-18 16:30:39,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182614605] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:30:39,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908164378] [2022-03-18 16:30:39,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:39,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:30:39,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:30:39,949 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 16:30:39,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-18 16:30:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:40,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 1444 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-18 16:30:41,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:30:41,035 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:30:41,035 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 16:30:41,067 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 16:30:41,068 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:30:41,115 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-18 16:30:41,224 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-18 16:30:41,236 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:30:41,237 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 [2022-03-18 16:30:41,307 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:30:41,352 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 296 proven. 82 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2022-03-18 16:30:41,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 16:30:41,612 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 302 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-03-18 16:30:41,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908164378] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-18 16:30:41,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-18 16:30:41,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 7] total 10 [2022-03-18 16:30:41,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201489678] [2022-03-18 16:30:41,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:41,613 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:30:41,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:41,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:30:41,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-18 16:30:41,613 INFO L87 Difference]: Start difference. First operand 1937 states and 2575 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:43,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:43,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:43,917 INFO L93 Difference]: Finished difference Result 4024 states and 5358 transitions. [2022-03-18 16:30:43,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:30:43,918 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 256 [2022-03-18 16:30:43,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:43,920 INFO L225 Difference]: With dead ends: 4024 [2022-03-18 16:30:43,920 INFO L226 Difference]: Without dead ends: 2115 [2022-03-18 16:30:43,921 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 523 GetRequests, 514 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-18 16:30:43,921 INFO L912 BasicCegarLoop]: 122 mSDtfsCounter, 94 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:43,921 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 340 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 242 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-18 16:30:43,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2115 states. [2022-03-18 16:30:43,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2115 to 1937. [2022-03-18 16:30:43,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1937 states, 1932 states have (on average 1.3276397515527951) internal successors, (2565), 1932 states have internal predecessors, (2565), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:43,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1937 states to 1937 states and 2569 transitions. [2022-03-18 16:30:43,956 INFO L78 Accepts]: Start accepts. Automaton has 1937 states and 2569 transitions. Word has length 256 [2022-03-18 16:30:43,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:43,956 INFO L478 AbstractCegarLoop]: Abstraction has 1937 states and 2569 transitions. [2022-03-18 16:30:43,956 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:43,957 INFO L276 IsEmpty]: Start isEmpty. Operand 1937 states and 2569 transitions. [2022-03-18 16:30:43,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-03-18 16:30:43,959 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:43,959 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:30:43,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-18 16:30:44,159 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable60 [2022-03-18 16:30:44,160 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:44,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:44,160 INFO L85 PathProgramCache]: Analyzing trace with hash 557601309, now seen corresponding path program 1 times [2022-03-18 16:30:44,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:44,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333906174] [2022-03-18 16:30:44,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:44,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:44,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:44,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:44,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:44,471 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 380 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-03-18 16:30:44,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:44,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333906174] [2022-03-18 16:30:44,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333906174] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:30:44,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:30:44,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-18 16:30:44,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667659757] [2022-03-18 16:30:44,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:44,472 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-18 16:30:44,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:44,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-18 16:30:44,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:30:44,472 INFO L87 Difference]: Start difference. First operand 1937 states and 2569 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:46,482 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:47,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:47,305 INFO L93 Difference]: Finished difference Result 4230 states and 5583 transitions. [2022-03-18 16:30:47,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-18 16:30:47,306 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 257 [2022-03-18 16:30:47,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:47,308 INFO L225 Difference]: With dead ends: 4230 [2022-03-18 16:30:47,308 INFO L226 Difference]: Without dead ends: 2321 [2022-03-18 16:30:47,310 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-03-18 16:30:47,311 INFO L912 BasicCegarLoop]: 254 mSDtfsCounter, 188 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 25 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 860 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:47,311 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 773 Invalid, 886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 860 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-03-18 16:30:47,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2321 states. [2022-03-18 16:30:47,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2321 to 1997. [2022-03-18 16:30:47,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1997 states, 1992 states have (on average 1.322289156626506) internal successors, (2634), 1992 states have internal predecessors, (2634), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:47,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1997 states to 1997 states and 2638 transitions. [2022-03-18 16:30:47,365 INFO L78 Accepts]: Start accepts. Automaton has 1997 states and 2638 transitions. Word has length 257 [2022-03-18 16:30:47,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:47,365 INFO L478 AbstractCegarLoop]: Abstraction has 1997 states and 2638 transitions. [2022-03-18 16:30:47,365 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:47,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1997 states and 2638 transitions. [2022-03-18 16:30:47,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-03-18 16:30:47,368 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:47,368 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:30:47,368 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-18 16:30:47,368 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:47,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:47,369 INFO L85 PathProgramCache]: Analyzing trace with hash -148995297, now seen corresponding path program 1 times [2022-03-18 16:30:47,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:47,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357828167] [2022-03-18 16:30:47,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:47,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:47,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:47,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:47,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:47,709 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 409 proven. 