/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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 07:47:22,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 07:47:22,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 07:47:22,616 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 07:47:22,616 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 07:47:22,617 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 07:47:22,618 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 07:47:22,620 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 07:47:22,621 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 07:47:22,622 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 07:47:22,623 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 07:47:22,624 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 07:47:22,624 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 07:47:22,625 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 07:47:22,625 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 07:47:22,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 07:47:22,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 07:47:22,628 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 07:47:22,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 07:47:22,630 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 07:47:22,631 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 07:47:22,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 07:47:22,638 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 07:47:22,639 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 07:47:22,639 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 07:47:22,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 07:47:22,642 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 07:47:22,642 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 07:47:22,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 07:47:22,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 07:47:22,644 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-20 07:47:22,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-20 07:47:22,644 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-20 07:47:22,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-20 07:47:22,645 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-20 07:47:22,646 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-20 07:47:22,646 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-20 07:47:22,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-20 07:47:22,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-20 07:47:22,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 07:47:22,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 07:47:22,658 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 07:47:22,659 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-20 07:47:22,670 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 07:47:22,670 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 07:47:22,671 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 07:47:22,671 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 07:47:22,671 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 07:47:22,672 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 07:47:22,672 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 07:47:22,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 07:47:22,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 07:47:22,673 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 07:47:22,673 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 07:47:22,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 07:47:22,673 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 07:47:22,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 07:47:22,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 07:47:22,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 07:47:22,674 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 07:47:22,674 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 07:47:22,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 07:47:22,674 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 07:47:22,675 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 07:47:22,675 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-20 07:47:22,675 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 07:47:22,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 07:47:22,923 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 07:47:22,926 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 07:47:22,927 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 07:47:22,928 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 07:47:22,929 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-1.c [2022-03-20 07:47:22,987 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3440620b0/730bd3e871684e1cbee3f4490fa3ec14/FLAG61a3f9b16 [2022-03-20 07:47:23,410 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 07:47:23,410 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-1.c [2022-03-20 07:47:23,432 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3440620b0/730bd3e871684e1cbee3f4490fa3ec14/FLAG61a3f9b16 [2022-03-20 07:47:23,731 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3440620b0/730bd3e871684e1cbee3f4490fa3ec14 [2022-03-20 07:47:23,735 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 07:47:23,736 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-20 07:47:23,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 07:47:23,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 07:47:23,740 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 07:47:23,741 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 07:47:23" (1/1) ... [2022-03-20 07:47:23,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ae9f657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:47:23, skipping insertion in model container [2022-03-20 07:47:23,742 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 07:47:23" (1/1) ... [2022-03-20 07:47:23,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 07:47:23,825 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 07:47:24,154 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.15.i.cil-1.c[75550,75563] [2022-03-20 07:47:24,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 07:47:24,177 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 07:47:24,266 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.15.i.cil-1.c[75550,75563] [2022-03-20 07:47:24,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 07:47:24,286 INFO L208 MainTranslator]: Completed translation [2022-03-20 07:47:24,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:47:24 WrapperNode [2022-03-20 07:47:24,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 07:47:24,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 07:47:24,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 07:47:24,288 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 07:47:24,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:47:24" (1/1) ... [2022-03-20 07:47:24,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:47:24" (1/1) ... [2022-03-20 07:47:24,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:47:24" (1/1) ... [2022-03-20 07:47:24,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:47:24" (1/1) ... [2022-03-20 07:47:24,389 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:47:24" (1/1) ... [2022-03-20 07:47:24,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:47:24" (1/1) ... [2022-03-20 07:47:24,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:47:24" (1/1) ... [2022-03-20 07:47:24,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 07:47:24,427 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 07:47:24,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 07:47:24,427 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 07:47:24,428 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:47:24" (1/1) ... [2022-03-20 07:47:24,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 07:47:24,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:47:24,464 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 07:47:24,490 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 07:47:24,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 07:47:24,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 07:47:24,507 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 07:47:24,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-20 07:47:24,507 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-20 07:47:24,508 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 07:47:24,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-20 07:47:24,508 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 07:47:24,508 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 07:47:24,508 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 07:47:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 07:47:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 07:47:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 07:47:24,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 07:47:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 07:47:24,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 07:47:24,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 07:47:24,512 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 07:47:24,512 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 07:47:24,512 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 07:47:24,512 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-20 07:47:24,512 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 07:47:24,512 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-20 07:47:24,513 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-20 07:47:24,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 07:47:24,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 07:47:24,513 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 07:47:24,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 07:47:24,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 07:47:24,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 07:47:24,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 07:47:24,513 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 07:47:24,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 07:47:24,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 07:47:24,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 07:47:24,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 07:47:24,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 07:47:24,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 07:47:24,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 07:47:24,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 07:47:24,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 07:47:24,689 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 07:47:24,690 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 07:47:25,387 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 07:47:25,817 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-20 07:47:25,817 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-20 07:47:25,828 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 07:47:25,834 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 07:47:25,835 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 07:47:25,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 07:47:25 BoogieIcfgContainer [2022-03-20 07:47:25,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 07:47:25,837 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-20 07:47:25,837 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-20 07:47:25,838 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-20 07:47:25,840 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 07:47:25" (1/1) ... [2022-03-20 07:47:25,842 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-03-20 07:47:25,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 07:47:25 BasicIcfg [2022-03-20 07:47:25,882 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-20 07:47:25,883 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 07:47:25,883 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 07:47:25,886 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 07:47:25,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 07:47:23" (1/4) ... [2022-03-20 07:47:25,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@409a9b0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 07:47:25, skipping insertion in model container [2022-03-20 07:47:25,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:47:24" (2/4) ... [2022-03-20 07:47:25,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@409a9b0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 07:47:25, skipping insertion in model container [2022-03-20 07:47:25,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 07:47:25" (3/4) ... [2022-03-20 07:47:25,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@409a9b0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 07:47:25, skipping insertion in model container [2022-03-20 07:47:25,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 07:47:25" (4/4) ... [2022-03-20 07:47:25,888 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.15.i.cil-1.cJordan [2022-03-20 07:47:25,911 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-20 07:47:25,912 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 07:47:25,948 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 07:47:25,953 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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 07:47:25,953 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 07:47:25,968 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 153 states have (on average 1.7124183006535947) internal successors, (262), 154 states have internal predecessors, (262), 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 07:47:25,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-20 07:47:25,978 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:47:25,979 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:47:25,979 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:47:25,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:47:25,984 INFO L85 PathProgramCache]: Analyzing trace with hash 588345913, now seen corresponding path program 1 times [2022-03-20 07:47:25,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:47:25,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535437676] [2022-03-20 07:47:25,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:47:25,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:47:26,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:26,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:47:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:26,536 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 07:47:26,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:47:26,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535437676] [2022-03-20 07:47:26,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535437676] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:47:26,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:47:26,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:47:26,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785177175] [2022-03-20 07:47:26,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:47:26,543 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:47:26,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:47:26,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:47:26,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:47:26,570 INFO L87 Difference]: Start difference. First operand has 161 states, 153 states have (on average 1.7124183006535947) internal successors, (262), 154 states have internal predecessors, (262), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:29,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:47:29,257 INFO L93 Difference]: Finished difference Result 291 states and 485 transitions. [2022-03-20 07:47:29,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:47:29,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-03-20 07:47:29,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:47:29,274 INFO L225 Difference]: With dead ends: 291 [2022-03-20 07:47:29,274 INFO L226 Difference]: Without dead ends: 265 [2022-03-20 07:47:29,275 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 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 07:47:29,278 INFO L913 BasicCegarLoop]: 164 mSDtfsCounter, 156 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:47:29,278 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 481 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 07:47:29,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-03-20 07:47:29,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 185. [2022-03-20 07:47:29,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 180 states have (on average 1.6111111111111112) internal successors, (290), 180 states have internal predecessors, (290), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:29,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 294 transitions. [2022-03-20 07:47:29,321 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 294 transitions. Word has length 50 [2022-03-20 07:47:29,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:47:29,321 INFO L478 AbstractCegarLoop]: Abstraction has 185 states and 294 transitions. [2022-03-20 07:47:29,322 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:29,322 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 294 transitions. [2022-03-20 07:47:29,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-03-20 07:47:29,324 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:47:29,324 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:47:29,324 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 07:47:29,324 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:47:29,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:47:29,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1971108142, now seen corresponding path program 1 times [2022-03-20 07:47:29,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:47:29,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332699927] [2022-03-20 07:47:29,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:47:29,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:47:29,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:29,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:47:29,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:29,529 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 07:47:29,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:47:29,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332699927] [2022-03-20 07:47:29,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332699927] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:47:29,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:47:29,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:47:29,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641236984] [2022-03-20 07:47:29,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:47:29,538 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:47:29,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:47:29,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:47:29,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:47:29,544 INFO L87 Difference]: Start difference. First operand 185 states and 294 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:32,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:47:32,669 INFO L93 Difference]: Finished difference Result 213 states and 334 transitions. [2022-03-20 07:47:32,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:47:32,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-03-20 07:47:32,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:47:32,671 INFO L225 Difference]: With dead ends: 213 [2022-03-20 07:47:32,671 INFO L226 Difference]: Without dead ends: 213 [2022-03-20 07:47:32,672 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 07:47:32,673 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 22 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-20 07:47:32,674 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 499 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-20 07:47:32,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-03-20 07:47:32,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 196. [2022-03-20 07:47:32,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 191 states have (on average 1.617801047120419) internal successors, (309), 191 states have internal predecessors, (309), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:32,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 313 transitions. [2022-03-20 07:47:32,696 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 313 transitions. Word has length 51 [2022-03-20 07:47:32,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:47:32,697 INFO L478 AbstractCegarLoop]: Abstraction has 196 states and 313 transitions. [2022-03-20 07:47:32,697 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:32,697 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 313 transitions. [2022-03-20 07:47:32,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-20 07:47:32,699 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:47:32,699 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:47:32,699 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 07:47:32,699 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:47:32,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:47:32,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1308484506, now seen corresponding path program 1 times [2022-03-20 07:47:32,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:47:32,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439630448] [2022-03-20 07:47:32,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:47:32,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:47:32,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:32,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:47:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:32,862 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 07:47:32,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:47:32,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439630448] [2022-03-20 07:47:32,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439630448] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:47:32,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:47:32,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:47:32,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627223564] [2022-03-20 07:47:32,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:47:32,864 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:47:32,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:47:32,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:47:32,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:47:32,865 INFO L87 Difference]: Start difference. First operand 196 states and 313 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:34,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:47:34,989 INFO L93 Difference]: Finished difference Result 213 states and 333 transitions. [2022-03-20 07:47:34,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:47:34,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-20 07:47:34,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:47:34,991 INFO L225 Difference]: With dead ends: 213 [2022-03-20 07:47:34,991 INFO L226 Difference]: Without dead ends: 213 [2022-03-20 07:47:34,992 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 07:47:34,993 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 24 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-20 07:47:34,993 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 501 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-20 07:47:34,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-03-20 07:47:35,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 196. [2022-03-20 07:47:35,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 191 states have (on average 1.612565445026178) internal successors, (308), 191 states have internal predecessors, (308), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:35,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 312 transitions. [2022-03-20 07:47:35,003 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 312 transitions. Word has length 64 [2022-03-20 07:47:35,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:47:35,004 INFO L478 AbstractCegarLoop]: Abstraction has 196 states and 312 transitions. [2022-03-20 07:47:35,004 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:35,004 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 312 