/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.07.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 02:50:45,455 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 02:50:45,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 02:50:45,497 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 02:50:45,498 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 02:50:45,499 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 02:50:45,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 02:50:45,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 02:50:45,510 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 02:50:45,516 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 02:50:45,517 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 02:50:45,517 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 02:50:45,518 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 02:50:45,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 02:50:45,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 02:50:45,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 02:50:45,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 02:50:45,521 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 02:50:45,522 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 02:50:45,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 02:50:45,524 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 02:50:45,528 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 02:50:45,529 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 02:50:45,533 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 02:50:45,534 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 02:50:45,542 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-20 02:50:45,551 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 02:50:45,552 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 02:50:45,554 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 02:50:45,555 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2022-03-20 02:50:45,590 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 02:50:45,590 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 02:50:45,591 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-20 02:50:45,591 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-20 02:50:45,596 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-20 02:50:45,596 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-20 02:50:45,597 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-20 02:50:45,597 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-20 02:50:45,597 INFO L138 SettingsManager]: * Use SBE=true [2022-03-20 02:50:45,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 02:50:45,598 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 02:50:45,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 02:50:45,599 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 02:50:45,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 02:50:45,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 02:50:45,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 02:50:45,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 02:50:45,601 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 02:50:45,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 02:50:45,601 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 02:50:45,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 02:50:45,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 02:50:45,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 02:50:45,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 02:50:45,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 02:50:45,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 02:50:45,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-20 02:50:45,602 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-20 02:50:45,603 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 02:50:45,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-20 02:50:45,603 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-20 02:50:45,603 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-03-20 02:50:45,603 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 02:50:45,603 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 02:50:45,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 02:50:45,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 02:50:45,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 02:50:45,845 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 02:50:45,845 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 02:50:45,846 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.07.i.cil-1.c [2022-03-20 02:50:45,893 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8c585f97/a06c02c903e14b5a8f8540f45bef34b6/FLAG42ea0951a [2022-03-20 02:50:46,420 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 02:50:46,420 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.07.i.cil-1.c [2022-03-20 02:50:46,439 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8c585f97/a06c02c903e14b5a8f8540f45bef34b6/FLAG42ea0951a [2022-03-20 02:50:46,681 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8c585f97/a06c02c903e14b5a8f8540f45bef34b6 [2022-03-20 02:50:46,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 02:50:46,685 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 02:50:46,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 02:50:46,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 02:50:46,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 02:50:46,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 02:50:46" (1/1) ... [2022-03-20 02:50:46,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50004f7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:46, skipping insertion in model container [2022-03-20 02:50:46,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 02:50:46" (1/1) ... [2022-03-20 02:50:46,699 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 02:50:46,765 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 02:50:47,088 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.07.i.cil-1.c[74369,74382] [2022-03-20 02:50:47,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 02:50:47,108 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 02:50:47,211 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.07.i.cil-1.c[74369,74382] [2022-03-20 02:50:47,227 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 02:50:47,244 INFO L208 MainTranslator]: Completed translation [2022-03-20 02:50:47,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:47 WrapperNode [2022-03-20 02:50:47,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 02:50:47,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 02:50:47,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 02:50:47,245 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 02:50:47,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:47" (1/1) ... [2022-03-20 02:50:47,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:47" (1/1) ... [2022-03-20 02:50:47,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:47" (1/1) ... [2022-03-20 02:50:47,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:47" (1/1) ... [2022-03-20 02:50:47,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:47" (1/1) ... [2022-03-20 02:50:47,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:47" (1/1) ... [2022-03-20 02:50:47,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:47" (1/1) ... [2022-03-20 02:50:47,389 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 02:50:47,390 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 02:50:47,390 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 02:50:47,391 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 02:50:47,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:47" (1/1) ... [2022-03-20 02:50:47,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 02:50:47,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:50:47,429 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-20 02:50:47,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-20 02:50:47,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 02:50:47,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 02:50:47,470 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 02:50:47,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-20 02:50:47,472 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-20 02:50:47,473 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 02:50:47,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-20 02:50:47,473 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 02:50:47,473 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 02:50:47,473 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 02:50:47,473 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 02:50:47,473 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 02:50:47,473 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 02:50:47,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 02:50:47,474 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 02:50:47,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 02:50:47,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 02:50:47,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 02:50:47,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 02:50:47,474 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 02:50:47,474 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-20 02:50:47,474 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 02:50:47,474 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-20 02:50:47,474 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-20 02:50:47,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 02:50:47,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 02:50:47,475 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 02:50:47,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 02:50:47,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 02:50:47,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 02:50:47,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 02:50:47,475 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 02:50:47,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 02:50:47,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 02:50:47,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 02:50:47,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 02:50:47,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 02:50:47,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 02:50:47,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 02:50:47,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 02:50:47,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 02:50:47,647 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 02:50:47,648 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 02:50:48,418 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:50:48,885 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-20 02:50:48,886 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-20 02:50:48,897 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 02:50:48,905 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 02:50:48,905 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 02:50:48,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 02:50:48 BoogieIcfgContainer [2022-03-20 02:50:48,907 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 02:50:48,909 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 02:50:48,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 02:50:48,912 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 02:50:48,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 02:50:46" (1/3) ... [2022-03-20 02:50:48,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d1b29f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 02:50:48, skipping insertion in model container [2022-03-20 02:50:48,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:50:47" (2/3) ... [2022-03-20 02:50:48,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d1b29f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 02:50:48, skipping insertion in model container [2022-03-20 02:50:48,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 02:50:48" (3/3) ... [2022-03-20 02:50:48,915 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.07.i.cil-1.c [2022-03-20 02:50:48,921 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-20 02:50:48,922 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 02:50:48,981 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 02:50:48,987 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-20 02:50:48,987 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 02:50:49,008 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 02:50:49,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-20 02:50:49,016 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:50:49,016 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:50:49,017 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:50:49,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:50:49,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1538020646, now seen corresponding path program 1 times [2022-03-20 02:50:49,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:50:49,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707901575] [2022-03-20 02:50:49,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:49,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:50:49,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:49,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:50:49,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:49,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:50:49,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:50:49,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707901575] [2022-03-20 02:50:49,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707901575] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:50:49,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:50:49,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:50:49,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503880687] [2022-03-20 02:50:49,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:50:49,653 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:50:49,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:50:49,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:50:49,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:50:49,694 INFO L87 Difference]: Start difference. First operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:52,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:50:52,610 INFO L93 Difference]: Finished difference Result 428 states and 723 transitions. [2022-03-20 02:50:52,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:50:52,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-03-20 02:50:52,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:50:52,623 INFO L225 Difference]: With dead ends: 428 [2022-03-20 02:50:52,623 INFO L226 Difference]: Without dead ends: 259 [2022-03-20 02:50:52,627 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:50:52,631 INFO L913 BasicCegarLoop]: 157 mSDtfsCounter, 163 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:50:52,632 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 461 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-20 02:50:52,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-03-20 02:50:52,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 170. [2022-03-20 02:50:52,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 165 states have (on average 1.5818181818181818) internal successors, (261), 165 states have internal predecessors, (261), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:52,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 265 transitions. [2022-03-20 02:50:52,688 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 265 transitions. Word has length 42 [2022-03-20 02:50:52,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:50:52,688 INFO L478 AbstractCegarLoop]: Abstraction has 170 states and 265 transitions. [2022-03-20 02:50:52,688 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:52,689 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 265 transitions. [2022-03-20 02:50:52,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-03-20 02:50:52,690 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:50:52,691 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:50:52,691 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 02:50:52,691 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:50:52,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:50:52,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1015183371, now seen corresponding path program 1 times [2022-03-20 02:50:52,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:50:52,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340400014] [2022-03-20 02:50:52,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:52,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:50:52,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:52,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:50:52,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:52,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:50:52,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:50:52,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340400014] [2022-03-20 02:50:52,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340400014] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:50:52,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:50:52,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:50:52,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674748136] [2022-03-20 02:50:52,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:50:52,890 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:50:52,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:50:52,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:50:52,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:50:52,891 INFO L87 Difference]: Start difference. First operand 170 states and 265 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:55,974 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:50:57,021 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:50:57,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:50:57,611 INFO L93 Difference]: Finished difference Result 442 states and 693 transitions. [2022-03-20 02:50:57,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:50:57,612 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2022-03-20 02:50:57,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:50:57,615 INFO L225 Difference]: With dead ends: 442 [2022-03-20 02:50:57,615 INFO L226 Difference]: Without dead ends: 287 [2022-03-20 02:50:57,616 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:50:57,618 INFO L913 BasicCegarLoop]: 117 mSDtfsCounter, 130 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:50:57,618 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 342 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-03-20 02:50:57,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-03-20 02:50:57,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 199. [2022-03-20 02:50:57,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.6134020618556701) internal successors, (313), 194 states have internal predecessors, (313), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:57,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 317 transitions. [2022-03-20 02:50:57,642 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 317 transitions. Word has length 43 [2022-03-20 02:50:57,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:50:57,642 INFO L478 AbstractCegarLoop]: Abstraction has 199 states and 317 transitions. [2022-03-20 02:50:57,643 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:57,643 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 317 transitions. [2022-03-20 02:50:57,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-20 02:50:57,650 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:50:57,651 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:50:57,651 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 02:50:57,651 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:50:57,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:50:57,652 INFO L85 PathProgramCache]: Analyzing trace with hash 887448580, now seen corresponding path program 1 times [2022-03-20 02:50:57,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:50:57,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560379946] [2022-03-20 02:50:57,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:57,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:50:57,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:57,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:50:57,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:57,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:50:57,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:50:57,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560379946] [2022-03-20 02:50:57,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560379946] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:50:57,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:50:57,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:50:57,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718411865] [2022-03-20 02:50:57,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:50:57,837 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:50:57,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:50:57,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:50:57,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:50:57,838 INFO L87 Difference]: Start difference. First operand 199 states and 317 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:00,198 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:00,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:00,806 INFO L93 Difference]: Finished difference Result 501 states and 796 transitions. [2022-03-20 02:51:00,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:00,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-03-20 02:51:00,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:00,810 INFO L225 Difference]: With dead ends: 501 [2022-03-20 02:51:00,810 INFO L226 Difference]: Without dead ends: 317 [2022-03-20 02:51:00,811 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:00,812 INFO L913 BasicCegarLoop]: 117 mSDtfsCounter, 119 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:00,813 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 342 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-20 02:51:00,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-03-20 02:51:00,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 239. [2022-03-20 02:51:00,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.641025641025641) internal successors, (384), 234 states have internal predecessors, (384), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:00,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 388 transitions. [2022-03-20 02:51:00,844 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 388 transitions. Word has length 48 [2022-03-20 02:51:00,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:00,844 INFO L478 AbstractCegarLoop]: Abstraction has 239 states and 388 transitions. [2022-03-20 02:51:00,844 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:00,845 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 388 transitions. [2022-03-20 02:51:00,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-20 02:51:00,846 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:00,847 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:00,847 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 02:51:00,847 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:00,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:00,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1734094884, now seen corresponding path program 1 times [2022-03-20 02:51:00,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:00,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846589306] [2022-03-20 02:51:00,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:00,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:00,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:01,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:01,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:01,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:51:01,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:01,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846589306] [2022-03-20 02:51:01,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846589306] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:01,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:01,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:01,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931021592] [2022-03-20 02:51:01,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:01,038 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:01,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:01,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:01,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:01,039 INFO L87 Difference]: Start difference. First operand 239 states and 388 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:04,593 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 [] [2022-03-20 02:51:05,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:05,244 INFO L93 Difference]: Finished difference Result 551 states and 886 transitions. [2022-03-20 02:51:05,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:05,245 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-03-20 02:51:05,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:05,247 INFO L225 Difference]: With dead ends: 551 [2022-03-20 02:51:05,247 INFO L226 Difference]: Without dead ends: 327 [2022-03-20 02:51:05,248 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:05,249 INFO L913 BasicCegarLoop]: 124 mSDtfsCounter, 118 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:05,249 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 356 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-20 02:51:05,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-03-20 02:51:05,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 250. [2022-03-20 02:51:05,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 245 states have (on average 1.653061224489796) internal successors, (405), 245 states have internal predecessors, (405), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:05,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 409 transitions. [2022-03-20 02:51:05,261 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 409 transitions. Word has length 49 [2022-03-20 02:51:05,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:05,261 INFO L478 AbstractCegarLoop]: Abstraction has 250 states and 409 transitions. [2022-03-20 02:51:05,261 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:05,262 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 409 transitions. [2022-03-20 02:51:05,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-03-20 02:51:05,262 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:05,263 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:05,263 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 02:51:05,263 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:05,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:05,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1073389890, now seen corresponding path program 1 times [2022-03-20 02:51:05,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:05,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621763288] [2022-03-20 02:51:05,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:05,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:05,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:05,438 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-03-20 02:51:05,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:05,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621763288] [2022-03-20 02:51:05,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621763288] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:05,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:05,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:05,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337269580] [2022-03-20 02:51:05,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:05,440 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:05,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:05,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:05,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:05,441 INFO L87 Difference]: Start difference. First operand 250 states and 409 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:07,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:07,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:07,935 INFO L93 Difference]: Finished difference Result 513 states and 840 transitions. [2022-03-20 02:51:07,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:07,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2022-03-20 02:51:07,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:07,937 INFO L225 Difference]: With dead ends: 513 [2022-03-20 02:51:07,937 INFO L226 Difference]: Without dead ends: 278 [2022-03-20 02:51:07,938 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:07,939 INFO L913 BasicCegarLoop]: 186 mSDtfsCounter, 22 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:07,939 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 481 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 362 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:51:07,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-03-20 02:51:07,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 261. [2022-03-20 02:51:07,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.65625) internal successors, (424), 256 states have internal predecessors, (424), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:07,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 428 transitions. [2022-03-20 02:51:07,954 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 428 transitions. Word has length 70 [2022-03-20 02:51:07,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:07,954 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 428 transitions. [2022-03-20 02:51:07,954 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:07,955 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 428 transitions. [2022-03-20 02:51:07,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-20 02:51:07,955 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:07,956 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:07,956 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 02:51:07,956 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:07,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:07,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1770564040, now seen corresponding path program 1 times [2022-03-20 02:51:07,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:07,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055919957] [2022-03-20 02:51:07,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:07,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:08,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:08,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:08,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:08,128 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 