/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.11.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-15 00:48:18,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 00:48:18,561 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 00:48:18,607 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-15 00:48:18,608 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-15 00:48:18,610 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-15 00:48:18,612 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-15 00:48:18,618 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-15 00:48:18,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-15 00:48:18,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-15 00:48:18,625 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-15 00:48:18,626 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-15 00:48:18,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-15 00:48:18,628 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-15 00:48:18,630 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-15 00:48:18,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-15 00:48:18,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-15 00:48:18,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-15 00:48:18,636 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-15 00:48:18,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-15 00:48:18,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-15 00:48:18,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-15 00:48:18,641 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-15 00:48:18,641 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-15 00:48:18,650 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-15 00:48:18,650 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-15 00:48:18,651 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-15 00:48:18,651 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-15 00:48:18,651 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-15 00:48:18,652 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-15 00:48:18,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-15 00:48:18,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-15 00:48:18,653 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-15 00:48:18,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-15 00:48:18,654 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-15 00:48:18,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-15 00:48:18,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-15 00:48:18,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-15 00:48:18,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 00:48:18,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 00:48:18,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 00:48:18,660 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-02-15 00:48:18,670 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 00:48:18,670 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 00:48:18,671 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 00:48:18,672 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-15 00:48:18,672 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 00:48:18,672 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-15 00:48:18,672 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 00:48:18,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 00:48:18,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 00:48:18,672 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 00:48:18,673 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-15 00:48:18,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 00:48:18,673 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 00:48:18,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 00:48:18,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 00:48:18,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 00:48:18,674 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 00:48:18,674 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 00:48:18,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 00:48:18,674 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 00:48:18,674 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-15 00:48:18,675 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-15 00:48:18,675 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-15 00:48:18,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 00:48:18,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 00:48:18,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 00:48:18,943 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 00:48:18,943 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 00:48:18,944 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.11.i.cil-2.c [2022-02-15 00:48:18,997 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24d67a50b/4bb13cf4f9a44bdd934a91904d4f9bd2/FLAGb2ddefbad [2022-02-15 00:48:19,542 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 00:48:19,547 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.11.i.cil-2.c [2022-02-15 00:48:19,560 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24d67a50b/4bb13cf4f9a44bdd934a91904d4f9bd2/FLAGb2ddefbad [2022-02-15 00:48:20,016 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24d67a50b/4bb13cf4f9a44bdd934a91904d4f9bd2 [2022-02-15 00:48:20,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 00:48:20,018 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-15 00:48:20,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 00:48:20,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 00:48:20,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 00:48:20,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:48:20" (1/1) ... [2022-02-15 00:48:20,030 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a7b73a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:48:20, skipping insertion in model container [2022-02-15 00:48:20,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:48:20" (1/1) ... [2022-02-15 00:48:20,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 00:48:20,104 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 00:48:20,393 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.11.i.cil-2.c[74369,74382] [2022-02-15 00:48:20,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 00:48:20,410 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 00:48:20,538 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.11.i.cil-2.c[74369,74382] [2022-02-15 00:48:20,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 00:48:20,559 INFO L208 MainTranslator]: Completed translation [2022-02-15 00:48:20,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:48:20 WrapperNode [2022-02-15 00:48:20,560 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 00:48:20,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 00:48:20,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 00:48:20,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 00:48:20,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:48:20" (1/1) ... [2022-02-15 00:48:20,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:48:20" (1/1) ... [2022-02-15 00:48:20,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:48:20" (1/1) ... [2022-02-15 00:48:20,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:48:20" (1/1) ... [2022-02-15 00:48:20,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:48:20" (1/1) ... [2022-02-15 00:48:20,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:48:20" (1/1) ... [2022-02-15 00:48:20,683 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:48:20" (1/1) ... [2022-02-15 00:48:20,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 00:48:20,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 00:48:20,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 00:48:20,689 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 00:48:20,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:48:20" (1/1) ... [2022-02-15 00:48:20,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 00:48:20,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:48:20,724 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) [2022-02-15 00:48:20,750 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 [2022-02-15 00:48:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-15 00:48:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 00:48:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-15 00:48:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-02-15 00:48:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-02-15 00:48:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-15 00:48:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-15 00:48:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-15 00:48:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-15 00:48:20,767 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-15 00:48:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-15 00:48:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-15 00:48:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-15 00:48:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 00:48:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-15 00:48:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-15 00:48:20,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-15 00:48:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-15 00:48:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-15 00:48:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-15 00:48:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-02-15 00:48:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-15 00:48:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-15 00:48:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-02-15 00:48:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-15 00:48:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-15 00:48:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-15 00:48:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-15 00:48:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 00:48:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-15 00:48:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 00:48:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-15 00:48:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-15 00:48:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-15 00:48:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 00:48:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 00:48:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-15 