/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.01.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 02:46:50,415 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 02:46:50,417 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 02:46:50,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 02:46:50,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 02:46:50,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 02:46:50,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 02:46:50,465 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 02:46:50,467 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 02:46:50,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 02:46:50,472 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 02:46:50,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 02:46:50,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 02:46:50,475 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 02:46:50,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 02:46:50,476 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 02:46:50,477 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 02:46:50,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 02:46:50,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 02:46:50,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 02:46:50,485 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 02:46:50,486 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 02:46:50,487 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 02:46:50,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 02:46:50,488 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 02:46:50,493 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 02:46:50,493 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 02:46:50,493 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 02:46:50,494 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 02:46:50,494 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 02:46:50,495 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-03-20 02:46:50,499 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 02:46:50,499 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 02:46:50,500 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 02:46:50,501 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 02:46:50,523 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 02:46:50,524 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 02:46:50,524 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-20 02:46:50,524 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-20 02:46:50,524 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-20 02:46:50,525 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-20 02:46:50,525 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-20 02:46:50,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-20 02:46:50,525 INFO L138 SettingsManager]: * Use SBE=true [2022-03-20 02:46:50,526 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 02:46:50,526 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 02:46:50,526 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 02:46:50,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 02:46:50,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 02:46:50,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 02:46:50,526 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 02:46:50,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 02:46:50,527 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 02:46:50,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 02:46:50,527 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 02:46:50,527 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 02:46:50,527 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 02:46:50,527 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 02:46:50,527 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 02:46:50,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 02:46:50,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 02:46:50,528 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-20 02:46:50,528 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-20 02:46:50,528 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 02:46:50,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-20 02:46:50,528 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-20 02:46:50,528 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-03-20 02:46:50,528 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 02:46:50,528 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 02:46:50,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 02:46:50,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 02:46:50,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 02:46:50,748 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 02:46:50,749 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 02:46:50,750 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.01.i.cil-1.c [2022-03-20 02:46:50,790 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/178243d71/a061cb4a35c548f8a5aea282a6ba801a/FLAGca4092811 [2022-03-20 02:46:51,294 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 02:46:51,295 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.01.i.cil-1.c [2022-03-20 02:46:51,336 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/178243d71/a061cb4a35c548f8a5aea282a6ba801a/FLAGca4092811 [2022-03-20 02:46:51,782 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/178243d71/a061cb4a35c548f8a5aea282a6ba801a [2022-03-20 02:46:51,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 02:46:51,786 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 02:46:51,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 02:46:51,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 02:46:51,790 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 02:46:51,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 02:46:51" (1/1) ... [2022-03-20 02:46:51,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a631ecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:46:51, skipping insertion in model container [2022-03-20 02:46:51,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 02:46:51" (1/1) ... [2022-03-20 02:46:51,799 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 02:46:51,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 02:46:52,234 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.01.i.cil-1.c[72918,72931] [2022-03-20 02:46:52,250 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 02:46:52,264 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 02:46:52,388 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.01.i.cil-1.c[72918,72931] [2022-03-20 02:46:52,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 02:46:52,408 INFO L208 MainTranslator]: Completed translation [2022-03-20 02:46:52,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:46:52 WrapperNode [2022-03-20 02:46:52,409 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 02:46:52,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 02:46:52,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 02:46:52,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 02:46:52,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:46:52" (1/1) ... [2022-03-20 02:46:52,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:46:52" (1/1) ... [2022-03-20 02:46:52,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:46:52" (1/1) ... [2022-03-20 02:46:52,462 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:46:52" (1/1) ... [2022-03-20 02:46:52,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:46:52" (1/1) ... [2022-03-20 02:46:52,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:46:52" (1/1) ... [2022-03-20 02:46:52,498 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:46:52" (1/1) ... [2022-03-20 02:46:52,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 02:46:52,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 02:46:52,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 02:46:52,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 02:46:52,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:46:52" (1/1) ... [2022-03-20 02:46:52,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 02:46:52,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:46:52,557 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 02:46:52,596 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 02:46:52,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 02:46:52,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 02:46:52,611 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 02:46:52,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-20 02:46:52,613 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-20 02:46:52,613 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 02:46:52,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-20 02:46:52,613 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 02:46:52,613 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 02:46:52,614 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 02:46:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 02:46:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 02:46:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 02:46:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 02:46:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 02:46:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 02:46:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 02:46:52,615 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 02:46:52,615 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 02:46:52,615 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 02:46:52,615 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-20 02:46:52,615 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 02:46:52,615 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-20 02:46:52,615 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-20 02:46:52,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 02:46:52,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 02:46:52,615 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 02:46:52,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 02:46:52,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 02:46:52,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 02:46:52,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 02:46:52,616 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 02:46:52,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 02:46:52,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 02:46:52,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 02:46:52,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 02:46:52,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 02:46:52,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 02:46:52,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 02:46:52,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 02:46:52,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 02:46:52,739 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 02:46:52,740 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 02:46:55,075 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:46:55,556 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-20 02:46:55,557 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-20 02:46:55,570 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 02:46:55,580 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 02:46:55,580 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 02:46:55,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 02:46:55 BoogieIcfgContainer [2022-03-20 02:46:55,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 02:46:55,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 02:46:55,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 02:46:55,587 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 02:46:55,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 02:46:51" (1/3) ... [2022-03-20 02:46:55,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4587c115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 02:46:55, skipping insertion in model container [2022-03-20 02:46:55,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:46:52" (2/3) ... [2022-03-20 02:46:55,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4587c115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 02:46:55, skipping insertion in model container [2022-03-20 02:46:55,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 02:46:55" (3/3) ... [2022-03-20 02:46:55,589 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.01.i.cil-1.c [2022-03-20 02:46:55,594 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-20 02:46:55,595 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 02:46:55,659 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 02:46:55,667 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 02:46:55,667 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 02:46:55,705 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 147 states have (on average 1.6870748299319729) internal successors, (248), 148 states have internal predecessors, (248), 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 02:46:55,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-03-20 02:46:55,713 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:46:55,713 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:46:55,714 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:46:55,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:46:55,721 INFO L85 PathProgramCache]: Analyzing trace with hash 37136980, now seen corresponding path program 1 times [2022-03-20 02:46:55,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:46:55,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784250613] [2022-03-20 02:46:55,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:46:55,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:46:56,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:46:56,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:46:56,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:46:56,308 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 02:46:56,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:46:56,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784250613] [2022-03-20 02:46:56,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784250613] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:46:56,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:46:56,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:46:56,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004645661] [2022-03-20 02:46:56,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:46:56,319 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:46:56,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:46:56,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:46:56,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:46:56,347 INFO L87 Difference]: Start difference. First operand has 155 states, 147 states have (on average 1.6870748299319729) internal successors, (248), 148 states have internal predecessors, (248), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:46:57,833 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 02:46:59,850 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:47:01,869 WARN L534 Checker$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 02:47:03,889 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 02:47:04,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:47:04,417 INFO L93 Difference]: Finished difference Result 328 states and 543 transitions. [2022-03-20 02:47:04,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:47:04,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-03-20 02:47:04,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:47:04,426 INFO L225 Difference]: With dead ends: 328 [2022-03-20 02:47:04,426 INFO L226 Difference]: Without dead ends: 167 [2022-03-20 02:47:04,432 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 02:47:04,451 INFO L913 BasicCegarLoop]: 221 mSDtfsCounter, 33 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 11 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-03-20 02:47:04,452 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 583 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 404 Invalid, 3 Unknown, 0 Unchecked, 8.0s Time] [2022-03-20 02:47:04,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-03-20 02:47:04,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 150. [2022-03-20 02:47:04,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.5379310344827586) internal successors, (223), 145 states have internal predecessors, (223), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:04,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 227 transitions. [2022-03-20 02:47:04,547 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 227 transitions. Word has length 53 [2022-03-20 02:47:04,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:47:04,547 INFO L478 AbstractCegarLoop]: Abstraction has 150 states and 227 transitions. [2022-03-20 02:47:04,548 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:04,548 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 227 transitions. [2022-03-20 02:47:04,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 02:47:04,556 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:47:04,556 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:47:04,557 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 02:47:04,557 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:47:04,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:47:04,558 INFO L85 PathProgramCache]: Analyzing trace with hash -2067870814, now seen corresponding path program 1 times [2022-03-20 02:47:04,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:47:04,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32803575] [2022-03-20 02:47:04,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:47:04,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:47:04,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:04,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:47:04,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:04,770 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:47:04,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:47:04,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32803575] [2022-03-20 02:47:04,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32803575] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:47:04,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:47:04,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:47:04,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071694522] [2022-03-20 02:47:04,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:47:04,773 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:47:04,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:47:04,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:47:04,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:47:04,774 INFO L87 Difference]: Start difference. First operand 150 states and 227 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 02:47:06,791 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 02:47:07,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:47:07,311 INFO L93 Difference]: Finished difference Result 390 states and 595 transitions. [2022-03-20 02:47:07,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:47:07,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-20 02:47:07,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:47:07,314 INFO L225 Difference]: With dead ends: 390 [2022-03-20 02:47:07,314 INFO L226 Difference]: Without dead ends: 266 [2022-03-20 02:47:07,315 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 02:47:07,316 INFO L913 BasicCegarLoop]: 110 mSDtfsCounter, 140 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:47:07,316 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 321 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:47:07,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-03-20 02:47:07,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 166. [2022-03-20 02:47:07,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 161 states have (on average 1.5403726708074534) internal successors, (248), 161 states have internal predecessors, (248), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:07,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 252 transitions. [2022-03-20 02:47:07,326 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 252 transitions. Word has length 66 [2022-03-20 02:47:07,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:47:07,326 INFO L478 AbstractCegarLoop]: Abstraction has 166 states and 252 transitions. [2022-03-20 02:47:07,327 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:07,327 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 252 transitions. [2022-03-20 02:47:07,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-20 02:47:07,328 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:47:07,328 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:47:07,328 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 02:47:07,328 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:47:07,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:47:07,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1264672313, now seen corresponding path program 1 times [2022-03-20 02:47:07,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:47:07,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116716584] [2022-03-20 02:47:07,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:47:07,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:47:07,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:07,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:47:07,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:07,497 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:47:07,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:47:07,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116716584] [2022-03-20 02:47:07,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116716584] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:47:07,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:47:07,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:47:07,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241266212] [2022-03-20 02:47:07,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:47:07,498 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:47:07,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:47:07,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:47:07,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:47:07,500 INFO L87 Difference]: Start difference. First operand 166 states and 252 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 02:47:09,518 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 02:47:09,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:47:09,880 INFO L93 Difference]: Finished difference Result 321 states and 486 transitions. [2022-03-20 02:47:09,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:47:09,880 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-03-20 02:47:09,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:47:09,882 INFO L225 Difference]: With dead ends: 321 [2022-03-20 02:47:09,882 INFO L226 Difference]: Without dead ends: 181 [2022-03-20 02:47:09,883 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 02:47:09,884 INFO L913 BasicCegarLoop]: 182 mSDtfsCounter, 22 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:47:09,884 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 466 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 349 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:47:09,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-03-20 02:47:09,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 166. [2022-03-20 02:47:09,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 161 states have (on average 1.5341614906832297) internal successors, (247), 161 states have internal predecessors, (247), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:09,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 251 transitions. [2022-03-20 02:47:09,892 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 251 transitions. Word has length 67 [2022-03-20 02:47:09,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:47:09,893 INFO L478 AbstractCegarLoop]: Abstraction has 166 states and 251 transitions. [2022-03-20 02:47:09,893 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 02:47:09,893 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 251 transitions. [2022-03-20 02:47:09,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-20 02:47:09,894 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:47:09,894 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:47:09,894 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 02:47:09,894 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:47:09,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:47:09,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1566814562, now seen corresponding path program 1 times [2022-03-20 02:47:09,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:47:09,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894547970] [2022-03-20 02:47:09,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:47:09,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:47:09,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:10,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:47:10,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:10,093 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:47:10,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:47:10,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894547970] [2022-03-20 02:47:10,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894547970] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:47:10,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:47:10,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:47:10,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703829850] [2022-03-20 02:47:10,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:47:10,095 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:47:10,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:47:10,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:47:10,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:47:10,096 INFO L87 Difference]: Start difference. First operand 166 states and 251 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 02:47:12,978 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 02:47:15,019 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:47:17,044 WARN L534 Checker$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 02:47:17,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:47:17,449 INFO L93 Difference]: Finished difference Result 320 states and 484 transitions. [2022-03-20 02:47:17,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:47:17,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-03-20 02:47:17,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:47:17,451 INFO L225 Difference]: With dead ends: 320 [2022-03-20 02:47:17,451 INFO L226 Difference]: Without dead ends: 180 [2022-03-20 02:47:17,451 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 02:47:17,452 INFO L913 BasicCegarLoop]: 183 mSDtfsCounter, 20 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:47:17,452 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 468 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 348 Invalid, 3 Unknown, 0 Unchecked, 7.3s Time] [2022-03-20 02:47:17,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-03-20 02:47:17,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 166. [2022-03-20 02:47:17,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 161 states have (on average 1.5279503105590062) internal successors, (246), 161 states have internal predecessors, (246), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:17,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 250 transitions. [2022-03-20 02:47:17,460 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 250 transitions. Word has length 67 [2022-03-20 02:47:17,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:47:17,460 INFO L478 AbstractCegarLoop]: Abstraction has 166 states and 250 transitions. [2022-03-20 02:47:17,460 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 02:47:17,460 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 250 transitions. [2022-03-20 02:47:17,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-20 02:47:17,461 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:47:17,461 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:47:17,461 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 02:47:17,461 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:47:17,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:47:17,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1167044530, now seen corresponding path program 1 times [2022-03-20 02:47:17,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:47:17,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173307589] [2022-03-20 02:47:17,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:47:17,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:47:17,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:17,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:47:17,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:17,589 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:47:17,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:47:17,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173307589] [2022-03-20 02:47:17,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173307589] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:47:17,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:47:17,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:47:17,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196822899] [2022-03-20 02:47:17,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:47:17,591 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:47:17,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:47:17,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:47:17,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:47:17,592 INFO L87 Difference]: Start difference. First operand 166 states and 250 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:19,607 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 02:47:19,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:47:19,952 INFO L93 Difference]: Finished difference Result 319 states and 482 transitions. [2022-03-20 02:47:19,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:47:19,953 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-03-20 02:47:19,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:47:19,954 INFO L225 Difference]: With dead ends: 319 [2022-03-20 02:47:19,954 INFO L226 Difference]: Without dead ends: 179 [2022-03-20 02:47:19,954 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 02:47:19,955 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 26 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:47:19,955 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 470 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 345 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 02:47:19,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-03-20 02:47:19,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 166. [2022-03-20 02:47:19,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 161 states have (on average 1.5217391304347827) internal successors, (245), 161 states have internal predecessors, (245), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:19,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 249 transitions. [2022-03-20 02:47:19,964 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 249 transitions. Word has length 68 [2022-03-20 02:47:19,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:47:19,964 INFO L478 AbstractCegarLoop]: Abstraction has 166 states and 249 transitions. [2022-03-20 02:47:19,964 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:19,964 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 249 transitions. [2022-03-20 02:47:19,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-20 02:47:19,965 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:47:19,965 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:47:19,965 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 02:47:19,965 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:47:19,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:47:19,966 INFO L85 PathProgramCache]: Analyzing trace with hash -958455226, now seen corresponding path program 1 times [2022-03-20 02:47:19,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:47:19,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318319196] [2022-03-20 02:47:19,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:47:19,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:47:20,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:20,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:47:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:20,114 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:47:20,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:47:20,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318319196] [2022-03-20 02:47:20,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318319196] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:47:20,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:47:20,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:47:20,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661130736] [2022-03-20 02:47:20,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:47:20,115 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:47:20,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:47:20,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:47:20,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:47:20,117 INFO L87 Difference]: Start difference. First operand 166 states and 249 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:22,131 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 02:47:22,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:47:22,662 INFO L93 Difference]: Finished difference Result 422 states and 643 transitions. [2022-03-20 02:47:22,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:47:22,662 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-03-20 02:47:22,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:47:22,664 INFO L225 Difference]: With dead ends: 422 [2022-03-20 02:47:22,664 INFO L226 Difference]: Without dead ends: 282 [2022-03-20 02:47:22,664 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 02:47:22,665 INFO L913 BasicCegarLoop]: 110 mSDtfsCounter, 144 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:47:22,665 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 321 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:47:22,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-03-20 02:47:22,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 