transitions. [2022-03-20 07:47:35,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 07:47:35,006 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:47:35,006 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:47:35,006 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 07:47:35,006 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:47:35,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:47:35,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1918189260, now seen corresponding path program 1 times [2022-03-20 07:47:35,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:47:35,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266633231] [2022-03-20 07:47:35,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:47:35,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:47:35,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:35,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:47:35,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:35,215 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 07:47:35,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:47:35,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266633231] [2022-03-20 07:47:35,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266633231] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:47:35,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:47:35,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:47:35,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682874740] [2022-03-20 07:47:35,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:47:35,221 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:47:35,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:47:35,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:47:35,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:47:35,222 INFO L87 Difference]: Start difference. First operand 196 states and 312 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:37,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:47:37,167 INFO L93 Difference]: Finished difference Result 212 states and 331 transitions. [2022-03-20 07:47:37,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:47:37,167 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-20 07:47:37,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:47:37,169 INFO L225 Difference]: With dead ends: 212 [2022-03-20 07:47:37,169 INFO L226 Difference]: Without dead ends: 212 [2022-03-20 07:47:37,169 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 07:47:37,170 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 28 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:47:37,170 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 503 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-20 07:47:37,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-03-20 07:47:37,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 196. [2022-03-20 07:47:37,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 191 states have (on average 1.6073298429319371) internal successors, (307), 191 states have internal predecessors, (307), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:37,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 311 transitions. [2022-03-20 07:47:37,186 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 311 transitions. Word has length 65 [2022-03-20 07:47:37,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:47:37,186 INFO L478 AbstractCegarLoop]: Abstraction has 196 states and 311 transitions. [2022-03-20 07:47:37,187 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:37,187 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 311 transitions. [2022-03-20 07:47:37,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 07:47:37,188 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:47:37,188 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:47:37,188 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 07:47:37,188 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:47:37,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:47:37,189 INFO L85 PathProgramCache]: Analyzing trace with hash -956367596, now seen corresponding path program 1 times [2022-03-20 07:47:37,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:47:37,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90972230] [2022-03-20 07:47:37,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:47:37,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:47:37,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:37,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:47:37,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:37,349 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 07:47:37,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:47:37,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90972230] [2022-03-20 07:47:37,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90972230] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:47:37,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:47:37,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:47:37,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532332303] [2022-03-20 07:47:37,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:47:37,352 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:47:37,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:47:37,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:47:37,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:47:37,353 INFO L87 Difference]: Start difference. First operand 196 states and 311 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:39,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:47:39,828 INFO L93 Difference]: Finished difference Result 315 states and 494 transitions. [2022-03-20 07:47:39,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:47:39,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-20 07:47:39,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:47:39,830 INFO L225 Difference]: With dead ends: 315 [2022-03-20 07:47:39,830 INFO L226 Difference]: Without dead ends: 315 [2022-03-20 07:47:39,831 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 07:47:39,831 INFO L913 BasicCegarLoop]: 124 mSDtfsCounter, 151 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:47:39,831 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 362 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 07:47:39,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-03-20 07:47:39,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 208. [2022-03-20 07:47:39,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.5911330049261083) internal successors, (323), 203 states have internal predecessors, (323), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:39,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 327 transitions. [2022-03-20 07:47:39,840 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 327 transitions. Word has length 65 [2022-03-20 07:47:39,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:47:39,840 INFO L478 AbstractCegarLoop]: Abstraction has 208 states and 327 transitions. [2022-03-20 07:47:39,840 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:39,840 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 327 transitions. [2022-03-20 07:47:39,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 07:47:39,841 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:47:39,841 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:47:39,842 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 07:47:39,842 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:47:39,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:47:39,842 INFO L85 PathProgramCache]: Analyzing trace with hash 631343316, now seen corresponding path program 1 times [2022-03-20 07:47:39,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:47:39,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822566377] [2022-03-20 07:47:39,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:47:39,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:47:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:39,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:47:39,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:39,979 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 07:47:39,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:47:39,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822566377] [2022-03-20 07:47:39,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822566377] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:47:39,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:47:39,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:47:39,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458077374] [2022-03-20 07:47:39,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:47:39,981 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:47:39,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:47:39,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:47:39,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:47:39,983 INFO L87 Difference]: Start difference. First operand 208 states and 327 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:41,062 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:47:42,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:47:43,971 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:47:44,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:47:44,371 INFO L93 Difference]: Finished difference Result 222 states and 344 transitions. [2022-03-20 07:47:44,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:47:44,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-20 07:47:44,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:47:44,374 INFO L225 Difference]: With dead ends: 222 [2022-03-20 07:47:44,374 INFO L226 Difference]: Without dead ends: 222 [2022-03-20 07:47:44,374 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 07:47:44,375 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 20 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:47:44,375 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 507 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-03-20 07:47:44,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-03-20 07:47:44,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 208. [2022-03-20 07:47:44,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.5862068965517242) internal successors, (322), 203 states have internal predecessors, (322), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:44,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 326 transitions. [2022-03-20 07:47:44,381 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 326 transitions. Word has length 65 [2022-03-20 07:47:44,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:47:44,381 INFO L478 AbstractCegarLoop]: Abstraction has 208 states and 326 transitions. [2022-03-20 07:47:44,381 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:44,381 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 326 transitions. [2022-03-20 07:47:44,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 07:47:44,382 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:47:44,382 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:47:44,382 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 07:47:44,382 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:47:44,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:47:44,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1301074508, now seen corresponding path program 1 times [2022-03-20 07:47:44,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:47:44,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48200689] [2022-03-20 07:47:44,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:47:44,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:47:44,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:44,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:47:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:44,557 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 07:47:44,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:47:44,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48200689] [2022-03-20 07:47:44,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48200689] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:47:44,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:47:44,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:47:44,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082521600] [2022-03-20 07:47:44,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:47:44,558 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:47:44,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:47:44,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:47:44,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:47:44,559 INFO L87 Difference]: Start difference. First operand 208 states and 326 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:47,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:47:47,120 INFO L93 Difference]: Finished difference Result 314 states and 489 transitions. [2022-03-20 07:47:47,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:47:47,121 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-20 07:47:47,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:47:47,123 INFO L225 Difference]: With dead ends: 314 [2022-03-20 07:47:47,123 INFO L226 Difference]: Without dead ends: 314 [2022-03-20 07:47:47,123 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 07:47:47,124 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 144 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:47:47,124 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 364 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 07:47:47,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-03-20 07:47:47,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 214. [2022-03-20 07:47:47,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5837320574162679) internal successors, (331), 209 states have internal predecessors, (331), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:47,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 335 transitions. [2022-03-20 07:47:47,130 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 335 transitions. Word has length 65 [2022-03-20 07:47:47,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:47:47,130 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 335 transitions. [2022-03-20 07:47:47,131 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:47,131 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 335 transitions. [2022-03-20 07:47:47,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 07:47:47,131 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:47:47,132 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:47:47,132 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 07:47:47,132 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:47:47,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:47:47,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1470127014, now seen corresponding path program 1 times [2022-03-20 07:47:47,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:47:47,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906397408] [2022-03-20 07:47:47,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:47:47,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:47:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:47,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:47:47,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:47,254 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 07:47:47,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:47:47,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906397408] [2022-03-20 07:47:47,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906397408] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:47:47,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:47:47,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:47:47,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683608030] [2022-03-20 07:47:47,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:47:47,255 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:47:47,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:47:47,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:47:47,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:47:47,256 INFO L87 Difference]: Start difference. First operand 214 states and 335 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 07:47:50,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:47:50,396 INFO L93 Difference]: Finished difference Result 227 states and 351 transitions. [2022-03-20 07:47:50,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:47:50,396 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 07:47:50,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:47:50,398 INFO L225 Difference]: With dead ends: 227 [2022-03-20 07:47:50,398 INFO L226 Difference]: Without dead ends: 227 [2022-03-20 07:47:50,398 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 07:47:50,398 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 22 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-20 07:47:50,399 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 509 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-20 07:47:50,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-03-20 07:47:50,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 214. [2022-03-20 07:47:50,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5789473684210527) internal successors, (330), 209 states have internal predecessors, (330), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:50,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 334 transitions. [2022-03-20 07:47:50,404 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 334 transitions. Word has length 66 [2022-03-20 07:47:50,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:47:50,405 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 334 transitions. [2022-03-20 07:47:50,405 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 07:47:50,405 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 334 transitions. [2022-03-20 07:47:50,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-20 07:47:50,406 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:47:50,406 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:47:50,406 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 07:47:50,406 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:47:50,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:47:50,407 INFO L85 PathProgramCache]: Analyzing trace with hash -633442992, now seen corresponding path program 1 times [2022-03-20 07:47:50,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:47:50,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500543606] [2022-03-20 07:47:50,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:47:50,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:47:50,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:50,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:47:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:50,519 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 07:47:50,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:47:50,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500543606] [2022-03-20 07:47:50,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500543606] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:47:50,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:47:50,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:47:50,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855137431] [2022-03-20 07:47:50,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:47:50,521 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:47:50,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:47:50,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:47:50,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:47:50,521 INFO L87 Difference]: Start difference. First operand 214 states and 334 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 07:47:52,531 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 07:47:53,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:47:53,173 INFO L93 Difference]: Finished difference Result 314 states and 485 transitions. [2022-03-20 07:47:53,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:47:53,180 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 07:47:53,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:47:53,181 INFO L225 Difference]: With dead ends: 314 [2022-03-20 07:47:53,181 INFO L226 Difference]: Without dead ends: 314 [2022-03-20 07:47:53,181 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 07:47:53,182 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 147 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:47:53,182 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 364 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-03-20 07:47:53,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-03-20 07:47:53,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 214. [2022-03-20 07:47:53,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5645933014354068) internal successors, (327), 209 states have internal predecessors, (327), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:53,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 331 transitions. [2022-03-20 07:47:53,191 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 331 transitions. Word has length 67 [2022-03-20 07:47:53,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:47:53,191 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 331 transitions. [2022-03-20 07:47:53,191 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 07:47:53,191 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 331 transitions. [2022-03-20 07:47:53,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-20 07:47:53,192 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:47:53,192 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:47:53,192 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 07:47:53,192 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:47:53,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:47:53,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1852266313, now seen corresponding path program 1 times [2022-03-20 07:47:53,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:47:53,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913682032] [2022-03-20 07:47:53,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:47:53,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:47:53,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:53,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:47:53,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:53,313 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:47:53,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:47:53,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913682032] [2022-03-20 07:47:53,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913682032] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:47:53,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:47:53,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:47:53,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158466231] [2022-03-20 07:47:53,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:47:53,314 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:47:53,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:47:53,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:47:53,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:47:53,315 INFO L87 Difference]: Start difference. First operand 214 states and 331 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 07:47:54,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:47:56,994 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:47:58,791 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:47:59,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:47:59,345 INFO L93 Difference]: Finished difference Result 314 states and 482 transitions. [2022-03-20 07:47:59,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:47:59,345 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 07:47:59,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:47:59,347 INFO L225 Difference]: With dead ends: 314 [2022-03-20 07:47:59,347 INFO L226 Difference]: Without dead ends: 314 [2022-03-20 07:47:59,347 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 07:47:59,348 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 145 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:47:59,348 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 364 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-03-20 07:47:59,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-03-20 07:47:59,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 214. [2022-03-20 