00:48:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-15 00:48:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-15 00:48:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-15 00:48:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 00:48:20,956 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 00:48:20,958 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 00:48:21,614 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-15 00:48:22,095 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-02-15 00:48:22,095 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-02-15 00:48:22,104 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 00:48:22,113 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 00:48:22,114 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-15 00:48:22,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:48:22 BoogieIcfgContainer [2022-02-15 00:48:22,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 00:48:22,116 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-15 00:48:22,117 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-15 00:48:22,118 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-15 00:48:22,120 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:48:22" (1/1) ... [2022-02-15 00:48:22,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.02 12:48:22 BasicIcfg [2022-02-15 00:48:22,169 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-15 00:48:22,171 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 00:48:22,171 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 00:48:22,174 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 00:48:22,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 12:48:20" (1/4) ... [2022-02-15 00:48:22,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79b285c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 12:48:22, skipping insertion in model container [2022-02-15 00:48:22,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:48:20" (2/4) ... [2022-02-15 00:48:22,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79b285c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 12:48:22, skipping insertion in model container [2022-02-15 00:48:22,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:48:22" (3/4) ... [2022-02-15 00:48:22,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79b285c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 12:48:22, skipping insertion in model container [2022-02-15 00:48:22,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.02 12:48:22" (4/4) ... [2022-02-15 00:48:22,179 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.11.i.cil-2.cJordan [2022-02-15 00:48:22,184 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-02-15 00:48:22,184 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 00:48:22,236 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 00:48:22,242 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-02-15 00:48:22,243 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-15 00:48:22,264 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-15 00:48:22,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-02-15 00:48:22,273 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:22,273 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:48:22,274 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:22,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:22,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1749012704, now seen corresponding path program 1 times [2022-02-15 00:48:22,284 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:22,285 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685630701] [2022-02-15 00:48:22,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:22,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:22,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:22,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:22,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:48:22,825 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:22,825 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685630701] [2022-02-15 00:48:22,826 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685630701] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:22,826 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:48:22,826 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:48:22,828 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266984011] [2022-02-15 00:48:22,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:22,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:48:22,834 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:22,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:48:22,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:48:22,862 INFO L87 Difference]: Start difference. First operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:24,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:24,883 INFO L93 Difference]: Finished difference Result 191 states and 312 transitions. [2022-02-15 00:48:24,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:48:24,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-02-15 00:48:24,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:24,893 INFO L225 Difference]: With dead ends: 191 [2022-02-15 00:48:24,893 INFO L226 Difference]: Without dead ends: 170 [2022-02-15 00:48:24,895 INFO L932 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 [2022-02-15 00:48:24,897 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 34 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:24,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 607 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-02-15 00:48:24,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-02-15 00:48:24,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 153. [2022-02-15 00:48:24,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 148 states have (on average 1.554054054054054) internal successors, (230), 148 states have internal predecessors, (230), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:24,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 234 transitions. [2022-02-15 00:48:24,934 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 234 transitions. Word has length 42 [2022-02-15 00:48:24,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:24,935 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 234 transitions. [2022-02-15 00:48:24,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:24,935 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 234 transitions. [2022-02-15 00:48:24,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-02-15 00:48:24,937 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:24,937 INFO L514 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] [2022-02-15 00:48:24,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 00:48:24,937 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:24,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:24,938 INFO L85 PathProgramCache]: Analyzing trace with hash -31615949, now seen corresponding path program 1 times [2022-02-15 00:48:24,938 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:24,938 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484473611] [2022-02-15 00:48:24,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:24,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:25,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:25,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:25,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:25,119 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:48:25,120 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:25,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484473611] [2022-02-15 00:48:25,121 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484473611] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:25,121 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:48:25,121 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:48:25,122 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793856981] [2022-02-15 00:48:25,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:25,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:48:25,126 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:25,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:48:25,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:48:25,133 INFO L87 Difference]: Start difference. First operand 153 states and 234 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:27,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:29,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:29,009 INFO L93 Difference]: Finished difference Result 272 states and 418 transitions. [2022-02-15 00:48:29,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:48:29,009 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 55 [2022-02-15 00:48:29,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:29,012 INFO L225 Difference]: With dead ends: 272 [2022-02-15 00:48:29,012 INFO L226 Difference]: Without dead ends: 272 [2022-02-15 00:48:29,012 INFO L932 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 [2022-02-15 00:48:29,013 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 147 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:29,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 634 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 625 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-02-15 00:48:29,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2022-02-15 00:48:29,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 169. [2022-02-15 00:48:29,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5548780487804879) internal successors, (255), 164 states have internal predecessors, (255), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:29,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 259 transitions. [2022-02-15 00:48:29,030 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 259 transitions. Word has length 55 [2022-02-15 00:48:29,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:29,031 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 259 transitions. [2022-02-15 00:48:29,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:29,031 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 259 transitions. [2022-02-15 00:48:29,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-02-15 00:48:29,032 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:29,033 INFO L514 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] [2022-02-15 00:48:29,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 00:48:29,033 