178. [2022-03-20 02:47:22,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 173 states have (on average 1.5086705202312138) internal successors, (261), 173 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 02:47:22,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 265 transitions. [2022-03-20 02:47:22,670 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 265 transitions. Word has length 68 [2022-03-20 02:47:22,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:47:22,670 INFO L478 AbstractCegarLoop]: Abstraction has 178 states and 265 transitions. [2022-03-20 02:47:22,670 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:22,670 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 265 transitions. [2022-03-20 02:47:22,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-20 02:47:22,675 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:47:22,675 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:47:22,675 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 02:47:22,675 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:47:22,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:47:22,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1539955179, now seen corresponding path program 1 times [2022-03-20 02:47:22,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:47:22,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825776816] [2022-03-20 02:47:22,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:47:22,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:47:22,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:22,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:47:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:22,790 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:47:22,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:47:22,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825776816] [2022-03-20 02:47:22,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825776816] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:47:22,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:47:22,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:47:22,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856075328] [2022-03-20 02:47:22,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:47:22,791 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:47:22,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:47:22,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:47:22,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:47:22,792 INFO L87 Difference]: Start difference. First operand 178 states and 265 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:24,807 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 02:47:25,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:47:25,202 INFO L93 Difference]: Finished difference Result 343 states and 514 transitions. [2022-03-20 02:47:25,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:47:25,203 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-03-20 02:47:25,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:47:25,204 INFO L225 Difference]: With dead ends: 343 [2022-03-20 02:47:25,204 INFO L226 Difference]: Without dead ends: 191 [2022-03-20 02:47:25,204 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 02:47:25,205 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 22 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:47:25,205 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 470 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 345 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:47:25,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-03-20 02:47:25,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 178. [2022-03-20 02:47:25,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 173 states have (on average 1.5028901734104045) internal successors, (260), 173 states have internal predecessors, (260), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:25,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 264 transitions. [2022-03-20 02:47:25,210 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 264 transitions. Word has length 69 [2022-03-20 02:47:25,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:47:25,210 INFO L478 AbstractCegarLoop]: Abstraction has 178 states and 264 transitions. [2022-03-20 02:47:25,210 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:25,210 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 264 transitions. [2022-03-20 02:47:25,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-03-20 02:47:25,211 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:47:25,211 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:47:25,211 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 02:47:25,211 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:47:25,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:47:25,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1242715221, now seen corresponding path program 1 times [2022-03-20 02:47:25,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:47:25,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114176009] [2022-03-20 02:47:25,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:47:25,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:47:25,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:25,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:47:25,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:25,323 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:47:25,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:47:25,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114176009] [2022-03-20 02:47:25,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114176009] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:47:25,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:47:25,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:47:25,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812665658] [2022-03-20 02:47:25,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:47:25,323 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:47:25,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:47:25,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:47:25,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:47:25,324 INFO L87 Difference]: Start difference. First operand 178 states and 264 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:27,334 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 02:47:27,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:47:27,706 INFO L93 Difference]: Finished difference Result 343 states and 513 transitions. [2022-03-20 02:47:27,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:47:27,706 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2022-03-20 02:47:27,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:47:27,708 INFO L225 Difference]: With dead ends: 343 [2022-03-20 02:47:27,708 INFO L226 Difference]: Without dead ends: 191 [2022-03-20 02:47:27,708 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 02:47:27,709 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 20 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:47:27,709 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 470 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 345 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:47:27,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-03-20 02:47:27,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 178. [2022-03-20 02:47:27,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 173 states have (on average 1.4971098265895955) internal successors, (259), 173 states have internal predecessors, (259), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:27,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 263 transitions. [2022-03-20 02:47:27,715 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 263 transitions. Word has length 70 [2022-03-20 02:47:27,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:47:27,717 INFO L478 AbstractCegarLoop]: Abstraction has 178 states and 263 transitions. [2022-03-20 02:47:27,717 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:27,717 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 263 transitions. [2022-03-20 02:47:27,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-03-20 02:47:27,718 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:47:27,718 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:47:27,718 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 02:47:27,718 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:47:27,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:47:27,719 INFO L85 PathProgramCache]: Analyzing trace with hash 265614375, now seen corresponding path program 1 times [2022-03-20 02:47:27,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:47:27,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167815729] [2022-03-20 02:47:27,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:47:27,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:47:27,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:27,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:47:27,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:27,819 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:47:27,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:47:27,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167815729] [2022-03-20 02:47:27,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167815729] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:47:27,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:47:27,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:47:27,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086936644] [2022-03-20 02:47:27,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:47:27,820 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:47:27,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:47:27,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:47:27,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:47:27,820 INFO L87 Difference]: Start difference. First operand 178 states and 263 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:29,835 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 02:47:30,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:47:30,289 INFO L93 Difference]: Finished difference Result 450 states and 680 transitions. [2022-03-20 02:47:30,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:47:30,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2022-03-20 02:47:30,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:47:30,291 INFO L225 Difference]: With dead ends: 450 [2022-03-20 02:47:30,291 INFO L226 Difference]: Without dead ends: 298 [2022-03-20 02:47:30,292 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 02:47:30,292 INFO L913 BasicCegarLoop]: 110 mSDtfsCounter, 112 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:47:30,293 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 322 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:47:30,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-03-20 02:47:30,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 225. [2022-03-20 02:47:30,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 220 states have (on average 1.5681818181818181) internal successors, (345), 220 states have internal predecessors, (345), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:30,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 349 transitions. [2022-03-20 02:47:30,305 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 349 transitions. Word has length 70 [2022-03-20 02:47:30,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:47:30,305 INFO L478 AbstractCegarLoop]: Abstraction has 225 states and 349 transitions. [2022-03-20 02:47:30,305 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:30,306 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 349 transitions. [2022-03-20 02:47:30,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-03-20 02:47:30,306 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:47:30,306 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:47:30,307 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 02:47:30,307 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:47:30,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:47:30,307 INFO L85 PathProgramCache]: Analyzing trace with hash -575840767, now seen corresponding path program 1 times [2022-03-20 02:47:30,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:47:30,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790012288] [2022-03-20 02:47:30,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:47:30,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:47:30,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:30,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:47:30,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:30,449 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:47:30,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:47:30,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790012288] [2022-03-20 02:47:30,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790012288] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:47:30,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:47:30,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:47:30,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897039278] [2022-03-20 02:47:30,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:47:30,450 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:47:30,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:47:30,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:47:30,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:47:30,455 INFO L87 Difference]: Start difference. First operand 225 states and 349 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:32,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:47:33,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:47:33,037 INFO L93 Difference]: Finished difference Result 524 states and 819 transitions. [2022-03-20 02:47:33,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:47:33,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2022-03-20 02:47:33,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:47:33,040 INFO L225 Difference]: With dead ends: 524 [2022-03-20 02:47:33,040 INFO L226 Difference]: Without dead ends: 323 [2022-03-20 02:47:33,041 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 02:47:33,041 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 113 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:47:33,042 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 337 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 02:47:33,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2022-03-20 02:47:33,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 251. [2022-03-20 02:47:33,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 246 states have (on average 1.6097560975609757) internal successors, (396), 246 states have internal predecessors, (396), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:33,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 400 transitions. [2022-03-20 02:47:33,050 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 400 transitions. Word has length 71 [2022-03-20 02:47:33,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:47:33,051 INFO L478 AbstractCegarLoop]: Abstraction has 251 states and 400 transitions. [2022-03-20 02:47:33,051 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:33,051 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 400 transitions. [2022-03-20 02:47:33,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-03-20 02:47:33,052 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:47:33,052 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, 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 02:47:33,053 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 02:47:33,053 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:47:33,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:47:33,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1866705909, now seen corresponding path program 1 times [2022-03-20 02:47:33,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:47:33,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491298259] [2022-03-20 02:47:33,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:47:33,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:47:33,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:33,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:47:33,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:33,179 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-20 02:47:33,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:47:33,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491298259] [2022-03-20 02:47:33,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491298259] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:47:33,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:47:33,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:47:33,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733585342] [2022-03-20 02:47:33,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:47:33,181 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:47:33,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:47:33,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:47:33,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:47:33,182 INFO L87 Difference]: Start difference. First operand 251 states and 400 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:35,199 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 02:47:35,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:47:35,690 INFO L93 Difference]: Finished difference Result 519 states and 833 transitions. [2022-03-20 02:47:35,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:47:35,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2022-03-20 02:47:35,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:47:35,692 INFO L225 Difference]: With dead ends: 519 [2022-03-20 02:47:35,692 INFO L226 Difference]: Without dead ends: 294 [2022-03-20 02:47:35,692 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 02:47:35,693 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 32 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:47:35,693 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 514 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 406 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:47:35,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-03-20 02:47:35,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 273. [2022-03-20 02:47:35,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 268 states have (on average 1.6119402985074627) internal successors, (432), 268 states have internal predecessors, (432), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:35,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 436 transitions. [2022-03-20 02:47:35,698 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 436 transitions. Word has length 100 [2022-03-20 02:47:35,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:47:35,698 INFO L478 AbstractCegarLoop]: Abstraction has 273 states and 436 transitions. [2022-03-20 02:47:35,698 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:35,698 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 436 transitions. [2022-03-20 02:47:35,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-20 02:47:35,700 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:47:35,700 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:47:35,700 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 02:47:35,700 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:47:35,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:47:35,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1204637484, now seen corresponding path program 1 times [2022-03-20 02:47:35,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:47:35,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853279395] [2022-03-20 02:47:35,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:47:35,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:47:35,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:35,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:47:35,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:35,811 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-20 02:47:35,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:47:35,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853279395] [2022-03-20 02:47:35,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853279395] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:47:35,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:47:35,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:47:35,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141943337] [2022-03-20 02:47:35,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:47:35,811 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:47:35,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:47:35,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:47:35,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:47:35,812 INFO L87 Difference]: Start difference. First operand 273 states and 436 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:37,819 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 02:47:38,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:47:38,371 INFO L93 Difference]: Finished difference Result 592 states and 938 transitions. [2022-03-20 02:47:38,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:47:38,371 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have 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 02:47:38,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:47:38,373 INFO L225 Difference]: With dead ends: 592 [2022-03-20 02:47:38,373 INFO L226 Difference]: Without dead ends: 345 [2022-03-20 02:47:38,374 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 02:47:38,375 INFO L913 BasicCegarLoop]: 120 mSDtfsCounter, 138 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:47:38,375 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 341 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 473 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:47:38,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2022-03-20 02:47:38,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 273. [2022-03-20 02:47:38,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 268 states have (on average 1.5932835820895523) internal successors, (427), 268 states have internal predecessors, (427), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:38,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 431 transitions. [2022-03-20 02:47:38,383 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 431 transitions. Word has length 101 [2022-03-20 02:47:38,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:47:38,383 INFO L478 AbstractCegarLoop]: Abstraction has 273 states and 431 transitions. [2022-03-20 02:47:38,384 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:38,384 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 431 transitions. [2022-03-20 02:47:38,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-03-20 02:47:38,385 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:47:38,385 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, 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 02:47:38,385 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 02:47:38,385 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:47:38,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:47:38,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1288994050, now seen corresponding path program 1 times [2022-03-20 02:47:38,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:47:38,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608250693] [2022-03-20 02:47:38,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:47:38,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:47:38,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:38,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:47:38,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:38,497 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-20 02:47:38,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:47:38,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608250693] [2022-03-20 02:47:38,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608250693] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:47:38,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:47:38,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:47:38,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489911021] [2022-03-20 02:47:38,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:47:38,498 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:47:38,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:47:38,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:47:38,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:47:38,499 INFO L87 Difference]: Start difference. First operand 273 states and 431 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:40,517 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 02:47:41,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:47:41,097 INFO L93 Difference]: Finished difference Result 592 states and 929 transitions. [2022-03-20 02:47:41,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:47:41,098 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 114 [2022-03-20 02:47:41,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:47:41,100 INFO L225 Difference]: With dead ends: 592 [2022-03-20 02:47:41,100 INFO L226 Difference]: Without dead ends: 345 [2022-03-20 02:47:41,101 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 02:47:41,102 INFO L913 BasicCegarLoop]: 120 mSDtfsCounter, 136 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:47:41,102 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 341 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 473 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 02:47:41,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2022-03-20 02:47:41,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 273. [2022-03-20 02:47:41,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 268 states have (on average 1.5820895522388059) internal successors, (424), 268 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 02:47:41,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 428 transitions. [2022-03-20 02:47:41,113 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 428 transitions. Word has length 114 [2022-03-20 02:47:41,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:47:41,113 INFO L478 AbstractCegarLoop]: Abstraction has 273 states and 428 transitions. [2022-03-20 02:47:41,113 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:41,113 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 428 transitions. [2022-03-20 02:47:41,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-03-20 02:47:41,114 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:47:41,114 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:47:41,115 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 02:47:41,115 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:47:41,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:47:41,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1042443943, now seen corresponding path program 1 times [2022-03-20 02:47:41,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:47:41,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313358603] [2022-03-20 02:47:41,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:47:41,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:47:41,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:41,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:47:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:41,277 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-20 02:47:41,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:47:41,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313358603] [2022-03-20 02:47:41,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313358603] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:47:41,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:47:41,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:47:41,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383851643] [2022-03-20 02:47:41,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:47:41,278 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:47:41,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:47:41,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:47:41,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:47:41,279 INFO L87 Difference]: Start difference. First operand 273 states and 428 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:43,295 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 02:47:43,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:47:43,774 INFO L93 Difference]: Finished difference Result 591 states and 922 transitions. [2022-03-20 02:47:43,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:47:43,774 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 114 [2022-03-20 02:47:43,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:47:43,775 INFO L225 Difference]: With dead ends: 591 [2022-03-20 02:47:43,775 INFO L226 Difference]: Without dead ends: 344 [2022-03-20 02:47:43,776 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 02:47:43,776 INFO L913 BasicCegarLoop]: 121 mSDtfsCounter, 134 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:47:43,777 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 343 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 471 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:47:43,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2022-03-20 02:47:43,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 273. [2022-03-20 02:47:43,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 268 states have (on average 1.5708955223880596) internal successors, (421), 268 states have internal predecessors, (421), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:43,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 425 transitions. [2022-03-20 02:47:43,782 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 425 transitions. Word has length 114 [2022-03-20 02:47:43,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:47:43,782 INFO L478 AbstractCegarLoop]: Abstraction has 273 states and 425 transitions. [2022-03-20 02:47:43,782 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:43,782 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 425 transitions. [2022-03-20 02:47:43,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-03-20 02:47:43,784 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:47:43,784 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:47:43,785 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 02:47:43,785 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:47:43,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:47:43,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1504746339, now seen corresponding path program 1 times [2022-03-20 02:47:43,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:47:43,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802680107] [2022-03-20 02:47:43,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:47:43,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:47:43,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:43,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:47:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:43,955 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-20 02:47:43,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:47:43,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802680107] [2022-03-20 02:47:43,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802680107] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:47:43,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:47:43,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:47:43,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711545127] [2022-03-20 02:47:43,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:47:43,956 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:47:43,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:47:43,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:47:43,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:47:43,956 INFO L87 Difference]: Start difference. First operand 273 states and 425 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 02:47:45,975 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 02:47:46,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:47:46,372 INFO L93 Difference]: Finished difference Result 533 states and 836 transitions. [2022-03-20 02:47:46,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:47:46,372 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 115 [2022-03-20 02:47:46,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:47:46,373 INFO L225 Difference]: With dead ends: 533 [2022-03-20 02:47:46,373 INFO L226 Difference]: Without dead ends: 286 [2022-03-20 02:47:46,374 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 02:47:46,374 INFO L913 BasicCegarLoop]: 221 mSDtfsCounter, 20 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:47:46,374 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 549 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 386 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:47:46,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-03-20 02:47:46,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 273. [2022-03-20 02:47:46,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 268 states have (on average 1.5671641791044777) internal successors, (420), 268 states have internal predecessors, (420), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:46,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 424 transitions. [2022-03-20 02:47:46,379 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 424 transitions. Word has length 115 [2022-03-20 02:47:46,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:47:46,379 INFO L478 AbstractCegarLoop]: Abstraction has 273 states and 424 transitions. [2022-03-20 02:47:46,380 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 02:47:46,380 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 424 transitions. [2022-03-20 02:47:46,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-03-20 02:47:46,380 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:47:46,380 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:47:46,380 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 02:47:46,381 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:47:46,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:47:46,381 INFO L85 PathProgramCache]: Analyzing trace with hash 2009147108, now seen corresponding path program 1 times [2022-03-20 02:47:46,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:47:46,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628050411] [2022-03-20 