07:47:59,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5502392344497609) internal successors, (324), 209 states have internal predecessors, (324), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:47:59,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 328 transitions. [2022-03-20 07:47:59,353 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 328 transitions. Word has length 68 [2022-03-20 07:47:59,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:47:59,354 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 328 transitions. [2022-03-20 07:47:59,354 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 07:47:59,354 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 328 transitions. [2022-03-20 07:47:59,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-20 07:47:59,355 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:47:59,356 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:47:59,356 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 07:47:59,356 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:47:59,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:47:59,357 INFO L85 PathProgramCache]: Analyzing trace with hash 416669672, now seen corresponding path program 1 times [2022-03-20 07:47:59,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:47:59,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102858465] [2022-03-20 07:47:59,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:47:59,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:47:59,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:59,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:47:59,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:47:59,480 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 07:47:59,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:47:59,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102858465] [2022-03-20 07:47:59,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102858465] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:47:59,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:47:59,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:47:59,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106234617] [2022-03-20 07:47:59,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:47:59,482 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:47:59,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:47:59,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:47:59,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:47:59,483 INFO L87 Difference]: Start difference. First operand 214 states and 328 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 07:48:02,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:02,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:48:02,822 INFO L93 Difference]: Finished difference Result 256 states and 388 transitions. [2022-03-20 07:48:02,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:48:02,822 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 07:48:02,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:48:02,824 INFO L225 Difference]: With dead ends: 256 [2022-03-20 07:48:02,824 INFO L226 Difference]: Without dead ends: 256 [2022-03-20 07:48:02,824 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 07:48:02,825 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 30 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:48:02,825 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 523 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-20 07:48:02,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-03-20 07:48:02,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 236. [2022-03-20 07:48:02,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 231 states have (on average 1.5497835497835497) internal successors, (358), 231 states have internal predecessors, (358), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:02,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 362 transitions. [2022-03-20 07:48:02,831 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 362 transitions. Word has length 68 [2022-03-20 07:48:02,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:48:02,831 INFO L478 AbstractCegarLoop]: Abstraction has 236 states and 362 transitions. [2022-03-20 07:48:02,831 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 07:48:02,831 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 362 transitions. [2022-03-20 07:48:02,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-03-20 07:48:02,832 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:48:02,832 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:48:02,832 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 07:48:02,833 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:48:02,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:48:02,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1437140192, now seen corresponding path program 1 times [2022-03-20 07:48:02,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:48:02,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874488903] [2022-03-20 07:48:02,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:48:02,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:48:02,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:02,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:48:02,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:02,942 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:48:02,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:48:02,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874488903] [2022-03-20 07:48:02,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874488903] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:48:02,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:48:02,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:48:02,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226921232] [2022-03-20 07:48:02,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:48:02,943 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:48:02,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:48:02,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:48:02,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:48:02,944 INFO L87 Difference]: Start difference. First operand 236 states and 362 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:03,969 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:05,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:48:05,948 INFO L93 Difference]: Finished difference Result 375 states and 581 transitions. [2022-03-20 07:48:05,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:48:05,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2022-03-20 07:48:05,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:48:05,950 INFO L225 Difference]: With dead ends: 375 [2022-03-20 07:48:05,951 INFO L226 Difference]: Without dead ends: 375 [2022-03-20 07:48:05,951 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 07:48:05,951 INFO L913 BasicCegarLoop]: 245 mSDtfsCounter, 144 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:48:05,952 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 604 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-20 07:48:05,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-03-20 07:48:05,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 252. [2022-03-20 07:48:05,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 247 states have (on average 1.534412955465587) internal successors, (379), 247 states have internal predecessors, (379), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:05,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 383 transitions. [2022-03-20 07:48:05,958 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 383 transitions. Word has length 81 [2022-03-20 07:48:05,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:48:05,959 INFO L478 AbstractCegarLoop]: Abstraction has 252 states and 383 transitions. [2022-03-20 07:48:05,959 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:05,959 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 383 transitions. [2022-03-20 07:48:05,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-20 07:48:05,960 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:48:05,960 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:48:05,960 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 07:48:05,960 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:48:05,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:48:05,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1133208978, now seen corresponding path program 1 times [2022-03-20 07:48:05,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:48:05,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804815773] [2022-03-20 07:48:05,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:48:05,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:48:06,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:06,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:48:06,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:06,088 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 07:48:06,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:48:06,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804815773] [2022-03-20 07:48:06,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804815773] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:48:06,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:48:06,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:48:06,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879874168] [2022-03-20 07:48:06,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:48:06,089 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:48:06,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:48:06,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:48:06,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:48:06,090 INFO L87 Difference]: Start difference. First operand 252 states and 383 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:08,289 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:09,376 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:09,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:48:09,800 INFO L93 Difference]: Finished difference Result 265 states and 398 transitions. [2022-03-20 07:48:09,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:48:09,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-03-20 07:48:09,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:48:09,802 INFO L225 Difference]: With dead ends: 265 [2022-03-20 07:48:09,802 INFO L226 Difference]: Without dead ends: 265 [2022-03-20 07:48:09,802 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 07:48:09,803 INFO L913 BasicCegarLoop]: 235 mSDtfsCounter, 19 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:48:09,803 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 590 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-20 07:48:09,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-03-20 07:48:09,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 252. [2022-03-20 07:48:09,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 247 states have (on average 1.5303643724696356) internal successors, (378), 247 states have internal predecessors, (378), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:09,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 382 transitions. [2022-03-20 07:48:09,809 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 382 transitions. Word has length 82 [2022-03-20 07:48:09,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:48:09,809 INFO L478 AbstractCegarLoop]: Abstraction has 252 states and 382 transitions. [2022-03-20 07:48:09,810 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:09,810 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 382 transitions. [2022-03-20 07:48:09,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-20 07:48:09,811 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:48:09,811 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:48:09,811 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 07:48:09,811 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:48:09,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:48:09,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1416323598, now seen corresponding path program 1 times [2022-03-20 07:48:09,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:48:09,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763106236] [2022-03-20 07:48:09,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:48:09,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:48:09,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:09,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:48:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:09,943 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:48:09,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:48:09,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763106236] [2022-03-20 07:48:09,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763106236] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:48:09,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:48:09,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:48:09,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355598107] [2022-03-20 07:48:09,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:48:09,945 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:48:09,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:48:09,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:48:09,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:48:09,946 INFO L87 Difference]: Start difference. First operand 252 states and 382 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:12,407 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 07:48:13,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:48:13,783 INFO L93 Difference]: Finished difference Result 352 states and 533 transitions. [2022-03-20 07:48:13,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:48:13,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-03-20 07:48:13,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:48:13,785 INFO L225 Difference]: With dead ends: 352 [2022-03-20 07:48:13,785 INFO L226 Difference]: Without dead ends: 352 [2022-03-20 07:48:13,785 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 07:48:13,786 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 143 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-20 07:48:13,786 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 364 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-03-20 07:48:13,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-03-20 07:48:13,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 252. [2022-03-20 07:48:13,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 247 states have (on average 1.5182186234817814) internal successors, (375), 247 states have internal predecessors, (375), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:13,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 379 transitions. [2022-03-20 07:48:13,792 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 379 transitions. Word has length 82 [2022-03-20 07:48:13,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:48:13,792 INFO L478 AbstractCegarLoop]: Abstraction has 252 states and 379 transitions. [2022-03-20 07:48:13,792 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:13,792 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 379 transitions. [2022-03-20 07:48:13,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-20 07:48:13,793 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:48:13,793 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:48:13,793 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 07:48:13,793 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:48:13,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:48:13,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1457894331, now seen corresponding path program 1 times [2022-03-20 07:48:13,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:48:13,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255714067] [2022-03-20 07:48:13,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:48:13,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:48:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:13,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:48:13,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:13,954 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-20 07:48:13,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:48:13,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255714067] [2022-03-20 07:48:13,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255714067] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:48:13,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:48:13,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 07:48:13,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795119572] [2022-03-20 07:48:13,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:48:13,955 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 07:48:13,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:48:13,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 07:48:13,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:48:13,956 INFO L87 Difference]: Start difference. First operand 252 states and 379 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:17,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:48:17,536 INFO L93 Difference]: Finished difference Result 261 states and 390 transitions. [2022-03-20 07:48:17,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 07:48:17,537 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-03-20 07:48:17,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:48:17,538 INFO L225 Difference]: With dead ends: 261 [2022-03-20 07:48:17,538 INFO L226 Difference]: Without dead ends: 261 [2022-03-20 07:48:17,538 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 07:48:17,539 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 3 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:48:17,539 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 657 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-20 07:48:17,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-03-20 07:48:17,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2022-03-20 07:48:17,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.5078125) internal successors, (386), 256 states have internal predecessors, (386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:17,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 390 transitions. [2022-03-20 07:48:17,544 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 390 transitions. Word has length 83 [2022-03-20 07:48:17,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:48:17,544 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 390 transitions. [2022-03-20 07:48:17,545 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:17,545 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 390 transitions. [2022-03-20 07:48:17,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 07:48:17,546 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:48:17,546 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:48:17,546 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 07:48:17,546 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:48:17,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:48:17,546 INFO L85 PathProgramCache]: Analyzing trace with hash -565644653, now seen corresponding path program 1 times [2022-03-20 07:48:17,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:48:17,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641725828] [2022-03-20 07:48:17,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:48:17,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:48:17,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:17,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:48:17,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:17,650 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:48:17,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:48:17,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641725828] [2022-03-20 07:48:17,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641725828] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:48:17,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:48:17,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:48:17,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391726127] [2022-03-20 07:48:17,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:48:17,651 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:48:17,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:48:17,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:48:17,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:48:17,652 INFO L87 Difference]: Start difference. First operand 261 states and 390 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:18,761 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:20,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:48:20,380 INFO L93 Difference]: Finished difference Result 360 states and 538 transitions. [2022-03-20 07:48:20,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:48:20,381 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-20 07:48:20,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:48:20,383 INFO L225 Difference]: With dead ends: 360 [2022-03-20 07:48:20,383 INFO L226 Difference]: Without dead ends: 360 [2022-03-20 07:48:20,383 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 07:48:20,383 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 145 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:48:20,384 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 366 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-20 07:48:20,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-03-20 07:48:20,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 261. [2022-03-20 07:48:20,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.4921875) internal successors, (382), 256 states have internal predecessors, (382), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:20,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 386 transitions. [2022-03-20 07:48:20,390 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 386 transitions. Word has length 84 [2022-03-20 07:48:20,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:48:20,390 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 386 transitions. [2022-03-20 07:48:20,390 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:20,390 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 386 transitions. [2022-03-20 07:48:20,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-20 07:48:20,391 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:48:20,391 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:48:20,391 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 07:48:20,391 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:48:20,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:48:20,392 INFO L85 PathProgramCache]: Analyzing trace with hash 681592199, now seen corresponding path program 1 times [2022-03-20 07:48:20,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:48:20,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829727741] [2022-03-20 07:48:20,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:48:20,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:48:20,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:20,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:48:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:20,513 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:48:20,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:48:20,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829727741] [2022-03-20 07:48:20,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829727741] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:48:20,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:48:20,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:48:20,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799128291] [2022-03-20 07:48:20,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:48:20,514 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:48:20,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:48:20,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:48:20,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:48:20,515 INFO L87 Difference]: Start difference. First operand 261 states and 386 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:22,307 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:24,323 WARN L534 Checker$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 07:48:26,347 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 