02:51:08,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:08,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055919957] [2022-03-20 02:51:08,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055919957] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:08,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:08,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:08,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972912427] [2022-03-20 02:51:08,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:08,130 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:08,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:08,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:08,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:08,132 INFO L87 Difference]: Start difference. First operand 261 states and 428 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:10,940 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:11,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:11,423 INFO L93 Difference]: Finished difference Result 513 states and 839 transitions. [2022-03-20 02:51:11,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:11,423 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-03-20 02:51:11,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:11,425 INFO L225 Difference]: With dead ends: 513 [2022-03-20 02:51:11,425 INFO L226 Difference]: Without dead ends: 278 [2022-03-20 02:51:11,426 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:11,427 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 24 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:11,427 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 483 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-20 02:51:11,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-03-20 02:51:11,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 261. [2022-03-20 02:51:11,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.65234375) internal successors, (423), 256 states have internal predecessors, (423), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:11,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 427 transitions. [2022-03-20 02:51:11,437 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 427 transitions. Word has length 83 [2022-03-20 02:51:11,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:11,437 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 427 transitions. [2022-03-20 02:51:11,437 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:11,437 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 427 transitions. [2022-03-20 02:51:11,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 02:51:11,438 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:11,438 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:11,439 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 02:51:11,439 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:11,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:11,439 INFO L85 PathProgramCache]: Analyzing trace with hash 22704056, now seen corresponding path program 1 times [2022-03-20 02:51:11,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:11,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917049354] [2022-03-20 02:51:11,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:11,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:11,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:11,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:11,598 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 02:51:11,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:11,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917049354] [2022-03-20 02:51:11,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917049354] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:11,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:11,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:11,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989765066] [2022-03-20 02:51:11,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:11,600 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:11,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:11,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:11,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:11,601 INFO L87 Difference]: Start difference. First operand 261 states and 427 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:13,030 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:15,046 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:16,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:16,240 INFO L93 Difference]: Finished difference Result 572 states and 923 transitions. [2022-03-20 02:51:16,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:16,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-20 02:51:16,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:16,243 INFO L225 Difference]: With dead ends: 572 [2022-03-20 02:51:16,243 INFO L226 Difference]: Without dead ends: 337 [2022-03-20 02:51:16,244 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:16,245 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 146 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:16,245 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 358 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-20 02:51:16,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-03-20 02:51:16,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 261. [2022-03-20 02:51:16,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.63671875) internal successors, (419), 256 states have internal predecessors, (419), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:16,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 423 transitions. [2022-03-20 02:51:16,262 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 423 transitions. Word has length 84 [2022-03-20 02:51:16,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:16,262 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 423 transitions. [2022-03-20 02:51:16,263 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:16,263 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 423 transitions. [2022-03-20 02:51:16,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 02:51:16,263 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:16,264 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:16,264 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 02:51:16,264 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:16,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:16,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1270495820, now seen corresponding path program 1 times [2022-03-20 02:51:16,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:16,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52448282] [2022-03-20 02:51:16,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:16,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:16,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:16,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:16,443 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 02:51:16,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:16,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52448282] [2022-03-20 02:51:16,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52448282] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:16,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:16,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:16,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702266064] [2022-03-20 02:51:16,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:16,444 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:16,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:16,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:16,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:16,445 INFO L87 Difference]: Start difference. First operand 261 states and 423 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:18,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:18,657 INFO L93 Difference]: Finished difference Result 572 states and 916 transitions. [2022-03-20 02:51:18,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:18,657 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-20 02:51:18,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:18,659 INFO L225 Difference]: With dead ends: 572 [2022-03-20 02:51:18,659 INFO L226 Difference]: Without dead ends: 337 [2022-03-20 02:51:18,660 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:18,661 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 144 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:18,661 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 358 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 02:51:18,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-03-20 02:51:18,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 261. [2022-03-20 02:51:18,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.62109375) internal successors, (415), 256 states have internal predecessors, (415), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:18,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 419 transitions. [2022-03-20 02:51:18,673 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 419 transitions. Word has length 84 [2022-03-20 02:51:18,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:18,673 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 419 transitions. [2022-03-20 02:51:18,674 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:18,674 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 419 transitions. [2022-03-20 02:51:18,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 02:51:18,676 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:18,676 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:18,677 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 02:51:18,677 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:18,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:18,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1693483075, now seen corresponding path program 1 times [2022-03-20 02:51:18,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:18,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514802291] [2022-03-20 02:51:18,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:18,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:18,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:18,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:18,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:18,805 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 02:51:18,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:18,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514802291] [2022-03-20 02:51:18,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514802291] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:18,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:18,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:18,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092971584] [2022-03-20 02:51:18,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:18,807 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:18,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:18,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:18,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:18,808 INFO L87 Difference]: Start difference. First operand 261 states and 419 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:20,701 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:22,424 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:24,101 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:24,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:24,500 INFO L93 Difference]: Finished difference Result 510 states and 821 transitions. [2022-03-20 02:51:24,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:24,501 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-20 02:51:24,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:24,502 INFO L225 Difference]: With dead ends: 510 [2022-03-20 02:51:24,502 INFO L226 Difference]: Without dead ends: 275 [2022-03-20 02:51:24,503 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:24,504 INFO L913 BasicCegarLoop]: 190 mSDtfsCounter, 20 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:24,504 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 489 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-03-20 02:51:24,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-03-20 02:51:24,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 261. [2022-03-20 02:51:24,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6171875) internal successors, (414), 256 states have internal predecessors, (414), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:24,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 418 transitions. [2022-03-20 02:51:24,511 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 418 transitions. Word has length 84 [2022-03-20 02:51:24,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:24,512 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 418 transitions. [2022-03-20 02:51:24,512 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:24,512 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 418 transitions. [2022-03-20 02:51:24,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 02:51:24,513 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:24,513 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:24,513 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 02:51:24,513 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:24,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:24,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1703458820, now seen corresponding path program 1 times [2022-03-20 02:51:24,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:24,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293765596] [2022-03-20 02:51:24,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:24,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:24,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:24,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:24,635 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 02:51:24,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:24,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293765596] [2022-03-20 02:51:24,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293765596] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:24,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:24,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:24,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676731816] [2022-03-20 02:51:24,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:24,636 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:24,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:24,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:24,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:24,640 INFO L87 Difference]: Start difference. First operand 261 states and 418 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:28,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:28,279 INFO L93 Difference]: Finished difference Result 571 states and 907 transitions. [2022-03-20 02:51:28,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:28,280 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-20 02:51:28,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:28,282 INFO L225 Difference]: With dead ends: 571 [2022-03-20 02:51:28,282 INFO L226 Difference]: Without dead ends: 336 [2022-03-20 02:51:28,282 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:28,283 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 137 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:28,283 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 360 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-20 02:51:28,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-03-20 02:51:28,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 261. [2022-03-20 02:51:28,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6015625) internal successors, (410), 256 states have internal predecessors, (410), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:28,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 414 transitions. [2022-03-20 02:51:28,290 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 414 transitions. Word has length 84 [2022-03-20 02:51:28,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:28,291 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 414 transitions. [2022-03-20 02:51:28,291 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:28,291 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 414 transitions. [2022-03-20 02:51:28,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-20 02:51:28,292 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:28,292 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:28,292 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 02:51:28,292 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:28,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:28,293 INFO L85 PathProgramCache]: Analyzing trace with hash -336623119, now seen corresponding path program 1 times [2022-03-20 02:51:28,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:28,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18694122] [2022-03-20 02:51:28,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:28,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:28,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:28,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:28,456 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 02:51:28,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:28,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18694122] [2022-03-20 02:51:28,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18694122] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:28,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:28,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:28,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868784399] [2022-03-20 02:51:28,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:28,457 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:28,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:28,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:28,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:28,458 INFO L87 Difference]: Start difference. First operand 261 states and 414 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:31,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:32,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:32,769 INFO L93 Difference]: Finished difference Result 509 states and 812 transitions. [2022-03-20 02:51:32,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:32,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-03-20 02:51:32,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:32,771 INFO L225 Difference]: With dead ends: 509 [2022-03-20 02:51:32,771 INFO L226 Difference]: Without dead ends: 274 [2022-03-20 02:51:32,771 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:32,772 INFO L913 BasicCegarLoop]: 191 mSDtfsCounter, 22 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:32,772 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 491 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 355 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-03-20 02:51:32,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2022-03-20 02:51:32,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 261. [2022-03-20 02:51:32,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.59765625) internal successors, (409), 256 states have internal predecessors, (409), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:32,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 413 transitions. [2022-03-20 02:51:32,779 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 413 transitions. Word has length 85 [2022-03-20 02:51:32,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:32,779 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 413 transitions. [2022-03-20 02:51:32,779 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:32,779 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 413 transitions. [2022-03-20 02:51:32,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-20 02:51:32,780 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:32,780 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:32,780 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 02:51:32,780 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:32,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:32,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1658086991, now seen corresponding path program 1 times [2022-03-20 02:51:32,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:32,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869205198] [2022-03-20 02:51:32,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:32,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:32,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:32,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:32,905 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 02:51:32,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:32,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869205198] [2022-03-20 02:51:32,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869205198] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:32,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:32,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:32,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811330429] [2022-03-20 02:51:32,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:32,906 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:32,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:32,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:32,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:32,907 INFO L87 Difference]: Start difference. First operand 261 states and 413 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:35,613 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:36,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:36,686 INFO L93 Difference]: Finished difference Result 571 states and 899 transitions. [2022-03-20 02:51:36,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:36,686 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 86 [2022-03-20 02:51:36,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:36,689 INFO L225 Difference]: With dead ends: 571 [2022-03-20 02:51:36,689 INFO L226 Difference]: Without dead ends: 336 [2022-03-20 02:51:36,690 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:36,690 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 140 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:36,691 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 360 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-20 02:51:36,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-03-20 02:51:36,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 261. [2022-03-20 02:51:36,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.58203125) internal successors, (405), 256 states have internal predecessors, (405), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:36,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 409 transitions. [2022-03-20 02:51:36,700 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 409 transitions. Word has length 86 [2022-03-20 02:51:36,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:36,700 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 409 transitions. [2022-03-20 02:51:36,700 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:36,700 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 409 transitions. [2022-03-20 02:51:36,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-20 02:51:36,703 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:36,703 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:36,703 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 02:51:36,704 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:36,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:36,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1580788918, now seen corresponding path program 1 times [2022-03-20 02:51:36,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:36,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255609597] [2022-03-20 02:51:36,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:36,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:36,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:36,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:36,858 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 02:51:36,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:36,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255609597] [2022-03-20 02:51:36,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255609597] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:36,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:36,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:36,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942686172] [2022-03-20 02:51:36,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:36,860 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:36,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:36,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:36,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:36,860 INFO L87 Difference]: Start difference. First operand 261 states and 409 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:39,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:40,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:40,373 INFO L93 Difference]: Finished difference Result 499 states and 791 transitions. [2022-03-20 02:51:40,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:40,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-03-20 02:51:40,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:40,375 INFO L225 Difference]: With dead ends: 499 [2022-03-20 02:51:40,376 INFO L226 Difference]: Without dead ends: 264 [2022-03-20 02:51:40,376 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:40,377 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 11 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:40,377 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 505 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-20 02:51:40,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-03-20 02:51:40,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 261. [2022-03-20 02:51:40,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.578125) internal successors, (404), 256 states have internal predecessors, (404), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:40,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 408 transitions. [2022-03-20 02:51:40,384 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 408 transitions. Word has length 87 [2022-03-20 02:51:40,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:40,384 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 408 transitions. [2022-03-20 02:51:40,385 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:40,385 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 408 transitions. [2022-03-20 02:51:40,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-20 02:51:40,385 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:40,386 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:40,386 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 02:51:40,386 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:40,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:40,386 INFO L85 PathProgramCache]: Analyzing trace with hash -2127873441, now seen corresponding path program 1 times [2022-03-20 02:51:40,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:40,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064286533] [2022-03-20 02:51:40,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:40,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:40,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:40,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:40,505 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-20 02:51:40,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:40,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064286533] [2022-03-20 02:51:40,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064286533] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:40,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:40,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:40,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343464034] [2022-03-20 02:51:40,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:40,506 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:40,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:40,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:40,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:40,507 INFO L87 Difference]: Start difference. First operand 261 states and 408 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:41,862 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:43,664 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:46,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:46,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:46,510 INFO L93 Difference]: Finished difference Result 537 states and 846 transitions. [2022-03-20 02:51:46,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:46,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-03-20 02:51:46,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:46,512 INFO L225 Difference]: With dead ends: 537 [2022-03-20 02:51:46,512 INFO L226 Difference]: Without dead ends: 302 [2022-03-20 02:51:46,513 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:46,514 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 30 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:46,514 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 507 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 393 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-03-20 02:51:46,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-03-20 02:51:46,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 283. [2022-03-20 02:51:46,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5755395683453237) internal successors, (438), 278 states have internal predecessors, (438), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:46,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 442 transitions. [2022-03-20 02:51:46,521 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 442 transitions. Word has length 87 [2022-03-20 02:51:46,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:46,521 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 442 transitions. [2022-03-20 02:51:46,522 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:46,522 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 442 transitions. [2022-03-20 02:51:46,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-03-20 02:51:46,523 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:46,523 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:46,523 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 02:51:46,523 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:46,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:46,524 INFO L85 PathProgramCache]: Analyzing trace with hash 880442311, now seen corresponding path program 1 times [2022-03-20 02:51:46,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:46,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168928079] [2022-03-20 