02:47:46,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:47:46,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:47:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:46,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:47:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:46,508 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-03-20 02:47:46,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:47:46,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628050411] [2022-03-20 02:47:46,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628050411] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:47:46,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:47:46,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 02:47:46,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863381567] [2022-03-20 02:47:46,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:47:46,510 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 02:47:46,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:47:46,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 02:47:46,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:47:46,510 INFO L87 Difference]: Start difference. First operand 273 states and 424 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 5 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 02:47:48,521 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 02:47:48,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:47:48,976 INFO L93 Difference]: Finished difference Result 529 states and 830 transitions. [2022-03-20 02:47:48,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 02:47:48,977 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 5 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 116 [2022-03-20 02:47:48,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:47:48,978 INFO L225 Difference]: With dead ends: 529 [2022-03-20 02:47:48,978 INFO L226 Difference]: Without dead ends: 282 [2022-03-20 02:47:48,979 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-20 02:47:48,979 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 2 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:47:48,979 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 605 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 424 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:47:48,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-03-20 02:47:48,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2022-03-20 02:47:48,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 277 states have (on average 1.555956678700361) internal successors, (431), 277 states have internal predecessors, (431), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:48,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 435 transitions. [2022-03-20 02:47:48,985 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 435 transitions. Word has length 116 [2022-03-20 02:47:48,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:47:48,985 INFO L478 AbstractCegarLoop]: Abstraction has 282 states and 435 transitions. [2022-03-20 02:47:48,986 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 5 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 02:47:48,986 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 435 transitions. [2022-03-20 02:47:48,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-20 02:47:48,987 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:47:48,987 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:47:49,003 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 02:47:49,003 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:47:49,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:47:49,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1788470981, now seen corresponding path program 1 times [2022-03-20 02:47:49,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:47:49,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886812752] [2022-03-20 02:47:49,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:47:49,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:47:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:49,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:47:49,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:49,222 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-20 02:47:49,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:47:49,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886812752] [2022-03-20 02:47:49,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886812752] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:47:49,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:47:49,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:47:49,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354414736] [2022-03-20 02:47:49,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:47:49,224 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:47:49,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:47:49,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:47:49,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:47:49,225 INFO L87 Difference]: Start difference. First operand 282 states and 435 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:51,255 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 02:47:51,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:47:51,702 INFO L93 Difference]: Finished difference Result 565 states and 875 transitions. [2022-03-20 02:47:51,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:47:51,702 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-03-20 02:47:51,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:47:51,704 INFO L225 Difference]: With dead ends: 565 [2022-03-20 02:47:51,704 INFO L226 Difference]: Without dead ends: 309 [2022-03-20 02:47:51,704 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 02:47:51,705 INFO L913 BasicCegarLoop]: 191 mSDtfsCounter, 37 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:47:51,705 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 488 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 380 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:47:51,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-03-20 02:47:51,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 282. [2022-03-20 02:47:51,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 277 states have (on average 1.552346570397112) internal successors, (430), 277 states have internal predecessors, (430), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:51,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 434 transitions. [2022-03-20 02:47:51,715 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 434 transitions. Word has length 117 [2022-03-20 02:47:51,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:47:51,716 INFO L478 AbstractCegarLoop]: Abstraction has 282 states and 434 transitions. [2022-03-20 02:47:51,716 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:51,716 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 434 transitions. [2022-03-20 02:47:51,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-20 02:47:51,717 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:47:51,717 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:47:51,717 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 02:47:51,717 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:47:51,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:47:51,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1687163659, now seen corresponding path program 1 times [2022-03-20 02:47:51,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:47:51,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775225165] [2022-03-20 02:47:51,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:47:51,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:47:51,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:51,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:47:51,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:51,859 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-20 02:47:51,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:47:51,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775225165] [2022-03-20 02:47:51,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775225165] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:47:51,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:47:51,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:47:51,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478971392] [2022-03-20 02:47:51,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:47:51,860 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:47:51,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:47:51,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:47:51,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:47:51,860 INFO L87 Difference]: Start difference. First operand 282 states and 434 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:53,875 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 02:47:54,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:47:54,309 INFO L93 Difference]: Finished difference Result 555 states and 860 transitions. [2022-03-20 02:47:54,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:47:54,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-03-20 02:47:54,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:47:54,314 INFO L225 Difference]: With dead ends: 555 [2022-03-20 02:47:54,314 INFO L226 Difference]: Without dead ends: 299 [2022-03-20 02:47:54,315 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 02:47:54,317 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 34 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:47:54,317 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 490 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 378 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:47:54,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2022-03-20 02:47:54,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 282. [2022-03-20 02:47:54,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 277 states have (on average 1.5487364620938628) internal successors, (429), 277 states have internal predecessors, (429), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:54,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 433 transitions. [2022-03-20 02:47:54,323 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 433 transitions. Word has length 118 [2022-03-20 02:47:54,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:47:54,324 INFO L478 AbstractCegarLoop]: Abstraction has 282 states and 433 transitions. [2022-03-20 02:47:54,324 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:54,324 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 433 transitions. [2022-03-20 02:47:54,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-20 02:47:54,325 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:47:54,325 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:47:54,325 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 02:47:54,325 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:47:54,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:47:54,325 INFO L85 PathProgramCache]: Analyzing trace with hash -350606646, now seen corresponding path program 1 times [2022-03-20 02:47:54,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:47:54,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658755349] [2022-03-20 02:47:54,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:47:54,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:47:54,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:54,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:47:54,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:54,427 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 02:47:54,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:47:54,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658755349] [2022-03-20 02:47:54,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658755349] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:47:54,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:47:54,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:47:54,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5741163] [2022-03-20 02:47:54,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:47:54,429 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:47:54,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:47:54,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:47:54,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:47:54,429 INFO L87 Difference]: Start difference. First operand 282 states and 433 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 02:47:56,438 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 02:47:56,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:47:56,980 INFO L93 Difference]: Finished difference Result 656 states and 1011 transitions. [2022-03-20 02:47:56,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:47:56,981 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 02:47:56,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:47:56,995 INFO L225 Difference]: With dead ends: 656 [2022-03-20 02:47:56,996 INFO L226 Difference]: Without dead ends: 400 [2022-03-20 02:47:56,997 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 02:47:56,998 INFO L913 BasicCegarLoop]: 127 mSDtfsCounter, 117 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:47:56,998 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 355 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:47:56,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-03-20 02:47:57,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 314. [2022-03-20 02:47:57,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 309 states have (on average 1.5566343042071198) internal successors, (481), 309 states have internal predecessors, (481), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:57,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 485 transitions. [2022-03-20 02:47:57,018 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 485 transitions. Word has length 122 [2022-03-20 02:47:57,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:47:57,019 INFO L478 AbstractCegarLoop]: Abstraction has 314 states and 485 transitions. [2022-03-20 02:47:57,019 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 02:47:57,019 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 485 transitions. [2022-03-20 02:47:57,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-03-20 02:47:57,020 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:47:57,020 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:47:57,020 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 02:47:57,020 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:47:57,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:47:57,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1294563899, now seen corresponding path program 1 times [2022-03-20 02:47:57,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:47:57,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544567381] [2022-03-20 02:47:57,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:47:57,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:47:57,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:57,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:47:57,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:57,144 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-20 02:47:57,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:47:57,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544567381] [2022-03-20 02:47:57,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544567381] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:47:57,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:47:57,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:47:57,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777675144] [2022-03-20 02:47:57,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:47:57,145 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:47:57,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:47:57,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:47:57,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:47:57,146 INFO L87 Difference]: Start difference. First operand 314 states and 485 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:59,160 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 02:47:59,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:47:59,536 INFO L93 Difference]: Finished difference Result 609 states and 950 transitions. [2022-03-20 02:47:59,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:47:59,536 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have 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 02:47:59,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:47:59,538 INFO L225 Difference]: With dead ends: 609 [2022-03-20 02:47:59,538 INFO L226 Difference]: Without dead ends: 321 [2022-03-20 02:47:59,538 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 02:47:59,539 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 30 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:47:59,539 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 504 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 364 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:47:59,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-03-20 02:47:59,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 314. [2022-03-20 02:47:59,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 309 states have (on average 1.5533980582524272) internal successors, (480), 309 states have internal predecessors, (480), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:59,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 484 transitions. [2022-03-20 02:47:59,550 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 484 transitions. Word has length 128 [2022-03-20 02:47:59,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:47:59,550 INFO L478 AbstractCegarLoop]: Abstraction has 314 states and 484 transitions. [2022-03-20 02:47:59,551 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:47:59,551 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 484 transitions. [2022-03-20 02:47:59,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-20 02:47:59,551 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:47:59,551 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:47:59,552 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 02:47:59,552 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:47:59,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:47:59,552 INFO L85 PathProgramCache]: Analyzing trace with hash 350138197, now seen corresponding path program 1 times [2022-03-20 02:47:59,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:47:59,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120028316] [2022-03-20 02:47:59,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:47:59,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:47:59,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:59,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:47:59,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:47:59,650 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 02:47:59,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:47:59,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120028316] [2022-03-20 02:47:59,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120028316] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:47:59,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:47:59,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:47:59,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022240153] [2022-03-20 02:47:59,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:47:59,652 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:47:59,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:47:59,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:47:59,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:47:59,652 INFO L87 Difference]: Start difference. First operand 314 states and 484 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 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 02:48:01,668 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 02:48:02,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:48:02,323 INFO L93 Difference]: Finished difference Result 885 states and 1387 transitions. [2022-03-20 02:48:02,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:48:02,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 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 133 [2022-03-20 02:48:02,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:48:02,327 INFO L225 Difference]: With dead ends: 885 [2022-03-20 02:48:02,327 INFO L226 Difference]: Without dead ends: 597 [2022-03-20 02:48:02,328 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 02:48:02,328 INFO L913 BasicCegarLoop]: 370 mSDtfsCounter, 135 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:48:02,328 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 565 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 395 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 02:48:02,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2022-03-20 02:48:02,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 597. [2022-03-20 02:48:02,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 592 states have (on average 1.5591216216216217) internal successors, (923), 592 states have internal predecessors, (923), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:02,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 927 transitions. [2022-03-20 02:48:02,343 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 927 transitions. Word has length 133 [2022-03-20 02:48:02,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:48:02,343 INFO L478 AbstractCegarLoop]: Abstraction has 597 states and 927 transitions. [2022-03-20 02:48:02,343 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 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 02:48:02,343 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 927 transitions. [2022-03-20 02:48:02,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-20 02:48:02,345 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:48:02,345 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:48:02,345 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 02:48:02,345 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:48:02,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:48:02,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1243624535, now seen corresponding path program 1 times [2022-03-20 02:48:02,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:48:02,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270268994] [2022-03-20 02:48:02,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:48:02,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:48:02,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:02,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:48:02,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:02,472 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 02:48:02,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:48:02,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270268994] [2022-03-20 02:48:02,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270268994] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:48:02,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:48:02,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:48:02,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791714763] [2022-03-20 02:48:02,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:48:02,473 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:48:02,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:48:02,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:48:02,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:48:02,473 INFO L87 Difference]: Start difference. First operand 597 states and 927 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:04,492 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 02:48:04,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:48:04,813 INFO L93 Difference]: Finished difference Result 1409 states and 2201 transitions. [2022-03-20 02:48:04,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:48:04,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-20 02:48:04,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:48:04,817 INFO L225 Difference]: With dead ends: 1409 [2022-03-20 02:48:04,817 INFO L226 Difference]: Without dead ends: 838 [2022-03-20 02:48:04,818 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 02:48:04,818 INFO L913 BasicCegarLoop]: 243 mSDtfsCounter, 138 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:48:04,819 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 438 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 267 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 02:48:04,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2022-03-20 02:48:04,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2022-03-20 02:48:04,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 833 states have (on average 1.553421368547419) internal successors, (1294), 833 states have internal predecessors, (1294), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:04,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1298 transitions. [2022-03-20 02:48:04,837 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1298 transitions. Word has length 133 [2022-03-20 02:48:04,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:48:04,837 INFO L478 AbstractCegarLoop]: Abstraction has 838 states and 1298 transitions. [2022-03-20 02:48:04,841 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:04,841 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1298 transitions. [2022-03-20 02:48:04,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-20 02:48:04,843 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:48:04,843 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:48:04,843 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 02:48:04,843 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:48:04,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:48:04,844 INFO L85 PathProgramCache]: Analyzing trace with hash 657348313, now seen corresponding path program 1 times [2022-03-20 02:48:04,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:48:04,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751664945] [2022-03-20 02:48:04,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:48:04,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:48:04,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:04,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:48:04,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:04,953 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-20 02:48:04,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:48:04,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751664945] [2022-03-20 02:48:04,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751664945] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:48:04,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:48:04,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:48:04,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912294429] [2022-03-20 02:48:04,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:48:04,955 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:48:04,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:48:04,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:48:04,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:48:04,956 INFO L87 Difference]: Start difference. First operand 838 states and 1298 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:06,966 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 02:48:07,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:48:07,236 INFO L93 Difference]: Finished difference Result 1677 states and 2603 transitions. [2022-03-20 02:48:07,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:48:07,236 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-20 02:48:07,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:48:07,239 INFO L225 Difference]: With dead ends: 1677 [2022-03-20 02:48:07,239 INFO L226 Difference]: Without dead ends: 865 [2022-03-20 02:48:07,240 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 02:48:07,240 INFO L913 BasicCegarLoop]: 216 mSDtfsCounter, 15 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:48:07,241 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 411 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 232 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 02:48:07,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2022-03-20 02:48:07,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2022-03-20 02:48:07,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 860 states have (on average 1.5453488372093023) internal successors, (1329), 860 states have internal predecessors, (1329), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:07,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1333 transitions. [2022-03-20 02:48:07,254 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1333 transitions. Word has length 133 [2022-03-20 02:48:07,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:48:07,254 INFO L478 AbstractCegarLoop]: Abstraction has 865 states and 1333 transitions. [2022-03-20 02:48:07,254 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:07,254 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1333 transitions. [2022-03-20 02:48:07,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-20 02:48:07,255 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:48:07,256 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:48:07,256 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 02:48:07,256 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:48:07,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:48:07,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1484512165, now seen corresponding path program 1 times [2022-03-20 02:48:07,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:48:07,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135716029] [2022-03-20 02:48:07,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:48:07,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:48:07,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:07,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:48:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:07,343 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-03-20 02:48:07,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:48:07,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135716029] [2022-03-20 02:48:07,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135716029] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:48:07,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:48:07,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:48:07,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002393741] [2022-03-20 02:48:07,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:48:07,344 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:48:07,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:48:07,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:48:07,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:48:07,345 INFO L87 Difference]: Start difference. First operand 865 states and 1333 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:09,359 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 02:48:09,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:48:09,691 INFO L93 Difference]: Finished difference Result 1706 states and 2639 transitions. [2022-03-20 02:48:09,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:48:09,692 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-20 02:48:09,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:48:09,695 INFO L225 Difference]: With dead ends: 1706 [2022-03-20 02:48:09,695 INFO L226 Difference]: Without dead ends: 867 [2022-03-20 02:48:09,696 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 02:48:09,697 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 4 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:48:09,697 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 390 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 218 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 02:48:09,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2022-03-20 02:48:09,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 867. [2022-03-20 02:48:09,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 862 states have (on average 1.5440835266821347) internal successors, (1331), 862 states have internal predecessors, (1331), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:09,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1335 transitions. [2022-03-20 02:48:09,715 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1335 transitions. Word has length 133 [2022-03-20 02:48:09,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:48:09,715 INFO L478 AbstractCegarLoop]: Abstraction has 867 states and 1335 transitions. [2022-03-20 02:48:09,715 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:09,715 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1335 transitions. [2022-03-20 02:48:09,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-03-20 02:48:09,717 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:48:09,717 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 02:48:09,717 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 02:48:09,718 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:48:09,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:48:09,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1097040258, now seen corresponding path program 1 times [2022-03-20 02:48:09,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:48:09,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303653157] [2022-03-20 02:48:09,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:48:09,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:48:09,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:09,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:48:09,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:09,862 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-03-20 02:48:09,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:48:09,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303653157] [2022-03-20 02:48:09,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303653157] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:48:09,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:48:09,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:48:09,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036306148] [2022-03-20 02:48:09,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:48:09,863 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:48:09,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:48:09,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:48:09,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:48:09,863 INFO L87 Difference]: Start difference. First operand 867 states and 1335 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:11,872 