07:48:26,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:48:26,784 INFO L93 Difference]: Finished difference Result 358 states and 530 transitions. [2022-03-20 07:48:26,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:48:26,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2022-03-20 07:48:26,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:48:26,788 INFO L225 Difference]: With dead ends: 358 [2022-03-20 07:48:26,789 INFO L226 Difference]: Without dead ends: 358 [2022-03-20 07:48:26,789 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 07:48:26,789 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 80 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 14 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:48:26,790 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 513 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 529 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-03-20 07:48:26,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2022-03-20 07:48:26,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 303. [2022-03-20 07:48:26,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 298 states have (on average 1.5100671140939597) internal successors, (450), 298 states have internal predecessors, (450), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:26,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 454 transitions. [2022-03-20 07:48:26,796 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 454 transitions. Word has length 90 [2022-03-20 07:48:26,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:48:26,796 INFO L478 AbstractCegarLoop]: Abstraction has 303 states and 454 transitions. [2022-03-20 07:48:26,796 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:26,796 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 454 transitions. [2022-03-20 07:48:26,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-20 07:48:26,797 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:48:26,797 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:48:26,798 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 07:48:26,798 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:48:26,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:48:26,798 INFO L85 PathProgramCache]: Analyzing trace with hash 805665446, now seen corresponding path program 1 times [2022-03-20 07:48:26,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:48:26,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368050407] [2022-03-20 07:48:26,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:48:26,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:48:26,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:26,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:48:26,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:26,921 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:48:26,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:48:26,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368050407] [2022-03-20 07:48:26,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368050407] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:48:26,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:48:26,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:48:26,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384260165] [2022-03-20 07:48:26,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:48:26,922 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:48:26,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:48:26,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:48:26,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:48:26,923 INFO L87 Difference]: Start difference. First operand 303 states and 454 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:28,075 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:29,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:31,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:48:31,277 INFO L93 Difference]: Finished difference Result 402 states and 605 transitions. [2022-03-20 07:48:31,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:48:31,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2022-03-20 07:48:31,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:48:31,279 INFO L225 Difference]: With dead ends: 402 [2022-03-20 07:48:31,280 INFO L226 Difference]: Without dead ends: 402 [2022-03-20 07:48:31,280 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 07:48:31,280 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 117 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:48:31,281 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 388 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-20 07:48:31,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-03-20 07:48:31,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 283. [2022-03-20 07:48:31,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5287769784172662) internal successors, (425), 278 states have internal predecessors, (425), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:31,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 429 transitions. [2022-03-20 07:48:31,287 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 429 transitions. Word has length 90 [2022-03-20 07:48:31,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:48:31,288 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 429 transitions. [2022-03-20 07:48:31,288 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:31,288 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 429 transitions. [2022-03-20 07:48:31,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-20 07:48:31,289 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:48:31,289 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:48:31,289 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 07:48:31,289 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:48:31,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:48:31,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1821101810, now seen corresponding path program 1 times [2022-03-20 07:48:31,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:48:31,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667894517] [2022-03-20 07:48:31,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:48:31,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:48:31,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:31,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:48:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:31,406 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 07:48:31,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:48:31,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667894517] [2022-03-20 07:48:31,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667894517] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:48:31,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:48:31,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:48:31,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373221795] [2022-03-20 07:48:31,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:48:31,407 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:48:31,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:48:31,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:48:31,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:48:31,407 INFO L87 Difference]: Start difference. First operand 283 states and 429 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:33,867 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:35,423 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:36,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:37,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:48:37,173 INFO L93 Difference]: Finished difference Result 377 states and 568 transitions. [2022-03-20 07:48:37,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:48:37,174 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-03-20 07:48:37,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:48:37,176 INFO L225 Difference]: With dead ends: 377 [2022-03-20 07:48:37,176 INFO L226 Difference]: Without dead ends: 377 [2022-03-20 07:48:37,176 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 07:48:37,176 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 86 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:48:37,177 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 519 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-03-20 07:48:37,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-03-20 07:48:37,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 317. [2022-03-20 07:48:37,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 312 states have (on average 1.5320512820512822) internal successors, (478), 312 states have internal predecessors, (478), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:37,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 482 transitions. [2022-03-20 07:48:37,183 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 482 transitions. Word has length 118 [2022-03-20 07:48:37,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:48:37,184 INFO L478 AbstractCegarLoop]: Abstraction has 317 states and 482 transitions. [2022-03-20 07:48:37,184 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:37,184 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 482 transitions. [2022-03-20 07:48:37,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-20 07:48:37,185 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:48:37,185 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:48:37,185 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 07:48:37,186 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:48:37,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:48:37,186 INFO L85 PathProgramCache]: Analyzing trace with hash -866872915, now seen corresponding path program 1 times [2022-03-20 07:48:37,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:48:37,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213515870] [2022-03-20 07:48:37,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:48:37,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:48:37,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:37,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:48:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:37,313 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-20 07:48:37,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:48:37,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213515870] [2022-03-20 07:48:37,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213515870] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:48:37,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:48:37,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:48:37,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138892206] [2022-03-20 07:48:37,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:48:37,314 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:48:37,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:48:37,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:48:37,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:48:37,315 INFO L87 Difference]: Start difference. First operand 317 states and 482 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:39,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:40,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:48:40,095 INFO L93 Difference]: Finished difference Result 362 states and 544 transitions. [2022-03-20 07:48:40,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:48:40,096 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-03-20 07:48:40,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:48:40,097 INFO L225 Difference]: With dead ends: 362 [2022-03-20 07:48:40,097 INFO L226 Difference]: Without dead ends: 362 [2022-03-20 07:48:40,098 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 07:48:40,098 INFO L913 BasicCegarLoop]: 247 mSDtfsCounter, 32 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-20 07:48:40,098 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 613 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-20 07:48:40,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-03-20 07:48:40,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 341. [2022-03-20 07:48:40,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 336 states have (on average 1.5267857142857142) internal successors, (513), 336 states have internal predecessors, (513), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:40,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 517 transitions. [2022-03-20 07:48:40,105 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 517 transitions. Word has length 118 [2022-03-20 07:48:40,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:48:40,106 INFO L478 AbstractCegarLoop]: Abstraction has 341 states and 517 transitions. [2022-03-20 07:48:40,106 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:40,106 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 517 transitions. [2022-03-20 07:48:40,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-20 07:48:40,107 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:48:40,107 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:48:40,108 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 07:48:40,108 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:48:40,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:48:40,108 INFO L85 PathProgramCache]: Analyzing trace with hash 590170977, now seen corresponding path program 1 times [2022-03-20 07:48:40,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:48:40,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535728331] [2022-03-20 07:48:40,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:48:40,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:48:40,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:40,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:48:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:40,225 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 07:48:40,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:48:40,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535728331] [2022-03-20 07:48:40,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535728331] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:48:40,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:48:40,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:48:40,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245442238] [2022-03-20 07:48:40,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:48:40,227 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:48:40,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:48:40,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:48:40,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:48:40,227 INFO L87 Difference]: Start difference. First operand 341 states and 517 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:42,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:48:42,476 INFO L93 Difference]: Finished difference Result 348 states and 526 transitions. [2022-03-20 07:48:42,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:48:42,477 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-20 07:48:42,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:48:42,478 INFO L225 Difference]: With dead ends: 348 [2022-03-20 07:48:42,478 INFO L226 Difference]: Without dead ends: 348 [2022-03-20 07:48:42,478 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 07:48:42,479 INFO L913 BasicCegarLoop]: 212 mSDtfsCounter, 30 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:48:42,479 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 543 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 07:48:42,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-03-20 07:48:42,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 341. [2022-03-20 07:48:42,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 336 states have (on average 1.5238095238095237) internal successors, (512), 336 states have internal predecessors, (512), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:42,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 516 transitions. [2022-03-20 07:48:42,485 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 516 transitions. Word has length 123 [2022-03-20 07:48:42,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:48:42,486 INFO L478 AbstractCegarLoop]: Abstraction has 341 states and 516 transitions. [2022-03-20 07:48:42,486 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:42,486 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 516 transitions. [2022-03-20 07:48:42,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-20 07:48:42,487 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:48:42,487 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:48:42,487 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 07:48:42,487 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:48:42,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:48:42,488 INFO L85 PathProgramCache]: Analyzing trace with hash 52353177, now seen corresponding path program 1 times [2022-03-20 07:48:42,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:48:42,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212304521] [2022-03-20 07:48:42,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:48:42,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:48:42,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:42,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:48:42,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:42,619 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:48:42,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:48:42,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212304521] [2022-03-20 07:48:42,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212304521] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:48:42,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:48:42,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:48:42,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609718544] [2022-03-20 07:48:42,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:48:42,620 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:48:42,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:48:42,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:48:42,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:48:42,621 INFO L87 Difference]: Start difference. First operand 341 states and 516 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:44,331 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:46,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:48:46,381 INFO L93 Difference]: Finished difference Result 458 states and 688 transitions. [2022-03-20 07:48:46,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:48:46,382 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-20 07:48:46,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:48:46,384 INFO L225 Difference]: With dead ends: 458 [2022-03-20 07:48:46,384 INFO L226 Difference]: Without dead ends: 458 [2022-03-20 07:48:46,384 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 07:48:46,385 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 119 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:48:46,385 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 364 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-20 07:48:46,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-03-20 07:48:46,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 378. [2022-03-20 07:48:46,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 373 states have (on average 1.5335120643431635) internal successors, (572), 373 states have internal predecessors, (572), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:46,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 576 transitions. [2022-03-20 07:48:46,392 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 576 transitions. Word has length 123 [2022-03-20 07:48:46,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:48:46,392 INFO L478 AbstractCegarLoop]: Abstraction has 378 states and 576 transitions. [2022-03-20 07:48:46,392 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:46,392 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 576 transitions. [2022-03-20 07:48:46,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-20 07:48:46,393 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:48:46,393 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:48:46,394 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 07:48:46,394 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:48:46,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:48:46,394 INFO L85 PathProgramCache]: Analyzing trace with hash -857753857, now seen corresponding path program 1 times [2022-03-20 07:48:46,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:48:46,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878157021] [2022-03-20 07:48:46,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:48:46,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:48:46,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:46,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:48:46,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:46,512 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:48:46,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:48:46,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878157021] [2022-03-20 07:48:46,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878157021] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:48:46,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:48:46,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:48:46,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382234857] [2022-03-20 07:48:46,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:48:46,513 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:48:46,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:48:46,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:48:46,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:48:46,513 INFO L87 Difference]: Start difference. First operand 378 states and 576 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:49,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:48:49,724 INFO L93 Difference]: Finished difference Result 436 states and 658 transitions. [2022-03-20 07:48:49,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:48:49,724 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-03-20 07:48:49,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:48:49,727 INFO L225 Difference]: With dead ends: 436 [2022-03-20 07:48:49,727 INFO L226 Difference]: Without dead ends: 436 [2022-03-20 07:48:49,727 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 07:48:49,732 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 77 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:48:49,732 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 495 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-20 07:48:49,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-03-20 07:48:49,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 384. [2022-03-20 07:48:49,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 379 states have (on average 1.5356200527704484) internal successors, (582), 379 states have internal predecessors, (582), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:49,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 586 transitions. [2022-03-20 07:48:49,741 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 586 transitions. Word has length 124 [2022-03-20 07:48:49,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:48:49,741 INFO L478 AbstractCegarLoop]: Abstraction has 384 states and 586 transitions. [2022-03-20 07:48:49,741 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:49,742 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 586 transitions. [2022-03-20 07:48:49,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-20 07:48:49,743 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:48:49,743 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:48:49,743 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 07:48:49,743 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:48:49,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:48:49,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1073496446, now seen corresponding path program 1 times [2022-03-20 07:48:49,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:48:49,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102964537] [2022-03-20 07:48:49,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:48:49,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:48:49,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:49,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:48:49,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:49,874 