69 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-03-18 16:30:47,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:47,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357828167] [2022-03-18 16:30:47,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357828167] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:30:47,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860935585] [2022-03-18 16:30:47,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:47,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:30:47,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:30:47,712 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 16:30:47,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-18 16:30:48,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:48,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 1455 conjuncts, 26 conjunts are in the unsatisfiable core [2022-03-18 16:30:48,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:30:48,961 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:30:48,961 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 16:30:48,999 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 16:30:48,999 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:30:49,083 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-18 16:30:49,086 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-18 16:30:49,105 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-18 16:30:49,110 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-18 16:30:49,124 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-18 16:30:49,125 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-03-18 16:30:49,223 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-03-18 16:30:49,223 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-03-18 16:30:49,322 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 11 [2022-03-18 16:30:49,450 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 376 proven. 47 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2022-03-18 16:30:49,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 16:30:49,642 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2022-03-18 16:30:50,256 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_57 Int)) (not (= (select (select (let ((.cse0 (select (select |c_#memory_$Pointer$.base| c_ssl3_accept_~s.base) (+ 84 c_ssl3_accept_~s.offset)))) (store |c_#memory_int| .cse0 (store (select |c_#memory_int| .cse0) (+ 844 v_arrayElimCell_57) 3))) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)) 8465))) is different from false [2022-03-18 16:30:50,365 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 380 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-03-18 16:30:50,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860935585] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-18 16:30:50,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-18 16:30:50,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11, 7] total 19 [2022-03-18 16:30:50,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588597949] [2022-03-18 16:30:50,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:50,365 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:30:50,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:50,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:30:50,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=264, Unknown=1, NotChecked=32, Total=342 [2022-03-18 16:30:50,366 INFO L87 Difference]: Start difference. First operand 1997 states and 2638 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:52,377 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:52,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:52,749 INFO L93 Difference]: Finished difference Result 4216 states and 5577 transitions. [2022-03-18 16:30:52,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:30:52,749 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 257 [2022-03-18 16:30:52,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:52,751 INFO L225 Difference]: With dead ends: 4216 [2022-03-18 16:30:52,751 INFO L226 Difference]: Without dead ends: 2247 [2022-03-18 16:30:52,753 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 533 GetRequests, 514 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=49, Invalid=296, Unknown=1, NotChecked=34, Total=380 [2022-03-18 16:30:52,753 INFO L912 BasicCegarLoop]: 122 mSDtfsCounter, 113 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 251 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:52,753 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 437 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 243 Invalid, 1 Unknown, 251 Unchecked, 2.3s Time] [2022-03-18 16:30:52,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2247 states. [2022-03-18 16:30:52,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2247 to 1940. [2022-03-18 16:30:52,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1940 states, 1935 states have (on average 1.3069767441860465) internal successors, (2529), 1935 states have internal predecessors, (2529), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:52,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1940 states to 1940 states and 2533 transitions. [2022-03-18 16:30:52,790 INFO L78 Accepts]: Start accepts. Automaton has 1940 states and 2533 transitions. Word has length 257 [2022-03-18 16:30:52,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:52,790 INFO L478 AbstractCegarLoop]: Abstraction has 1940 states and 2533 transitions. [2022-03-18 16:30:52,790 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:52,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1940 states and 2533 transitions. [2022-03-18 16:30:52,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-03-18 16:30:52,793 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:52,793 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:30:52,818 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-18 16:30:52,995 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2022-03-18 16:30:52,995 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:52,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:52,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1848854346, now seen corresponding path program 1 times [2022-03-18 16:30:52,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:52,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498750715] [2022-03-18 16:30:52,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:52,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:53,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:53,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:53,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:53,237 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 386 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-03-18 16:30:53,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:53,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498750715] [2022-03-18 16:30:53,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498750715] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:30:53,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:30:53,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-18 16:30:53,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199646405] [2022-03-18 16:30:53,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:53,239 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-18 16:30:53,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:53,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-18 16:30:53,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:30:53,241 INFO L87 Difference]: Start difference. First operand 1940 states and 2533 transitions. Second operand has 6 states, 6 states have (on average 