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 02:48:12,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:48:12,467 INFO L93 Difference]: Finished difference Result 1829 states and 2795 transitions. [2022-03-20 02:48:12,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:48:12,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 213 [2022-03-20 02:48:12,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:48:12,482 INFO L225 Difference]: With dead ends: 1829 [2022-03-20 02:48:12,482 INFO L226 Difference]: Without dead ends: 990 [2022-03-20 02:48:12,484 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 02:48:12,484 INFO L913 BasicCegarLoop]: 264 mSDtfsCounter, 82 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:48:12,485 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 633 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 608 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 02:48:12,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2022-03-20 02:48:12,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 867. [2022-03-20 02:48:12,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 862 states have (on average 1.5417633410672853) internal successors, (1329), 862 states have internal predecessors, (1329), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:12,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1333 transitions. [2022-03-20 02:48:12,504 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1333 transitions. Word has length 213 [2022-03-20 02:48:12,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:48:12,505 INFO L478 AbstractCegarLoop]: Abstraction has 867 states and 1333 transitions. [2022-03-20 02:48:12,505 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:12,506 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1333 transitions. [2022-03-20 02:48:12,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-03-20 02:48:12,508 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:48:12,508 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 02:48:12,508 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 02:48:12,508 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:48:12,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:48:12,508 INFO L85 PathProgramCache]: Analyzing trace with hash -763792000, now seen corresponding path program 1 times [2022-03-20 02:48:12,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:48:12,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926949155] [2022-03-20 02:48:12,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:48:12,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:48:12,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:12,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:48:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:12,675 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 266 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-03-20 02:48:12,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:48:12,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926949155] [2022-03-20 02:48:12,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926949155] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:48:12,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:48:12,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:48:12,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136570713] [2022-03-20 02:48:12,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:48:12,676 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:48:12,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:48:12,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:48:12,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:48:12,677 INFO L87 Difference]: Start difference. First operand 867 states and 1333 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:14,559 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:48:16,592 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:48:18,616 WARN L534 Checker$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 02:48:20,633 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 02:48:21,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:48:21,133 INFO L93 Difference]: Finished difference Result 1823 states and 2783 transitions. [2022-03-20 02:48:21,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:48:21,133 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 214 [2022-03-20 02:48:21,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:48:21,136 INFO L225 Difference]: With dead ends: 1823 [2022-03-20 02:48:21,136 INFO L226 Difference]: Without dead ends: 984 [2022-03-20 02:48:21,137 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 02:48:21,138 INFO L913 BasicCegarLoop]: 261 mSDtfsCounter, 76 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:48:21,139 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 627 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 595 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2022-03-20 02:48:21,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2022-03-20 02:48:21,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 867. [2022-03-20 02:48:21,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 862 states have (on average 1.5394431554524362) internal successors, (1327), 862 states have internal predecessors, (1327), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:21,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1331 transitions. [2022-03-20 02:48:21,152 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1331 transitions. Word has length 214 [2022-03-20 02:48:21,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:48:21,152 INFO L478 AbstractCegarLoop]: Abstraction has 867 states and 1331 transitions. [2022-03-20 02:48:21,152 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:21,153 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1331 transitions. [2022-03-20 02:48:21,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-03-20 02:48:21,154 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:48:21,154 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 02:48:21,154 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-20 02:48:21,154 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:48:21,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:48:21,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1869327072, now seen corresponding path program 1 times [2022-03-20 02:48:21,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:48:21,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464001691] [2022-03-20 02:48:21,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:48:21,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:48:21,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:21,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:48:21,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:21,282 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-03-20 02:48:21,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:48:21,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464001691] [2022-03-20 02:48:21,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464001691] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:48:21,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:48:21,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:48:21,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436743241] [2022-03-20 02:48:21,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:48:21,283 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:48:21,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:48:21,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:48:21,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:48:21,284 INFO L87 Difference]: Start difference. First operand 867 states and 1331 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:23,292 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 02:48:23,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:48:23,860 INFO L93 Difference]: Finished difference Result 1823 states and 2779 transitions. [2022-03-20 02:48:23,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:48:23,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 230 [2022-03-20 02:48:23,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:48:23,863 INFO L225 Difference]: With dead ends: 1823 [2022-03-20 02:48:23,863 INFO L226 Difference]: Without dead ends: 984 [2022-03-20 02:48:23,869 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 02:48:23,870 INFO L913 BasicCegarLoop]: 260 mSDtfsCounter, 102 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:48:23,870 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 625 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 593 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:48:23,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2022-03-20 02:48:23,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 867. [2022-03-20 02:48:23,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 862 states have (on average 1.537122969837587) internal successors, (1325), 862 states have internal predecessors, (1325), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:23,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1329 transitions. [2022-03-20 02:48:23,881 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1329 transitions. Word has length 230 [2022-03-20 02:48:23,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:48:23,881 INFO L478 AbstractCegarLoop]: Abstraction has 867 states and 1329 transitions. [2022-03-20 02:48:23,881 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:23,881 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1329 transitions. [2022-03-20 02:48:23,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-20 02:48:23,883 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:48:23,883 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 02:48:23,883 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-20 02:48:23,884 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:48:23,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:48:23,884 INFO L85 PathProgramCache]: Analyzing trace with hash -369536766, now seen corresponding path program 1 times [2022-03-20 02:48:23,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:48:23,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423429728] [2022-03-20 02:48:23,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:48:23,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:48:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:24,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:48:24,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:24,003 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-03-20 02:48:24,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:48:24,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423429728] [2022-03-20 02:48:24,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423429728] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:48:24,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:48:24,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:48:24,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846221225] [2022-03-20 02:48:24,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:48:24,004 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:48:24,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:48:24,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:48:24,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:48:24,005 INFO L87 Difference]: Start difference. First operand 867 states and 1329 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:26,013 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 02:48:26,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:48:26,500 INFO L93 Difference]: Finished difference Result 1937 states and 2929 transitions. [2022-03-20 02:48:26,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:48:26,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 231 [2022-03-20 02:48:26,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:48:26,503 INFO L225 Difference]: With dead ends: 1937 [2022-03-20 02:48:26,503 INFO L226 Difference]: Without dead ends: 1098 [2022-03-20 02:48:26,504 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 02:48:26,504 INFO L913 BasicCegarLoop]: 112 mSDtfsCounter, 136 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:48:26,504 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 325 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:48:26,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2022-03-20 02:48:26,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 867. [2022-03-20 02:48:26,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 862 states have (on average 1.5243619489559164) internal successors, (1314), 862 states have internal predecessors, (1314), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:26,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1318 transitions. [2022-03-20 02:48:26,517 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1318 transitions. Word has length 231 [2022-03-20 02:48:26,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:48:26,517 INFO L478 AbstractCegarLoop]: Abstraction has 867 states and 1318 transitions. [2022-03-20 02:48:26,517 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:26,517 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1318 transitions. [2022-03-20 02:48:26,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-03-20 02:48:26,519 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:48:26,519 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:48:26,519 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-20 02:48:26,519 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:48:26,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:48:26,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1680129217, now seen corresponding path program 1 times [2022-03-20 02:48:26,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:48:26,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053228020] [2022-03-20 02:48:26,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:48:26,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:48:26,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:26,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:48:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:26,657 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 296 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-03-20 02:48:26,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:48:26,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053228020] [2022-03-20 02:48:26,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053228020] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:48:26,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:48:26,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:48:26,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346636491] [2022-03-20 02:48:26,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:48:26,659 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:48:26,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:48:26,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:48:26,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:48:26,659 INFO L87 Difference]: Start difference. First operand 867 states and 1318 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 02:48:28,667 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 02:48:29,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:48:29,211 INFO L93 Difference]: Finished difference Result 1803 states and 2727 transitions. [2022-03-20 02:48:29,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:48:29,212 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 235 [2022-03-20 02:48:29,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:48:29,214 INFO L225 Difference]: With dead ends: 1803 [2022-03-20 02:48:29,214 INFO L226 Difference]: Without dead ends: 964 [2022-03-20 02:48:29,215 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 02:48:29,215 INFO L913 BasicCegarLoop]: 257 mSDtfsCounter, 90 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:48:29,215 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 619 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 586 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:48:29,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2022-03-20 02:48:29,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 867. [2022-03-20 02:48:29,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 862 states have (on average 1.5220417633410672) internal successors, (1312), 862 states have internal predecessors, (1312), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:29,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1316 transitions. [2022-03-20 02:48:29,228 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1316 transitions. Word has length 235 [2022-03-20 02:48:29,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:48:29,228 INFO L478 AbstractCegarLoop]: Abstraction has 867 states and 1316 transitions. [2022-03-20 02:48:29,228 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 02:48:29,228 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1316 transitions. [2022-03-20 02:48:29,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-03-20 02:48:29,230 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:48:29,230 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 02:48:29,230 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-20 02:48:29,230 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:48:29,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:48:29,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1561696403, now seen corresponding path program 1 times [2022-03-20 02:48:29,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:48:29,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813339404] [2022-03-20 02:48:29,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:48:29,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:48:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:29,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:48:29,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:29,338 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 299 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-03-20 02:48:29,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:48:29,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813339404] [2022-03-20 02:48:29,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813339404] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:48:29,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:48:29,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:48:29,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037595140] [2022-03-20 02:48:29,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:48:29,339 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:48:29,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:48:29,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:48:29,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:48:29,340 INFO L87 Difference]: Start difference. First operand 867 states and 1316 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 02:48:31,347 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 02:48:31,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:48:31,862 INFO L93 Difference]: Finished difference Result 2066 states and 3119 transitions. [2022-03-20 02:48:31,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:48:31,862 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 235 [2022-03-20 02:48:31,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:48:31,866 INFO L225 Difference]: With dead ends: 2066 [2022-03-20 02:48:31,866 INFO L226 Difference]: Without dead ends: 1227 [2022-03-20 02:48:31,869 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 02:48:31,870 INFO L913 BasicCegarLoop]: 117 mSDtfsCounter, 125 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:48:31,870 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 335 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:48:31,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2022-03-20 02:48:31,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 942. [2022-03-20 02:48:31,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 937 states have (on average 1.5133404482390609) internal successors, (1418), 937 states have internal predecessors, (1418), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:31,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1422 transitions. [2022-03-20 02:48:31,887 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1422 transitions. Word has length 235 [2022-03-20 02:48:31,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:48:31,887 INFO L478 AbstractCegarLoop]: Abstraction has 942 states and 1422 transitions. [2022-03-20 02:48:31,887 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 02:48:31,887 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1422 transitions. [2022-03-20 02:48:31,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-03-20 02:48:31,889 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:48:31,889 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 02:48:31,889 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-20 02:48:31,889 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:48:31,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:48:31,890 INFO L85 PathProgramCache]: Analyzing trace with hash 121051654, now seen corresponding path program 1 times [2022-03-20 02:48:31,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:48:31,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456093406] [2022-03-20 02:48:31,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:48:31,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:48:31,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:31,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:48:31,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:31,994 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 303 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-03-20 02:48:31,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:48:31,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456093406] [2022-03-20 02:48:31,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456093406] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:48:31,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:48:31,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:48:31,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246980122] [2022-03-20 02:48:31,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:48:31,995 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:48:31,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:48:31,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:48:31,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:48:31,996 INFO L87 Difference]: Start difference. First operand 942 states and 1422 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 02:48:34,011 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 02:48:34,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:48:34,560 INFO L93 Difference]: Finished difference Result 1945 states and 2925 transitions. [2022-03-20 02:48:34,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:48:34,561 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 236 [2022-03-20 02:48:34,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:48:34,563 INFO L225 Difference]: With dead ends: 1945 [2022-03-20 02:48:34,563 INFO L226 Difference]: Without dead ends: 1031 [2022-03-20 02:48:34,565 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 02:48:34,565 INFO L913 BasicCegarLoop]: 252 mSDtfsCounter, 81 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:48:34,565 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 609 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 574 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:48:34,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2022-03-20 02:48:34,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 942. [2022-03-20 02:48:34,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 937 states have (on average 1.511205976520811) internal successors, (1416), 937 states have internal predecessors, (1416), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:34,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1420 transitions. [2022-03-20 02:48:34,579 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1420 transitions. Word has length 236 [2022-03-20 02:48:34,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:48:34,579 INFO L478 AbstractCegarLoop]: Abstraction has 942 states and 1420 transitions. [2022-03-20 02:48:34,579 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 02:48:34,579 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1420 transitions. [2022-03-20 02:48:34,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-03-20 02:48:34,581 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:48:34,581 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:48:34,581 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-20 02:48:34,581 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:48:34,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:48:34,582 INFO L85 PathProgramCache]: Analyzing trace with hash 15544952, now seen corresponding path program 1 times [2022-03-20 02:48:34,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:48:34,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110375542] [2022-03-20 02:48:34,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:48:34,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:48:34,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:34,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:48:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:34,700 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 300 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-03-20 02:48:34,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:48:34,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110375542] [2022-03-20 02:48:34,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110375542] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:48:34,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:48:34,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:48:34,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252426382] [2022-03-20 02:48:34,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:48:34,701 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:48:34,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:48:34,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:48:34,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:48:34,702 INFO L87 Difference]: Start difference. First operand 942 states and 1420 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 02:48:36,710 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 02:48:37,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:48:37,216 INFO L93 Difference]: Finished difference Result 2087 states and 3111 transitions. [2022-03-20 02:48:37,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:48:37,216 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 236 [2022-03-20 02:48:37,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:48:37,220 INFO L225 Difference]: With dead ends: 2087 [2022-03-20 02:48:37,220 INFO L226 Difference]: Without dead ends: 1173 [2022-03-20 02:48:37,221 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 02:48:37,221 INFO L913 BasicCegarLoop]: 112 mSDtfsCounter, 126 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:48:37,222 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 325 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:48:37,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2022-03-20 02:48:37,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 942. [2022-03-20 02:48:37,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 937 states have (on average 1.4994663820704375) internal successors, (1405), 937 states have internal predecessors, (1405), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:37,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1409 transitions. [2022-03-20 02:48:37,240 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1409 transitions. Word has length 236 [2022-03-20 02:48:37,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:48:37,240 INFO L478 AbstractCegarLoop]: Abstraction has 942 states and 1409 transitions. [2022-03-20 02:48:37,240 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:37,240 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1409 transitions. [2022-03-20 02:48:37,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-03-20 02:48:37,242 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:48:37,242 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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 02:48:37,242 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-20 02:48:37,242 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:48:37,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:48:37,243 INFO L85 PathProgramCache]: Analyzing trace with hash 210764843, now seen corresponding path program 1 times [2022-03-20 02:48:37,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:48:37,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210633829] [2022-03-20 02:48:37,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:48:37,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:48:37,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:37,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:48:37,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:37,389 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 315 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-03-20 02:48:37,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:48:37,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210633829] [2022-03-20 02:48:37,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210633829] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:48:37,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:48:37,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:48:37,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702986594] [2022-03-20 02:48:37,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:48:37,390 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:48:37,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:48:37,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:48:37,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:48:37,391 INFO L87 Difference]: Start difference. First operand 942 states and 1409 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:39,400 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 02:48:39,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:48:39,884 INFO L93 Difference]: Finished difference Result 2213 states and 3296 transitions. [2022-03-20 02:48:39,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:48:39,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 238 [2022-03-20 02:48:39,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:48:39,888 INFO L225 Difference]: With dead ends: 2213 [2022-03-20 02:48:39,888 INFO L226 Difference]: Without dead ends: 1299 [2022-03-20 02:48:39,890 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 02:48:39,890 INFO L913 BasicCegarLoop]: 112 mSDtfsCounter, 120 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:48:39,890 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 325 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:48:39,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1299 states. [2022-03-20 02:48:39,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1299 to 1026. [2022-03-20 02:48:39,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1026 states, 1021 states have (on average 1.494613124387855) internal successors, (1526), 1021 states have internal predecessors, (1526), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:39,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1530 transitions. [2022-03-20 02:48:39,911 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1530 transitions. Word has length 238 [2022-03-20 02:48:39,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:48:39,911 INFO L478 AbstractCegarLoop]: Abstraction has 1026 states and 1530 transitions. [2022-03-20 02:48:39,911 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:39,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1530 transitions. [2022-03-20 02:48:39,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-03-20 02:48:39,914 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:48:39,914 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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 02:48:39,914 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-20 02:48:39,914 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:48:39,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:48:39,915 INFO L85 PathProgramCache]: Analyzing trace with hash -994011086, now seen corresponding path program 1 times [2022-03-20 02:48:39,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:48:39,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797730653] [2022-03-20 02:48:39,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:48:39,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:48:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:40,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:48:40,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:40,033 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 319 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-03-20 02:48:40,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:48:40,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797730653] [2022-03-20 02:48:40,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797730653] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:48:40,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:48:40,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:48:40,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115104663] [2022-03-20 02:48:40,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:48:40,034 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:48:40,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:48:40,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:48:40,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:48:40,034 INFO L87 Difference]: Start difference. First operand 1026 states and 1530 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 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 02:48:42,043 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 02:48:42,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:48:42,677 INFO L93 Difference]: Finished difference Result 2087 states and 3101 transitions. [2022-03-20 02:48:42,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:48:42,677 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 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 239 [2022-03-20 02:48:42,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:48:42,681 INFO L225 Difference]: With dead ends: 2087 [2022-03-20 02:48:42,681 INFO L226 Difference]: Without dead ends: 1089 [2022-03-20 02:48:42,682 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 02:48:42,683 INFO L913 