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:48:49,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:48:49,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102964537] [2022-03-20 07:48:49,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102964537] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:48:49,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:48:49,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:48:49,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673004842] [2022-03-20 07:48:49,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:48:49,876 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:48:49,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:48:49,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:48:49,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:48:49,876 INFO L87 Difference]: Start difference. First operand 384 states and 586 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:52,297 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:53,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:48:53,279 INFO L93 Difference]: Finished difference Result 427 states and 642 transitions. [2022-03-20 07:48:53,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:48:53,280 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-03-20 07:48:53,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:48:53,281 INFO L225 Difference]: With dead ends: 427 [2022-03-20 07:48:53,282 INFO L226 Difference]: Without dead ends: 427 [2022-03-20 07:48:53,282 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:48:53,282 INFO L913 BasicCegarLoop]: 190 mSDtfsCounter, 59 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:48:53,282 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 501 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-20 07:48:53,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2022-03-20 07:48:53,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 387. [2022-03-20 07:48:53,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.531413612565445) internal successors, (585), 382 states have internal predecessors, (585), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:53,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 589 transitions. [2022-03-20 07:48:53,289 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 589 transitions. Word has length 132 [2022-03-20 07:48:53,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:48:53,290 INFO L478 AbstractCegarLoop]: Abstraction has 387 states and 589 transitions. [2022-03-20 07:48:53,290 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:53,290 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 589 transitions. [2022-03-20 07:48:53,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-03-20 07:48:53,291 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:48:53,291 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:48:53,291 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 07:48:53,291 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:48:53,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:48:53,292 INFO L85 PathProgramCache]: Analyzing trace with hash 641664460, now seen corresponding path program 1 times [2022-03-20 07:48:53,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:48:53,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433995242] [2022-03-20 07:48:53,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:48:53,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:48:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:53,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:48:53,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:53,408 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 07:48:53,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:48:53,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433995242] [2022-03-20 07:48:53,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433995242] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:48:53,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:48:53,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:48:53,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784004376] [2022-03-20 07:48:53,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:48:53,409 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:48:53,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:48:53,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:48:53,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:48:53,410 INFO L87 Difference]: Start difference. First operand 387 states and 589 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:55,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:48:56,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:48:56,986 INFO L93 Difference]: Finished difference Result 427 states and 641 transitions. [2022-03-20 07:48:56,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:48:56,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 140 [2022-03-20 07:48:56,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:48:56,989 INFO L225 Difference]: With dead ends: 427 [2022-03-20 07:48:56,989 INFO L226 Difference]: Without dead ends: 427 [2022-03-20 07:48:56,989 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 07:48:56,989 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 75 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:48:56,990 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 513 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-20 07:48:56,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2022-03-20 07:48:56,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 387. [2022-03-20 07:48:56,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.5287958115183247) internal successors, (584), 382 states have internal predecessors, (584), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:56,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 588 transitions. [2022-03-20 07:48:56,997 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 588 transitions. Word has length 140 [2022-03-20 07:48:56,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:48:56,997 INFO L478 AbstractCegarLoop]: Abstraction has 387 states and 588 transitions. [2022-03-20 07:48:56,997 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:56,997 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 588 transitions. [2022-03-20 07:48:56,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-03-20 07:48:56,998 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:48:56,998 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:48:56,999 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 07:48:56,999 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:48:56,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:48:56,999 INFO L85 PathProgramCache]: Analyzing trace with hash 627414315, now seen corresponding path program 1 times [2022-03-20 07:48:56,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:48:56,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425805728] [2022-03-20 07:48:56,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:48:57,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:48:57,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:57,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:48:57,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:48:57,124 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:48:57,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:48:57,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425805728] [2022-03-20 07:48:57,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425805728] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:48:57,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:48:57,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:48:57,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697311979] [2022-03-20 07:48:57,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:48:57,126 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:48:57,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:48:57,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:48:57,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:48:57,126 INFO L87 Difference]: Start difference. First operand 387 states and 588 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:48:59,470 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 07:49:00,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:49:00,916 INFO L93 Difference]: Finished difference Result 540 states and 819 transitions. [2022-03-20 07:49:00,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:49:00,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 140 [2022-03-20 07:49:00,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:49:00,919 INFO L225 Difference]: With dead ends: 540 [2022-03-20 07:49:00,919 INFO L226 Difference]: Without dead ends: 540 [2022-03-20 07:49:00,919 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 07:49:00,919 INFO L913 BasicCegarLoop]: 143 mSDtfsCounter, 123 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-20 07:49:00,920 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 400 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-03-20 07:49:00,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2022-03-20 07:49:00,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 451. [2022-03-20 07:49:00,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 446 states have (on average 1.5358744394618835) internal successors, (685), 446 states have internal predecessors, (685), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:00,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 689 transitions. [2022-03-20 07:49:00,928 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 689 transitions. Word has length 140 [2022-03-20 07:49:00,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:49:00,928 INFO L478 AbstractCegarLoop]: Abstraction has 451 states and 689 transitions. [2022-03-20 07:49:00,928 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:00,928 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 689 transitions. [2022-03-20 07:49:00,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-20 07:49:00,929 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:49:00,929 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:49:00,930 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-20 07:49:00,930 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:49:00,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:49:00,930 INFO L85 PathProgramCache]: Analyzing trace with hash -946684190, now seen corresponding path program 1 times [2022-03-20 07:49:00,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:49:00,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465103121] [2022-03-20 07:49:00,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:49:00,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:49:01,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:01,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:49:01,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:01,067 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-20 07:49:01,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:49:01,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465103121] [2022-03-20 07:49:01,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465103121] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:49:01,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:49:01,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:49:01,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981675443] [2022-03-20 07:49:01,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:49:01,068 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:49:01,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:49:01,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:49:01,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:49:01,068 INFO L87 Difference]: Start difference. First operand 451 states and 689 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:02,415 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:03,825 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:05,510 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:05,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:49:05,945 INFO L93 Difference]: Finished difference Result 518 states and 777 transitions. [2022-03-20 07:49:05,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:49:05,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-03-20 07:49:05,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:49:05,947 INFO L225 Difference]: With dead ends: 518 [2022-03-20 07:49:05,947 INFO L226 Difference]: Without dead ends: 518 [2022-03-20 07:49:05,947 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 07:49:05,947 INFO L913 BasicCegarLoop]: 147 mSDtfsCounter, 139 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:49:05,948 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 408 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-03-20 07:49:05,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2022-03-20 07:49:05,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 451. [2022-03-20 07:49:05,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 446 states have (on average 1.5179372197309418) internal successors, (677), 446 states have internal predecessors, (677), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:05,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 681 transitions. [2022-03-20 07:49:05,955 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 681 transitions. Word has length 145 [2022-03-20 07:49:05,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:49:05,956 INFO L478 AbstractCegarLoop]: Abstraction has 451 states and 681 transitions. [2022-03-20 07:49:05,956 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:05,956 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 681 transitions. [2022-03-20 07:49:05,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-20 07:49:05,957 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:49:05,957 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:49:05,957 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-20 07:49:05,957 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:49:05,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:49:05,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1964442410, now seen corresponding path program 1 times [2022-03-20 07:49:05,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:49:05,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051256745] [2022-03-20 07:49:05,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:49:05,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:49:06,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:06,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:49:06,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:06,082 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 07:49:06,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:49:06,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051256745] [2022-03-20 07:49:06,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051256745] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:49:06,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:49:06,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:49:06,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050755844] [2022-03-20 07:49:06,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:49:06,083 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:49:06,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:49:06,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:49:06,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:49:06,084 INFO L87 Difference]: Start difference. First operand 451 states and 681 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:07,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:08,468 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:10,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:49:10,189 INFO L93 Difference]: Finished difference Result 558 states and 834 transitions. [2022-03-20 07:49:10,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:49:10,190 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-03-20 07:49:10,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:49:10,192 INFO L225 Difference]: With dead ends: 558 [2022-03-20 07:49:10,192 INFO L226 Difference]: Without dead ends: 558 [2022-03-20 07:49:10,192 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 07:49:10,193 INFO L913 BasicCegarLoop]: 147 mSDtfsCounter, 119 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-20 07:49:10,193 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 408 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-03-20 07:49:10,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-03-20 07:49:10,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 481. [2022-03-20 07:49:10,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 476 states have (on average 1.5084033613445378) internal successors, (718), 476 states have internal predecessors, (718), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:10,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 722 transitions. [2022-03-20 07:49:10,219 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 722 transitions. Word has length 145 [2022-03-20 07:49:10,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:49:10,219 INFO L478 AbstractCegarLoop]: Abstraction has 481 states and 722 transitions. [2022-03-20 07:49:10,220 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:10,220 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 722 transitions. [2022-03-20 07:49:10,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-20 07:49:10,221 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:49:10,221 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:49:10,221 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-20 07:49:10,221 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:49:10,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:49:10,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1579019717, now seen corresponding path program 1 times [2022-03-20 07:49:10,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:49:10,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6332318] [2022-03-20 07:49:10,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:49:10,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:49:10,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:10,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:49:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:10,349 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 07:49:10,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:49:10,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6332318] [2022-03-20 07:49:10,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6332318] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:49:10,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:49:10,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:49:10,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788484769] [2022-03-20 07:49:10,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:49:10,351 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:49:10,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:49:10,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:49:10,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:49:10,351 INFO L87 Difference]: Start difference. First operand 481 states and 722 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:12,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:13,188 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:14,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:49:14,276 INFO L93 Difference]: Finished difference Result 548 states and 812 transitions. [2022-03-20 07:49:14,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:49:14,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-20 07:49:14,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:49:14,278 INFO L225 Difference]: With dead ends: 548 [2022-03-20 07:49:14,278 INFO L226 Difference]: Without dead ends: 548 [2022-03-20 07:49:14,278 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 07:49:14,279 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 118 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:49:14,279 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 384 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-03-20 07:49:14,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-03-20 07:49:14,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 481. [2022-03-20 07:49:14,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 476 states have (on average 1.495798319327731) internal successors, (712), 476 states have internal predecessors, (712), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:14,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 716 transitions. [2022-03-20 07:49:14,287 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 716 transitions. Word has length 146 [2022-03-20 07:49:14,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:49:14,287 INFO L478 AbstractCegarLoop]: Abstraction has 481 states and 716 transitions. [2022-03-20 07:49:14,287 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:14,287 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 716 transitions. [2022-03-20 07:49:14,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-20 07:49:14,289 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:49:14,289 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:49:14,289 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-20 07:49:14,289 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:49:14,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:49:14,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1397412188, now seen corresponding path program 1 times [2022-03-20 07:49:14,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:49:14,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466353543] [2022-03-20 07:49:14,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:49:14,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:49:14,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:14,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:49:14,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:14,415 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:49:14,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:49:14,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466353543] [2022-03-20 07:49:14,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466353543] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:49:14,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:49:14,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:49:14,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071300989] [2022-03-20 07:49:14,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:49:14,416 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:49:14,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:49:14,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:49:14,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:49:14,417 INFO L87 Difference]: Start difference. First operand 481 states and 716 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:17,249 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:18,949 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:19,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:49:19,359 INFO L93 Difference]: Finished difference Result 548 states and 810 transitions. [2022-03-20 07:49:19,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:49:19,359 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-20 07:49:19,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:49:19,361 INFO L225 Difference]: With dead ends: 548 [2022-03-20 07:49:19,361 INFO L226 Difference]: Without dead ends: 548 [2022-03-20 07:49:19,361 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 07:49:19,361 INFO L913 BasicCegarLoop]: 147 mSDtfsCounter, 110 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:49:19,362 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 408 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 479 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-03-20 07:49:19,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-03-20 07:49:19,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 481. [2022-03-20 07:49:19,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 476 states have (on average 1.4915966386554622) internal successors, (710), 476 states have internal predecessors, (710), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:19,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 714 transitions. [2022-03-20 07:49:19,369 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 714 transitions. Word has length 146 [2022-03-20 