02:51:46,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:46,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:46,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:46,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:46,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:46,646 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 02:51:46,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:46,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168928079] [2022-03-20 02:51:46,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168928079] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:46,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:46,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:46,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529590774] [2022-03-20 02:51:46,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:46,647 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:46,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:46,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:46,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:46,648 INFO L87 Difference]: Start difference. First operand 283 states and 442 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:48,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:50,159 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:50,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:50,642 INFO L93 Difference]: Finished difference Result 655 states and 1026 transitions. [2022-03-20 02:51:50,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:50,642 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2022-03-20 02:51:50,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:50,644 INFO L225 Difference]: With dead ends: 655 [2022-03-20 02:51:50,644 INFO L226 Difference]: Without dead ends: 398 [2022-03-20 02:51:50,645 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:50,645 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 138 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:50,646 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 360 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-20 02:51:50,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2022-03-20 02:51:50,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 299. [2022-03-20 02:51:50,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.5578231292517006) internal successors, (458), 294 states have internal predecessors, (458), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:50,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 462 transitions. [2022-03-20 02:51:50,654 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 462 transitions. Word has length 100 [2022-03-20 02:51:50,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:50,654 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 462 transitions. [2022-03-20 02:51:50,654 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:50,655 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 462 transitions. [2022-03-20 02:51:50,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-20 02:51:50,656 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:50,656 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:50,656 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 02:51:50,656 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:50,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:50,656 INFO L85 PathProgramCache]: Analyzing trace with hash -130486748, now seen corresponding path program 1 times [2022-03-20 02:51:50,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:50,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327294513] [2022-03-20 02:51:50,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:50,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:50,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:50,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:50,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:50,776 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 02:51:50,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:50,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327294513] [2022-03-20 02:51:50,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327294513] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:50,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:50,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:50,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370450667] [2022-03-20 02:51:50,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:50,777 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:50,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:50,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:50,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:50,778 INFO L87 Difference]: Start difference. First operand 299 states and 462 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:54,091 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:54,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:54,555 INFO L93 Difference]: Finished difference Result 647 states and 999 transitions. [2022-03-20 02:51:54,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:54,555 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 101 [2022-03-20 02:51:54,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:54,557 INFO L225 Difference]: With dead ends: 647 [2022-03-20 02:51:54,557 INFO L226 Difference]: Without dead ends: 374 [2022-03-20 02:51:54,558 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:54,559 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 137 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:54,559 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 360 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 479 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-03-20 02:51:54,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2022-03-20 02:51:54,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 299. [2022-03-20 02:51:54,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.5442176870748299) internal successors, (454), 294 states have internal predecessors, (454), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:54,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 458 transitions. [2022-03-20 02:51:54,567 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 458 transitions. Word has length 101 [2022-03-20 02:51:54,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:54,567 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 458 transitions. [2022-03-20 02:51:54,567 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:54,568 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 458 transitions. [2022-03-20 02:51:54,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-03-20 02:51:54,568 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:54,569 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2022-03-20 02:51:54,569 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 02:51:54,569 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:54,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:54,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1045112784, now seen corresponding path program 1 times [2022-03-20 02:51:54,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:54,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375380464] [2022-03-20 02:51:54,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:54,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:54,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:54,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:54,689 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-20 02:51:54,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:54,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375380464] [2022-03-20 02:51:54,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375380464] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:54,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:54,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:54,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592173897] [2022-03-20 02:51:54,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:54,690 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:54,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:54,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:54,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:54,691 INFO L87 Difference]: Start difference. First operand 299 states and 458 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:57,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:57,339 INFO L93 Difference]: Finished difference Result 584 states and 901 transitions. [2022-03-20 02:51:57,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:57,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 102 [2022-03-20 02:51:57,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:57,344 INFO L225 Difference]: With dead ends: 584 [2022-03-20 02:51:57,344 INFO L226 Difference]: Without dead ends: 311 [2022-03-20 02:51:57,349 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:57,349 INFO L913 BasicCegarLoop]: 227 mSDtfsCounter, 19 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:57,350 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 568 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 02:51:57,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2022-03-20 02:51:57,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 299. [2022-03-20 02:51:57,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.5408163265306123) internal successors, (453), 294 states have internal predecessors, (453), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:57,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 457 transitions. [2022-03-20 02:51:57,363 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 457 transitions. Word has length 102 [2022-03-20 02:51:57,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:57,363 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 457 transitions. [2022-03-20 02:51:57,363 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:57,363 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 457 transitions. [2022-03-20 02:51:57,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-03-20 02:51:57,364 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:57,364 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:57,364 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 02:51:57,364 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:57,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:57,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1460823327, now seen corresponding path program 1 times [2022-03-20 02:51:57,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:57,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992933395] [2022-03-20 02:51:57,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:57,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:57,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:51:57,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:51:57,492 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 02:51:57,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:51:57,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992933395] [2022-03-20 02:51:57,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992933395] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:51:57,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:51:57,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:51:57,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703516580] [2022-03-20 02:51:57,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:51:57,493 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:51:57,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:51:57,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:51:57,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:51:57,494 INFO L87 Difference]: Start difference. First operand 299 states and 457 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:59,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:51:59,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:51:59,909 INFO L93 Difference]: Finished difference Result 589 states and 907 transitions. [2022-03-20 02:51:59,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:51:59,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 103 [2022-03-20 02:51:59,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:51:59,911 INFO L225 Difference]: With dead ends: 589 [2022-03-20 02:51:59,911 INFO L226 Difference]: Without dead ends: 316 [2022-03-20 02:51:59,911 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:51:59,912 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 36 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:51:59,912 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 511 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:51:59,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-03-20 02:51:59,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 299. [2022-03-20 02:51:59,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.5374149659863945) internal successors, (452), 294 states have internal predecessors, (452), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:59,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 456 transitions. [2022-03-20 02:51:59,920 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 456 transitions. Word has length 103 [2022-03-20 02:51:59,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:51:59,920 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 456 transitions. [2022-03-20 02:51:59,920 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:51:59,920 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 456 transitions. [2022-03-20 02:51:59,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-03-20 02:51:59,921 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:51:59,921 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:51:59,921 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 02:51:59,921 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:51:59,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:51:59,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1486400636, now seen corresponding path program 1 times [2022-03-20 02:51:59,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:51:59,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898010025] [2022-03-20 02:51:59,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:51:59,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:51:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:00,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:00,036 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-20 02:52:00,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:00,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898010025] [2022-03-20 02:52:00,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898010025] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:00,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:00,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:00,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129653646] [2022-03-20 02:52:00,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:00,038 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:00,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:00,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:00,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:00,039 INFO L87 Difference]: Start difference. First operand 299 states and 456 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:01,136 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:03,152 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:05,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:05,146 INFO L93 Difference]: Finished difference Result 579 states and 892 transitions. [2022-03-20 02:52:05,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:05,146 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 105 [2022-03-20 02:52:05,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:05,148 INFO L225 Difference]: With dead ends: 579 [2022-03-20 02:52:05,148 INFO L226 Difference]: Without dead ends: 306 [2022-03-20 02:52:05,149 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:52:05,149 INFO L913 BasicCegarLoop]: 206 mSDtfsCounter, 26 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:05,149 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 525 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 374 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-20 02:52:05,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2022-03-20 02:52:05,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 299. [2022-03-20 02:52:05,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.534013605442177) internal successors, (451), 294 states have internal predecessors, (451), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:05,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 455 transitions. [2022-03-20 02:52:05,156 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 455 transitions. Word has length 105 [2022-03-20 02:52:05,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:05,157 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 455 transitions. [2022-03-20 02:52:05,157 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:05,157 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 455 transitions. [2022-03-20 02:52:05,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-20 02:52:05,158 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:05,158 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:05,158 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 02:52:05,158 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:05,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:05,159 INFO L85 PathProgramCache]: Analyzing trace with hash -541256236, now seen corresponding path program 1 times [2022-03-20 02:52:05,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:05,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812742789] [2022-03-20 02:52:05,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:05,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:05,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:05,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:05,283 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 02:52:05,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:05,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812742789] [2022-03-20 02:52:05,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812742789] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:05,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:05,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:05,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940087467] [2022-03-20 02:52:05,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:05,284 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:05,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:05,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:05,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:05,285 INFO L87 Difference]: Start difference. First operand 299 states and 455 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:06,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:08,796 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:09,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:09,968 INFO L93 Difference]: Finished difference Result 659 states and 1007 transitions. [2022-03-20 02:52:09,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:09,968 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-03-20 02:52:09,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:09,970 INFO L225 Difference]: With dead ends: 659 [2022-03-20 02:52:09,970 INFO L226 Difference]: Without dead ends: 386 [2022-03-20 02:52:09,971 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:52:09,971 INFO L913 BasicCegarLoop]: 189 mSDtfsCounter, 80 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:09,972 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 493 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-03-20 02:52:09,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2022-03-20 02:52:09,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 327. [2022-03-20 02:52:09,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 322 states have (on average 1.531055900621118) internal successors, (493), 322 states have internal predecessors, (493), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:09,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 497 transitions. [2022-03-20 02:52:09,980 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 497 transitions. Word has length 109 [2022-03-20 02:52:09,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:09,980 INFO L478 AbstractCegarLoop]: Abstraction has 327 states and 497 transitions. [2022-03-20 02:52:09,980 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:09,980 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 497 transitions. [2022-03-20 02:52:09,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-20 02:52:09,981 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:09,982 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:09,982 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 02:52:09,982 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:09,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:09,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1420318422, now seen corresponding path program 1 times [2022-03-20 02:52:09,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:09,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528383709] [2022-03-20 02:52:09,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:09,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:10,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:10,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:10,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:10,108 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 02:52:10,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:10,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528383709] [2022-03-20 02:52:10,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528383709] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:10,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:10,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:10,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258291461] [2022-03-20 02:52:10,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:10,109 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:10,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:10,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:10,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:10,110 INFO L87 Difference]: Start difference. First operand 327 states and 497 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:13,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:13,634 INFO L93 Difference]: Finished difference Result 743 states and 1134 transitions. [2022-03-20 02:52:13,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:13,635 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-03-20 02:52:13,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:13,637 INFO L225 Difference]: With dead ends: 743 [2022-03-20 02:52:13,637 INFO L226 Difference]: Without dead ends: 442 [2022-03-20 02:52:13,637 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:52:13,638 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 127 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:13,638 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 360 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-20 02:52:13,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2022-03-20 02:52:13,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 325. [2022-03-20 02:52:13,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 320 states have (on average 1.528125) internal successors, (489), 320 states have internal predecessors, (489), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:13,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 493 transitions. [2022-03-20 02:52:13,646 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 493 transitions. Word has length 109 [2022-03-20 02:52:13,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:13,646 INFO L478 AbstractCegarLoop]: Abstraction has 325 states and 493 transitions. [2022-03-20 02:52:13,647 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:13,647 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 493 transitions. [2022-03-20 02:52:13,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-20 02:52:13,648 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:13,648 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:13,648 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 02:52:13,648 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:13,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:13,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1022958803, now seen corresponding path program 1 times [2022-03-20 02:52:13,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:13,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577045599] [2022-03-20 02:52:13,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:13,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:13,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:13,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:13,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:13,769 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 02:52:13,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:13,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577045599] [2022-03-20 02:52:13,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577045599] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:13,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:13,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:13,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406903309] [2022-03-20 02:52:13,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:13,770 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:13,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:13,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:13,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:13,771 INFO L87 Difference]: Start difference. First operand 325 states and 493 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:16,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:16,554 INFO L93 Difference]: Finished difference Result 709 states and 1079 transitions. [2022-03-20 02:52:16,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:16,555 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-03-20 02:52:16,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:16,559 INFO L225 Difference]: With dead ends: 709 [2022-03-20 02:52:16,560 INFO L226 Difference]: Without dead ends: 410 [2022-03-20 02:52:16,561 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:52:16,562 INFO L913 BasicCegarLoop]: 189 mSDtfsCounter, 77 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:16,562 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 493 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-20 02:52:16,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-03-20 02:52:16,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 354. [2022-03-20 02:52:16,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 349 states have (on average 1.524355300859599) internal successors, (532), 349 states have internal predecessors, (532), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:16,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 536 transitions. [2022-03-20 02:52:16,571 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 536 transitions. Word has length 110 [2022-03-20 02:52:16,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:16,572 INFO L478 AbstractCegarLoop]: Abstraction has 354 states and 536 transitions. [2022-03-20 02:52:16,572 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:16,572 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 536 transitions. [2022-03-20 02:52:16,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-20 02:52:16,573 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:16,573 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:16,573 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 02:52:16,574 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:16,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:16,574 INFO L85 PathProgramCache]: Analyzing trace with hash 623048725, now seen corresponding path program 1 times [2022-03-20 02:52:16,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:16,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146590223] [2022-03-20 02:52:16,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:16,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:16,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:16,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:16,700 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 02:52:16,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:16,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146590223] [2022-03-20 02:52:16,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146590223] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:16,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:16,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:16,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516400378] [2022-03-20 02:52:16,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:16,701 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:16,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:16,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:16,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:16,702 INFO L87 Difference]: Start difference. First operand 354 states and 536 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:19,191 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:20,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:20,162 INFO L93 Difference]: Finished difference Result 735 states and 1117 transitions. [2022-03-20 02:52:20,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:20,163 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-03-20 02:52:20,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:20,165 INFO L225 Difference]: With dead ends: 735 [2022-03-20 02:52:20,165 INFO L226 Difference]: Without dead ends: 407 [2022-03-20 02:52:20,165 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:52:20,166 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 70 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:20,166 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 499 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-20 02:52:20,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-03-20 02:52:20,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 359. [2022-03-20 02:52:20,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 354 states have (on average 1.5225988700564972) internal successors, (539), 354 states have internal predecessors, (539), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:20,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 543 transitions. [2022-03-20 02:52:20,175 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 543 transitions. Word has length 110 [2022-03-20 02:52:20,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:20,175 INFO L478 AbstractCegarLoop]: Abstraction has 359 states and 543 transitions. [2022-03-20 02:52:20,175 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:20,175 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 543 transitions. [2022-03-20 02:52:20,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-20 02:52:20,176 