BasicCegarLoop]: 242 mSDtfsCounter, 61 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:48:42,686 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 589 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 02:48:42,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2022-03-20 02:48:42,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 1026. [2022-03-20 02:48:42,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1026 states, 1021 states have (on average 1.4926542605288933) internal successors, (1524), 1021 states have internal predecessors, (1524), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:42,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1528 transitions. [2022-03-20 02:48:42,713 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1528 transitions. Word has length 239 [2022-03-20 02:48:42,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:48:42,714 INFO L478 AbstractCegarLoop]: Abstraction has 1026 states and 1528 transitions. [2022-03-20 02:48:42,714 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 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 02:48:42,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1528 transitions. [2022-03-20 02:48:42,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-03-20 02:48:42,717 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:48:42,717 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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 02:48:42,717 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-20 02:48:42,717 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:48:42,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:48:42,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1133369617, now seen corresponding path program 1 times [2022-03-20 02:48:42,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:48:42,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640925267] [2022-03-20 02:48:42,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:48:42,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:48:42,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:42,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:48:42,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:42,877 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-03-20 02:48:42,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:48:42,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640925267] [2022-03-20 02:48:42,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640925267] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:48:42,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:48:42,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:48:42,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671893263] [2022-03-20 02:48:42,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:48:42,878 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:48:42,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:48:42,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:48:42,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:48:42,879 INFO L87 Difference]: Start difference. First operand 1026 states and 1528 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 02:48:44,895 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 02:48:45,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:48:45,455 INFO L93 Difference]: Finished difference Result 2381 states and 3531 transitions. [2022-03-20 02:48:45,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:48:45,456 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 240 [2022-03-20 02:48:45,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:48:45,459 INFO L225 Difference]: With dead ends: 2381 [2022-03-20 02:48:45,459 INFO L226 Difference]: Without dead ends: 1383 [2022-03-20 02:48:45,461 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 02:48:45,461 INFO L913 BasicCegarLoop]: 112 mSDtfsCounter, 118 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:48:45,461 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 325 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:48:45,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2022-03-20 02:48:45,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 1116. [2022-03-20 02:48:45,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1111 states have (on average 1.4887488748874886) internal successors, (1654), 1111 states have internal predecessors, (1654), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:45,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1658 transitions. [2022-03-20 02:48:45,485 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1658 transitions. Word has length 240 [2022-03-20 02:48:45,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:48:45,485 INFO L478 AbstractCegarLoop]: Abstraction has 1116 states and 1658 transitions. [2022-03-20 02:48:45,485 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 02:48:45,485 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1658 transitions. [2022-03-20 02:48:45,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-03-20 02:48:45,487 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:48:45,487 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:48:45,487 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-20 02:48:45,487 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:48:45,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:48:45,487 INFO L85 PathProgramCache]: Analyzing trace with hash -388019534, now seen corresponding path program 1 times [2022-03-20 02:48:45,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:48:45,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420498290] [2022-03-20 02:48:45,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:48:45,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:48:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:45,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:48:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:45,613 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-03-20 02:48:45,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:48:45,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420498290] [2022-03-20 02:48:45,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420498290] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:48:45,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:48:45,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:48:45,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404521257] [2022-03-20 02:48:45,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:48:45,614 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:48:45,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:48:45,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:48:45,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:48:45,614 INFO L87 Difference]: Start difference. First operand 1116 states and 1658 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:47,626 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 02:48:48,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:48:48,035 INFO L93 Difference]: Finished difference Result 2405 states and 3551 transitions. [2022-03-20 02:48:48,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:48:48,035 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 241 [2022-03-20 02:48:48,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:48:48,038 INFO L225 Difference]: With dead ends: 2405 [2022-03-20 02:48:48,038 INFO L226 Difference]: Without dead ends: 1317 [2022-03-20 02:48:48,040 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 02:48:48,045 INFO L913 BasicCegarLoop]: 113 mSDtfsCounter, 137 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:48:48,046 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 327 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 460 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:48:48,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2022-03-20 02:48:48,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 1116. [2022-03-20 02:48:48,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1111 states have (on average 1.4707470747074707) internal successors, (1634), 1111 states have internal predecessors, (1634), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:48,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1638 transitions. [2022-03-20 02:48:48,072 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1638 transitions. Word has length 241 [2022-03-20 02:48:48,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:48:48,072 INFO L478 AbstractCegarLoop]: Abstraction has 1116 states and 1638 transitions. [2022-03-20 02:48:48,072 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:48,072 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1638 transitions. [2022-03-20 02:48:48,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-03-20 02:48:48,074 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:48:48,074 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, 4, 4, 4, 4, 4, 4, 4, 4, 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 02:48:48,075 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-20 02:48:48,075 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:48:48,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:48:48,075 INFO L85 PathProgramCache]: Analyzing trace with hash -2003249160, now seen corresponding path program 1 times [2022-03-20 02:48:48,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:48:48,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577530268] [2022-03-20 02:48:48,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:48:48,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:48:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:48,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:48:48,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:48,234 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-03-20 02:48:48,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:48:48,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577530268] [2022-03-20 02:48:48,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577530268] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:48:48,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:48:48,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:48:48,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862153667] [2022-03-20 02:48:48,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:48:48,236 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:48:48,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:48:48,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:48:48,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:48:48,238 INFO L87 Difference]: Start difference. First operand 1116 states and 1638 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 02:48:50,247 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 02:48:50,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:48:50,705 INFO L93 Difference]: Finished difference Result 2405 states and 3511 transitions. [2022-03-20 02:48:50,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:48:50,705 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 241 [2022-03-20 02:48:50,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:48:50,708 INFO L225 Difference]: With dead ends: 2405 [2022-03-20 02:48:50,708 INFO L226 Difference]: Without dead ends: 1317 [2022-03-20 02:48:50,710 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 02:48:50,711 INFO L913 BasicCegarLoop]: 113 mSDtfsCounter, 116 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:48:50,711 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 327 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 460 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:48:50,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2022-03-20 02:48:50,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 1116. [2022-03-20 02:48:50,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1111 states have (on average 1.4635463546354635) internal successors, (1626), 1111 states have internal predecessors, (1626), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:50,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1630 transitions. [2022-03-20 02:48:50,728 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1630 transitions. Word has length 241 [2022-03-20 02:48:50,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:48:50,728 INFO L478 AbstractCegarLoop]: Abstraction has 1116 states and 1630 transitions. [2022-03-20 02:48:50,728 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 02:48:50,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1630 transitions. [2022-03-20 02:48:50,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-03-20 02:48:50,730 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:48:50,731 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 02:48:50,731 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-20 02:48:50,731 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:48:50,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:48:50,731 INFO L85 PathProgramCache]: Analyzing trace with hash 730759416, now seen corresponding path program 1 times [2022-03-20 02:48:50,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:48:50,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580205525] [2022-03-20 02:48:50,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:48:50,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:48:50,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:50,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:48:50,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:50,840 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-03-20 02:48:50,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:48:50,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580205525] [2022-03-20 02:48:50,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580205525] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:48:50,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:48:50,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:48:50,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583343086] [2022-03-20 02:48:50,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:48:50,841 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:48:50,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:48:50,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:48:50,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:48:50,842 INFO L87 Difference]: Start difference. First operand 1116 states and 1630 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 02:48:52,852 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 02:48:53,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:48:53,321 INFO L93 Difference]: Finished difference Result 2243 states and 3273 transitions. [2022-03-20 02:48:53,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:48:53,322 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 241 [2022-03-20 02:48:53,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:48:53,338 INFO L225 Difference]: With dead ends: 2243 [2022-03-20 02:48:53,338 INFO L226 Difference]: Without dead ends: 1155 [2022-03-20 02:48:53,340 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 02:48:53,340 INFO L913 BasicCegarLoop]: 232 mSDtfsCounter, 53 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:48:53,340 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 569 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:48:53,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2022-03-20 02:48:53,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 1116. [2022-03-20 02:48:53,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1111 states have (on average 1.4617461746174618) internal successors, (1624), 1111 states have internal predecessors, (1624), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:53,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1628 transitions. [2022-03-20 02:48:53,361 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1628 transitions. Word has length 241 [2022-03-20 02:48:53,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:48:53,362 INFO L478 AbstractCegarLoop]: Abstraction has 1116 states and 1628 transitions. [2022-03-20 02:48:53,362 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 02:48:53,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1628 transitions. [2022-03-20 02:48:53,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-03-20 02:48:53,364 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:48:53,364 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 02:48:53,364 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-20 02:48:53,364 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:48:53,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:48:53,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1829842993, now seen corresponding path program 1 times [2022-03-20 02:48:53,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:48:53,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141807528] [2022-03-20 02:48:53,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:48:53,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:48:53,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:53,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:48:53,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:53,483 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 311 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-03-20 02:48:53,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:48:53,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141807528] [2022-03-20 02:48:53,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141807528] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:48:53,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:48:53,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:48:53,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98643013] [2022-03-20 02:48:53,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:48:53,484 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:48:53,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:48:53,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:48:53,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:48:53,484 INFO L87 Difference]: Start difference. First operand 1116 states and 1628 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 02:48:55,497 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 02:48:55,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:48:55,878 INFO L93 Difference]: Finished difference Result 2239 states and 3263 transitions. [2022-03-20 02:48:55,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:48:55,878 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 242 [2022-03-20 02:48:55,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:48:55,882 INFO L225 Difference]: With dead ends: 2239 [2022-03-20 02:48:55,882 INFO L226 Difference]: Without dead ends: 1151 [2022-03-20 02:48:55,883 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 02:48:55,883 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 50 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:48:55,884 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 567 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:48:55,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2022-03-20 02:48:55,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 1116. [2022-03-20 02:48:55,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1111 states have (on average 1.45994599459946) internal successors, (1622), 1111 states have internal predecessors, (1622), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:55,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1626 transitions. [2022-03-20 02:48:55,926 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1626 transitions. Word has length 242 [2022-03-20 02:48:55,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:48:55,926 INFO L478 AbstractCegarLoop]: Abstraction has 1116 states and 1626 transitions. [2022-03-20 02:48:55,926 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 02:48:55,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1626 transitions. [2022-03-20 02:48:55,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-03-20 02:48:55,928 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:48:55,928 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, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 02:48:55,928 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-20 02:48:55,928 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:48:55,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:48:55,928 INFO L85 PathProgramCache]: Analyzing trace with hash -235327250, now seen corresponding path program 1 times [2022-03-20 02:48:55,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:48:55,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600404904] [2022-03-20 02:48:55,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:48:55,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:48:55,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:56,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:48:56,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:56,043 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-03-20 02:48:56,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:48:56,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600404904] [2022-03-20 02:48:56,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600404904] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:48:56,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:48:56,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:48:56,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435537009] [2022-03-20 02:48:56,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:48:56,044 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:48:56,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:48:56,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:48:56,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:48:56,045 INFO L87 Difference]: Start difference. First operand 1116 states and 1626 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 02:48:58,052 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 02:48:58,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:48:58,594 INFO L93 Difference]: Finished difference Result 2531 states and 3685 transitions. [2022-03-20 02:48:58,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:48:58,595 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 244 [2022-03-20 02:48:58,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:48:58,597 INFO L225 Difference]: With dead ends: 2531 [2022-03-20 02:48:58,597 INFO L226 Difference]: Without dead ends: 1443 [2022-03-20 02:48:58,598 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 02:48:58,598 INFO L913 BasicCegarLoop]: 113 mSDtfsCounter, 113 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:48:58,598 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 327 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 461 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:48:58,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2022-03-20 02:48:58,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1215. [2022-03-20 02:48:58,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1215 states, 1210 states have (on average 1.4578512396694214) internal successors, (1764), 1210 states have internal predecessors, (1764), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:48:58,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 1768 transitions. [2022-03-20 02:48:58,619 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 1768 transitions. Word has length 244 [2022-03-20 02:48:58,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:48:58,619 INFO L478 AbstractCegarLoop]: Abstraction has 1215 states and 1768 transitions. [2022-03-20 02:48:58,620 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 02:48:58,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 1768 transitions. [2022-03-20 02:48:58,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-03-20 02:48:58,622 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:48:58,622 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, 4, 4, 4, 4, 4, 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] [2022-03-20 02:48:58,622 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-20 02:48:58,622 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:48:58,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:48:58,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1378083600, now seen corresponding path program 1 times [2022-03-20 02:48:58,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:48:58,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975311240] [2022-03-20 02:48:58,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:48:58,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:48:58,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:58,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:48:58,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:48:58,804 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 339 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-03-20 02:48:58,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:48:58,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975311240] [2022-03-20 02:48:58,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975311240] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:48:58,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:48:58,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:48:58,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403896763] [2022-03-20 02:48:58,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:48:58,805 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:48:58,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:48:58,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:48:58,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:48:58,806 INFO L87 Difference]: Start difference. First operand 1215 states and 1768 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 02:49:00,814 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 02:49:01,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:49:01,299 INFO L93 Difference]: Finished difference Result 2603 states and 3771 transitions. [2022-03-20 02:49:01,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:49:01,299 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 245 [2022-03-20 02:49:01,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:49:01,302 INFO L225 Difference]: With dead ends: 2603 [2022-03-20 02:49:01,302 INFO L226 Difference]: Without dead ends: 1416 [2022-03-20 02:49:01,304 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 02:49:01,304 INFO L913 BasicCegarLoop]: 113 mSDtfsCounter, 112 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:49:01,304 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 327 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 460 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:49:01,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2022-03-20 02:49:01,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1215. [2022-03-20 02:49:01,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1215 states, 1210 states have (on average 1.4537190082644629) internal successors, (1759), 1210 states have internal predecessors, (1759), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:01,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 1763 transitions. [2022-03-20 02:49:01,338 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 1763 transitions. Word has length 245 [2022-03-20 02:49:01,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:49:01,338 INFO L478 AbstractCegarLoop]: Abstraction has 1215 states and 1763 transitions. [2022-03-20 02:49:01,339 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 02:49:01,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 1763 transitions. [2022-03-20 02:49:01,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-03-20 02:49:01,341 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:49:01,341 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, 4, 4, 4, 4, 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 02:49:01,341 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-20 02:49:01,341 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:49:01,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:49:01,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1584282978, now seen corresponding path program 1 times [2022-03-20 02:49:01,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:49:01,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315878399] [2022-03-20 02:49:01,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:49:01,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:49:01,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:01,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:49:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:01,501 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 343 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-03-20 02:49:01,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:49:01,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315878399] [2022-03-20 02:49:01,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315878399] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:49:01,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:49:01,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:49:01,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076713591] [2022-03-20 02:49:01,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:49:01,502 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:49:01,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:49:01,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:49:01,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:49:01,503 INFO L87 Difference]: Start difference. First operand 1215 states and 1763 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 02:49:03,512 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 02:49:03,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:49:03,947 INFO L93 Difference]: Finished difference Result 2729 states and 3950 transitions. [2022-03-20 02:49:03,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:49:03,948 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 245 [2022-03-20 02:49:03,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:49:03,951 INFO L225 Difference]: With dead ends: 2729 [2022-03-20 02:49:03,951 INFO L226 Difference]: Without dead ends: 1542 [2022-03-20 02:49:03,953 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 02:49:03,954 INFO L913 BasicCegarLoop]: 113 mSDtfsCounter, 110 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:49:03,955 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 327 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 461 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:49:03,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1542 states. [2022-03-20 02:49:03,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1542 to 1320. [2022-03-20 02:49:03,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1315 states have (on average 1.4479087452471482) internal successors, (1904), 1315 states have internal predecessors, (1904), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:03,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 1908 transitions. [2022-03-20 02:49:03,995 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 1908 transitions. Word has length 245 [2022-03-20 02:49:03,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:49:03,995 INFO L478 AbstractCegarLoop]: Abstraction has 1320 states and 1908 transitions. [2022-03-20 02:49:03,995 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 02:49:03,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 1908 transitions. [2022-03-20 02:49:03,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-03-20 02:49:03,997 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:49:03,997 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, 4, 4, 4, 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 02:49:03,997 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-20 02:49:03,997 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:49:04,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:49:04,001 INFO L85 PathProgramCache]: Analyzing trace with hash -632741856, now seen corresponding path program 1 times [2022-03-20 02:49:04,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:49:04,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806166409] [2022-03-20 02:49:04,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:49:04,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:49:04,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:04,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:49:04,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:04,164 INFO L134 CoverageAnalysis]: Checked inductivity of 490 backedges. 