07:49:19,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:49:19,369 INFO L478 AbstractCegarLoop]: Abstraction has 481 states and 714 transitions. [2022-03-20 07:49:19,370 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:19,370 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 714 transitions. [2022-03-20 07:49:19,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-20 07:49:19,371 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:49:19,371 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:49:19,371 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-20 07:49:19,371 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:49:19,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:49:19,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1522661907, now seen corresponding path program 1 times [2022-03-20 07:49:19,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:49:19,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050423436] [2022-03-20 07:49:19,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:49:19,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:49:19,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:19,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:49:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:19,515 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 07:49:19,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:49:19,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050423436] [2022-03-20 07:49:19,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050423436] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:49:19,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:49:19,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:49:19,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23692220] [2022-03-20 07:49:19,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:49:19,516 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:49:19,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:49:19,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:49:19,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:49:19,517 INFO L87 Difference]: Start difference. First operand 481 states and 714 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 07:49:20,839 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:23,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:49:23,191 INFO L93 Difference]: Finished difference Result 509 states and 752 transitions. [2022-03-20 07:49:23,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:49:23,191 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 148 [2022-03-20 07:49:23,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:49:23,192 INFO L225 Difference]: With dead ends: 509 [2022-03-20 07:49:23,192 INFO L226 Difference]: Without dead ends: 509 [2022-03-20 07:49:23,193 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 07:49:23,193 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 60 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:49:23,193 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 529 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-20 07:49:23,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2022-03-20 07:49:23,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 481. [2022-03-20 07:49:23,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 476 states have (on average 1.4894957983193278) internal successors, (709), 476 states have internal predecessors, (709), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:23,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 713 transitions. [2022-03-20 07:49:23,202 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 713 transitions. Word has length 148 [2022-03-20 07:49:23,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:49:23,202 INFO L478 AbstractCegarLoop]: Abstraction has 481 states and 713 transitions. [2022-03-20 07:49:23,202 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 07:49:23,202 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 713 transitions. [2022-03-20 07:49:23,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-03-20 07:49:23,203 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:49:23,204 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:49:23,204 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-20 07:49:23,204 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:49:23,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:49:23,204 INFO L85 PathProgramCache]: Analyzing trace with hash -109907680, now seen corresponding path program 1 times [2022-03-20 07:49:23,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:49:23,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177508732] [2022-03-20 07:49:23,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:49:23,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:49:23,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:23,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:49:23,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:23,326 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-20 07:49:23,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:49:23,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177508732] [2022-03-20 07:49:23,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177508732] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:49:23,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:49:23,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:49:23,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059817957] [2022-03-20 07:49:23,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:49:23,328 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:49:23,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:49:23,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:49:23,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:49:23,328 INFO L87 Difference]: Start difference. First operand 481 states and 713 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:24,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:27,014 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 07:49:27,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:49:27,953 INFO L93 Difference]: Finished difference Result 548 states and 802 transitions. [2022-03-20 07:49:27,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:49:27,954 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-03-20 07:49:27,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:49:27,955 INFO L225 Difference]: With dead ends: 548 [2022-03-20 07:49:27,955 INFO L226 Difference]: Without dead ends: 548 [2022-03-20 07:49:27,956 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 07:49:27,956 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 118 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:49:27,956 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 384 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-03-20 07:49:27,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-03-20 07:49:27,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 481. [2022-03-20 07:49:27,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 476 states have (on average 1.4747899159663866) internal successors, (702), 476 states have internal predecessors, (702), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:27,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 706 transitions. [2022-03-20 07:49:27,964 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 706 transitions. Word has length 149 [2022-03-20 07:49:27,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:49:27,964 INFO L478 AbstractCegarLoop]: Abstraction has 481 states and 706 transitions. [2022-03-20 07:49:27,964 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:27,964 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 706 transitions. [2022-03-20 07:49:27,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-03-20 07:49:27,965 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:49:27,965 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:49:27,966 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-20 07:49:27,966 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:49:27,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:49:27,966 INFO L85 PathProgramCache]: Analyzing trace with hash 2073111519, now seen corresponding path program 1 times [2022-03-20 07:49:27,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:49:27,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767866649] [2022-03-20 07:49:27,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:49:27,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:49:28,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:28,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:49:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:28,096 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-20 07:49:28,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:49:28,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767866649] [2022-03-20 07:49:28,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767866649] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:49:28,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:49:28,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:49:28,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018643728] [2022-03-20 07:49:28,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:49:28,097 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:49:28,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:49:28,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:49:28,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:49:28,098 INFO L87 Difference]: Start difference. First operand 481 states and 706 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:29,790 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:30,995 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:32,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:49:32,022 INFO L93 Difference]: Finished difference Result 927 states and 1359 transitions. [2022-03-20 07:49:32,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:49:32,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-03-20 07:49:32,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:49:32,025 INFO L225 Difference]: With dead ends: 927 [2022-03-20 07:49:32,025 INFO L226 Difference]: Without dead ends: 927 [2022-03-20 07:49:32,025 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 07:49:32,026 INFO L913 BasicCegarLoop]: 253 mSDtfsCounter, 133 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:49:32,026 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 447 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-03-20 07:49:32,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2022-03-20 07:49:32,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 925. [2022-03-20 07:49:32,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 920 states have (on average 1.4717391304347827) internal successors, (1354), 920 states have internal predecessors, (1354), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:32,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1358 transitions. [2022-03-20 07:49:32,039 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1358 transitions. Word has length 154 [2022-03-20 07:49:32,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:49:32,039 INFO L478 AbstractCegarLoop]: Abstraction has 925 states and 1358 transitions. [2022-03-20 07:49:32,039 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:32,040 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1358 transitions. [2022-03-20 07:49:32,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-03-20 07:49:32,042 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:49:32,042 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:49:32,042 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-20 07:49:32,042 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:49:32,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:49:32,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1086528830, now seen corresponding path program 1 times [2022-03-20 07:49:32,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:49:32,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53767566] [2022-03-20 07:49:32,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:49:32,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:49:32,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:32,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:49:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:32,154 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-03-20 07:49:32,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:49:32,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53767566] [2022-03-20 07:49:32,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53767566] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:49:32,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:49:32,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:49:32,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581032701] [2022-03-20 07:49:32,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:49:32,155 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:49:32,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:49:32,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:49:32,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:49:32,155 INFO L87 Difference]: Start difference. First operand 925 states and 1358 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:34,092 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:35,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:49:35,026 INFO L93 Difference]: Finished difference Result 952 states and 1393 transitions. [2022-03-20 07:49:35,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:49:35,026 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-03-20 07:49:35,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:49:35,029 INFO L225 Difference]: With dead ends: 952 [2022-03-20 07:49:35,029 INFO L226 Difference]: Without dead ends: 952 [2022-03-20 07:49:35,029 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:49:35,029 INFO L913 BasicCegarLoop]: 229 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:49:35,030 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 423 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-20 07:49:35,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2022-03-20 07:49:35,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 952. [2022-03-20 07:49:35,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 947 states have (on average 1.4667370644139388) internal successors, (1389), 947 states have internal predecessors, (1389), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:35,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1393 transitions. [2022-03-20 07:49:35,043 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1393 transitions. Word has length 154 [2022-03-20 07:49:35,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:49:35,043 INFO L478 AbstractCegarLoop]: Abstraction has 952 states and 1393 transitions. [2022-03-20 07:49:35,043 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:35,043 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1393 transitions. [2022-03-20 07:49:35,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-03-20 07:49:35,045 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:49:35,045 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:49:35,046 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-20 07:49:35,046 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:49:35,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:49:35,046 INFO L85 PathProgramCache]: Analyzing trace with hash 794143005, now seen corresponding path program 1 times [2022-03-20 07:49:35,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:49:35,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880621174] [2022-03-20 07:49:35,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:49:35,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:49:35,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:35,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:49:35,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:35,180 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-03-20 07:49:35,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:49:35,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880621174] [2022-03-20 07:49:35,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880621174] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:49:35,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:49:35,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:49:35,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021053081] [2022-03-20 07:49:35,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:49:35,181 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:49:35,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:49:35,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:49:35,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:49:35,181 INFO L87 Difference]: Start difference. First operand 952 states and 1393 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:37,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:49:37,067 INFO L93 Difference]: Finished difference Result 954 states and 1395 transitions. [2022-03-20 07:49:37,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:49:37,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-03-20 07:49:37,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:49:37,070 INFO L225 Difference]: With dead ends: 954 [2022-03-20 07:49:37,070 INFO L226 Difference]: Without dead ends: 954 [2022-03-20 07:49:37,070 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 07:49:37,071 INFO L913 BasicCegarLoop]: 217 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-20 07:49:37,071 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 402 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-20 07:49:37,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2022-03-20 07:49:37,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 954. [2022-03-20 07:49:37,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 949 states have (on average 1.4657534246575343) internal successors, (1391), 949 states have internal predecessors, (1391), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:37,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1395 transitions. [2022-03-20 07:49:37,084 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1395 transitions. Word has length 154 [2022-03-20 07:49:37,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:49:37,085 INFO L478 AbstractCegarLoop]: Abstraction has 954 states and 1395 transitions. [2022-03-20 07:49:37,085 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:37,085 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1395 transitions. [2022-03-20 07:49:37,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-03-20 07:49:37,087 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:49:37,087 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:49:37,087 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-20 07:49:37,087 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:49:37,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:49:37,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1349201162, now seen corresponding path program 1 times [2022-03-20 07:49:37,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:49:37,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513229761] [2022-03-20 07:49:37,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:49:37,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:49:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:37,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:49:37,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:37,209 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-20 07:49:37,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:49:37,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513229761] [2022-03-20 07:49:37,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513229761] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:49:37,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:49:37,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:49:37,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558931001] [2022-03-20 07:49:37,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:49:37,210 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:49:37,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:49:37,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:49:37,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:49:37,211 INFO L87 Difference]: Start difference. First operand 954 states and 1395 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:39,786 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:40,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:49:40,190 INFO L93 Difference]: Finished difference Result 995 states and 1444 transitions. [2022-03-20 07:49:40,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:49:40,190 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-03-20 07:49:40,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:49:40,193 INFO L225 Difference]: With dead ends: 995 [2022-03-20 07:49:40,194 INFO L226 Difference]: Without dead ends: 995 [2022-03-20 07:49:40,194 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 07:49:40,194 INFO L913 BasicCegarLoop]: 212 mSDtfsCounter, 42 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:49:40,194 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 545 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-20 07:49:40,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2022-03-20 07:49:40,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 954. [2022-03-20 07:49:40,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 949 states have (on average 1.463645943097998) internal successors, (1389), 949 states have internal predecessors, (1389), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:40,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1393 transitions. [2022-03-20 07:49:40,207 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1393 transitions. Word has length 155 [2022-03-20 07:49:40,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:49:40,208 INFO L478 AbstractCegarLoop]: Abstraction has 954 states and 1393 transitions. [2022-03-20 07:49:40,208 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:40,208 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1393 transitions. [2022-03-20 07:49:40,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-03-20 07:49:40,210 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:49:40,210 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:49:40,210 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-20 07:49:40,210 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:49:40,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:49:40,211 INFO L85 PathProgramCache]: Analyzing trace with hash 753577337, now seen corresponding path program 1 times [2022-03-20 07:49:40,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:49:40,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245713344] [2022-03-20 07:49:40,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:49:40,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:49:40,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:40,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:49:40,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:40,373 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-20 07:49:40,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:49:40,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245713344] [2022-03-20 07:49:40,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245713344] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:49:40,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:49:40,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:49:40,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141833263] [2022-03-20 07:49:40,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:49:40,375 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:49:40,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:49:40,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:49:40,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:49:40,376 INFO L87 Difference]: Start difference. First operand 954 states and 1393 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:42,714 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 07:49:44,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:49:44,577 INFO L93 Difference]: Finished difference Result 991 states and 1438 transitions. [2022-03-20 07:49:44,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:49:44,578 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2022-03-20 07:49:44,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:49:44,580 