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:20,176 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:20,177 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 02:52:20,177 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:20,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:20,177 INFO L85 PathProgramCache]: Analyzing trace with hash -343686549, now seen corresponding path program 1 times [2022-03-20 02:52:20,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:20,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507495430] [2022-03-20 02:52:20,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:20,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:20,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:20,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:20,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:20,305 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-03-20 02:52:20,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:20,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507495430] [2022-03-20 02:52:20,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507495430] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:20,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:20,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:20,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171800444] [2022-03-20 02:52:20,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:20,306 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:20,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:20,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:20,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:20,307 INFO L87 Difference]: Start difference. First operand 359 states and 543 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:23,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:25,415 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:25,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:25,913 INFO L93 Difference]: Finished difference Result 738 states and 1123 transitions. [2022-03-20 02:52:25,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:25,914 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-03-20 02:52:25,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:25,915 INFO L225 Difference]: With dead ends: 738 [2022-03-20 02:52:25,915 INFO L226 Difference]: Without dead ends: 405 [2022-03-20 02:52:25,916 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:52:25,916 INFO L913 BasicCegarLoop]: 245 mSDtfsCounter, 36 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:25,917 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 603 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 456 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-03-20 02:52:25,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-03-20 02:52:25,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 383. [2022-03-20 02:52:25,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 378 states have (on average 1.5211640211640212) internal successors, (575), 378 states have internal predecessors, (575), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:25,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 579 transitions. [2022-03-20 02:52:25,926 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 579 transitions. Word has length 110 [2022-03-20 02:52:25,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:25,926 INFO L478 AbstractCegarLoop]: Abstraction has 383 states and 579 transitions. [2022-03-20 02:52:25,926 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:25,926 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 579 transitions. [2022-03-20 02:52:25,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-03-20 02:52:25,927 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:25,927 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:25,928 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 02:52:25,928 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:25,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:25,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1495666253, now seen corresponding path program 1 times [2022-03-20 02:52:25,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:25,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277599282] [2022-03-20 02:52:25,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:25,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:25,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:26,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:26,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:26,094 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 02:52:26,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:26,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277599282] [2022-03-20 02:52:26,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277599282] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:26,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:26,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:26,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497974774] [2022-03-20 02:52:26,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:26,095 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:26,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:26,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:26,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:26,096 INFO L87 Difference]: Start difference. First operand 383 states and 579 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:27,749 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:29,841 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:30,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:30,621 INFO L93 Difference]: Finished difference Result 855 states and 1297 transitions. [2022-03-20 02:52:30,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:30,622 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 121 [2022-03-20 02:52:30,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:30,624 INFO L225 Difference]: With dead ends: 855 [2022-03-20 02:52:30,624 INFO L226 Difference]: Without dead ends: 498 [2022-03-20 02:52:30,625 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:52:30,625 INFO L913 BasicCegarLoop]: 119 mSDtfsCounter, 116 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:30,626 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 346 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-20 02:52:30,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2022-03-20 02:52:30,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 420. [2022-03-20 02:52:30,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 415 states have (on average 1.5253012048192771) internal successors, (633), 415 states have internal predecessors, (633), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:30,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 637 transitions. [2022-03-20 02:52:30,636 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 637 transitions. Word has length 121 [2022-03-20 02:52:30,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:30,636 INFO L478 AbstractCegarLoop]: Abstraction has 420 states and 637 transitions. [2022-03-20 02:52:30,637 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:30,637 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 637 transitions. [2022-03-20 02:52:30,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-20 02:52:30,638 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:30,638 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:30,638 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 02:52:30,638 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:30,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:30,639 INFO L85 PathProgramCache]: Analyzing trace with hash 370746785, now seen corresponding path program 1 times [2022-03-20 02:52:30,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:30,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010254962] [2022-03-20 02:52:30,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:30,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:30,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:30,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:30,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:30,771 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 02:52:30,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:30,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010254962] [2022-03-20 02:52:30,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010254962] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:30,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:30,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:30,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628975500] [2022-03-20 02:52:30,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:30,773 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:30,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:30,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:30,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:30,774 INFO L87 Difference]: Start difference. First operand 420 states and 637 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:33,524 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:34,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:34,845 INFO L93 Difference]: Finished difference Result 889 states and 1349 transitions. [2022-03-20 02:52:34,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:34,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-20 02:52:34,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:34,847 INFO L225 Difference]: With dead ends: 889 [2022-03-20 02:52:34,847 INFO L226 Difference]: Without dead ends: 495 [2022-03-20 02:52:34,848 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:52:34,848 INFO L913 BasicCegarLoop]: 119 mSDtfsCounter, 115 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:34,848 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 346 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-20 02:52:34,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2022-03-20 02:52:34,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 420. [2022-03-20 02:52:34,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 415 states have (on average 1.5204819277108435) internal successors, (631), 415 states have internal predecessors, (631), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:34,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 635 transitions. [2022-03-20 02:52:34,858 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 635 transitions. Word has length 122 [2022-03-20 02:52:34,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:34,859 INFO L478 AbstractCegarLoop]: Abstraction has 420 states and 635 transitions. [2022-03-20 02:52:34,859 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:34,859 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 635 transitions. [2022-03-20 02:52:34,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-03-20 02:52:34,860 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:34,860 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:34,861 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-20 02:52:34,861 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:34,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:34,861 INFO L85 PathProgramCache]: Analyzing trace with hash 949148907, now seen corresponding path program 1 times [2022-03-20 02:52:34,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:34,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709718779] [2022-03-20 02:52:34,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:34,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:34,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:35,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:35,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:35,044 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-03-20 02:52:35,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:35,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709718779] [2022-03-20 02:52:35,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709718779] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:35,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:35,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:35,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285755684] [2022-03-20 02:52:35,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:35,045 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:35,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:35,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:35,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:35,046 INFO L87 Difference]: Start difference. First operand 420 states and 635 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:37,712 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 [] [2022-03-20 02:52:38,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:38,451 INFO L93 Difference]: Finished difference Result 860 states and 1303 transitions. [2022-03-20 02:52:38,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:38,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 126 [2022-03-20 02:52:38,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:38,453 INFO L225 Difference]: With dead ends: 860 [2022-03-20 02:52:38,453 INFO L226 Difference]: Without dead ends: 466 [2022-03-20 02:52:38,454 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:52:38,455 INFO L913 BasicCegarLoop]: 206 mSDtfsCounter, 85 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:38,455 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 525 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-20 02:52:38,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2022-03-20 02:52:38,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 420. [2022-03-20 02:52:38,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 415 states have (on average 1.5180722891566265) internal successors, (630), 415 states have internal predecessors, (630), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:38,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 634 transitions. [2022-03-20 02:52:38,464 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 634 transitions. Word has length 126 [2022-03-20 02:52:38,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:38,464 INFO L478 AbstractCegarLoop]: Abstraction has 420 states and 634 transitions. [2022-03-20 02:52:38,465 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:38,465 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 634 transitions. [2022-03-20 02:52:38,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-03-20 02:52:38,466 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:38,466 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:38,466 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-20 02:52:38,466 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:38,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:38,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1788182569, now seen corresponding path program 1 times [2022-03-20 02:52:38,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:38,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237184456] [2022-03-20 02:52:38,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:38,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:38,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:38,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:38,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:38,592 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-03-20 02:52:38,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:38,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237184456] [2022-03-20 02:52:38,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237184456] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:38,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:38,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:38,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993614331] [2022-03-20 02:52:38,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:38,593 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:38,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:38,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:38,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:38,593 INFO L87 Difference]: Start difference. First operand 420 states and 634 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:40,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:40,811 INFO L93 Difference]: Finished difference Result 836 states and 1268 transitions. [2022-03-20 02:52:40,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:40,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 126 [2022-03-20 02:52:40,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:40,813 INFO L225 Difference]: With dead ends: 836 [2022-03-20 02:52:40,814 INFO L226 Difference]: Without dead ends: 442 [2022-03-20 02:52:40,814 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:52:40,815 INFO L913 BasicCegarLoop]: 245 mSDtfsCounter, 46 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:40,815 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 603 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 02:52:40,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2022-03-20 02:52:40,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 420. [2022-03-20 02:52:40,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 415 states have (on average 1.5156626506024096) internal successors, (629), 415 states have internal predecessors, (629), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:40,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 633 transitions. [2022-03-20 02:52:40,825 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 633 transitions. Word has length 126 [2022-03-20 02:52:40,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:40,826 INFO L478 AbstractCegarLoop]: Abstraction has 420 states and 633 transitions. [2022-03-20 02:52:40,826 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:40,826 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 633 transitions. [2022-03-20 02:52:40,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-03-20 02:52:40,827 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:40,827 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:40,827 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-20 02:52:40,827 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:40,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:40,828 INFO L85 PathProgramCache]: Analyzing trace with hash 46620656, now seen corresponding path program 1 times [2022-03-20 02:52:40,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:40,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783478155] [2022-03-20 02:52:40,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:40,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:40,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:40,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:40,952 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-03-20 02:52:40,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:40,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783478155] [2022-03-20 02:52:40,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783478155] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:40,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:40,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:40,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159760570] [2022-03-20 02:52:40,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:40,953 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:40,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:40,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:40,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:40,954 INFO L87 Difference]: Start difference. First operand 420 states and 633 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:43,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:44,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:44,365 INFO L93 Difference]: Finished difference Result 889 states and 1341 transitions. [2022-03-20 02:52:44,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:44,366 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 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 128 [2022-03-20 02:52:44,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:44,367 INFO L225 Difference]: With dead ends: 889 [2022-03-20 02:52:44,367 INFO L226 Difference]: Without dead ends: 495 [2022-03-20 02:52:44,368 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:52:44,368 INFO L913 BasicCegarLoop]: 119 mSDtfsCounter, 137 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:44,369 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 346 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-20 02:52:44,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2022-03-20 02:52:44,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 420. [2022-03-20 02:52:44,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 415 states have (on average 1.4963855421686747) internal successors, (621), 415 states have internal predecessors, (621), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:44,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 625 transitions. [2022-03-20 02:52:44,378 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 625 transitions. Word has length 128 [2022-03-20 02:52:44,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:44,378 INFO L478 AbstractCegarLoop]: Abstraction has 420 states and 625 transitions. [2022-03-20 02:52:44,378 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:44,378 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 625 transitions. [2022-03-20 02:52:44,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-03-20 02:52:44,379 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:44,379 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:44,380 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-20 02:52:44,380 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:44,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:44,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1085696608, now seen corresponding path program 1 times [2022-03-20 02:52:44,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:44,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088793775] [2022-03-20 02:52:44,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:44,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:44,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:44,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:44,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:44,511 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 02:52:44,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:44,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088793775] [2022-03-20 02:52:44,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088793775] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:44,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:44,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:44,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879710092] [2022-03-20 02:52:44,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:44,513 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:44,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:44,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:44,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:44,513 INFO L87 Difference]: Start difference. First operand 420 states and 625 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:47,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:47,303 INFO L93 Difference]: Finished difference Result 929 states and 1386 transitions. [2022-03-20 02:52:47,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:47,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 130 [2022-03-20 02:52:47,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:47,304 INFO L225 Difference]: With dead ends: 929 [2022-03-20 02:52:47,305 INFO L226 Difference]: Without dead ends: 535 [2022-03-20 02:52:47,305 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:52:47,306 INFO L913 BasicCegarLoop]: 119 mSDtfsCounter, 107 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:47,306 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 347 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-20 02:52:47,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-03-20 02:52:47,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 463. [2022-03-20 02:52:47,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 458 states have (on average 1.5) internal successors, (687), 458 states have internal predecessors, (687), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:47,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 691 transitions. [2022-03-20 02:52:47,316 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 691 transitions. Word has length 130 [2022-03-20 02:52:47,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:47,316 INFO L478 AbstractCegarLoop]: Abstraction has 463 states and 691 transitions. [2022-03-20 02:52:47,316 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:47,316 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 691 transitions. [2022-03-20 02:52:47,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-20 02:52:47,318 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:47,318 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:47,318 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-20 02:52:47,318 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:47,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:47,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1183688361, now seen corresponding path program 1 times [2022-03-20 02:52:47,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:47,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430349654] [2022-03-20 02:52:47,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:47,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:47,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:47,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:47,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:47,437 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-20 02:52:47,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:47,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430349654] [2022-03-20 02:52:47,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430349654] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:47,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:47,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:47,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966318068] [2022-03-20 02:52:47,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:47,438 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:47,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:47,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:47,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:47,439 INFO L87 Difference]: Start difference. First operand 463 states and 691 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:48,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:49,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:50,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:50,829 INFO L93 Difference]: Finished difference Result 936 states and 1401 transitions. [2022-03-20 02:52:50,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:50,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-20 02:52:50,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:50,833 INFO L225 Difference]: With dead ends: 936 [2022-03-20 02:52:50,833 INFO L226 Difference]: Without dead ends: 499 [2022-03-20 02:52:50,834 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:52:50,835 INFO L913 BasicCegarLoop]: 207 mSDtfsCounter, 64 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:50,835 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 529 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-20 02:52:50,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2022-03-20 02:52:50,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 463. [2022-03-20 02:52:50,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 458 states have (on average 1.497816593886463) internal successors, (686), 458 states have internal predecessors, (686), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:50,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 690 transitions. [2022-03-20 02:52:50,846 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 690 transitions. Word has length 131 [2022-03-20 02:52:50,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:50,846 INFO L478 AbstractCegarLoop]: Abstraction has 463 states and 690 transitions. [2022-03-20 02:52:50,846 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:50,846 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 690 transitions. [2022-03-20 02:52:50,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-20 02:52:50,848 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:50,848 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:50,848 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-20 02:52:50,848 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:50,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:50,848 INFO L85 PathProgramCache]: Analyzing trace with hash -22008148, now seen corresponding path program 1 times [2022-03-20 02:52:50,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:50,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620890133] [2022-03-20 02:52:50,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:50,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:51,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:51,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:51,007 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 02:52:51,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:51,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620890133] [2022-03-20 02:52:51,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620890133] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:51,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:51,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:52:51,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93135588] [2022-03-20 02:52:51,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:51,008 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:52:51,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:51,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:52:51,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:52:51,009 INFO L87 Difference]: Start difference. First operand 463 states and 690 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:54,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:55,965 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:56,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:56,431 INFO L93 Difference]: Finished difference Result 975 states and 1455 transitions. [2022-03-20 02:52:56,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:52:56,432 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-20 02:52:56,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:56,434 INFO L225 Difference]: With dead ends: 975 [2022-03-20 02:52:56,434 INFO L226 Difference]: Without dead ends: 536 [2022-03-20 02:52:56,435 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:52:56,436 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 108 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:56,436 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 