347 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-03-20 02:49:04,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:49:04,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806166409] [2022-03-20 02:49:04,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806166409] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:49:04,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:49:04,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:49:04,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82143244] [2022-03-20 02:49:04,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:49:04,166 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:49:04,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:49:04,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:49:04,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:49:04,167 INFO L87 Difference]: Start difference. First operand 1320 states and 1908 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:06,178 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 02:49:06,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:49:06,603 INFO L93 Difference]: Finished difference Result 2635 states and 3809 transitions. [2022-03-20 02:49:06,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:49:06,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 246 [2022-03-20 02:49:06,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:49:06,605 INFO L225 Difference]: With dead ends: 2635 [2022-03-20 02:49:06,606 INFO L226 Difference]: Without dead ends: 1343 [2022-03-20 02:49:06,608 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 02:49:06,609 INFO L913 BasicCegarLoop]: 223 mSDtfsCounter, 33 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:49:06,609 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 551 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 454 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:49:06,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2022-03-20 02:49:06,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 1320. [2022-03-20 02:49:06,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1315 states have (on average 1.4463878326996198) internal successors, (1902), 1315 states have internal predecessors, (1902), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:06,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 1906 transitions. [2022-03-20 02:49:06,639 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 1906 transitions. Word has length 246 [2022-03-20 02:49:06,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:49:06,639 INFO L478 AbstractCegarLoop]: Abstraction has 1320 states and 1906 transitions. [2022-03-20 02:49:06,639 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:06,639 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 1906 transitions. [2022-03-20 02:49:06,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-03-20 02:49:06,641 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:49:06,641 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, 4, 4, 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 02:49:06,642 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-20 02:49:06,642 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:49:06,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:49:06,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1776040071, now seen corresponding path program 1 times [2022-03-20 02:49:06,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:49:06,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302410275] [2022-03-20 02:49:06,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:49:06,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:49:06,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:06,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:49:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:06,804 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 351 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-03-20 02:49:06,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:49:06,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302410275] [2022-03-20 02:49:06,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302410275] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:49:06,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:49:06,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:49:06,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551949851] [2022-03-20 02:49:06,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:49:06,805 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:49:06,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:49:06,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:49:06,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:49:06,805 INFO L87 Difference]: Start difference. First operand 1320 states and 1906 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:08,814 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 02:49:09,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:49:09,317 INFO L93 Difference]: Finished difference Result 2635 states and 3805 transitions. [2022-03-20 02:49:09,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:49:09,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 247 [2022-03-20 02:49:09,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:49:09,320 INFO L225 Difference]: With dead ends: 2635 [2022-03-20 02:49:09,320 INFO L226 Difference]: Without dead ends: 1343 [2022-03-20 02:49:09,322 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 02:49:09,322 INFO L913 BasicCegarLoop]: 222 mSDtfsCounter, 31 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:49:09,322 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 549 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:49:09,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2022-03-20 02:49:09,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 1320. [2022-03-20 02:49:09,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1315 states have (on average 1.4448669201520912) internal successors, (1900), 1315 states have internal predecessors, (1900), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:09,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 1904 transitions. [2022-03-20 02:49:09,354 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 1904 transitions. Word has length 247 [2022-03-20 02:49:09,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:49:09,354 INFO L478 AbstractCegarLoop]: Abstraction has 1320 states and 1904 transitions. [2022-03-20 02:49:09,354 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:09,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 1904 transitions. [2022-03-20 02:49:09,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-03-20 02:49:09,357 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:49:09,357 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, 4, 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 02:49:09,357 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-20 02:49:09,357 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:49:09,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:49:09,358 INFO L85 PathProgramCache]: Analyzing trace with hash 825799781, now seen corresponding path program 1 times [2022-03-20 02:49:09,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:49:09,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965849250] [2022-03-20 02:49:09,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:49:09,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:49:09,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:09,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:49:09,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:09,506 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 355 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-03-20 02:49:09,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:49:09,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965849250] [2022-03-20 02:49:09,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965849250] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:49:09,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:49:09,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:49:09,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475084120] [2022-03-20 02:49:09,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:49:09,507 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:49:09,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:49:09,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:49:09,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:49:09,507 INFO L87 Difference]: Start difference. First operand 1320 states and 1904 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:11,078 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 02:49:13,102 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:49:15,438 WARN L534 Checker$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 02:49:15,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:49:15,910 INFO L93 Difference]: Finished difference Result 2813 states and 4043 transitions. [2022-03-20 02:49:15,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:49:15,911 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 248 [2022-03-20 02:49:15,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:49:15,913 INFO L225 Difference]: With dead ends: 2813 [2022-03-20 02:49:15,913 INFO L226 Difference]: Without dead ends: 1521 [2022-03-20 02:49:15,915 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 02:49:15,915 INFO L913 BasicCegarLoop]: 114 mSDtfsCounter, 107 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:49:15,915 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 329 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 463 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-03-20 02:49:15,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2022-03-20 02:49:15,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1320. [2022-03-20 02:49:15,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1315 states have (on average 1.44106463878327) internal successors, (1895), 1315 states have internal predecessors, (1895), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:15,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 1899 transitions. [2022-03-20 02:49:15,969 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 1899 transitions. Word has length 248 [2022-03-20 02:49:15,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:49:15,969 INFO L478 AbstractCegarLoop]: Abstraction has 1320 states and 1899 transitions. [2022-03-20 02:49:15,969 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:15,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 1899 transitions. [2022-03-20 02:49:15,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-03-20 02:49:15,971 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:49:15,971 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:49:15,971 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-20 02:49:15,971 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:49:15,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:49:15,971 INFO L85 PathProgramCache]: Analyzing trace with hash 236315822, now seen corresponding path program 1 times [2022-03-20 02:49:15,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:49:15,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905893480] [2022-03-20 02:49:15,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:49:15,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:49:16,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:16,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:49:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:16,090 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 343 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-03-20 02:49:16,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:49:16,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905893480] [2022-03-20 02:49:16,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905893480] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:49:16,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:49:16,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:49:16,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418320339] [2022-03-20 02:49:16,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:49:16,091 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:49:16,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:49:16,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:49:16,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:49:16,091 INFO L87 Difference]: Start difference. First operand 1320 states and 1899 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 02:49:18,104 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 02:49:18,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:49:18,531 INFO L93 Difference]: Finished difference Result 2631 states and 3787 transitions. [2022-03-20 02:49:18,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:49:18,532 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 252 [2022-03-20 02:49:18,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:49:18,534 INFO L225 Difference]: With dead ends: 2631 [2022-03-20 02:49:18,534 INFO L226 Difference]: Without dead ends: 1339 [2022-03-20 02:49:18,535 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 02:49:18,536 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 46 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:49:18,536 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 543 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 446 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:49:18,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2022-03-20 02:49:18,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 1320. [2022-03-20 02:49:18,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1315 states have (on average 1.4395437262357413) internal successors, (1893), 1315 states have internal predecessors, (1893), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:18,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 1897 transitions. [2022-03-20 02:49:18,557 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 1897 transitions. Word has length 252 [2022-03-20 02:49:18,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:49:18,557 INFO L478 AbstractCegarLoop]: Abstraction has 1320 states and 1897 transitions. [2022-03-20 02:49:18,557 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 02:49:18,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 1897 transitions. [2022-03-20 02:49:18,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-03-20 02:49:18,559 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:49:18,559 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:49:18,559 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-20 02:49:18,559 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:49:18,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:49:18,559 INFO L85 PathProgramCache]: Analyzing trace with hash -831007440, now seen corresponding path program 1 times [2022-03-20 02:49:18,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:49:18,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873987914] [2022-03-20 02:49:18,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:49:18,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:49:18,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:18,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:49:18,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:18,698 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 349 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-03-20 02:49:18,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:49:18,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873987914] [2022-03-20 02:49:18,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873987914] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:49:18,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:49:18,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:49:18,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135651307] [2022-03-20 02:49:18,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:49:18,699 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:49:18,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:49:18,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:49:18,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:49:18,699 INFO L87 Difference]: Start difference. First operand 1320 states and 1897 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:20,709 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 02:49:21,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:49:21,195 INFO L93 Difference]: Finished difference Result 2939 states and 4212 transitions. [2022-03-20 02:49:21,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:49:21,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 253 [2022-03-20 02:49:21,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:49:21,198 INFO L225 Difference]: With dead ends: 2939 [2022-03-20 02:49:21,198 INFO L226 Difference]: Without dead ends: 1647 [2022-03-20 02:49:21,200 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 02:49:21,205 INFO L913 BasicCegarLoop]: 114 mSDtfsCounter, 124 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:49:21,205 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 329 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:49:21,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2022-03-20 02:49:21,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1380. [2022-03-20 02:49:21,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1375 states have (on average 1.4181818181818182) internal successors, (1950), 1375 states have internal predecessors, (1950), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:21,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 1954 transitions. [2022-03-20 02:49:21,237 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 1954 transitions. Word has length 253 [2022-03-20 02:49:21,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:49:21,237 INFO L478 AbstractCegarLoop]: Abstraction has 1380 states and 1954 transitions. [2022-03-20 02:49:21,237 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:21,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 1954 transitions. [2022-03-20 02:49:21,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-03-20 02:49:21,240 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:49:21,240 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 02:49:21,240 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-20 02:49:21,240 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:49:21,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:49:21,241 INFO L85 PathProgramCache]: Analyzing trace with hash -219908919, now seen corresponding path program 1 times [2022-03-20 02:49:21,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:49:21,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759877317] [2022-03-20 02:49:21,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:49:21,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:49:21,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:21,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:49:21,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:21,365 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 355 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-03-20 02:49:21,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:49:21,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759877317] [2022-03-20 02:49:21,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759877317] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:49:21,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:49:21,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:49:21,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963767505] [2022-03-20 02:49:21,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:49:21,365 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:49:21,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:49:21,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:49:21,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:49:21,366 INFO L87 Difference]: Start difference. First operand 1380 states and 1954 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:23,373 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 02:49:23,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:49:23,765 INFO L93 Difference]: Finished difference Result 2744 states and 3889 transitions. [2022-03-20 02:49:23,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:49:23,766 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 254 [2022-03-20 02:49:23,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:49:23,780 INFO L225 Difference]: With dead ends: 2744 [2022-03-20 02:49:23,780 INFO L226 Difference]: Without dead ends: 1392 [2022-03-20 02:49:23,782 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 02:49:23,782 INFO L913 BasicCegarLoop]: 215 mSDtfsCounter, 40 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:49:23,783 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 535 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 435 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:49:23,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2022-03-20 02:49:23,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1380. [2022-03-20 02:49:23,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1375 states have (on average 1.4167272727272728) internal successors, (1948), 1375 states have internal predecessors, (1948), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:23,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 1952 transitions. [2022-03-20 02:49:23,823 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 1952 transitions. Word has length 254 [2022-03-20 02:49:23,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:49:23,826 INFO L478 AbstractCegarLoop]: Abstraction has 1380 states and 1952 transitions. [2022-03-20 02:49:23,826 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:23,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 1952 transitions. [2022-03-20 02:49:23,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-03-20 02:49:23,828 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:49:23,828 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:49:23,828 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-20 02:49:23,829 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:49:23,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:49:23,829 INFO L85 PathProgramCache]: Analyzing trace with hash 207409088, now seen corresponding path program 1 times [2022-03-20 02:49:23,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:49:23,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263762411] [2022-03-20 02:49:23,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:49:23,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:49:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:24,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:49:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:24,116 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-03-20 02:49:24,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:49:24,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263762411] [2022-03-20 02:49:24,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263762411] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:49:24,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:49:24,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:49:24,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081731581] [2022-03-20 02:49:24,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:49:24,117 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:49:24,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:49:24,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:49:24,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:49:24,118 INFO L87 Difference]: Start difference. First operand 1380 states and 1952 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:26,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:49:26,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:49:26,762 INFO L93 Difference]: Finished difference Result 2979 states and 4211 transitions. [2022-03-20 02:49:26,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:49:26,762 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 257 [2022-03-20 02:49:26,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:49:26,777 INFO L225 Difference]: With dead ends: 2979 [2022-03-20 02:49:26,777 INFO L226 Difference]: Without dead ends: 1627 [2022-03-20 02:49:26,779 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 02:49:26,779 INFO L913 BasicCegarLoop]: 250 mSDtfsCounter, 56 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:49:26,779 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 606 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 574 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 02:49:26,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2022-03-20 02:49:26,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1505. [2022-03-20 02:49:26,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1500 states have (on average 1.416) internal successors, (2124), 1500 states have internal predecessors, (2124), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:26,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 2128 transitions. [2022-03-20 02:49:26,805 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 2128 transitions. Word has length 257 [2022-03-20 02:49:26,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:49:26,805 INFO L478 AbstractCegarLoop]: Abstraction has 1505 states and 2128 transitions. [2022-03-20 02:49:26,805 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:26,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 2128 transitions. [2022-03-20 02:49:26,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-03-20 02:49:26,807 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:49:26,807 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:49:26,807 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-20 02:49:26,807 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:49:26,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:49:26,808 INFO L85 PathProgramCache]: Analyzing trace with hash 2083891906, now seen corresponding path program 1 times [2022-03-20 02:49:26,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:49:26,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367260472] [2022-03-20 02:49:26,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:49:26,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:49:26,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:26,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:49:26,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:26,976 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-03-20 02:49:26,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:49:26,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367260472] [2022-03-20 02:49:26,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367260472] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:49:26,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:49:26,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:49:26,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118934036] [2022-03-20 02:49:26,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:49:26,977 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:49:26,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:49:26,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:49:26,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:49:26,977 INFO L87 Difference]: Start difference. First operand 1505 states and 2128 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:28,985 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 02:49:29,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:49:29,363 INFO L93 Difference]: Finished difference Result 3477 states and 4928 transitions. [2022-03-20 02:49:29,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:49:29,363 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have 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 02:49:29,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:49:29,367 INFO L225 Difference]: With dead ends: 3477 [2022-03-20 02:49:29,367 INFO L226 Difference]: Without dead ends: 2000 [2022-03-20 02:49:29,369 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 02:49:29,369 INFO L913 BasicCegarLoop]: 376 mSDtfsCounter, 128 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:49:29,370 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 571 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 398 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 02:49:29,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2000 states. [2022-03-20 02:49:29,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2000 to 2000. [2022-03-20 02:49:29,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2000 states, 1995 states have (on average 1.4150375939849624) internal successors, (2823), 1995 states have internal predecessors, (2823), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:29,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2000 states to 2000 states and 2827 transitions. [2022-03-20 02:49:29,409 INFO L78 Accepts]: Start accepts. Automaton has 2000 states and 2827 transitions. Word has length 257 [2022-03-20 02:49:29,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:49:29,410 INFO L478 AbstractCegarLoop]: Abstraction has 2000 states and 2827 transitions. [2022-03-20 02:49:29,410 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:29,410 INFO L276 IsEmpty]: Start isEmpty. Operand 2000 states and 2827 transitions. [2022-03-20 02:49:29,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-03-20 02:49:29,412 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:49:29,413 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:49:29,413 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-20 02:49:29,413 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:49:29,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:49:29,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1703999688, now seen corresponding path program 1 times [2022-03-20 02:49:29,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:49:29,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316659045] [2022-03-20 02:49:29,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:49:29,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:49:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:29,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:49:29,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:29,780 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 624 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-03-20 02:49:29,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:49:29,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316659045] [2022-03-20 02:49:29,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316659045] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:49:29,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:49:29,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-20 02:49:29,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323913572] [2022-03-20 02:49:29,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:49:29,781 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-20 02:49:29,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:49:29,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-20 02:49:29,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-20 02:49:29,782 INFO L87 Difference]: Start difference. First operand 2000 states and 2827 transitions. Second operand has 8 states, 8 states have (on average 20.625) internal successors, (165), 7 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:31,790 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 02:49:33,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:49:33,166 INFO L93 Difference]: Finished difference Result 5774 states and 8205 transitions. [2022-03-20 02:49:33,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-20 02:49:33,166 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.625) internal successors, (165), 7 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 330 [2022-03-20 02:49:33,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:49:33,172 INFO L225 Difference]: With dead ends: 5774 [2022-03-20 02:49:33,173 INFO L226 Difference]: Without dead ends: 3802 [2022-03-20 02:49:33,177 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-03-20 02:49:33,177 INFO L913 BasicCegarLoop]: 325 mSDtfsCounter, 258 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 1346 mSolverCounterSat, 69 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 1169 SdHoareTripleChecker+Invalid, 1416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1346 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:49:33,177 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 1169 Invalid, 1416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1346 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 02:49:33,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3802 states. [2022-03-20 02:49:33,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3802 to 3563. [2022-03-20 02:49:33,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3563 states, 3558 states have (on average 1.430860033726813) internal successors, (5091), 3558 states have internal predecessors, (5091), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:33,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3563 states to 3563 states and 5095 transitions. [2022-03-20 02:49:33,258 INFO L78 Accepts]: Start accepts. Automaton has 3563 states and 5095 transitions. Word has length 330 [2022-03-20 02:49:33,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:49:33,259 INFO L478 AbstractCegarLoop]: Abstraction has 3563 states and 5095 transitions. [2022-03-20 02:49:33,259 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.625) internal successors, (165), 7 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:33,259 INFO L276 IsEmpty]: Start isEmpty. Operand 3563 states and 5095 transitions. [2022-03-20 02:49:33,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-03-20 02:49:33,266 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:49:33,266 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:49:33,266 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-20 02:49:33,266 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:49:33,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:49:33,267 INFO L85 PathProgramCache]: Analyzing trace with hash 866125370, now seen corresponding path program 1 times [2022-03-20 02:49:33,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:49:33,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255899395] [2022-03-20 02:49:33,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:49:33,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:49:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:33,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:49:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:33,613 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 624 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-03-20 02:49:33,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:49:33,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255899395] [2022-03-20 02:49:33,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255899395] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:49:33,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:49:33,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-20 02:49:33,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431285996] [2022-03-20 02:49:33,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:49:33,614 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-20 02:49:33,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:49:33,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-20 02:49:33,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-20 02:49:33,615 INFO L87 Difference]: Start difference. First operand 3563 states and 5095 transitions. Second operand has 8 states, 8 states have (on average 20.625) internal successors, (165), 7 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:35,624 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 02:49:37,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:49:37,437 INFO L93 Difference]: Finished difference Result 9693 states and 13729 transitions. [2022-03-20 02:49:37,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-20 02:49:37,437 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.625) internal successors, (165), 7 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 330 [2022-03-20 02:49:37,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:49:37,444 INFO L225 Difference]: With dead ends: 9693 [2022-03-20 02:49:37,444 INFO L226 Difference]: Without dead ends: 6158 [2022-03-20 02:49:37,448 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-03-20 02:49:37,449 INFO L913 BasicCegarLoop]: 333 mSDtfsCounter, 391 mSDsluCounter, 956 mSDsCounter, 0 mSdLazyCounter, 1683 mSolverCounterSat, 73 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 1289 SdHoareTripleChecker+Invalid, 1757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1683 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:49:37,449 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [391 Valid, 1289 Invalid, 1757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1683 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-03-20 02:49:37,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6158 states. [2022-03-20 02:49:37,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6158 to 3807. [2022-03-20 02:49:37,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3807 states, 3802 states have (on average 1.426880589163598) internal successors, (5425), 3802 states have internal predecessors, (5425), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:37,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3807 states to 3807 states and 5429 transitions. [2022-03-20 02:49:37,542 INFO L78 Accepts]: Start accepts. Automaton has 3807 states and 5429 transitions. Word has length 330 [2022-03-20 02:49:37,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:49:37,543 INFO L478 AbstractCegarLoop]: Abstraction has 3807 states and 5429 transitions. [2022-03-20 02:49:37,543 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.625) internal successors, (165), 7 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:37,544 INFO L276 IsEmpty]: Start isEmpty. Operand 3807 states and 5429 transitions. [2022-03-20 02:49:37,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-03-20 02:49:37,549 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:49:37,549 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:49:37,549 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-20 02:49:37,549 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:49:37,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:49:37,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1650885240, now seen corresponding path program 1 times [2022-03-20 02:49:37,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:49:37,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154744158] [2022-03-20 02:49:37,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:49:37,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:49:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:37,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:49:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:37,702 INFO L134 CoverageAnalysis]: Checked inductivity of 923 backedges. 