INFO L225 Difference]: With dead ends: 991 [2022-03-20 07:49:44,580 INFO L226 Difference]: Without dead ends: 991 [2022-03-20 07:49:44,580 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 07:49:44,581 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 39 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:49:44,581 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 547 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-20 07:49:44,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2022-03-20 07:49:44,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 954. [2022-03-20 07:49:44,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 949 states have (on average 1.4615384615384615) internal successors, (1387), 949 states have internal predecessors, (1387), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:44,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1391 transitions. [2022-03-20 07:49:44,594 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1391 transitions. Word has length 156 [2022-03-20 07:49:44,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:49:44,594 INFO L478 AbstractCegarLoop]: Abstraction has 954 states and 1391 transitions. [2022-03-20 07:49:44,594 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:44,594 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1391 transitions. [2022-03-20 07:49:44,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-03-20 07:49:44,596 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:49:44,596 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:49:44,597 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-20 07:49:44,597 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:49:44,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:49:44,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1839212727, now seen corresponding path program 1 times [2022-03-20 07:49:44,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:49:44,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291896715] [2022-03-20 07:49:44,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:49:44,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:49:44,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:44,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:49:44,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:44,719 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-03-20 07:49:44,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:49:44,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291896715] [2022-03-20 07:49:44,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291896715] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:49:44,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:49:44,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:49:44,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656017525] [2022-03-20 07:49:44,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:49:44,720 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:49:44,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:49:44,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:49:44,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:49:44,721 INFO L87 Difference]: Start difference. First operand 954 states and 1391 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:47,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:48,208 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:48,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:49:48,566 INFO L93 Difference]: Finished difference Result 1033 states and 1502 transitions. [2022-03-20 07:49:48,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:49:48,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-03-20 07:49:48,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:49:48,569 INFO L225 Difference]: With dead ends: 1033 [2022-03-20 07:49:48,569 INFO L226 Difference]: Without dead ends: 1033 [2022-03-20 07:49:48,569 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 07:49:48,570 INFO L913 BasicCegarLoop]: 243 mSDtfsCounter, 28 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-20 07:49:48,570 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 605 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-03-20 07:49:48,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2022-03-20 07:49:48,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 1006. [2022-03-20 07:49:48,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 1001 states have (on average 1.4615384615384615) internal successors, (1463), 1001 states have internal predecessors, (1463), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:48,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1467 transitions. [2022-03-20 07:49:48,582 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1467 transitions. Word has length 157 [2022-03-20 07:49:48,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:49:48,583 INFO L478 AbstractCegarLoop]: Abstraction has 1006 states and 1467 transitions. [2022-03-20 07:49:48,583 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:48,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1467 transitions. [2022-03-20 07:49:48,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-03-20 07:49:48,585 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:49:48,585 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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 07:49:48,585 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-20 07:49:48,585 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:49:48,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:49:48,586 INFO L85 PathProgramCache]: Analyzing trace with hash 395348402, now seen corresponding path program 1 times [2022-03-20 07:49:48,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:49:48,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085520179] [2022-03-20 07:49:48,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:49:48,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:49:48,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:48,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:49:48,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:48,744 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-20 07:49:48,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:49:48,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085520179] [2022-03-20 07:49:48,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085520179] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:49:48,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:49:48,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:49:48,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113836272] [2022-03-20 07:49:48,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:49:48,745 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:49:48,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:49:48,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:49:48,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:49:48,745 INFO L87 Difference]: Start difference. First operand 1006 states and 1467 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:51,435 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:52,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:49:52,782 INFO L93 Difference]: Finished difference Result 1043 states and 1512 transitions. [2022-03-20 07:49:52,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:49:52,782 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 163 [2022-03-20 07:49:52,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:49:52,785 INFO L225 Difference]: With dead ends: 1043 [2022-03-20 07:49:52,785 INFO L226 Difference]: Without dead ends: 1043 [2022-03-20 07:49:52,785 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 07:49:52,786 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 48 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:49:52,787 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 547 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-20 07:49:52,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2022-03-20 07:49:52,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1006. [2022-03-20 07:49:52,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 1001 states have (on average 1.4595404595404595) internal successors, (1461), 1001 states have internal predecessors, (1461), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:52,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1465 transitions. [2022-03-20 07:49:52,799 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1465 transitions. Word has length 163 [2022-03-20 07:49:52,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:49:52,799 INFO L478 AbstractCegarLoop]: Abstraction has 1006 states and 1465 transitions. [2022-03-20 07:49:52,799 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:52,799 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1465 transitions. [2022-03-20 07:49:52,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-03-20 07:49:52,801 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:49:52,801 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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 07:49:52,801 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-20 07:49:52,802 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:49:52,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:49:52,802 INFO L85 PathProgramCache]: Analyzing trace with hash 374542751, now seen corresponding path program 1 times [2022-03-20 07:49:52,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:49:52,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994798922] [2022-03-20 07:49:52,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:49:52,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:49:52,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:52,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:49:52,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:52,921 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-20 07:49:52,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:49:52,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994798922] [2022-03-20 07:49:52,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994798922] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:49:52,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:49:52,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:49:52,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485013835] [2022-03-20 07:49:52,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:49:52,922 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:49:52,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:49:52,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:49:52,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:49:52,923 INFO L87 Difference]: Start difference. First operand 1006 states and 1465 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:54,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:57,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:49:57,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:49:57,574 INFO L93 Difference]: Finished difference Result 1137 states and 1631 transitions. [2022-03-20 07:49:57,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:49:57,574 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 164 [2022-03-20 07:49:57,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:49:57,582 INFO L225 Difference]: With dead ends: 1137 [2022-03-20 07:49:57,582 INFO L226 Difference]: Without dead ends: 1137 [2022-03-20 07:49:57,582 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 07:49:57,582 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 119 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:49:57,583 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 384 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-20 07:49:57,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2022-03-20 07:49:57,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 1006. [2022-03-20 07:49:57,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 1001 states have (on average 1.4455544455544456) internal successors, (1447), 1001 states have internal predecessors, (1447), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:57,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1451 transitions. [2022-03-20 07:49:57,600 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1451 transitions. Word has length 164 [2022-03-20 07:49:57,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:49:57,600 INFO L478 AbstractCegarLoop]: Abstraction has 1006 states and 1451 transitions. [2022-03-20 07:49:57,600 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:57,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1451 transitions. [2022-03-20 07:49:57,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-03-20 07:49:57,603 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:49:57,603 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:49:57,603 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-20 07:49:57,603 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:49:57,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:49:57,603 INFO L85 PathProgramCache]: Analyzing trace with hash 663485998, now seen corresponding path program 1 times [2022-03-20 07:49:57,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:49:57,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819437753] [2022-03-20 07:49:57,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:49:57,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:49:57,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:57,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:49:57,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:49:57,740 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-20 07:49:57,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:49:57,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819437753] [2022-03-20 07:49:57,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819437753] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:49:57,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:49:57,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:49:57,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383383306] [2022-03-20 07:49:57,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:49:57,741 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:49:57,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:49:57,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:49:57,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:49:57,742 INFO L87 Difference]: Start difference. First operand 1006 states and 1451 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:49:59,862 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:01,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:02,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:50:02,413 INFO L93 Difference]: Finished difference Result 1039 states and 1490 transitions. [2022-03-20 07:50:02,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:50:02,414 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 166 [2022-03-20 07:50:02,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:50:02,416 INFO L225 Difference]: With dead ends: 1039 [2022-03-20 07:50:02,416 INFO L226 Difference]: Without dead ends: 1039 [2022-03-20 07:50:02,416 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 07:50:02,417 INFO L913 BasicCegarLoop]: 216 mSDtfsCounter, 38 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:50:02,417 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 553 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-03-20 07:50:02,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2022-03-20 07:50:02,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1006. [2022-03-20 07:50:02,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 1001 states have (on average 1.4435564435564436) internal successors, (1445), 1001 states have internal predecessors, (1445), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:02,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1449 transitions. [2022-03-20 07:50:02,428 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1449 transitions. Word has length 166 [2022-03-20 07:50:02,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:50:02,428 INFO L478 AbstractCegarLoop]: Abstraction has 1006 states and 1449 transitions. [2022-03-20 07:50:02,428 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:02,429 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1449 transitions. [2022-03-20 07:50:02,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-03-20 07:50:02,431 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:50:02,431 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:50:02,431 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-20 07:50:02,431 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:50:02,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:50:02,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1857596404, now seen corresponding path program 1 times [2022-03-20 07:50:02,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:50:02,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647235987] [2022-03-20 07:50:02,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:50:02,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:50:02,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:02,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:50:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:02,545 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-20 07:50:02,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:50:02,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647235987] [2022-03-20 07:50:02,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647235987] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:50:02,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:50:02,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:50:02,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109219765] [2022-03-20 07:50:02,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:50:02,546 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:50:02,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:50:02,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:50:02,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:50:02,546 INFO L87 Difference]: Start difference. First operand 1006 states and 1449 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:06,020 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:06,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:50:06,366 INFO L93 Difference]: Finished difference Result 1031 states and 1478 transitions. [2022-03-20 07:50:06,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:50:06,366 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2022-03-20 07:50:06,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:50:06,369 INFO L225 Difference]: With dead ends: 1031 [2022-03-20 07:50:06,369 INFO L226 Difference]: Without dead ends: 1031 [2022-03-20 07:50:06,369 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 07:50:06,369 INFO L913 BasicCegarLoop]: 218 mSDtfsCounter, 33 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-20 07:50:06,369 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 557 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-03-20 07:50:06,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2022-03-20 07:50:06,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1006. [2022-03-20 07:50:06,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 1001 states have (on average 1.4415584415584415) internal successors, (1443), 1001 states have internal predecessors, (1443), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:06,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1447 transitions. [2022-03-20 07:50:06,381 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1447 transitions. Word has length 167 [2022-03-20 07:50:06,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:50:06,381 INFO L478 AbstractCegarLoop]: Abstraction has 1006 states and 1447 transitions. [2022-03-20 07:50:06,381 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:06,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1447 transitions. [2022-03-20 07:50:06,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-03-20 07:50:06,383 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:50:06,383 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:50:06,384 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-20 07:50:06,384 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:50:06,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:50:06,384 INFO L85 PathProgramCache]: Analyzing trace with hash 2024925367, now seen corresponding path program 1 times [2022-03-20 07:50:06,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:50:06,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404425809] [2022-03-20 07:50:06,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:50:06,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:50:06,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:06,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:50:06,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:06,529 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-03-20 07:50:06,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:50:06,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404425809] [2022-03-20 07:50:06,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404425809] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:50:06,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:50:06,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:50:06,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583392899] [2022-03-20 07:50:06,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:50:06,530 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:50:06,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:50:06,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:50:06,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:50:06,531 INFO L87 Difference]: Start difference. First operand 1006 states and 1447 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:08,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:50:08,722 INFO L93 Difference]: Finished difference Result 1479 states and 2128 transitions. [2022-03-20 07:50:08,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:50:08,722 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-03-20 07:50:08,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:50:08,726 INFO L225 Difference]: With dead ends: 1479 [2022-03-20 07:50:08,726 INFO L226 Difference]: Without dead ends: 1479 [2022-03-20 07:50:08,726 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 07:50:08,727 INFO L913 BasicCegarLoop]: 382 mSDtfsCounter, 143 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:50:08,727 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 576 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 07:50:08,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2022-03-20 07:50:08,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 1479. [2022-03-20 07:50:08,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 1474 states have (on average 1.440976933514247) internal successors, (2124), 1474 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 07:50:08,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 2128 transitions. [2022-03-20 07:50:08,744 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 2128 transitions. Word has length 173 [2022-03-20 07:50:08,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:50:08,744 INFO L478 AbstractCegarLoop]: Abstraction has 1479 states and 2128 transitions. [2022-03-20 07:50:08,744 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:08,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 2128 transitions. [2022-03-20 07:50:08,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-03-20 07:50:08,747 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:50:08,747 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:50:08,747 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-20 07:50:08,747 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:50:08,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:50:08,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1944610709, now seen corresponding path program 1 times [2022-03-20 07:50:08,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:50:08,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469647078] [2022-03-20 07:50:08,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:50:08,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:50:08,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:08,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:50:08,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:08,906 