360 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-03-20 02:52:56,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2022-03-20 02:52:56,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 465. [2022-03-20 02:52:56,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 460 states have (on average 1.4978260869565216) internal successors, (689), 460 states have internal predecessors, (689), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:56,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 693 transitions. [2022-03-20 02:52:56,447 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 693 transitions. Word has length 131 [2022-03-20 02:52:56,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:56,447 INFO L478 AbstractCegarLoop]: Abstraction has 465 states and 693 transitions. [2022-03-20 02:52:56,448 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:56,448 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 693 transitions. [2022-03-20 02:52:56,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-20 02:52:56,449 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:56,449 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:56,449 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-20 02:52:56,449 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:56,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:56,450 INFO L85 PathProgramCache]: Analyzing trace with hash 141167833, now seen corresponding path program 1 times [2022-03-20 02:52:56,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:56,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634140840] [2022-03-20 02:52:56,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:56,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:56,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:56,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:56,578 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-03-20 02:52:56,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:56,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634140840] [2022-03-20 02:52:56,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634140840] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:56,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:56,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:52:56,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541182919] [2022-03-20 02:52:56,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:56,579 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:52:56,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:56,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:52:56,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:52:56,580 INFO L87 Difference]: Start difference. First operand 465 states and 693 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:57,818 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:59,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:52:59,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:52:59,759 INFO L93 Difference]: Finished difference Result 1293 states and 1945 transitions. [2022-03-20 02:52:59,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:52:59,760 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-20 02:52:59,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:52:59,763 INFO L225 Difference]: With dead ends: 1293 [2022-03-20 02:52:59,763 INFO L226 Difference]: Without dead ends: 854 [2022-03-20 02:52:59,764 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:52:59,764 INFO L913 BasicCegarLoop]: 247 mSDtfsCounter, 134 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:52:59,765 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 441 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 02:52:59,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2022-03-20 02:52:59,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 854. [2022-03-20 02:52:59,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 849 states have (on average 1.4958775029446407) internal successors, (1270), 849 states have internal predecessors, (1270), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:59,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1274 transitions. [2022-03-20 02:52:59,795 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1274 transitions. Word has length 131 [2022-03-20 02:52:59,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:52:59,796 INFO L478 AbstractCegarLoop]: Abstraction has 854 states and 1274 transitions. [2022-03-20 02:52:59,796 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:52:59,796 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1274 transitions. [2022-03-20 02:52:59,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-20 02:52:59,798 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:52:59,798 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:52:59,798 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-20 02:52:59,798 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:52:59,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:52:59,799 INFO L85 PathProgramCache]: Analyzing trace with hash 2017650651, now seen corresponding path program 1 times [2022-03-20 02:52:59,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:52:59,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817429488] [2022-03-20 02:52:59,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:52:59,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:52:59,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:59,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:52:59,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:52:59,903 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-03-20 02:52:59,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:52:59,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817429488] [2022-03-20 02:52:59,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817429488] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:52:59,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:52:59,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:52:59,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672668369] [2022-03-20 02:52:59,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:52:59,905 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:52:59,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:52:59,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:52:59,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:52:59,905 INFO L87 Difference]: Start difference. First operand 854 states and 1274 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:01,481 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:02,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:02,329 INFO L93 Difference]: Finished difference Result 1709 states and 2555 transitions. [2022-03-20 02:53:02,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:53:02,329 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-20 02:53:02,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:02,331 INFO L225 Difference]: With dead ends: 1709 [2022-03-20 02:53:02,332 INFO L226 Difference]: Without dead ends: 881 [2022-03-20 02:53:02,333 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:53:02,333 INFO L913 BasicCegarLoop]: 223 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:02,333 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 417 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:53:02,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2022-03-20 02:53:02,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 881. [2022-03-20 02:53:02,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 876 states have (on average 1.4897260273972603) internal successors, (1305), 876 states have internal predecessors, (1305), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:02,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1309 transitions. [2022-03-20 02:53:02,351 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1309 transitions. Word has length 131 [2022-03-20 02:53:02,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:02,351 INFO L478 AbstractCegarLoop]: Abstraction has 881 states and 1309 transitions. [2022-03-20 02:53:02,351 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:02,351 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1309 transitions. [2022-03-20 02:53:02,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-20 02:53:02,353 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:02,353 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:53:02,354 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-20 02:53:02,354 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:02,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:02,354 INFO L85 PathProgramCache]: Analyzing trace with hash 2136092125, now seen corresponding path program 1 times [2022-03-20 02:53:02,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:02,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161591013] [2022-03-20 02:53:02,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:02,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:02,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:02,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:02,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:02,458 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-03-20 02:53:02,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:02,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161591013] [2022-03-20 02:53:02,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161591013] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:02,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:02,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:53:02,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074872757] [2022-03-20 02:53:02,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:02,459 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:53:02,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:02,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:53:02,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:53:02,460 INFO L87 Difference]: Start difference. First operand 881 states and 1309 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:03,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:03,699 INFO L93 Difference]: Finished difference Result 1738 states and 2591 transitions. [2022-03-20 02:53:03,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:53:03,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-20 02:53:03,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:03,703 INFO L225 Difference]: With dead ends: 1738 [2022-03-20 02:53:03,703 INFO L226 Difference]: Without dead ends: 883 [2022-03-20 02:53:03,705 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:53:03,705 INFO L913 BasicCegarLoop]: 211 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:03,706 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 396 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-03-20 02:53:03,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2022-03-20 02:53:03,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883. [2022-03-20 02:53:03,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 878 states have (on average 1.4886104783599088) internal successors, (1307), 878 states have internal predecessors, (1307), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:03,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1311 transitions. [2022-03-20 02:53:03,746 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1311 transitions. Word has length 131 [2022-03-20 02:53:03,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:03,746 INFO L478 AbstractCegarLoop]: Abstraction has 883 states and 1311 transitions. [2022-03-20 02:53:03,746 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:03,747 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1311 transitions. [2022-03-20 02:53:03,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-20 02:53:03,749 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:03,749 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:53:03,749 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-20 02:53:03,749 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:03,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:03,750 INFO L85 PathProgramCache]: Analyzing trace with hash -997450557, now seen corresponding path program 1 times [2022-03-20 02:53:03,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:03,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064420895] [2022-03-20 02:53:03,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:03,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:03,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:03,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:03,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:03,887 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-20 02:53:03,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:03,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064420895] [2022-03-20 02:53:03,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064420895] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:03,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:03,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:53:03,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029240045] [2022-03-20 02:53:03,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:03,888 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:53:03,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:03,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:53:03,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:53:03,889 INFO L87 Difference]: Start difference. First operand 883 states and 1311 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:05,121 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:06,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:06,994 INFO L93 Difference]: Finished difference Result 2177 states and 3253 transitions. [2022-03-20 02:53:06,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:53:06,994 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-20 02:53:06,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:06,997 INFO L225 Difference]: With dead ends: 2177 [2022-03-20 02:53:06,997 INFO L226 Difference]: Without dead ends: 1322 [2022-03-20 02:53:06,999 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:53:06,999 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:07,000 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 380 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-20 02:53:07,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states. [2022-03-20 02:53:07,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1320. [2022-03-20 02:53:07,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1315 states have (on average 1.4958174904942967) internal successors, (1967), 1315 states have internal predecessors, (1967), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:07,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 1971 transitions. [2022-03-20 02:53:07,028 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 1971 transitions. Word has length 133 [2022-03-20 02:53:07,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:07,028 INFO L478 AbstractCegarLoop]: Abstraction has 1320 states and 1971 transitions. [2022-03-20 02:53:07,028 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:07,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 1971 transitions. [2022-03-20 02:53:07,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-20 02:53:07,031 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:07,031 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:53:07,031 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-20 02:53:07,031 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:07,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:07,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1473303164, now seen corresponding path program 1 times [2022-03-20 02:53:07,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:07,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066447366] [2022-03-20 02:53:07,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:07,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:07,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:07,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:07,183 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-20 02:53:07,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:07,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066447366] [2022-03-20 02:53:07,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066447366] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:07,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:07,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:53:07,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618241046] [2022-03-20 02:53:07,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:07,184 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:53:07,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:07,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:53:07,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:53:07,185 INFO L87 Difference]: Start difference. First operand 1320 states and 1971 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:09,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:10,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:10,274 INFO L93 Difference]: Finished difference Result 1761 states and 2635 transitions. [2022-03-20 02:53:10,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:53:10,274 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-03-20 02:53:10,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:10,279 INFO L225 Difference]: With dead ends: 1761 [2022-03-20 02:53:10,279 INFO L226 Difference]: Without dead ends: 1759 [2022-03-20 02:53:10,280 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:53:10,280 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 165 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:10,281 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 378 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-20 02:53:10,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2022-03-20 02:53:10,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 1757. [2022-03-20 02:53:10,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1757 states, 1752 states have (on average 1.5) internal successors, (2628), 1752 states have internal predecessors, (2628), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:10,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1757 states to 1757 states and 2632 transitions. [2022-03-20 02:53:10,319 INFO L78 Accepts]: Start accepts. Automaton has 1757 states and 2632 transitions. Word has length 134 [2022-03-20 02:53:10,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:10,319 INFO L478 AbstractCegarLoop]: Abstraction has 1757 states and 2632 transitions. [2022-03-20 02:53:10,319 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:10,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1757 states and 2632 transitions. [2022-03-20 02:53:10,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-03-20 02:53:10,322 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:10,322 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:53:10,322 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-20 02:53:10,322 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:10,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:10,322 INFO L85 PathProgramCache]: Analyzing trace with hash -924650012, now seen corresponding path program 1 times [2022-03-20 02:53:10,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:10,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510918512] [2022-03-20 02:53:10,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:10,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:10,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:10,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:10,446 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 02:53:10,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:10,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510918512] [2022-03-20 02:53:10,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510918512] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:10,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:10,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:10,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712446024] [2022-03-20 02:53:10,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:10,447 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:10,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:10,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:10,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:10,448 INFO L87 Difference]: Start difference. First operand 1757 states and 2632 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:12,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:13,454 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:15,609 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:16,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:16,107 INFO L93 Difference]: Finished difference Result 4073 states and 6093 transitions. [2022-03-20 02:53:16,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:16,107 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 140 [2022-03-20 02:53:16,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:16,113 INFO L225 Difference]: With dead ends: 4073 [2022-03-20 02:53:16,113 INFO L226 Difference]: Without dead ends: 2344 [2022-03-20 02:53:16,115 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:53:16,115 INFO L913 BasicCegarLoop]: 134 mSDtfsCounter, 116 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:16,116 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 376 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-03-20 02:53:16,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2344 states. [2022-03-20 02:53:16,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2344 to 1993. [2022-03-20 02:53:16,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1993 states, 1988 states have (on average 1.4974849094567404) internal successors, (2977), 1988 states have internal predecessors, (2977), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:16,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1993 states to 1993 states and 2981 transitions. [2022-03-20 02:53:16,161 INFO L78 Accepts]: Start accepts. Automaton has 1993 states and 2981 transitions. Word has length 140 [2022-03-20 02:53:16,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:16,161 INFO L478 AbstractCegarLoop]: Abstraction has 1993 states and 2981 transitions. [2022-03-20 02:53:16,161 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:16,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1993 states and 2981 transitions. [2022-03-20 02:53:16,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-03-20 02:53:16,165 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:16,165 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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] [2022-03-20 02:53:16,165 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-20 02:53:16,165 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:16,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:16,166 INFO L85 PathProgramCache]: Analyzing trace with hash -516884985, now seen corresponding path program 1 times [2022-03-20 02:53:16,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:16,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025212568] [2022-03-20 02:53:16,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:16,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:16,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:16,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:16,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:16,296 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-03-20 02:53:16,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:16,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025212568] [2022-03-20 02:53:16,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025212568] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:16,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:16,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:16,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019138400] [2022-03-20 02:53:16,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:16,298 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:16,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:16,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:16,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:16,298 INFO L87 Difference]: Start difference. First operand 1993 states and 2981 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:19,640 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:20,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:20,487 INFO L93 Difference]: Finished difference Result 4054 states and 6059 transitions. [2022-03-20 02:53:20,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:20,487 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2022-03-20 02:53:20,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:20,494 INFO L225 Difference]: With dead ends: 4054 [2022-03-20 02:53:20,495 INFO L226 Difference]: Without dead ends: 2089 [2022-03-20 02:53:20,498 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:53:20,498 INFO L913 BasicCegarLoop]: 227 mSDtfsCounter, 38 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:20,499 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 568 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-03-20 02:53:20,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2022-03-20 02:53:20,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 1993. [2022-03-20 02:53:20,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1993 states, 1988 states have (on average 1.4954728370221329) internal successors, (2973), 1988 states have internal predecessors, (2973), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:20,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1993 states to 1993 states and 2977 transitions. [2022-03-20 02:53:20,563 INFO L78 Accepts]: Start accepts. Automaton has 1993 states and 2977 transitions. Word has length 167 [2022-03-20 02:53:20,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:20,563 INFO L478 AbstractCegarLoop]: Abstraction has 1993 states and 2977 transitions. [2022-03-20 02:53:20,563 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:20,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1993 states and 2977 transitions. [2022-03-20 02:53:20,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-03-20 02:53:20,566 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:20,567 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:53:20,567 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-20 02:53:20,567 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:20,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:20,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1391450317, now seen corresponding path program 1 times [2022-03-20 02:53:20,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:20,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597241701] [2022-03-20 02:53:20,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:20,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:20,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:20,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:20,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:20,734 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-03-20 02:53:20,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:20,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597241701] [2022-03-20 02:53:20,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597241701] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:20,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:20,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 02:53:20,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558729594] [2022-03-20 02:53:20,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:20,736 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 02:53:20,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:20,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 02:53:20,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:53:20,736 INFO L87 Difference]: Start difference. First operand 1993 states and 2977 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:22,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:24,941 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:25,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:25,541 INFO L93 Difference]: Finished difference Result 3998 states and 5974 transitions. [2022-03-20 02:53:25,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 02:53:25,542 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 168 [2022-03-20 02:53:25,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:25,558 INFO L225 Difference]: With dead ends: 3998 [2022-03-20 02:53:25,559 INFO L226 Difference]: Without dead ends: 2033 [2022-03-20 02:53:25,562 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-20 02:53:25,563 INFO L913 BasicCegarLoop]: 117 mSDtfsCounter, 147 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:25,564 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 375 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-03-20 02:53:25,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2033 states. [2022-03-20 02:53:25,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2033 to 2029. [2022-03-20 02:53:25,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2029 states, 2024 states have (on average 1.490612648221344) internal successors, (3017), 2024 states have internal predecessors, (3017), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:25,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2029 states to 2029 states and 3021 transitions. [2022-03-20 02:53:25,635 INFO L78 Accepts]: Start accepts. Automaton has 2029 states and 3021 transitions. Word has length 168 [2022-03-20 02:53:25,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:25,635 INFO L478 AbstractCegarLoop]: Abstraction has 2029 states and 3021 transitions. [2022-03-20 02:53:25,635 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:25,635 INFO L276 IsEmpty]: Start isEmpty. Operand 2029 states and 3021 transitions. [2022-03-20 02:53:25,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-03-20 02:53:25,638 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:25,639 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:53:25,639 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-20 02:53:25,639 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:25,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:25,639 INFO L85 PathProgramCache]: Analyzing trace with hash 2037465434, now seen corresponding path program 1 times [2022-03-20 02:53:25,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:25,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033315834] [2022-03-20 02:53:25,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:25,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:25,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:25,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:25,771 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-03-20 02:53:25,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:25,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033315834] [2022-03-20 