23.666666666666668) internal successors, (142), 5 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:54,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:56,427 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:58,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:31:00,468 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:31:02,488 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:31:03,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:31:03,269 INFO L93 Difference]: Finished difference Result 4216 states and 5486 transitions. [2022-03-18 16:31:03,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-18 16:31:03,269 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.666666666666668) internal successors, (142), 5 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 258 [2022-03-18 16:31:03,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:31:03,272 INFO L225 Difference]: With dead ends: 4216 [2022-03-18 16:31:03,272 INFO L226 Difference]: Without dead ends: 2304 [2022-03-18 16:31:03,274 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-03-18 16:31:03,274 INFO L912 BasicCegarLoop]: 250 mSDtfsCounter, 179 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 23 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 761 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-03-18 16:31:03,274 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 761 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 848 Invalid, 4 Unknown, 0 Unchecked, 9.9s Time] [2022-03-18 16:31:03,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2304 states. [2022-03-18 16:31:03,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2304 to 2003. [2022-03-18 16:31:03,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2003 states, 1998 states have (on average 1.3018018018018018) internal successors, (2601), 1998 states have internal predecessors, (2601), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:03,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2003 states to 2003 states and 2605 transitions. [2022-03-18 16:31:03,316 INFO L78 Accepts]: Start accepts. Automaton has 2003 states and 2605 transitions. Word has length 258 [2022-03-18 16:31:03,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:31:03,316 INFO L478 AbstractCegarLoop]: Abstraction has 2003 states and 2605 transitions. [2022-03-18 16:31:03,317 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.666666666666668) internal successors, (142), 5 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:03,317 INFO L276 IsEmpty]: Start isEmpty. Operand 2003 states and 2605 transitions. [2022-03-18 16:31:03,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-03-18 16:31:03,319 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:31:03,319 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:31:03,319 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-18 16:31:03,319 INFO L403 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:31:03,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:31:03,320 INFO L85 PathProgramCache]: Analyzing trace with hash 2016454644, now seen corresponding path program 1 times [2022-03-18 16:31:03,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:31:03,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887884155] [2022-03-18 16:31:03,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:31:03,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:31:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:03,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:31:03,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:03,607 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 414 proven. 70 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-03-18 16:31:03,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:31:03,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887884155] [2022-03-18 16:31:03,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887884155] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:31:03,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149663554] [2022-03-18 16:31:03,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:31:03,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:31:03,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:31:03,609 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 16:31:03,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-18 16:31:04,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:04,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 1458 conjuncts, 26 conjunts are in the unsatisfiable core [2022-03-18 16:31:04,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:31:04,790 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:31:04,791 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 16:31:04,828 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 16:31:04,828 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:31:04,940 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-18 16:31:04,943 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-18 16:31:04,958 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-18 16:31:04,960 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-18 16:31:04,974 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-18 16:31:04,974 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-03-18 16:31:05,028 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-03-18 16:31:05,029 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-03-18 16:31:05,110 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 11 [2022-03-18 16:31:05,239 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 381 proven. 48 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2022-03-18 16:31:05,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 16:31:05,420 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2022-03-18 16:31:05,912 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_66 Int)) (not (= 8466 (select (select (let ((.cse0 (select (select |c_#memory_$Pointer$.base| c_ssl3_accept_~s.base) (+ 84 c_ssl3_accept_~s.offset)))) (store |c_#memory_int| .cse0 (store (select |c_#memory_int| .cse0) (+ 844 v_arrayElimCell_66) 3))) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset))))) is different from false [2022-03-18 16:31:06,023 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 386 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-03-18 16:31:06,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149663554] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-18 16:31:06,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-18 16:31:06,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11, 7] total 19 [2022-03-18 16:31:06,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998733591] [2022-03-18 16:31:06,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:31:06,023 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:31:06,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:31:06,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:31:06,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=264, Unknown=1, NotChecked=32, Total=342 [2022-03-18 16:31:06,024 INFO L87 Difference]: Start difference. First operand 2003 states and 2605 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:08,038 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:31:08,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:31:08,418 INFO L93 Difference]: Finished difference Result 4154 states and 5416 transitions. [2022-03-18 16:31:08,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:31:08,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 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 258 [2022-03-18 16:31:08,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:31:08,421 INFO L225 Difference]: With dead ends: 4154 [2022-03-18 16:31:08,421 INFO L226 Difference]: Without dead ends: 2179 [2022-03-18 16:31:08,424 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 515 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=49, Invalid=296, Unknown=1, NotChecked=34, Total=380 [2022-03-18 16:31:08,424 INFO L912 BasicCegarLoop]: 125 mSDtfsCounter, 112 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 177 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:31:08,424 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 379 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 243 Invalid, 1 Unknown, 177 Unchecked, 2.3s Time] [2022-03-18 16:31:08,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2179 states. [2022-03-18 16:31:08,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2179 to 1938. [2022-03-18 16:31:08,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1938 states, 1933 states have (on average 1.2871184687015003) internal