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:50:08,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:50:08,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469647078] [2022-03-20 07:50:08,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469647078] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:50:08,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:50:08,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:50:08,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209260173] [2022-03-20 07:50:08,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:50:08,908 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:50:08,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:50:08,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:50:08,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:50:08,908 INFO L87 Difference]: Start difference. First operand 1479 states and 2128 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 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 07:50:11,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:50:11,323 INFO L93 Difference]: Finished difference Result 1917 states and 2757 transitions. [2022-03-20 07:50:11,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:50:11,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 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 174 [2022-03-20 07:50:11,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:50:11,341 INFO L225 Difference]: With dead ends: 1917 [2022-03-20 07:50:11,341 INFO L226 Difference]: Without dead ends: 1917 [2022-03-20 07:50:11,341 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 07:50:11,342 INFO L913 BasicCegarLoop]: 305 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:50:11,342 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 499 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:50:11,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1917 states. [2022-03-20 07:50:11,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1917 to 1911. [2022-03-20 07:50:11,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1911 states, 1906 states have (on average 1.441762854144806) internal successors, (2748), 1906 states have internal predecessors, (2748), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:11,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1911 states to 1911 states and 2752 transitions. [2022-03-20 07:50:11,369 INFO L78 Accepts]: Start accepts. Automaton has 1911 states and 2752 transitions. Word has length 174 [2022-03-20 07:50:11,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:50:11,370 INFO L478 AbstractCegarLoop]: Abstraction has 1911 states and 2752 transitions. [2022-03-20 07:50:11,370 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 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 07:50:11,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1911 states and 2752 transitions. [2022-03-20 07:50:11,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-03-20 07:50:11,395 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:50:11,395 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:50:11,395 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-20 07:50:11,396 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:50:11,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:50:11,397 INFO L85 PathProgramCache]: Analyzing trace with hash 790409397, now seen corresponding path program 1 times [2022-03-20 07:50:11,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:50:11,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777563575] [2022-03-20 07:50:11,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:50:11,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:50:11,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:11,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:50:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:11,538 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-03-20 07:50:11,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:50:11,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777563575] [2022-03-20 07:50:11,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777563575] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:50:11,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:50:11,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:50:11,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939540668] [2022-03-20 07:50:11,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:50:11,539 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:50:11,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:50:11,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:50:11,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:50:11,539 INFO L87 Difference]: Start difference. First operand 1911 states and 2752 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:12,924 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:13,958 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:15,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:50:15,584 INFO L93 Difference]: Finished difference Result 2108 states and 3035 transitions. [2022-03-20 07:50:15,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:50:15,584 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 185 [2022-03-20 07:50:15,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:50:15,588 INFO L225 Difference]: With dead ends: 2108 [2022-03-20 07:50:15,588 INFO L226 Difference]: Without dead ends: 2108 [2022-03-20 07:50:15,588 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 07:50:15,588 INFO L913 BasicCegarLoop]: 248 mSDtfsCounter, 38 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:50:15,589 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 615 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-20 07:50:15,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2108 states. [2022-03-20 07:50:15,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2108 to 2023. [2022-03-20 07:50:15,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2023 states, 2018 states have (on average 1.4430128840436076) internal successors, (2912), 2018 states have internal predecessors, (2912), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:15,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2023 states to 2023 states and 2916 transitions. [2022-03-20 07:50:15,608 INFO L78 Accepts]: Start accepts. Automaton has 2023 states and 2916 transitions. Word has length 185 [2022-03-20 07:50:15,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:50:15,608 INFO L478 AbstractCegarLoop]: Abstraction has 2023 states and 2916 transitions. [2022-03-20 07:50:15,609 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:15,609 INFO L276 IsEmpty]: Start isEmpty. Operand 2023 states and 2916 transitions. [2022-03-20 07:50:15,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-03-20 07:50:15,611 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:50:15,611 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, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:50:15,611 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-20 07:50:15,612 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:50:15,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:50:15,612 INFO L85 PathProgramCache]: Analyzing trace with hash -746379742, now seen corresponding path program 1 times [2022-03-20 07:50:15,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:50:15,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025245760] [2022-03-20 07:50:15,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:50:15,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:50:15,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:15,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:50:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:15,741 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 214 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-20 07:50:15,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:50:15,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025245760] [2022-03-20 07:50:15,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025245760] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:50:15,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:50:15,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:50:15,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206472624] [2022-03-20 07:50:15,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:50:15,742 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:50:15,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:50:15,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:50:15,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:50:15,743 INFO L87 Difference]: Start difference. First operand 2023 states and 2916 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 07:50:18,147 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:19,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:20,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:50:20,608 INFO L93 Difference]: Finished difference Result 2234 states and 3173 transitions. [2022-03-20 07:50:20,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:50:20,609 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 189 [2022-03-20 07:50:20,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:50:20,613 INFO L225 Difference]: With dead ends: 2234 [2022-03-20 07:50:20,613 INFO L226 Difference]: Without dead ends: 2234 [2022-03-20 07:50:20,613 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 07:50:20,614 INFO L913 BasicCegarLoop]: 145 mSDtfsCounter, 107 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-20 07:50:20,614 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 404 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 448 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-03-20 07:50:20,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2234 states. [2022-03-20 07:50:20,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2234 to 2023. [2022-03-20 07:50:20,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2023 states, 2018 states have (on average 1.431615460852329) internal successors, (2889), 2018 states have internal predecessors, (2889), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:20,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2023 states to 2023 states and 2893 transitions. [2022-03-20 07:50:20,637 INFO L78 Accepts]: Start accepts. Automaton has 2023 states and 2893 transitions. Word has length 189 [2022-03-20 07:50:20,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:50:20,637 INFO L478 AbstractCegarLoop]: Abstraction has 2023 states and 2893 transitions. [2022-03-20 07:50:20,637 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 07:50:20,637 INFO L276 IsEmpty]: Start isEmpty. Operand 2023 states and 2893 transitions. [2022-03-20 07:50:20,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-03-20 07:50:20,640 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:50:20,640 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, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:50:20,640 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-20 07:50:20,640 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:50:20,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:50:20,640 INFO L85 PathProgramCache]: Analyzing trace with hash -2132148959, now seen corresponding path program 1 times [2022-03-20 07:50:20,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:50:20,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834163906] [2022-03-20 07:50:20,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:50:20,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:50:20,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:20,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:50:20,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:20,780 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-03-20 07:50:20,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:50:20,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834163906] [2022-03-20 07:50:20,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834163906] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:50:20,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:50:20,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:50:20,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949809967] [2022-03-20 07:50:20,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:50:20,781 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:50:20,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:50:20,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:50:20,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:50:20,782 INFO L87 Difference]: Start difference. First operand 2023 states and 2893 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:22,050 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:23,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:25,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:50:25,145 INFO L93 Difference]: Finished difference Result 2232 states and 3178 transitions. [2022-03-20 07:50:25,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:50:25,145 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 196 [2022-03-20 07:50:25,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:50:25,149 INFO L225 Difference]: With dead ends: 2232 [2022-03-20 07:50:25,150 INFO L226 Difference]: Without dead ends: 2232 [2022-03-20 07:50:25,150 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 07:50:25,150 INFO L913 BasicCegarLoop]: 245 mSDtfsCounter, 57 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:50:25,150 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 608 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-20 07:50:25,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2232 states. [2022-03-20 07:50:25,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2232 to 2128. [2022-03-20 07:50:25,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2128 states, 2123 states have (on average 1.431464908148846) internal successors, (3039), 2123 states have internal predecessors, (3039), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:25,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 3043 transitions. [2022-03-20 07:50:25,175 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 3043 transitions. Word has length 196 [2022-03-20 07:50:25,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:50:25,175 INFO L478 AbstractCegarLoop]: Abstraction has 2128 states and 3043 transitions. [2022-03-20 07:50:25,176 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:25,176 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 3043 transitions. [2022-03-20 07:50:25,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-20 07:50:25,178 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:50:25,178 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, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:50:25,179 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-20 07:50:25,179 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:50:25,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:50:25,179 INFO L85 PathProgramCache]: Analyzing trace with hash -2042967890, now seen corresponding path program 1 times [2022-03-20 07:50:25,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:50:25,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257185502] [2022-03-20 07:50:25,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:50:25,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:50:25,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:25,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:50:25,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:25,327 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-03-20 07:50:25,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:50:25,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257185502] [2022-03-20 07:50:25,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257185502] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:50:25,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:50:25,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:50:25,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476688713] [2022-03-20 07:50:25,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:50:25,328 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:50:25,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:50:25,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:50:25,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:50:25,329 INFO L87 Difference]: Start difference. First operand 2128 states and 3043 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:27,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:29,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:50:29,028 INFO L93 Difference]: Finished difference Result 2375 states and 3367 transitions. [2022-03-20 07:50:29,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:50:29,028 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 197 [2022-03-20 07:50:29,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:50:29,032 INFO L225 Difference]: With dead ends: 2375 [2022-03-20 07:50:29,032 INFO L226 Difference]: Without dead ends: 2375 [2022-03-20 07:50:29,033 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 07:50:29,033 INFO L913 BasicCegarLoop]: 139 mSDtfsCounter, 108 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:50:29,033 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 392 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-20 07:50:29,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2375 states. [2022-03-20 07:50:29,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2375 to 2128. [2022-03-20 07:50:29,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2128 states, 2123 states have (on average 1.4258125294394723) internal successors, (3027), 2123 states have internal predecessors, (3027), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:29,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 3031 transitions. [2022-03-20 07:50:29,056 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 3031 transitions. Word has length 197 [2022-03-20 07:50:29,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:50:29,056 INFO L478 AbstractCegarLoop]: Abstraction has 2128 states and 3031 transitions. [2022-03-20 07:50:29,057 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:29,057 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 3031 transitions. [2022-03-20 07:50:29,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-03-20 07:50:29,059 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:50:29,060 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:50:29,060 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-20 07:50:29,060 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:50:29,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:50:29,060 INFO L85 PathProgramCache]: Analyzing trace with hash -2042368162, now seen corresponding path program 1 times [2022-03-20 07:50:29,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:50:29,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478719088] [2022-03-20 07:50:29,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:50:29,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:50:29,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:29,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:50:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:29,586 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-20 07:50:29,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:50:29,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478719088] [2022-03-20 07:50:29,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478719088] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:50:29,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:50:29,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 07:50:29,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578495140] [2022-03-20 07:50:29,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:50:29,588 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 07:50:29,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:50:29,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 07:50:29,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-20 07:50:29,588 INFO L87 Difference]: Start difference. First operand 2128 states and 3031 transitions. Second operand has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 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 07:50:31,473 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 07:50:35,175 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:50:36,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:50:36,280 INFO L93 Difference]: Finished difference Result 2136 states and 3041 transitions. [2022-03-20 07:50:36,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 07:50:36,280 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 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 198 [2022-03-20 07:50:36,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:50:36,284 INFO L225 Difference]: With dead ends: 2136 [2022-03-20 07:50:36,284 INFO L226 Difference]: Without dead ends: 2128 [2022-03-20 07:50:36,284 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 07:50:36,285 INFO L913 BasicCegarLoop]: 215 mSDtfsCounter, 7 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:50:36,285 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 872 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-03-20 07:50:36,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2128 states. [2022-03-20 07:50:36,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2128 to 2128. [2022-03-20 07:50:36,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2128 states, 2123 states have (on average 1.425341497880358) internal successors, (3026), 2123 states have internal predecessors, (3026), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:50:36,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 3030 transitions. [2022-03-20 07:50:36,303 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 3030 transitions. Word has length 198 [2022-03-20 07:50:36,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:50:36,303 INFO L478 AbstractCegarLoop]: Abstraction has 2128 states and 3030 transitions. [2022-03-20 07:50:36,303 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 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 07:50:36,303 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 3030 transitions. [2022-03-20 07:50:36,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-03-20 07:50:36,306 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:50:36,306 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:50:36,306 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-20 07:50:36,307 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:50:36,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:50:36,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1798831299, now seen corresponding path program 1 times [2022-03-20 07:50:36,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:50:36,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775075377] [2022-03-20 07:50:36,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:50:36,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:50:37,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:37,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:50:37,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:37,565 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 209 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-03-20 07:50:37,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:50:37,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775075377] [2022-03-20 07:50:37,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775075377] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 07:50:37,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42436422] [2022-03-20 07:50:37,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:50:37,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:50:37,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:50:37,571 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 07:50:37,600 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 07:50:38,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:50:38,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 1293 conjuncts, 173 conjunts are in the unsatisfiable core [2022-03-20 07:50:38,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 07:50:39,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,088 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 17 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14076 treesize of output 12060 [2022-03-20 07:50:39,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:50:39,163 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 18 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5440 treesize of output 866