630 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2022-03-20 02:49:37,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:49:37,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154744158] [2022-03-20 02:49:37,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154744158] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:49:37,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:49:37,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:49:37,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781273191] [2022-03-20 02:49:37,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:49:37,703 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:49:37,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:49:37,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:49:37,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:49:37,703 INFO L87 Difference]: Start difference. First operand 3807 states and 5429 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:39,711 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 02:49:40,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:49:40,347 INFO L93 Difference]: Finished difference Result 7860 states and 11185 transitions. [2022-03-20 02:49:40,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:49:40,348 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 331 [2022-03-20 02:49:40,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:49:40,353 INFO L225 Difference]: With dead ends: 7860 [2022-03-20 02:49:40,353 INFO L226 Difference]: Without dead ends: 4073 [2022-03-20 02:49:40,357 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 02:49:40,357 INFO L913 BasicCegarLoop]: 248 mSDtfsCounter, 54 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:49:40,357 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 602 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 568 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 02:49:40,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4073 states. [2022-03-20 02:49:40,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4073 to 3803. [2022-03-20 02:49:40,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3803 states, 3798 states have (on average 1.4252238020010533) internal successors, (5413), 3798 states have internal predecessors, (5413), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:40,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3803 states to 3803 states and 5417 transitions. [2022-03-20 02:49:40,453 INFO L78 Accepts]: Start accepts. Automaton has 3803 states and 5417 transitions. Word has length 331 [2022-03-20 02:49:40,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:49:40,454 INFO L478 AbstractCegarLoop]: Abstraction has 3803 states and 5417 transitions. [2022-03-20 02:49:40,454 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 4 states have internal predecessors, (168), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:40,454 INFO L276 IsEmpty]: Start isEmpty. Operand 3803 states and 5417 transitions. [2022-03-20 02:49:40,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-03-20 02:49:40,460 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:49:40,460 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:49:40,460 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-20 02:49:40,460 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:49:40,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:49:40,461 INFO L85 PathProgramCache]: Analyzing trace with hash 2063328116, now seen corresponding path program 1 times [2022-03-20 02:49:40,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:49:40,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143430824] [2022-03-20 02:49:40,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:49:40,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:49:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:40,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:49:40,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:40,774 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 629 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-03-20 02:49:40,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:49:40,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143430824] [2022-03-20 02:49:40,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143430824] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:49:40,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:49:40,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-20 02:49:40,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285397721] [2022-03-20 02:49:40,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:49:40,775 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-20 02:49:40,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:49:40,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-20 02:49:40,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-03-20 02:49:40,776 INFO L87 Difference]: Start difference. First operand 3803 states and 5417 transitions. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 7 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:42,784 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 02:49:43,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:49:43,853 INFO L93 Difference]: Finished difference Result 8348 states and 11856 transitions. [2022-03-20 02:49:43,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-20 02:49:43,853 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 7 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 331 [2022-03-20 02:49:43,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:49:43,860 INFO L225 Difference]: With dead ends: 8348 [2022-03-20 02:49:43,860 INFO L226 Difference]: Without dead ends: 4549 [2022-03-20 02:49:43,864 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-03-20 02:49:43,865 INFO L913 BasicCegarLoop]: 278 mSDtfsCounter, 307 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 57 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 1107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-20 02:49:43,865 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [307 Valid, 892 Invalid, 1107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1049 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2022-03-20 02:49:43,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4549 states. [2022-03-20 02:49:43,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4549 to 3865. [2022-03-20 02:49:43,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3865 states, 3860 states have (on average 1.4246113989637306) internal successors, (5499), 3860 states have internal predecessors, (5499), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:44,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3865 states to 3865 states and 5503 transitions. [2022-03-20 02:49:44,000 INFO L78 Accepts]: Start accepts. Automaton has 3865 states and 5503 transitions. Word has length 331 [2022-03-20 02:49:44,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:49:44,000 INFO L478 AbstractCegarLoop]: Abstraction has 3865 states and 5503 transitions. [2022-03-20 02:49:44,001 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 7 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:44,001 INFO L276 IsEmpty]: Start isEmpty. Operand 3865 states and 5503 transitions. [2022-03-20 02:49:44,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2022-03-20 02:49:44,007 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:49:44,008 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:49:44,008 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-20 02:49:44,008 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:49:44,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:49:44,008 INFO L85 PathProgramCache]: Analyzing trace with hash -107775338, now seen corresponding path program 1 times [2022-03-20 02:49:44,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:49:44,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793665451] [2022-03-20 02:49:44,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:49:44,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:49:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:44,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:49:44,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:44,217 INFO L134 CoverageAnalysis]: Checked inductivity of 989 backedges. 664 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-03-20 02:49:44,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:49:44,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793665451] [2022-03-20 02:49:44,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793665451] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:49:44,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:49:44,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 02:49:44,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927191376] [2022-03-20 02:49:44,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:49:44,218 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 02:49:44,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:49:44,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 02:49:44,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:49:44,218 INFO L87 Difference]: Start difference. First operand 3865 states and 5503 transitions. Second operand has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 5 states have internal predecessors, (175), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:46,231 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 02:49:46,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:49:46,946 INFO L93 Difference]: Finished difference Result 8492 states and 12062 transitions. [2022-03-20 02:49:46,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:49:46,946 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 5 states have internal predecessors, (175), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 347 [2022-03-20 02:49:46,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:49:46,953 INFO L225 Difference]: With dead ends: 8492 [2022-03-20 02:49:46,953 INFO L226 Difference]: Without dead ends: 4655 [2022-03-20 02:49:46,959 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-03-20 02:49:46,959 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 244 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 118 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:49:46,959 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 336 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 02:49:46,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4655 states. [2022-03-20 02:49:47,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4655 to 4177. [2022-03-20 02:49:47,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4177 states, 4172 states have (on average 1.421620325982742) internal successors, (5931), 4172 states have internal predecessors, (5931), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:47,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4177 states to 4177 states and 5935 transitions. [2022-03-20 02:49:47,098 INFO L78 Accepts]: Start accepts. Automaton has 4177 states and 5935 transitions. Word has length 347 [2022-03-20 02:49:47,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:49:47,098 INFO L478 AbstractCegarLoop]: Abstraction has 4177 states and 5935 transitions. [2022-03-20 02:49:47,098 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 5 states have internal predecessors, (175), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:47,098 INFO L276 IsEmpty]: Start isEmpty. Operand 4177 states and 5935 transitions. [2022-03-20 02:49:47,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2022-03-20 02:49:47,103 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:49:47,103 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:49:47,104 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-20 02:49:47,104 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:49:47,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:49:47,104 INFO L85 PathProgramCache]: Analyzing trace with hash 331048072, now seen corresponding path program 1 times [2022-03-20 02:49:47,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:49:47,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901094913] [2022-03-20 02:49:47,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:49:47,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:49:47,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:47,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:49:47,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:47,270 INFO L134 CoverageAnalysis]: Checked inductivity of 989 backedges. 597 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2022-03-20 02:49:47,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:49:47,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901094913] [2022-03-20 02:49:47,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901094913] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:49:47,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:49:47,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:49:47,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421472129] [2022-03-20 02:49:47,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:49:47,272 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:49:47,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:49:47,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:49:47,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:49:47,272 INFO L87 Difference]: Start difference. First operand 4177 states and 5935 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:49,282 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 02:49:49,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:49:49,874 INFO L93 Difference]: Finished difference Result 8528 states and 12108 transitions. [2022-03-20 02:49:49,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:49:49,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 347 [2022-03-20 02:49:49,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:49:49,890 INFO L225 Difference]: With dead ends: 8528 [2022-03-20 02:49:49,890 INFO L226 Difference]: Without dead ends: 4379 [2022-03-20 02:49:49,896 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 02:49:49,896 INFO L913 BasicCegarLoop]: 237 mSDtfsCounter, 64 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:49:49,896 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 580 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 509 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:49:49,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4379 states. [2022-03-20 02:49:49,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4379 to 4177. [2022-03-20 02:49:49,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4177 states, 4172 states have (on average 1.4197027804410354) internal successors, (5923), 4172 states have internal predecessors, (5923), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:49,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4177 states to 4177 states and 5927 transitions. [2022-03-20 02:49:49,999 INFO L78 Accepts]: Start accepts. Automaton has 4177 states and 5927 transitions. Word has length 347 [2022-03-20 02:49:49,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:49:49,999 INFO L478 AbstractCegarLoop]: Abstraction has 4177 states and 5927 transitions. [2022-03-20 02:49:49,999 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:49,999 INFO L276 IsEmpty]: Start isEmpty. Operand 4177 states and 5927 transitions. [2022-03-20 02:49:50,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-03-20 02:49:50,005 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:49:50,005 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:49:50,005 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-20 02:49:50,005 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:49:50,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:49:50,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1937177240, now seen corresponding path program 1 times [2022-03-20 02:49:50,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:49:50,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65205241] [2022-03-20 02:49:50,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:49:50,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:49:50,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:50,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:49:50,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:50,381 INFO L134 CoverageAnalysis]: Checked inductivity of 994 backedges. 658 proven. 49 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2022-03-20 02:49:50,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:49:50,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65205241] [2022-03-20 02:49:50,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65205241] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 02:49:50,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287049083] [2022-03-20 02:49:50,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:49:50,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:49:50,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:49:50,403 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 02:49:50,415 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 02:49:51,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:51,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 1787 conjuncts, 19 conjunts are in the unsatisfiable core [2022-03-20 02:49:51,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 02:49:52,025 INFO L356 Elim1Store]: treesize reduction 37, result has 45.6 percent of original size [2022-03-20 02:49:52,027 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 128 treesize of output 111 [2022-03-20 02:49:52,031 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 126 treesize of output 96 [2022-03-20 02:49:52,035 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 96 treesize of output 66 [2022-03-20 02:49:52,259 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 02:49:52,533 INFO L134 CoverageAnalysis]: Checked inductivity of 994 backedges. 669 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-03-20 02:49:52,533 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-20 02:49:52,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287049083] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:49:52,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-20 02:49:52,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-03-20 02:49:52,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878840780] [2022-03-20 02:49:52,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:49:52,534 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 02:49:52,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:49:52,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 02:49:52,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-03-20 02:49:52,535 INFO L87 Difference]: Start difference. First operand 4177 states and 5927 transitions. Second operand has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 6 states have internal predecessors, (176), 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 02:49:54,547 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 02:49:55,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:49:55,414 INFO L93 Difference]: Finished difference Result 8841 states and 12534 transitions. [2022-03-20 02:49:55,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 02:49:55,415 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 6 states have internal predecessors, (176), 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 348 [2022-03-20 02:49:55,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:49:55,421 INFO L225 Difference]: With dead ends: 8841 [2022-03-20 02:49:55,421 INFO L226 Difference]: Without dead ends: 4692 [2022-03-20 02:49:55,428 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-03-20 02:49:55,429 INFO L913 BasicCegarLoop]: 258 mSDtfsCounter, 185 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:49:55,429 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 816 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 526 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-03-20 02:49:55,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4692 states. [2022-03-20 02:49:55,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4692 to 4233. [2022-03-20 02:49:55,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4233 states, 4228 states have (on average 1.4150898770104068) internal successors, (5983), 4228 states have internal predecessors, (5983), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:55,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4233 states to 4233 states and 5987 transitions. [2022-03-20 02:49:55,658 INFO L78 Accepts]: Start accepts. Automaton has 4233 states and 5987 transitions. Word has length 348 [2022-03-20 02:49:55,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:49:55,658 INFO L478 AbstractCegarLoop]: Abstraction has 4233 states and 5987 transitions. [2022-03-20 02:49:55,658 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 6 states have internal predecessors, (176), 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 02:49:55,659 INFO L276 IsEmpty]: Start isEmpty. Operand 4233 states and 5987 transitions. [2022-03-20 02:49:55,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-03-20 02:49:55,668 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:49:55,668 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:49:55,706 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 02:49:55,881 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,SelfDestructingSolverStorable56 [2022-03-20 02:49:55,882 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:49:55,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:49:55,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1906515320, now seen corresponding path program 1 times [2022-03-20 02:49:55,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:49:55,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059945672] [2022-03-20 02:49:55,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:49:55,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:49:55,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:56,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:49:56,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:56,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 694 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2022-03-20 02:49:56,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:49:56,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059945672] [2022-03-20 02:49:56,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059945672] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:49:56,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:49:56,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:49:56,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101585493] [2022-03-20 02:49:56,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:49:56,140 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:49:56,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:49:56,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:49:56,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:49:56,140 INFO L87 Difference]: Start difference. First operand 4233 states and 5987 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:58,151 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 02:49:58,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:49:58,895 INFO L93 Difference]: Finished difference Result 8576 states and 12108 transitions. [2022-03-20 02:49:58,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:49:58,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 350 [2022-03-20 02:49:58,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:49:58,900 INFO L225 Difference]: With dead ends: 8576 [2022-03-20 02:49:58,900 INFO L226 Difference]: Without dead ends: 4371 [2022-03-20 02:49:58,904 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 02:49:58,905 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 37 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:49:58,905 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 568 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 472 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 02:49:58,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4371 states. [2022-03-20 02:49:59,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4371 to 4233. [2022-03-20 02:49:59,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4233 states, 4228 states have (on average 1.413197729422895) internal successors, (5975), 4228 states have internal predecessors, (5975), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:59,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4233 states to 4233 states and 5979 transitions. [2022-03-20 02:49:59,043 INFO L78 Accepts]: Start accepts. Automaton has 4233 states and 5979 transitions. Word has length 350 [2022-03-20 02:49:59,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:49:59,043 INFO L478 AbstractCegarLoop]: Abstraction has 4233 states and 5979 transitions. [2022-03-20 02:49:59,044 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:49:59,044 INFO L276 IsEmpty]: Start isEmpty. Operand 4233 states and 5979 transitions. [2022-03-20 02:49:59,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2022-03-20 02:49:59,049 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:49:59,050 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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] [2022-03-20 02:49:59,050 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-20 02:49:59,050 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:49:59,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:49:59,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1199195017, now seen corresponding path program 1 times [2022-03-20 02:49:59,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:49:59,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586004867] [2022-03-20 02:49:59,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:49:59,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:49:59,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:59,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:49:59,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:49:59,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1072 backedges. 680 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2022-03-20 02:49:59,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:49:59,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586004867] [2022-03-20 02:49:59,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586004867] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:49:59,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:49:59,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:49:59,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585764083] [2022-03-20 02:49:59,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:49:59,235 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:49:59,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:49:59,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:49:59,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:49:59,236 INFO L87 Difference]: Start difference. First operand 4233 states and 5979 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:01,245 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 02:50:01,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:50:01,769 INFO L93 Difference]: Finished difference Result 8544 states and 12050 transitions. [2022-03-20 02:50:01,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:50:01,770 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 352 [2022-03-20 02:50:01,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:50:01,774 INFO L225 Difference]: With dead ends: 8544 [2022-03-20 02:50:01,774 INFO L226 Difference]: Without dead ends: 4339 [2022-03-20 02:50:01,778 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 02:50:01,778 INFO L913 BasicCegarLoop]: 227 mSDtfsCounter, 39 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:50:01,779 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 560 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:50:01,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4339 states. [2022-03-20 02:50:01,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4339 to 4233. [2022-03-20 02:50:01,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4233 states, 4228 states have (on average 1.4113055818353832) internal successors, (5967), 4228 states have internal predecessors, (5967), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:01,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4233 states to 4233 states and 5971 transitions. [2022-03-20 02:50:01,894 INFO L78 Accepts]: Start accepts. Automaton has 4233 states and 5971 transitions. Word has length 352 [2022-03-20 02:50:01,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:50:01,895 INFO L478 AbstractCegarLoop]: Abstraction has 4233 states and 5971 transitions. [2022-03-20 02:50:01,895 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:01,895 INFO L276 IsEmpty]: Start isEmpty. Operand 4233 states and 5971 transitions. [2022-03-20 02:50:01,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2022-03-20 02:50:01,900 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:50:01,900 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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] [2022-03-20 02:50:01,900 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-20 02:50:01,901 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:50:01,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:50:01,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1742131507, now seen corresponding path program 1 times [2022-03-20 02:50:01,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:50:01,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573464313] [2022-03-20 02:50:01,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:01,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:50:02,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:02,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:50:02,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:02,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1077 backedges. 707 proven. 88 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2022-03-20 02:50:02,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:50:02,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573464313] [2022-03-20 02:50:02,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573464313] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 02:50:02,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376662358] [2022-03-20 02:50:02,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:02,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:50:02,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:50:02,130 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 02:50:02,131 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 02:50:03,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:03,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 1759 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-20 02:50:03,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 02:50:03,250 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 02:50:03,250 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 02:50:03,299 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 02:50:03,299 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 02:50:03,369 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 02:50:03,495 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 02:50:03,510 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 02:50:03,510 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-20 02:50:03,609 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 19 treesize of output 7 [2022-03-20 02:50:03,848 INFO L134 CoverageAnalysis]: Checked inductivity of 1077 backedges. 709 proven. 67 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-03-20 02:50:03,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 02:50:04,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1077 backedges. 