02:53:25,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033315834] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:25,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:25,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:53:25,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132634617] [2022-03-20 02:53:25,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:25,773 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:53:25,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:25,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:53:25,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:53:25,775 INFO L87 Difference]: Start difference. First operand 2029 states and 3021 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:27,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:27,742 INFO L93 Difference]: Finished difference Result 4489 states and 6699 transitions. [2022-03-20 02:53:27,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:53:27,743 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 171 [2022-03-20 02:53:27,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:27,750 INFO L225 Difference]: With dead ends: 4489 [2022-03-20 02:53:27,751 INFO L226 Difference]: Without dead ends: 2488 [2022-03-20 02:53:27,754 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:53:27,755 INFO L913 BasicCegarLoop]: 381 mSDtfsCounter, 143 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:27,755 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 575 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-20 02:53:27,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2488 states. [2022-03-20 02:53:27,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2488 to 2488. [2022-03-20 02:53:27,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2488 states, 2483 states have (on average 1.4893274265002014) internal successors, (3698), 2483 states have internal predecessors, (3698), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:27,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 3702 transitions. [2022-03-20 02:53:27,830 INFO L78 Accepts]: Start accepts. Automaton has 2488 states and 3702 transitions. Word has length 171 [2022-03-20 02:53:27,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:27,830 INFO L478 AbstractCegarLoop]: Abstraction has 2488 states and 3702 transitions. [2022-03-20 02:53:27,830 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:27,831 INFO L276 IsEmpty]: Start isEmpty. Operand 2488 states and 3702 transitions. [2022-03-20 02:53:27,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-03-20 02:53:27,834 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:27,835 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:53:27,835 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-20 02:53:27,835 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:27,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:27,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1833855140, now seen corresponding path program 1 times [2022-03-20 02:53:27,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:27,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669756506] [2022-03-20 02:53:27,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:27,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:27,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:27,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:27,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:27,970 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 02:53:27,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:27,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669756506] [2022-03-20 02:53:27,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669756506] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:27,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:27,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:53:27,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956737461] [2022-03-20 02:53:27,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:27,971 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:53:27,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:27,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:53:27,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:53:27,972 INFO L87 Difference]: Start difference. First operand 2488 states and 3702 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:30,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:30,582 INFO L93 Difference]: Finished difference Result 5417 states and 8075 transitions. [2022-03-20 02:53:30,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:53:30,582 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 171 [2022-03-20 02:53:30,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:30,590 INFO L225 Difference]: With dead ends: 5417 [2022-03-20 02:53:30,591 INFO L226 Difference]: Without dead ends: 2957 [2022-03-20 02:53:30,594 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:53:30,595 INFO L913 BasicCegarLoop]: 377 mSDtfsCounter, 139 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:30,595 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 571 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 02:53:30,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2957 states. [2022-03-20 02:53:30,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2957 to 2957. [2022-03-20 02:53:30,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2957 states, 2952 states have (on average 1.4881436314363143) internal successors, (4393), 2952 states have internal predecessors, (4393), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:30,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2957 states to 2957 states and 4397 transitions. [2022-03-20 02:53:30,678 INFO L78 Accepts]: Start accepts. Automaton has 2957 states and 4397 transitions. Word has length 171 [2022-03-20 02:53:30,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:30,679 INFO L478 AbstractCegarLoop]: Abstraction has 2957 states and 4397 transitions. [2022-03-20 02:53:30,679 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:30,679 INFO L276 IsEmpty]: Start isEmpty. Operand 2957 states and 4397 transitions. [2022-03-20 02:53:30,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-03-20 02:53:30,684 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:30,685 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 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, 1, 1, 1] [2022-03-20 02:53:30,685 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-20 02:53:30,685 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:30,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:30,686 INFO L85 PathProgramCache]: Analyzing trace with hash 118844937, now seen corresponding path program 1 times [2022-03-20 02:53:30,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:30,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512757165] [2022-03-20 02:53:30,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:30,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:30,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:30,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:30,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:30,834 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-03-20 02:53:30,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:30,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512757165] [2022-03-20 02:53:30,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512757165] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:30,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:30,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:30,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784738252] [2022-03-20 02:53:30,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:30,837 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:30,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:30,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:30,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:30,838 INFO L87 Difference]: Start difference. First operand 2957 states and 4397 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:34,373 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 [] [2022-03-20 02:53:34,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:34,889 INFO L93 Difference]: Finished difference Result 6236 states and 9238 transitions. [2022-03-20 02:53:34,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:34,889 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 183 [2022-03-20 02:53:34,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:34,897 INFO L225 Difference]: With dead ends: 6236 [2022-03-20 02:53:34,897 INFO L226 Difference]: Without dead ends: 3307 [2022-03-20 02:53:34,901 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:53:34,902 INFO L913 BasicCegarLoop]: 139 mSDtfsCounter, 129 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:34,902 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 386 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-20 02:53:34,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3307 states. [2022-03-20 02:53:34,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3307 to 2957. [2022-03-20 02:53:34,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2957 states, 2952 states have (on average 1.4708672086720866) internal successors, (4342), 2952 states have internal predecessors, (4342), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:34,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2957 states to 2957 states and 4346 transitions. [2022-03-20 02:53:34,985 INFO L78 Accepts]: Start accepts. Automaton has 2957 states and 4346 transitions. Word has length 183 [2022-03-20 02:53:34,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:34,986 INFO L478 AbstractCegarLoop]: Abstraction has 2957 states and 4346 transitions. [2022-03-20 02:53:34,986 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:34,986 INFO L276 IsEmpty]: Start isEmpty. Operand 2957 states and 4346 transitions. [2022-03-20 02:53:34,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-03-20 02:53:34,991 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:34,991 INFO L499 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, 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] [2022-03-20 02:53:34,991 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-20 02:53:34,992 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:34,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:34,992 INFO L85 PathProgramCache]: Analyzing trace with hash 937244990, now seen corresponding path program 1 times [2022-03-20 02:53:34,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:34,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997149985] [2022-03-20 02:53:34,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:34,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:35,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:35,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:35,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:35,132 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 252 proven. 1 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-03-20 02:53:35,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:35,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997149985] [2022-03-20 02:53:35,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997149985] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 02:53:35,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371888407] [2022-03-20 02:53:35,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:35,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:53:35,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:53:35,139 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 02:53:35,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 02:53:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:35,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-20 02:53:36,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 02:53:36,330 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2022-03-20 02:53:36,330 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-20 02:53:36,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371888407] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:36,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-20 02:53:36,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-03-20 02:53:36,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276280521] [2022-03-20 02:53:36,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:36,331 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-20 02:53:36,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:36,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-20 02:53:36,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-20 02:53:36,332 INFO L87 Difference]: Start difference. First operand 2957 states and 4346 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:36,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:36,413 INFO L93 Difference]: Finished difference Result 6393 states and 9409 transitions. [2022-03-20 02:53:36,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-20 02:53:36,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 189 [2022-03-20 02:53:36,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:36,420 INFO L225 Difference]: With dead ends: 6393 [2022-03-20 02:53:36,421 INFO L226 Difference]: Without dead ends: 3464 [2022-03-20 02:53:36,426 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-20 02:53:36,426 INFO L913 BasicCegarLoop]: 385 mSDtfsCounter, 138 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:36,426 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 579 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 02:53:36,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3464 states. [2022-03-20 02:53:36,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3464 to 3462. [2022-03-20 02:53:36,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3462 states, 3457 states have (on average 1.4663002603413364) internal successors, (5069), 3457 states have internal predecessors, (5069), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:36,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3462 states to 3462 states and 5073 transitions. [2022-03-20 02:53:36,503 INFO L78 Accepts]: Start accepts. Automaton has 3462 states and 5073 transitions. Word has length 189 [2022-03-20 02:53:36,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:36,503 INFO L478 AbstractCegarLoop]: Abstraction has 3462 states and 5073 transitions. [2022-03-20 02:53:36,504 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:36,504 INFO L276 IsEmpty]: Start isEmpty. Operand 3462 states and 5073 transitions. [2022-03-20 02:53:36,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-03-20 02:53:36,509 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:36,509 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:53:36,542 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-20 02:53:36,723 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2022-03-20 02:53:36,724 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:36,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:36,724 INFO L85 PathProgramCache]: Analyzing trace with hash -2070762988, now seen corresponding path program 1 times [2022-03-20 02:53:36,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:36,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299526112] [2022-03-20 02:53:36,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:36,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:36,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:36,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:36,896 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 254 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-03-20 02:53:36,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:36,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299526112] [2022-03-20 02:53:36,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299526112] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:36,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:36,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:36,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653913813] [2022-03-20 02:53:36,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:36,898 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:36,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:36,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:36,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:36,898 INFO L87 Difference]: Start difference. First operand 3462 states and 5073 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) [2022-03-20 02:53:38,660 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:41,401 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:43,425 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:43,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:43,913 INFO L93 Difference]: Finished difference Result 7050 states and 10327 transitions. [2022-03-20 02:53:43,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:43,913 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 206 [2022-03-20 02:53:43,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:43,919 INFO L225 Difference]: With dead ends: 7050 [2022-03-20 02:53:43,919 INFO L226 Difference]: Without dead ends: 3616 [2022-03-20 02:53:43,924 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:53:43,925 INFO L913 BasicCegarLoop]: 230 mSDtfsCounter, 40 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:43,925 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 574 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-03-20 02:53:43,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3616 states. [2022-03-20 02:53:44,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3616 to 3462. [2022-03-20 02:53:44,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3462 states, 3457 states have (on average 1.4642753832803008) internal successors, (5062), 3457 states have internal predecessors, (5062), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:44,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3462 states to 3462 states and 5066 transitions. [2022-03-20 02:53:44,040 INFO L78 Accepts]: Start accepts. Automaton has 3462 states and 5066 transitions. Word has length 206 [2022-03-20 02:53:44,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:44,041 INFO L478 AbstractCegarLoop]: Abstraction has 3462 states and 5066 transitions. [2022-03-20 02:53:44,041 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) [2022-03-20 02:53:44,041 INFO L276 IsEmpty]: Start isEmpty. Operand 3462 states and 5066 transitions. [2022-03-20 02:53:44,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-03-20 02:53:44,048 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:44,048 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:53:44,048 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-20 02:53:44,048 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:44,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:44,049 INFO L85 PathProgramCache]: Analyzing trace with hash 113458123, now seen corresponding path program 1 times [2022-03-20 02:53:44,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:44,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076880779] [2022-03-20 02:53:44,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:44,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:44,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:44,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:44,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:44,200 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-03-20 02:53:44,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:44,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076880779] [2022-03-20 02:53:44,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076880779] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:44,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:44,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:44,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84318755] [2022-03-20 02:53:44,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:44,201 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:44,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:44,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:44,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:44,202 INFO L87 Difference]: Start difference. First operand 3462 states and 5066 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) [2022-03-20 02:53:46,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:46,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:46,719 INFO L93 Difference]: Finished difference Result 7050 states and 10313 transitions. [2022-03-20 02:53:46,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:46,719 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 228 [2022-03-20 02:53:46,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:46,727 INFO L225 Difference]: With dead ends: 7050 [2022-03-20 02:53:46,727 INFO L226 Difference]: Without dead ends: 3616 [2022-03-20 02:53:46,731 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:53:46,732 INFO L913 BasicCegarLoop]: 230 mSDtfsCounter, 45 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:46,732 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 573 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 461 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:53:46,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3616 states. [2022-03-20 02:53:46,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3616 to 3462. [2022-03-20 02:53:46,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3462 states, 3457 states have (on average 1.4622505062192652) internal successors, (5055), 3457 states have internal predecessors, (5055), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:46,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3462 states to 3462 states and 5059 transitions. [2022-03-20 02:53:46,806 INFO L78 Accepts]: Start accepts. Automaton has 3462 states and 5059 transitions. Word has length 228 [2022-03-20 02:53:46,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:46,806 INFO L478 AbstractCegarLoop]: Abstraction has 3462 states and 5059 transitions. [2022-03-20 02:53:46,806 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) [2022-03-20 02:53:46,807 INFO L276 IsEmpty]: Start isEmpty. Operand 3462 states and 5059 transitions. [2022-03-20 02:53:46,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-03-20 02:53:46,813 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:46,813 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:53:46,813 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-20 02:53:46,813 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:46,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:46,814 INFO L85 PathProgramCache]: Analyzing trace with hash 795005460, now seen corresponding path program 1 times [2022-03-20 02:53:46,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:46,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626374569] [2022-03-20 02:53:46,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:46,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:46,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:46,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:46,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:46,968 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 332 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-03-20 02:53:46,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:46,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626374569] [2022-03-20 02:53:46,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626374569] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:46,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:46,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:46,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824140250] [2022-03-20 02:53:46,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:46,969 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:46,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:46,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:46,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:46,969 INFO L87 Difference]: Start difference. First operand 3462 states and 5059 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) [2022-03-20 02:53:48,978 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:49,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:49,482 INFO L93 Difference]: Finished difference Result 7305 states and 10630 transitions. [2022-03-20 02:53:49,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:49,483 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 229 [2022-03-20 02:53:49,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:49,492 INFO L225 Difference]: With dead ends: 7305 [2022-03-20 02:53:49,493 INFO L226 Difference]: Without dead ends: 3871 [2022-03-20 02:53:49,499 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:53:49,500 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 118 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:49,500 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 382 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:53:49,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3871 states. [2022-03-20 02:53:49,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3871 to 3462. [2022-03-20 02:53:49,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3462 states, 3457 states have (on average 1.442869540063639) internal successors, (4988), 3457 states have internal predecessors, (4988), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:49,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3462 states to 3462 states and 4992 transitions. [2022-03-20 02:53:49,586 INFO L78 Accepts]: Start accepts. Automaton has 3462 states and 4992 transitions. Word has length 229 [2022-03-20 02:53:49,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:49,587 INFO L478 AbstractCegarLoop]: Abstraction has 3462 states and 4992 transitions. [2022-03-20 02:53:49,587 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) [2022-03-20 02:53:49,587 INFO L276 IsEmpty]: Start isEmpty. Operand 3462 states and 4992 transitions. [2022-03-20 02:53:49,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-20 02:53:49,594 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:49,594 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:53:49,594 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-20 02:53:49,594 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:49,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:49,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1390227232, now seen corresponding path program 1 times [2022-03-20 02:53:49,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:49,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990674829] [2022-03-20 02:53:49,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:49,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:49,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:49,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:49,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:49,787 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-03-20 02:53:49,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:49,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990674829] [2022-03-20 02:53:49,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990674829] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:49,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:49,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:49,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3385399] [2022-03-20 02:53:49,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:49,789 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:49,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:49,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:49,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:49,789 INFO L87 Difference]: Start difference. First operand 3462 states and 4992 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 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) [2022-03-20 02:53:53,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:53,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:53,875 INFO L93 Difference]: Finished difference Result 7218 states and 10389 transitions. [2022-03-20 02:53:53,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:53,876 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 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 231 [2022-03-20 02:53:53,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:53,884 INFO L225 Difference]: With dead ends: 7218 [2022-03-20 02:53:53,884 INFO L226 Difference]: Without dead ends: 3784 [2022-03-20 02:53:53,891 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:53:53,892 INFO L913 BasicCegarLoop]: 240 mSDtfsCounter, 31 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:53,892 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 593 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-20 02:53:53,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3784 states. [2022-03-20 02:53:53,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3784 to 3672. [2022-03-20 02:53:53,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3672 states, 3667 states have (on average 1.4404145077720207) internal successors, (5282), 3667 states have internal predecessors, (5282), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:53,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3672 states to 3672 states and 5286 transitions. [2022-03-20 02:53:53,990 INFO L78 Accepts]: Start accepts. Automaton has 3672 states and 5286 transitions. Word has length 231 [2022-03-20 02:53:53,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:53,990 INFO L478 AbstractCegarLoop]: Abstraction has 3672 states and 5286 transitions. [2022-03-20 02:53:53,990 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 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) [2022-03-20 02:53:53,991 INFO L276 IsEmpty]: Start isEmpty. Operand 3672 states and 5286 transitions. [2022-03-20 02:53:53,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-03-20 02:53:53,997 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:53,997 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:53:53,998 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-20 02:53:53,998 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:53,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:53,998 INFO L85 PathProgramCache]: Analyzing trace with hash -338469347, now seen corresponding path program 1 times [2022-03-20 02:53:53,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:53,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893638516] [2022-03-20 02:53:53,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:53,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:54,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:54,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:54,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:54,181 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-03-20 02:53:54,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:54,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893638516] [2022-03-20 02:53:54,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893638516] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:53:54,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:53:54,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:53:54,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541575381] [2022-03-20 02:53:54,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:53:54,182 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:53:54,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:53:54,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:53:54,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:53:54,182 INFO L87 Difference]: Start difference. First operand 3672 states and 5286 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) [2022-03-20 02:53:55,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:57,608 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:53:58,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:53:58,687 INFO L93 Difference]: Finished difference Result 7439 states and 10683 transitions. [2022-03-20 02:53:58,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:53:58,688 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 237 [2022-03-20 02:53:58,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:53:58,692 INFO L225 Difference]: With dead ends: 7439 [2022-03-20 02:53:58,692 INFO L226 Difference]: Without dead ends: 3795 [2022-03-20 02:53:58,697 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:53:58,697 INFO L913 BasicCegarLoop]: 250 mSDtfsCounter, 60 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:53:58,697 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 612 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-03-20 02:53:58,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3795 states. [2022-03-20 02:53:58,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3795 to 3672. [2022-03-20 02:53:58,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3672 states, 3667 states have (on average 1.4390509953640578) internal successors, (5277), 3667 states have internal predecessors, (5277), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:53:58,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3672 states to 3672 states and 5281 transitions. [2022-03-20 02:53:58,777 INFO L78 Accepts]: Start accepts. Automaton has 3672 states and 5281 transitions. Word has length 237 [2022-03-20 02:53:58,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:53:58,777 INFO L478 AbstractCegarLoop]: Abstraction has 3672 states and 5281 transitions. [2022-03-20 02:53:58,778 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) [2022-03-20 02:53:58,778 INFO L276 IsEmpty]: Start isEmpty. Operand 3672 states and 5281 transitions. [2022-03-20 02:53:58,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-03-20 02:53:58,803 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:53:58,803 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:53:58,803 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-20 02:53:58,803 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:53:58,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:53:58,804 INFO L85 PathProgramCache]: Analyzing trace with hash 379316511, now seen corresponding path program 1 times [2022-03-20 02:53:58,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:53:58,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705796335] [2022-03-20 02:53:58,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:58,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:53:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:59,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:53:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:53:59,318 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 370 proven. 