successors, (2488), 1933 states have internal predecessors, (2488), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:08,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1938 states to 1938 states and 2492 transitions. [2022-03-18 16:31:08,475 INFO L78 Accepts]: Start accepts. Automaton has 1938 states and 2492 transitions. Word has length 258 [2022-03-18 16:31:08,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:31:08,475 INFO L478 AbstractCegarLoop]: Abstraction has 1938 states and 2492 transitions. [2022-03-18 16:31:08,475 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:08,475 INFO L276 IsEmpty]: Start isEmpty. Operand 1938 states and 2492 transitions. [2022-03-18 16:31:08,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-03-18 16:31:08,478 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:31:08,478 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:31:08,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-03-18 16:31:08,691 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2022-03-18 16:31:08,691 INFO L403 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:31:08,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:31:08,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1541671213, now seen corresponding path program 1 times [2022-03-18 16:31:08,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:31:08,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106430380] [2022-03-18 16:31:08,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:31:08,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:31:08,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:08,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:31:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:08,997 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 602 trivial. 0 not checked. [2022-03-18 16:31:08,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:31:08,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106430380] [2022-03-18 16:31:08,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106430380] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:31:08,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:31:08,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-18 16:31:08,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881616202] [2022-03-18 16:31:08,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:31:08,998 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-18 16:31:08,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:31:08,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-18 16:31:08,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-18 16:31:08,998 INFO L87 Difference]: Start difference. First operand 1938 states and 2492 transitions. Second operand has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:11,009 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:31:11,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:31:11,499 INFO L93 Difference]: Finished difference Result 3869 states and 4976 transitions. [2022-03-18 16:31:11,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-18 16:31:11,500 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 268 [2022-03-18 16:31:11,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:31:11,502 INFO L225 Difference]: With dead ends: 3869 [2022-03-18 16:31:11,503 INFO L226 Difference]: Without dead ends: 1938 [2022-03-18 16:31:11,505 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-18 16:31:11,505 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 7 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:31:11,505 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 792 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 428 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:31:11,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1938 states. [2022-03-18 16:31:11,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1938 to 1938. [2022-03-18 16:31:11,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1938 states, 1933 states have (on average 1.2866011381272633) internal successors, (2487), 1933 states have internal predecessors, (2487), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:11,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1938 states to 1938 states and 2491 transitions. [2022-03-18 16:31:11,559 INFO L78 Accepts]: Start accepts. Automaton has 1938 states and 2491 transitions. Word has length 268 [2022-03-18 16:31:11,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:31:11,560 INFO L478 AbstractCegarLoop]: Abstraction has 1938 states and 2491 transitions. [2022-03-18 16:31:11,560 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:11,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1938 states and 2491 transitions. [2022-03-18 16:31:11,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-03-18 16:31:11,562 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:31:11,562 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:31:11,562 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-18 16:31:11,563 INFO L403 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:31:11,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:31:11,563 INFO L85 PathProgramCache]: Analyzing trace with hash -572397551, now seen corresponding path program 1 times [2022-03-18 16:31:11,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:31:11,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951259568] [2022-03-18 16:31:11,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:31:11,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:31:12,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:12,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:31:12,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:12,621 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 302 proven. 264 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-18 16:31:12,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:31:12,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951259568] [2022-03-18 16:31:12,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951259568] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:31:12,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956698968] [2022-03-18 16:31:12,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:31:12,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:31:12,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:31:12,622 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 16:31:12,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-03-18 16:31:13,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:13,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 1488 conjuncts, 158 conjunts are in the unsatisfiable core [2022-03-18 16:31:13,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:31:13,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:31:13,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:31:13,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:31:13,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:31:13,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:31:13,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:31:13,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:31:13,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:31:13,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:31:13,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:31:13,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:31:13,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:31:13,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:31:13,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:31:13,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:31:13,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:31:13,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:31:13,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:31:13,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:31:13,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:31:13,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:31:13,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:31:13,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:31:13,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:31:13,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:31:13,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:31:13,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:31:13,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:31:13,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:31:13,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:31:14,001 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 24 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5902 treesize of output 797