715 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2022-03-20 02:50:04,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1376662358] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 02:50:04,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 02:50:04,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 7] total 10 [2022-03-20 02:50:04,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459033771] [2022-03-20 02:50:04,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:50:04,389 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:50:04,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:50:04,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:50:04,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-20 02:50:04,389 INFO L87 Difference]: Start difference. First operand 4233 states and 5971 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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 02:50:06,399 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:50:06,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:50:06,892 INFO L93 Difference]: Finished difference Result 8900 states and 12530 transitions. [2022-03-20 02:50:06,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:50:06,893 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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 353 [2022-03-20 02:50:06,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:50:06,899 INFO L225 Difference]: With dead ends: 8900 [2022-03-20 02:50:06,899 INFO L226 Difference]: Without dead ends: 4695 [2022-03-20 02:50:06,904 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 717 GetRequests, 708 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-20 02:50:06,904 INFO L913 BasicCegarLoop]: 119 mSDtfsCounter, 105 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:50:06,904 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 337 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 254 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 02:50:06,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4695 states. [2022-03-20 02:50:07,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4695 to 4126. [2022-03-20 02:50:07,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4126 states, 4121 states have (on average 1.4108226158699344) internal successors, (5814), 4121 states have internal predecessors, (5814), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:07,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4126 states to 4126 states and 5818 transitions. [2022-03-20 02:50:07,029 INFO L78 Accepts]: Start accepts. Automaton has 4126 states and 5818 transitions. Word has length 353 [2022-03-20 02:50:07,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:50:07,029 INFO L478 AbstractCegarLoop]: Abstraction has 4126 states and 5818 transitions. [2022-03-20 02:50:07,029 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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 02:50:07,029 INFO L276 IsEmpty]: Start isEmpty. Operand 4126 states and 5818 transitions. [2022-03-20 02:50:07,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2022-03-20 02:50:07,034 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:50:07,034 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:50:07,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-20 02:50:07,251 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,SelfDestructingSolverStorable59 [2022-03-20 02:50:07,251 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:50:07,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:50:07,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1302067730, now seen corresponding path program 1 times [2022-03-20 02:50:07,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:50:07,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790226928] [2022-03-20 02:50:07,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:07,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:50:07,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:07,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:50:07,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:07,469 INFO L134 CoverageAnalysis]: Checked inductivity of 1088 backedges. 714 proven. 83 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-03-20 02:50:07,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:50:07,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790226928] [2022-03-20 02:50:07,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790226928] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 02:50:07,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169426561] [2022-03-20 02:50:07,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:07,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:50:07,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:50:07,471 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 02:50:07,480 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 02:50:08,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:08,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 1766 conjuncts, 23 conjunts are in the unsatisfiable core [2022-03-20 02:50:08,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 02:50:08,642 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 02:50:08,642 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 02:50:08,697 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 02:50:08,698 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 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 02:50:08,805 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 02:50:08,985 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 02:50:08,986 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 02:50:09,076 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 02:50:09,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1088 backedges. 686 proven. 126 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-03-20 02:50:09,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 02:50:09,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1088 backedges. 707 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2022-03-20 02:50:09,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169426561] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 02:50:09,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 02:50:09,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 13 [2022-03-20 02:50:09,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290624165] [2022-03-20 02:50:09,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:50:09,647 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:50:09,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:50:09,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:50:09,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-03-20 02:50:09,647 INFO L87 Difference]: Start difference. First operand 4126 states and 5818 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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 02:50:11,654 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 02:50:12,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:50:12,129 INFO L93 Difference]: Finished difference Result 9002 states and 12664 transitions. [2022-03-20 02:50:12,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:50:12,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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 353 [2022-03-20 02:50:12,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:50:12,137 INFO L225 Difference]: With dead ends: 9002 [2022-03-20 02:50:12,137 INFO L226 Difference]: Without dead ends: 4904 [2022-03-20 02:50:12,142 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 716 GetRequests, 704 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-20 02:50:12,142 INFO L913 BasicCegarLoop]: 202 mSDtfsCounter, 103 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:50:12,155 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 501 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 260 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 02:50:12,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4904 states. [2022-03-20 02:50:12,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4904 to 4438. [2022-03-20 02:50:12,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4438 states, 4433 states have (on average 1.4083013760433116) internal successors, (6243), 4433 states have internal predecessors, (6243), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:12,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4438 states to 4438 states and 6247 transitions. [2022-03-20 02:50:12,302 INFO L78 Accepts]: Start accepts. Automaton has 4438 states and 6247 transitions. Word has length 353 [2022-03-20 02:50:12,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:50:12,302 INFO L478 AbstractCegarLoop]: Abstraction has 4438 states and 6247 transitions. [2022-03-20 02:50:12,302 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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 02:50:12,302 INFO L276 IsEmpty]: Start isEmpty. Operand 4438 states and 6247 transitions. [2022-03-20 02:50:12,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-03-20 02:50:12,307 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:50:12,307 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:50:12,332 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 02:50:12,523 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:50:12,523 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:50:12,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:50:12,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1408514540, now seen corresponding path program 1 times [2022-03-20 02:50:12,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:50:12,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835045851] [2022-03-20 02:50:12,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:12,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:50:12,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:12,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:50:12,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:12,732 INFO L134 CoverageAnalysis]: Checked inductivity of 1091 backedges. 672 proven. 0 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2022-03-20 02:50:12,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:50:12,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835045851] [2022-03-20 02:50:12,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835045851] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:50:12,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:50:12,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:50:12,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589750547] [2022-03-20 02:50:12,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:50:12,733 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:50:12,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:50:12,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:50:12,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:50:12,734 INFO L87 Difference]: Start difference. First operand 4438 states and 6247 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:14,744 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 02:50:15,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:50:15,316 INFO L93 Difference]: Finished difference Result 9202 states and 12944 transitions. [2022-03-20 02:50:15,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:50:15,316 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 354 [2022-03-20 02:50:15,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:50:15,322 INFO L225 Difference]: With dead ends: 9202 [2022-03-20 02:50:15,323 INFO L226 Difference]: Without dead ends: 4792 [2022-03-20 02:50:15,329 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:50:15,329 INFO L913 BasicCegarLoop]: 234 mSDtfsCounter, 33 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:50:15,329 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 574 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:50:15,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4792 states. [2022-03-20 02:50:15,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4792 to 4646. [2022-03-20 02:50:15,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4646 states, 4641 states have (on average 1.407239819004525) internal successors, (6531), 4641 states have internal predecessors, (6531), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:15,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4646 states to 4646 states and 6535 transitions. [2022-03-20 02:50:15,470 INFO L78 Accepts]: Start accepts. Automaton has 4646 states and 6535 transitions. Word has length 354 [2022-03-20 02:50:15,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:50:15,470 INFO L478 AbstractCegarLoop]: Abstraction has 4646 states and 6535 transitions. [2022-03-20 02:50:15,470 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:15,471 INFO L276 IsEmpty]: Start isEmpty. Operand 4646 states and 6535 transitions. [2022-03-20 02:50:15,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2022-03-20 02:50:15,476 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:50:15,476 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:50:15,476 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-20 02:50:15,477 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:50:15,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:50:15,477 INFO L85 PathProgramCache]: Analyzing trace with hash 836654674, now seen corresponding path program 1 times [2022-03-20 02:50:15,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:50:15,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018544890] [2022-03-20 02:50:15,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:15,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:50:15,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:15,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:50:15,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:15,662 INFO L134 CoverageAnalysis]: Checked inductivity of 1098 backedges. 682 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2022-03-20 02:50:15,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:50:15,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018544890] [2022-03-20 02:50:15,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018544890] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:50:15,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:50:15,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:50:15,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686976629] [2022-03-20 02:50:15,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:50:15,663 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:50:15,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:50:15,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:50:15,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:50:15,663 INFO L87 Difference]: Start difference. First operand 4646 states and 6535 transitions. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:17,682 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 02:50:18,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:50:18,277 INFO L93 Difference]: Finished difference Result 9474 states and 13328 transitions. [2022-03-20 02:50:18,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:50:18,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 359 [2022-03-20 02:50:18,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:50:18,285 INFO L225 Difference]: With dead ends: 9474 [2022-03-20 02:50:18,285 INFO L226 Difference]: Without dead ends: 4856 [2022-03-20 02:50:18,290 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 02:50:18,291 INFO L913 BasicCegarLoop]: 239 mSDtfsCounter, 44 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:50:18,291 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 585 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 499 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:50:18,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4856 states. [2022-03-20 02:50:18,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4856 to 4646. [2022-03-20 02:50:18,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4646 states, 4641 states have (on average 1.405516052574876) internal successors, (6523), 4641 states have internal predecessors, (6523), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:18,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4646 states to 4646 states and 6527 transitions. [2022-03-20 02:50:18,446 INFO L78 Accepts]: Start accepts. Automaton has 4646 states and 6527 transitions. Word has length 359 [2022-03-20 02:50:18,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:50:18,446 INFO L478 AbstractCegarLoop]: Abstraction has 4646 states and 6527 transitions. [2022-03-20 02:50:18,446 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:18,446 INFO L276 IsEmpty]: Start isEmpty. Operand 4646 states and 6527 transitions. [2022-03-20 02:50:18,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-03-20 02:50:18,454 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:50:18,454 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:50:18,455 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-20 02:50:18,455 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:50:18,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:50:18,455 INFO L85 PathProgramCache]: Analyzing trace with hash -226003756, now seen corresponding path program 2 times [2022-03-20 02:50:18,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:50:18,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727803846] [2022-03-20 02:50:18,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:18,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:50:18,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:18,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:50:18,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:18,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 817 proven. 0 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2022-03-20 02:50:18,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:50:18,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727803846] [2022-03-20 02:50:18,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727803846] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:50:18,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:50:18,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 02:50:18,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341688541] [2022-03-20 02:50:18,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:50:18,736 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 02:50:18,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:50:18,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 02:50:18,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:50:18,740 INFO L87 Difference]: Start difference. First operand 4646 states and 6527 transitions. Second operand has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 5 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:20,755 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 02:50:21,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:50:21,799 INFO L93 Difference]: Finished difference Result 11132 states and 15656 transitions. [2022-03-20 02:50:21,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 02:50:21,800 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 5 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 360 [2022-03-20 02:50:21,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:50:21,810 INFO L225 Difference]: With dead ends: 11132 [2022-03-20 02:50:21,810 INFO L226 Difference]: Without dead ends: 6514 [2022-03-20 02:50:21,816 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 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 02:50:21,817 INFO L913 BasicCegarLoop]: 291 mSDtfsCounter, 104 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 32 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-20 02:50:21,817 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 884 Invalid, 896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 863 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2022-03-20 02:50:21,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6514 states. [2022-03-20 02:50:21,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6514 to 4448. [2022-03-20 02:50:21,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4448 states, 4443 states have (on average 1.4046815214944857) internal successors, (6241), 4443 states have internal predecessors, (6241), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:21,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4448 states to 4448 states and 6245 transitions. [2022-03-20 02:50:21,983 INFO L78 Accepts]: Start accepts. Automaton has 4448 states and 6245 transitions. Word has length 360 [2022-03-20 02:50:21,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:50:21,983 INFO L478 AbstractCegarLoop]: Abstraction has 4448 states and 6245 transitions. [2022-03-20 02:50:21,983 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 5 states have internal predecessors, (169), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:21,983 INFO L276 IsEmpty]: Start isEmpty. Operand 4448 states and 6245 transitions. [2022-03-20 02:50:21,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-03-20 02:50:21,988 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:50:21,988 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:50:21,988 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-20 02:50:21,988 INFO L403 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:50:21,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:50:21,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1627505750, now seen corresponding path program 2 times [2022-03-20 02:50:21,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:50:21,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797200158] [2022-03-20 02:50:21,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:21,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:50:22,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:22,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:50:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:22,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1140 trivial. 0 not checked. [2022-03-20 02:50:22,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:50:22,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797200158] [2022-03-20 02:50:22,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797200158] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:50:22,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:50:22,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 02:50:22,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802594852] [2022-03-20 02:50:22,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:50:22,367 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 02:50:22,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:50:22,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 02:50:22,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-20 02:50:22,368 INFO L87 Difference]: Start difference. First operand 4448 states and 6245 transitions. Second operand has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:24,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:50:25,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:50:25,106 INFO L93 Difference]: Finished difference Result 8889 states and 12482 transitions. [2022-03-20 02:50:25,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 02:50:25,106 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 360 [2022-03-20 02:50:25,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:50:25,113 INFO L225 Difference]: With dead ends: 8889 [2022-03-20 02:50:25,113 INFO L226 Difference]: Without dead ends: 4448 [2022-03-20 02:50:25,131 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-20 02:50:25,131 INFO L913 BasicCegarLoop]: 202 mSDtfsCounter, 7 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:50:25,131 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 807 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 431 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:50:25,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4448 states. [2022-03-20 02:50:25,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4448 to 4448. [2022-03-20 02:50:25,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4448 states, 4443 states have (on average 1.4044564483457123) internal successors, (6240), 4443 states have internal predecessors, (6240), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:25,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4448 states to 4448 states and 6244 transitions. [2022-03-20 02:50:25,298 INFO L78 Accepts]: Start accepts. Automaton has 4448 states and 6244 transitions. Word has length 360 [2022-03-20 02:50:25,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:50:25,298 INFO L478 AbstractCegarLoop]: Abstraction has 4448 states and 6244 transitions. [2022-03-20 02:50:25,298 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:50:25,298 INFO L276 IsEmpty]: Start isEmpty. Operand 4448 states and 6244 transitions. [2022-03-20 02:50:25,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2022-03-20 02:50:25,304 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:50:25,304 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:50:25,304 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-20 02:50:25,304 INFO L403 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:50:25,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:50:25,305 INFO L85 PathProgramCache]: Analyzing trace with hash 987536532, now seen corresponding path program 1 times [2022-03-20 02:50:25,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:50:25,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333325686] [2022-03-20 02:50:25,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:25,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:50:25,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:26,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:50:26,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:26,587 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 464 proven. 638 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 02:50:26,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:50:26,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333325686] [2022-03-20 02:50:26,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333325686] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 02:50:26,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166237684] [2022-03-20 02:50:26,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:50:26,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:50:26,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:50:26,596 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 02:50:26,597 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 02:50:27,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:50:27,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 1798 conjuncts, 133 conjunts are in the unsatisfiable core [2022-03-20 02:50:27,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 02:50:28,005 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 02:50:28,005 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 02:50:28,100 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 02:50:28,118 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-20 02:50:28,119 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-03-20 02:50:28,151 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 02:50:28,161 INFO L356 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2022-03-20 02:50:28,162 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 26 [2022-03-20 02:50:28,283 INFO L356 Elim1Store]: treesize reduction 31, result has 44.6 percent of original size [2022-03-20 02:50:28,283 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 63 treesize of output 63 [2022-03-20 02:50:28,286 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 45 treesize of output 33 [2022-03-20 02:50:28,305 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-20 02:50:28,305 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 33 [2022-03-20 02:50:28,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:28,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:28,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:28,367 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 42 [2022-03-20 02:50:28,384 INFO L356 Elim1Store]: treesize reduction 84, result has 18.4 percent of original size [2022-03-20 02:50:28,384 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 2 case distinctions, treesize of input 39 treesize of output 42 [2022-03-20 02:50:28,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:28,628 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 34 treesize of output 33 [2022-03-20 02:50:28,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:28,633 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 34 treesize of output 33 [2022-03-20 02:50:28,681 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-03-20 02:50:28,681 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 84 treesize of output 83 [2022-03-20 02:50:28,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:28,718 INFO L356 Elim1Store]: treesize reduction 68, result has 46.5 percent of original size [2022-03-20 02:50:28,718 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 46 treesize of output 84 [2022-03-20 02:50:28,733 INFO L356 Elim1Store]: treesize reduction 25, result has 47.9 percent of original size [2022-03-20 02:50:28,733 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 105 treesize of output 99 [2022-03-20 02:50:28,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:28,797 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-03-20 02:50:28,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:28,809 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 72 [2022-03-20 02:50:28,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:28,929 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 150 treesize of output 131 [2022-03-20 02:50:28,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:28,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:28,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:28,938 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 150 treesize of output 152 [2022-03-20 02:50:28,997 INFO L356 Elim1Store]: treesize reduction 344, result has 22.5 percent of original size [2022-03-20 02:50:28,998 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 150 treesize of output 173 [2022-03-20 02:50:30,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:30,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:30,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:30,638 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 193 treesize of output 189 [2022-03-20 02:50:30,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:30,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:30,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:30,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:30,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:30,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:30,727 INFO L356 Elim1Store]: treesize reduction 258, result has 26.1 percent of original size [2022-03-20 02:50:30,727 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 189 treesize of output 206 [2022-03-20 02:50:30,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:30,733 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 222 treesize of output 179 [2022-03-20 02:50:33,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:33,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:33,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:33,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:33,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:33,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:33,346 INFO L356 Elim1Store]: treesize reduction 284, result has 18.6 percent of original size [2022-03-20 02:50:33,346 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 139 treesize of output 166 [2022-03-20 02:50:33,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:33,353 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 94 treesize of output 87 [2022-03-20 02:50:33,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:33,357 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 137 treesize of output 100 [2022-03-20 02:50:33,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:33,462 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 107 treesize of output 100 [2022-03-20 02:50:33,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:33,465 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 107 treesize of output 82 [2022-03-20 02:50:33,533 INFO L356 Elim1Store]: treesize reduction 312, result has 23.7 percent of original size [2022-03-20 02:50:33,533 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 125 treesize of output 169 [2022-03-20 02:50:34,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:34,700 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-20 02:50:34,701 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 212 treesize of output 207 [2022-03-20 02:50:34,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:34,737 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-20 02:50:34,737 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 189 treesize of output 166 [2022-03-20 02:50:34,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:50:34,837 INFO L356 Elim1Store]: treesize reduction 132, result has 44.3 percent of original size [2022-03-20 02:50:34,837 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 87 treesize of output 163 [2022-03-20 02:51:16,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:51:16,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:51:16,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:51:16,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:51:16,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:51:16,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:51:16,827 INFO L356 Elim1Store]: treesize reduction 384, result has 25.3 percent of original size [2022-03-20 02:51:16,827 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 432 treesize of output 501 [2022-03-20 02:51:16,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:51:16,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:51:16,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:51:16,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:51:16,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:51:16,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 02:51:16,837 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 519 treesize of output 459 [2022-03-20 02:51:16,872 INFO L356 Elim1Store]: treesize reduction 154, result has 15.4 percent of original size [2022-03-20 02:51:16,873 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 477 treesize of output 417 [2022-03-20 03:00:07,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:07,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:07,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:07,494 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 427 treesize of output 381 [2022-03-20 03:00:07,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:07,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:07,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:07,499 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 394 treesize of output 348 [2022-03-20 03:00:07,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:07,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:07,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 03:00:07,586 INFO L356 Elim1Store]: treesize reduction 182, result has 27.2 percent of original size [2022-03-20 03:00:07,586 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 361 treesize of output 376