72 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-03-20 02:53:59,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:53:59,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705796335] [2022-03-20 02:53:59,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705796335] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 02:53:59,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207590208] [2022-03-20 02:53:59,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:53:59,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:53:59,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:53:59,320 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 02:53:59,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-20 02:54:00,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:00,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 1436 conjuncts, 48 conjunts are in the unsatisfiable core [2022-03-20 02:54:00,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 02:54:00,335 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 02:54:00,336 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 02:54:00,394 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 02:54:00,395 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 02:54:00,491 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-20 02:54:00,576 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-20 02:54:00,581 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-20 02:54:00,608 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-20 02:54:00,612 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-20 02:54:00,632 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-20 02:54:00,632 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 [2022-03-20 02:54:00,745 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-03-20 02:54:00,745 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 [2022-03-20 02:54:01,049 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 11 [2022-03-20 02:54:01,193 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 363 proven. 68 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-03-20 02:54:01,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 02:54:01,352 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-03-20 02:54:01,360 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-03-20 02:54:02,150 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_14062 Int) (v_arrayElimCell_10 Int) (v_arrayElimCell_11 Int)) (not (= (select (select (store |c_#memory_int| v_arrayElimCell_10 (store (select |c_#memory_int| v_arrayElimCell_10) (+ 844 v_arrayElimCell_11) v_ArrVal_14062)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)) 8640))) is different from false [2022-03-20 02:54:02,321 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 [2022-03-20 02:54:02,482 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 342 proven. 69 refuted. 0 times theorem prover too weak. 103 trivial. 1 not checked. [2022-03-20 02:54:02,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207590208] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 02:54:02,483 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 02:54:02,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 8] total 23 [2022-03-20 02:54:02,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007319062] [2022-03-20 02:54:02,483 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 02:54:02,484 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-20 02:54:02,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:54:02,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-20 02:54:02,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=398, Unknown=1, NotChecked=40, Total=506 [2022-03-20 02:54:02,484 INFO L87 Difference]: Start difference. First operand 3672 states and 5281 transitions. Second operand has 23 states, 23 states have (on average 13.26086956521739) internal successors, (305), 22 states have internal predecessors, (305), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:05,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:54:08,099 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:54:10,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:54:13,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:54:14,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:54:17,326 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:54:20,196 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:54:22,219 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:54:28,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:54:28,846 INFO L93 Difference]: Finished difference Result 16273 states and 23036 transitions. [2022-03-20 02:54:28,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-03-20 02:54:28,847 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 13.26086956521739) internal successors, (305), 22 states have internal predecessors, (305), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 256 [2022-03-20 02:54:28,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:54:28,861 INFO L225 Difference]: With dead ends: 16273 [2022-03-20 02:54:28,861 INFO L226 Difference]: Without dead ends: 12629 [2022-03-20 02:54:28,867 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 630 GetRequests, 522 SyntacticMatches, 7 SemanticMatches, 101 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3623 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1395, Invalid=8910, Unknown=1, NotChecked=200, Total=10506 [2022-03-20 02:54:28,868 INFO L913 BasicCegarLoop]: 294 mSDtfsCounter, 3802 mSDsluCounter, 3321 mSDsCounter, 0 mSdLazyCounter, 3980 mSolverCounterSat, 1023 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3802 SdHoareTripleChecker+Valid, 3615 SdHoareTripleChecker+Invalid, 6173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1023 IncrementalHoareTripleChecker+Valid, 3980 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 1165 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2022-03-20 02:54:28,868 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3802 Valid, 3615 Invalid, 6173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1023 Valid, 3980 Invalid, 5 Unknown, 1165 Unchecked, 24.1s Time] [2022-03-20 02:54:28,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12629 states. [2022-03-20 02:54:29,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12629 to 4176. [2022-03-20 02:54:29,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4176 states, 4171 states have (on average 1.4337089426995924) internal successors, (5980), 4171 states have internal predecessors, (5980), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:29,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4176 states to 4176 states and 5984 transitions. [2022-03-20 02:54:29,076 INFO L78 Accepts]: Start accepts. Automaton has 4176 states and 5984 transitions. Word has length 256 [2022-03-20 02:54:29,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:54:29,076 INFO L478 AbstractCegarLoop]: Abstraction has 4176 states and 5984 transitions. [2022-03-20 02:54:29,077 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 13.26086956521739) internal successors, (305), 22 states have internal predecessors, (305), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:29,077 INFO L276 IsEmpty]: Start isEmpty. Operand 4176 states and 5984 transitions. [2022-03-20 02:54:29,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-03-20 02:54:29,084 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:54:29,084 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:54:29,113 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-20 02:54:29,299 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,SelfDestructingSolverStorable49 [2022-03-20 02:54:29,299 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:54:29,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:54:29,300 INFO L85 PathProgramCache]: Analyzing trace with hash 462063695, now seen corresponding path program 1 times [2022-03-20 02:54:29,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:54:29,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824993689] [2022-03-20 02:54:29,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:54:29,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:54:29,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:29,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:54:29,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:29,731 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 372 proven. 72 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-03-20 02:54:29,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:54:29,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824993689] [2022-03-20 02:54:29,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824993689] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 02:54:29,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108161758] [2022-03-20 02:54:29,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:54:29,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:54:29,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:54:29,736 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 02:54:29,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-20 02:54:30,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:30,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 1439 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-20 02:54:30,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 02:54:30,825 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 02:54:30,825 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 02:54:30,866 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 02:54:30,866 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 02:54:30,980 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 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-20 02:54:31,006 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-20 02:54:31,009 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 13 [2022-03-20 02:54:31,023 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-20 02:54:31,023 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 [2022-03-20 02:54:31,101 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-03-20 02:54:31,101 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 [2022-03-20 02:54:31,283 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 02:54:31,383 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 375 proven. 48 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-03-20 02:54:31,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 02:54:31,606 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-03-20 02:54:31,609 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-03-20 02:54:33,229 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_21 Int) (v_arrayElimCell_22 Int)) (not (= 8657 (select (select (store |c_#memory_int| v_arrayElimCell_21 (store (select |c_#memory_int| v_arrayElimCell_21) (+ 844 v_arrayElimCell_22) 3)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset))))) is different from false [2022-03-20 02:54:33,385 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 380 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-03-20 02:54:33,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108161758] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 02:54:33,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 02:54:33,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11, 9] total 19 [2022-03-20 02:54:33,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129566296] [2022-03-20 02:54:33,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:54:33,386 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 02:54:33,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:54:33,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 02:54:33,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=252, Unknown=1, NotChecked=32, Total=342 [2022-03-20 02:54:33,387 INFO L87 Difference]: Start difference. First operand 4176 states and 5984 transitions. Second operand has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:35,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:54:37,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:54:39,669 WARN L833 $PredicateComparison]: unable to prove that (and (not (= 8657 (select (select |c_#memory_int| c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)))) (forall ((v_arrayElimCell_21 Int) (v_arrayElimCell_22 Int)) (not (= 8657 (select (select (store |c_#memory_int| v_arrayElimCell_21 (store (select |c_#memory_int| v_arrayElimCell_21) (+ 844 v_arrayElimCell_22) 3)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)))))) is different from false [2022-03-20 02:54:39,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:54:39,840 INFO L93 Difference]: Finished difference Result 8793 states and 12570 transitions. [2022-03-20 02:54:39,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:54:39,841 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 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 [2022-03-20 02:54:39,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:54:39,846 INFO L225 Difference]: With dead ends: 8793 [2022-03-20 02:54:39,846 INFO L226 Difference]: Without dead ends: 4603 [2022-03-20 02:54:39,850 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 530 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=64, Invalid=284, Unknown=2, NotChecked=70, Total=420 [2022-03-20 02:54:39,850 INFO L913 BasicCegarLoop]: 142 mSDtfsCounter, 133 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 255 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:54:39,850 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 603 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 309 Invalid, 1 Unknown, 255 Unchecked, 4.3s Time] [2022-03-20 02:54:39,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4603 states. [2022-03-20 02:54:39,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4603 to 4194. [2022-03-20 02:54:39,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4194 states, 4189 states have (on average 1.4311291477679637) internal successors, (5995), 4189 states have internal predecessors, (5995), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:39,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4194 states to 4194 states and 5999 transitions. [2022-03-20 02:54:39,990 INFO L78 Accepts]: Start accepts. Automaton has 4194 states and 5999 transitions. Word has length 257 [2022-03-20 02:54:39,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:54:39,991 INFO L478 AbstractCegarLoop]: Abstraction has 4194 states and 5999 transitions. [2022-03-20 02:54:39,991 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:39,991 INFO L276 IsEmpty]: Start isEmpty. Operand 4194 states and 5999 transitions. [2022-03-20 02:54:39,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-03-20 02:54:39,998 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:54:39,998 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-03-20 02:54:40,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-20 02:54:40,211 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:54:40,211 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:54:40,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:54:40,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1168660301, now seen corresponding path program 1 times [2022-03-20 02:54:40,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:54:40,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877020446] [2022-03-20 02:54:40,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:54:40,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:54:40,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:40,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:54:40,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:40,504 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 377 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2022-03-20 02:54:40,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:54:40,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877020446] [2022-03-20 02:54:40,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877020446] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:54:40,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:54:40,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-20 02:54:40,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626923602] [2022-03-20 02:54:40,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:54:40,506 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-20 02:54:40,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:54:40,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-20 02:54:40,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-20 02:54:40,506 INFO L87 Difference]: Start difference. First operand 4194 states and 5999 transitions. Second operand has 8 states, 8 states have (on average 19.625) internal successors, (157), 7 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) [2022-03-20 02:54:43,315 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:54:45,761 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:54:48,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:54:49,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:54:49,374 INFO L93 Difference]: Finished difference Result 9614 states and 13648 transitions. [2022-03-20 02:54:49,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-20 02:54:49,375 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.625) internal successors, (157), 7 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 257 [2022-03-20 02:54:49,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:54:49,382 INFO L225 Difference]: With dead ends: 9614 [2022-03-20 02:54:49,382 INFO L226 Difference]: Without dead ends: 5448 [2022-03-20 02:54:49,387 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-03-20 02:54:49,388 INFO L913 BasicCegarLoop]: 296 mSDtfsCounter, 389 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 1155 mSolverCounterSat, 46 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1155 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:54:49,388 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [389 Valid, 1057 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1155 Invalid, 3 Unknown, 0 Unchecked, 8.6s Time] [2022-03-20 02:54:49,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5448 states. [2022-03-20 02:54:49,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5448 to 4134. [2022-03-20 02:54:49,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4134 states, 4129 states have (on average 1.4301283603778154) internal successors, (5905), 4129 states have internal predecessors, (5905), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:49,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4134 states to 4134 states and 5909 transitions. [2022-03-20 02:54:49,508 INFO L78 Accepts]: Start accepts. Automaton has 4134 states and 5909 transitions. Word has length 257 [2022-03-20 02:54:49,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:54:49,509 INFO L478 AbstractCegarLoop]: Abstraction has 4134 states and 5909 transitions. [2022-03-20 02:54:49,509 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.625) internal successors, (157), 7 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) [2022-03-20 02:54:49,509 INFO L276 IsEmpty]: Start isEmpty. Operand 4134 states and 5909 transitions. [2022-03-20 02:54:49,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-03-20 02:54:49,514 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:54:49,514 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:54:49,515 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-20 02:54:49,515 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:54:49,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:54:49,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1444547086, now seen corresponding path program 1 times [2022-03-20 02:54:49,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:54:49,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136985456] [2022-03-20 02:54:49,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:54:49,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:54:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:49,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:54:49,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:49,674 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 471 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-03-20 02:54:49,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:54:49,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136985456] [2022-03-20 02:54:49,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136985456] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:54:49,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:54:49,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:54:49,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329693745] [2022-03-20 02:54:49,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:54:49,675 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:54:49,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:54:49,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:54:49,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:54:49,709 INFO L87 Difference]: Start difference. First operand 4134 states and 5909 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 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) [2022-03-20 02:54:51,720 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:54:52,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:54:52,324 INFO L93 Difference]: Finished difference Result 8901 states and 12701 transitions. [2022-03-20 02:54:52,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:54:52,324 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 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 266 [2022-03-20 02:54:52,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:54:52,329 INFO L225 Difference]: With dead ends: 8901 [2022-03-20 02:54:52,329 INFO L226 Difference]: Without dead ends: 4795 [2022-03-20 02:54:52,333 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:54:52,334 INFO L913 BasicCegarLoop]: 153 mSDtfsCounter, 112 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:54:52,334 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 419 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 475 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:54:52,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4795 states. [2022-03-20 02:54:52,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4795 to 4267. [2022-03-20 02:54:52,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4267 states, 4262 states have (on average 1.4040356640075082) internal successors, (5984), 4262 states have internal predecessors, (5984), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:52,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4267 states to 4267 states and 5988 transitions. [2022-03-20 02:54:52,457 INFO L78 Accepts]: Start accepts. Automaton has 4267 states and 5988 transitions. Word has length 266 [2022-03-20 02:54:52,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:54:52,458 INFO L478 AbstractCegarLoop]: Abstraction has 4267 states and 5988 transitions. [2022-03-20 02:54:52,458 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 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) [2022-03-20 02:54:52,458 INFO L276 IsEmpty]: Start isEmpty. Operand 4267 states and 5988 transitions. [2022-03-20 02:54:52,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-03-20 02:54:52,463 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:54:52,464 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 8, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:54:52,464 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-20 02:54:52,464 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:54:52,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:54:52,464 INFO L85 PathProgramCache]: Analyzing trace with hash 328792406, now seen corresponding path program 1 times [2022-03-20 02:54:52,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:54:52,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701861954] [2022-03-20 02:54:52,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:54:52,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:54:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:52,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:54:52,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:52,615 INFO L134 CoverageAnalysis]: Checked inductivity of 755 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-03-20 02:54:52,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:54:52,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701861954] [2022-03-20 02:54:52,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701861954] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:54:52,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:54:52,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:54:52,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131277315] [2022-03-20 02:54:52,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:54:52,616 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:54:52,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:54:52,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:54:52,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:54:52,616 INFO L87 Difference]: Start difference. First operand 4267 states and 5988 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) [2022-03-20 02:54:54,628 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:54:55,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:54:55,199 INFO L93 Difference]: Finished difference Result 8632 states and 12121 transitions. [2022-03-20 02:54:55,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:54:55,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 267 [2022-03-20 02:54:55,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:54:55,204 INFO L225 Difference]: With dead ends: 8632 [2022-03-20 02:54:55,205 INFO L226 Difference]: Without dead ends: 4393 [2022-03-20 02:54:55,208 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:54:55,208 INFO L913 BasicCegarLoop]: 224 mSDtfsCounter, 40 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:54:55,208 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 561 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 444 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:54:55,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4393 states. [2022-03-20 02:54:55,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4393 to 4267. [2022-03-20 02:54:55,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4267 states, 4262 states have (on average 1.4023932426091037) internal successors, (5977), 4262 states have internal predecessors, (5977), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:55,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4267 states to 4267 states and 5981 transitions. [2022-03-20 02:54:55,338 INFO L78 Accepts]: Start accepts. Automaton has 4267 states and 5981 transitions. Word has length 267 [2022-03-20 02:54:55,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:54:55,339 INFO L478 AbstractCegarLoop]: Abstraction has 4267 states and 5981 transitions. [2022-03-20 02:54:55,339 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) [2022-03-20 02:54:55,339 INFO L276 IsEmpty]: Start isEmpty. Operand 4267 states and 5981 transitions. [2022-03-20 02:54:55,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-03-20 02:54:55,348 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:54:55,348 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:54:55,348 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-20 02:54:55,348 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:54:55,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:54:55,349 INFO L85 PathProgramCache]: Analyzing trace with hash -692693107, now seen corresponding path program 1 times [2022-03-20 02:54:55,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:54:55,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433863390] [2022-03-20 02:54:55,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:54:55,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:54:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:55,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:54:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:55,511 INFO L134 CoverageAnalysis]: Checked inductivity of 763 backedges. 487 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-03-20 02:54:55,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:54:55,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433863390] [2022-03-20 02:54:55,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433863390] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:54:55,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:54:55,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:54:55,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559185627] [2022-03-20 02:54:55,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:54:55,512 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:54:55,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:54:55,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:54:55,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:54:55,513 INFO L87 Difference]: Start difference. First operand 4267 states and 5981 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) [2022-03-20 02:54:57,522 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:54:58,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:54:58,245 INFO L93 Difference]: Finished difference Result 9167 states and 12838 transitions. [2022-03-20 02:54:58,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:54:58,245 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 268 [2022-03-20 02:54:58,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:54:58,252 INFO L225 Difference]: With dead ends: 9167 [2022-03-20 02:54:58,252 INFO L226 Difference]: Without dead ends: 4928 [2022-03-20 02:54:58,275 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:54:58,275 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 118 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:54:58,276 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 382 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:54:58,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4928 states. [2022-03-20 02:54:58,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4928 to 4414. [2022-03-20 02:54:58,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4414 states, 4409 states have (on average 1.3783170787026537) internal successors, (6077), 4409 states have internal predecessors, (6077), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:54:58,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4414 states to 4414 states and 6081 transitions. [2022-03-20 02:54:58,452 INFO L78 Accepts]: Start accepts. Automaton has 4414 states and 6081 transitions. Word has length 268 [2022-03-20 02:54:58,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:54:58,452 INFO L478 AbstractCegarLoop]: Abstraction has 4414 states and 6081 transitions. [2022-03-20 02:54:58,452 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) [2022-03-20 02:54:58,452 INFO L276 IsEmpty]: Start isEmpty. Operand 4414 states and 6081 transitions. [2022-03-20 02:54:58,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2022-03-20 02:54:58,457 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:54:58,457 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:54:58,457 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-20 02:54:58,458 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:54:58,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:54:58,458 INFO L85 PathProgramCache]: Analyzing trace with hash -790632810, now seen corresponding path program 1 times [2022-03-20 02:54:58,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:54:58,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671180631] [2022-03-20 02:54:58,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:54:58,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:54:58,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:58,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:54:58,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:58,653 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 516 proven. 38 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2022-03-20 02:54:58,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:54:58,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671180631] [2022-03-20 02:54:58,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671180631] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 02:54:58,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039146543] [2022-03-20 02:54:58,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:54:58,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:54:58,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:54:58,656 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 02:54:58,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-20 02:54:59,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:54:59,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 1563 conjuncts, 23 conjunts are in the unsatisfiable core [2022-03-20 02:54:59,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 02:54:59,764 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 02:54:59,765 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 02:54:59,820 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 02:54:59,821 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 02:54:59,907 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 02:54:59,907 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 02:54:59,951 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 02:55:00,129 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 502 proven. 48 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2022-03-20 02:55:00,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 02:55:00,185 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 10 treesize of output 4 [2022-03-20 02:55:00,501 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 506 proven. 10 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-03-20 02:55:00,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039146543] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 02:55:00,502 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 02:55:00,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 7] total 13 [2022-03-20 02:55:00,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407445590] [2022-03-20 02:55:00,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 02:55:00,503 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-20 02:55:00,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:55:00,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-20 02:55:00,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-03-20 02:55:00,503 INFO L87 Difference]: Start difference. First operand 4414 states and 6081 transitions. Second operand has 13 states, 13 states have (on average 16.076923076923077) internal successors, (209), 12 states have internal predecessors, (209), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:55:01,791 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:55:03,749 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:55:05,770 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:55:06,976 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:55:08,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:55:11,004 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:55:13,373 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:55:15,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:55:15,072 INFO L93 Difference]: Finished difference Result 10902 states and 15086 transitions. [2022-03-20 02:55:15,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-20 02:55:15,072 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 16.076923076923077) internal successors, (209), 12 states have internal predecessors, (209), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 271 [2022-03-20 02:55:15,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:55:15,080 INFO L225 Difference]: With dead ends: 10902 [2022-03-20 02:55:15,080 INFO L226 Difference]: Without dead ends: 6516 [2022-03-20 02:55:15,085 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 573 GetRequests, 547 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=166, Invalid=590, Unknown=0, NotChecked=0, Total=756 [2022-03-20 02:55:15,086 INFO L913 BasicCegarLoop]: 212 mSDtfsCounter, 974 mSDsluCounter, 1309 mSDsCounter, 0 mSdLazyCounter, 1633 mSolverCounterSat, 297 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 1932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 297 IncrementalHoareTripleChecker+Valid, 1633 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:55:15,086 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [974 Valid, 1521 Invalid, 1932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [297 Valid, 1633 Invalid, 2 Unknown, 0 Unchecked, 14.2s Time] [2022-03-20 02:55:15,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6516 states. [2022-03-20 02:55:15,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6516 to 4414. [2022-03-20 02:55:15,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4414 states, 4409 states have (on average 1.3631208890904967) internal successors, (6010), 4409 states have internal predecessors, (6010), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:55:15,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4414 states to 4414 states and 6014 transitions. [2022-03-20 02:55:15,270 INFO L78 Accepts]: Start accepts. Automaton has 4414 states and 6014 transitions. Word has length 271 [2022-03-20 02:55:15,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:55:15,270 INFO L478 AbstractCegarLoop]: Abstraction has 4414 states and 6014 transitions. [2022-03-20 02:55:15,270 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 16.076923076923077) internal successors, (209), 12 states have internal predecessors, (209), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:55:15,270 INFO L276 IsEmpty]: Start isEmpty. Operand 4414 states and 6014 transitions. [2022-03-20 02:55:15,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-03-20 02:55:15,276 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:55:15,276 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 7, 7, 6, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:55:15,308 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-20 02:55:15,503 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:55:15,503 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:55:15,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:55:15,504 INFO L85 PathProgramCache]: Analyzing trace with hash 292965722, now seen corresponding path program 1 times [2022-03-20 02:55:15,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:55:15,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190954743] [2022-03-20 02:55:15,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:55:15,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:55:15,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:55:15,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:55:15,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:55:15,681 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 513 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2022-03-20 02:55:15,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:55:15,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190954743] [2022-03-20 02:55:15,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190954743] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:55:15,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:55:15,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:55:15,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906740686] [2022-03-20 02:55:15,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:55:15,683 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:55:15,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:55:15,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:55:15,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:55:15,684 INFO L87 Difference]: Start difference. First operand 4414 states and 6014 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) [2022-03-20 02:55:18,441 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:55:20,471 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:55:21,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:55:21,500 INFO L93 Difference]: Finished difference Result 8870 states and 12108 transitions. [2022-03-20 02:55:21,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:55:21,500 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 273 [2022-03-20 02:55:21,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:55:21,505 INFO L225 Difference]: With dead ends: 8870 [2022-03-20 02:55:21,505 INFO L226 Difference]: Without dead ends: 4484 [2022-03-20 02:55:21,509 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:55:21,509 INFO L913 BasicCegarLoop]: 214 mSDtfsCounter, 24 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:55:21,510 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 541 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 422 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-03-20 02:55:21,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4484 states. [2022-03-20 02:55:21,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4484 to 4414. [2022-03-20 02:55:21,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4414 states, 4409 states have (on average 1.3615332274892267) internal successors, (6003), 4409 states have internal predecessors, (6003), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:55:21,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4414 states to 4414 states and 6007 transitions. [2022-03-20 02:55:21,662 INFO L78 Accepts]: Start accepts. Automaton has 4414 states and 6007 transitions. Word has length 273 [2022-03-20 02:55:21,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:55:21,662 INFO L478 AbstractCegarLoop]: Abstraction has 4414 states and 6007 transitions. [2022-03-20 02:55:21,662 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) [2022-03-20 02:55:21,662 INFO L276 IsEmpty]: Start isEmpty. Operand 4414 states and 6007 transitions. [2022-03-20 02:55:21,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-03-20 02:55:21,667 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:55:21,667 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:55:21,667 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-20 02:55:21,667 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:55:21,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:55:21,668 INFO L85 PathProgramCache]: Analyzing trace with hash 352284730, now seen corresponding path program 1 times [2022-03-20 02:55:21,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:55:21,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666714905] [2022-03-20 02:55:21,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:55:21,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:55:21,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:55:21,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:55:21,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:55:21,837 INFO L134 CoverageAnalysis]: Checked inductivity of 799 backedges. 520 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-03-20 02:55:21,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:55:21,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666714905] [2022-03-20 02:55:21,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666714905] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:55:21,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:55:21,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:55:21,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134116775] [2022-03-20 02:55:21,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:55:21,838 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:55:21,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:55:21,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:55:21,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:55:21,839 INFO L87 Difference]: Start difference. First operand 4414 states and 6007 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) [2022-03-20 02:55:22,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:55:24,858 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:55:26,882 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:55:27,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:55:27,967 INFO L93 Difference]: Finished difference Result 9153 states and 12461 transitions. [2022-03-20 02:55:27,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:55:27,968 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 275 [2022-03-20 02:55:27,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:55:27,973 INFO L225 Difference]: With dead ends: 9153 [2022-03-20 02:55:27,973 INFO L226 Difference]: Without dead ends: 4767 [2022-03-20 02:55:27,977 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:55:27,977 INFO L913 BasicCegarLoop]: 158 mSDtfsCounter, 113 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 49 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-20 02:55:27,977 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 423 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 478 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-03-20 02:55:27,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4767 states. [2022-03-20 02:55:28,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4767 to 4232. [2022-03-20 02:55:28,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4232 states, 4227 states have (on average 1.347764371894961) internal successors, (5697), 4227 states have internal predecessors, (5697), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:55:28,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4232 states to 4232 states and 5701 transitions. [2022-03-20 02:55:28,137 INFO L78 Accepts]: Start accepts. Automaton has 4232 states and 5701 transitions. Word has length 275 [2022-03-20 02:55:28,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:55:28,137 INFO L478 AbstractCegarLoop]: Abstraction has 4232 states and 5701 transitions. [2022-03-20 02:55:28,137 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) [2022-03-20 02:55:28,137 INFO L276 IsEmpty]: Start isEmpty. Operand 4232 states and 5701 transitions. [2022-03-20 02:55:28,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-03-20 02:55:28,142 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:55:28,142 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:55:28,142 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-20 02:55:28,142 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:55:28,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:55:28,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1170395498, now seen corresponding path program 1 times [2022-03-20 02:55:28,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:55:28,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616754805] [2022-03-20 02:55:28,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:55:28,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:55:28,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:55:29,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:55:29,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:55:29,533 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 196 proven. 445 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-03-20 02:55:29,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:55:29,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616754805] [2022-03-20 02:55:29,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616754805] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 02:55:29,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464211780] [2022-03-20 02:55:29,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:55:29,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:55:29,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:55:29,535 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 02:55:29,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-20 02:55:30,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:55:30,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 1528 conjuncts, 101 conjunts are in the unsatisfiable core [2022-03-20 02:55:30,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 02:55:30,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:30,717 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 02:55:30,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:30,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:30,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:30,910 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 02:55:30,910 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-20 02:55:31,072 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-20 02:55:31,082 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-20 02:55:31,138 INFO L356 Elim1Store]: treesize reduction 31, result has 44.6 percent of original size [2022-03-20 02:55:31,139 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 82 [2022-03-20 02:55:31,156 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-03-20 02:55:31,156 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 64 [2022-03-20 02:55:31,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:31,187 INFO L356 Elim1Store]: treesize reduction 48, result has 44.8 percent of original size [2022-03-20 02:55:31,188 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 54 [2022-03-20 02:55:31,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:31,304 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 114 [2022-03-20 02:55:31,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:31,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:31,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:31,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:31,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:31,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:31,332 INFO L356 Elim1Store]: treesize reduction 133, result has 24.4 percent of original size [2022-03-20 02:55:31,332 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 127 treesize of output 145 [2022-03-20 02:55:31,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:31,338 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 133 [2022-03-20 02:55:32,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:32,696 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 121 [2022-03-20 02:55:32,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:32,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:32,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:32,732 INFO L356 Elim1Store]: treesize reduction 128, result has 27.3 percent of original size [2022-03-20 02:55:32,732 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 136 treesize of output 137 [2022-03-20 02:55:32,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:32,741 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 137 [2022-03-20 02:55:34,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:34,675 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-20 02:55:34,676 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 194 treesize of output 189 [2022-03-20 02:55:34,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:34,719 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-20 02:55:34,719 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 171 treesize of output 166 [2022-03-20 02:55:34,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:34,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:34,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:55:34,817 INFO L356 Elim1Store]: treesize reduction 122, result has 44.8 percent of original size [2022-03-20 02:55:34,818 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 76 treesize of output 134 [2022-03-20 02:56:10,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:56:10,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:56:10,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:56:10,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:56:10,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:56:10,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:56:10,531 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 315 treesize of output 279 [2022-03-20 02:56:10,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:56:10,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:56:10,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:56:10,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:56:10,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:56:10,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:56:10,583 INFO L356 Elim1Store]: treesize reduction 117, result has 14.0 percent of original size [2022-03-20 02:56:10,584 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 315 treesize of output 298 [2022-03-20 02:56:10,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:56:10,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:56:10,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:56:10,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:56:10,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:56:10,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:56:10,595 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 297 treesize of output 261 [2022-03-20 02:59:22,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:59:22,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:59:22,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:59:22,155 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 334 treesize of output 282 [2022-03-20 02:59:22,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:59:22,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:59:22,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:59:22,165 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 334 treesize of output 282 [2022-03-20 02:59:22,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:59:22,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:59:22,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:59:22,192 INFO L356 Elim1Store]: treesize reduction 67, result has 11.8 percent of original size [2022-03-20 02:59:22,192 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 334 treesize of output 315 [2022-03-20 02:59:26,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:59:26,729 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 117 [2022-03-20 02:59:26,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:59:26,738 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 81 [2022-03-20 02:59:26,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:59:26,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:59:26,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:59:26,772 INFO L356 Elim1Store]: treesize reduction 193, result has 12.7 percent of original size [2022-03-20 02:59:26,773 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 100 treesize of output 99 [2022-03-20 02:59:26,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:59:26,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:59:26,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:59:26,856 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-20 02:59:26,857 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2022-03-20 02:59:27,052 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 346 proven. 274 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-03-20 02:59:27,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 02:59:30,233 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 02:59:30,235 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 342266 treesize of output 283040 [2022-03-20 02:59:32,800 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-03-20 02:59:32,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-20 02:59:33,004 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2022-03-20 02:59:33,005 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArithmeticException: BigInteger out of long range at java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.computeDerApplicabilityScore(QuantifierPusher.java:685) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.selectBestEliminatee(QuantifierPusher.java:668) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.doit(QuantifierPusher.java:604) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:446) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:261) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:247) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:92) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:595) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:264) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-03-20 02:59:33,008 INFO L158 Benchmark]: Toolchain (without parser) took 526323.93ms. Allocated memory was 180.4MB in the beginning and 451.9MB in the end (delta: 271.6MB). Free memory was 126.9MB in the beginning and 222.9MB in the end (delta: -96.0MB). Peak memory consumption was 327.8MB. Max. memory is 8.0GB. [2022-03-20 02:59:33,008 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 180.4MB. Free memory was 146.0MB in the beginning and 145.8MB in the end (delta: 151.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-20 02:59:33,008 INFO L158 Benchmark]: CACSL2BoogieTranslator took 557.16ms. Allocated memory is still 180.4MB. Free memory was 126.6MB in the beginning and 136.9MB in the end (delta: -10.3MB). Peak memory consumption was 15.8MB. Max. memory is 8.0GB. [2022-03-20 02:59:33,008 INFO L158 Benchmark]: Boogie Preprocessor took 144.46ms. Allocated memory is still 180.4MB. Free memory was 136.9MB in the beginning and 129.0MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-20 02:59:33,009 INFO L158 Benchmark]: RCFGBuilder took 1517.16ms. Allocated memory was 180.4MB in the beginning and 217.1MB in the end (delta: 36.7MB). Free memory was 129.0MB in the beginning and 162.6MB in the end (delta: -33.6MB). Peak memory consumption was 56.5MB. Max. memory is 8.0GB. [2022-03-20 02:59:33,009 INFO L158 Benchmark]: TraceAbstraction took 524098.87ms. Allocated memory was 217.1MB in the beginning and 451.9MB in the end (delta: 234.9MB). Free memory was 162.1MB in the beginning and 222.9MB in the end (delta: -60.8MB). Peak memory consumption was 325.7MB. Max. memory is 8.0GB. [2022-03-20 02:59:33,009 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 180.4MB. Free memory was 146.0MB in the beginning and 145.8MB in the end (delta: 151.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 557.16ms. Allocated memory is still 180.4MB. Free memory was 126.6MB in the beginning and 136.9MB in the end (delta: -10.3MB). Peak memory consumption was 15.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 144.46ms. Allocated memory is still 180.4MB. Free memory was 136.9MB in the beginning and 129.0MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 1517.16ms. Allocated memory was 180.4MB in the beginning and 217.1MB in the end (delta: 36.7MB). Free memory was 129.0MB in the beginning and 162.6MB in the end (delta: -33.6MB). Peak memory consumption was 56.5MB. Max. memory is 8.0GB. * TraceAbstraction took 524098.87ms. Allocated memory was 217.1MB in the beginning and 451.9MB in the end (delta: 234.9MB). Free memory was 162.1MB in the beginning and 222.9MB in the end (delta: -60.8MB). Peak memory consumption was 325.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ArithmeticException: BigInteger out of long range de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArithmeticException: BigInteger out of long range: java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-03-20 02:59:33,059 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...