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:29,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:29,033 INFO L85 PathProgramCache]: Analyzing trace with hash 563568954, now seen corresponding path program 1 times [2022-02-15 00:48:29,034 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:29,034 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112006442] [2022-02-15 00:48:29,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:29,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:29,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:29,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:29,236 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:48:29,236 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:29,237 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112006442] [2022-02-15 00:48:29,237 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112006442] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:29,237 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:48:29,237 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:48:29,237 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454145900] [2022-02-15 00:48:29,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:29,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:48:29,238 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:29,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:48:29,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:48:29,239 INFO L87 Difference]: Start difference. First operand 169 states and 259 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:31,472 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 [] [2022-02-15 00:48:33,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:33,223 INFO L93 Difference]: Finished difference Result 185 states and 278 transitions. [2022-02-15 00:48:33,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:48:33,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-02-15 00:48:33,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:33,225 INFO L225 Difference]: With dead ends: 185 [2022-02-15 00:48:33,225 INFO L226 Difference]: Without dead ends: 185 [2022-02-15 00:48:33,226 INFO L932 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 [2022-02-15 00:48:33,227 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 28 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:33,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 485 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-02-15 00:48:33,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-02-15 00:48:33,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 169. [2022-02-15 00:48:33,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.548780487804878) internal successors, (254), 164 states have internal predecessors, (254), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:33,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 258 transitions. [2022-02-15 00:48:33,236 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 258 transitions. Word has length 56 [2022-02-15 00:48:33,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:33,236 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 258 transitions. [2022-02-15 00:48:33,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:33,236 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 258 transitions. [2022-02-15 00:48:33,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-02-15 00:48:33,238 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:33,238 INFO L514 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] [2022-02-15 00:48:33,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 00:48:33,239 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:33,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:33,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1102465370, now seen corresponding path program 1 times [2022-02-15 00:48:33,239 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:33,239 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963707432] [2022-02-15 00:48:33,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:33,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:33,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:33,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:33,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:33,397 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:48:33,398 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:33,399 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963707432] [2022-02-15 00:48:33,402 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963707432] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:33,402 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:48:33,402 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:48:33,402 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392744711] [2022-02-15 00:48:33,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:33,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:48:33,403 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:33,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:48:33,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:48:33,404 INFO L87 Difference]: Start difference. First operand 169 states and 258 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:35,068 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:36,630 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:38,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:39,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:39,057 INFO L93 Difference]: Finished difference Result 185 states and 277 transitions. [2022-02-15 00:48:39,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:48:39,057 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-02-15 00:48:39,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:39,059 INFO L225 Difference]: With dead ends: 185 [2022-02-15 00:48:39,059 INFO L226 Difference]: Without dead ends: 185 [2022-02-15 00:48:39,059 INFO L932 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 [2022-02-15 00:48:39,063 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 26 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:39,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 485 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-02-15 00:48:39,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-02-15 00:48:39,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 169. [2022-02-15 00:48:39,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5426829268292683) internal successors, (253), 164 states have internal predecessors, (253), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:39,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 257 transitions. [2022-02-15 00:48:39,085 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 257 transitions. Word has length 56 [2022-02-15 00:48:39,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:39,085 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 257 transitions. [2022-02-15 00:48:39,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:39,086 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 257 transitions. [2022-02-15 00:48:39,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-02-15 00:48:39,087 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:39,087 INFO L514 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] [2022-02-15 00:48:39,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-15 00:48:39,088 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:39,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:39,088 INFO L85 PathProgramCache]: Analyzing trace with hash 345212314, now seen corresponding path program 1 times [2022-02-15 00:48:39,088 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:39,089 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608159314] [2022-02-15 00:48:39,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:39,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:39,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:39,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:39,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:39,263 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:48:39,263 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:39,263 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608159314] [2022-02-15 00:48:39,264 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608159314] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:39,264 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:48:39,264 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:48:39,264 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767783205] [2022-02-15 00:48:39,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:39,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:48:39,265 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:39,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:48:39,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:48:39,266 INFO L87 Difference]: Start difference. First operand 169 states and 257 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:40,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:42,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:42,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:42,919 INFO L93 Difference]: Finished difference Result 183 states and 274 transitions. [2022-02-15 00:48:42,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:48:42,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-02-15 00:48:42,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:42,921 INFO L225 Difference]: With dead ends: 183 [2022-02-15 00:48:42,921 INFO L226 Difference]: Without dead ends: 183 [2022-02-15 00:48:42,921 INFO L932 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 [2022-02-15 00:48:42,922 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 20 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:42,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 489 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-02-15 00:48:42,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-02-15 00:48:42,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 169. [2022-02-15 00:48:42,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5365853658536586) internal successors, (252), 164 states have internal predecessors, (252), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:42,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 256 transitions. [2022-02-15 00:48:42,927 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 256 transitions. Word has length 56 [2022-02-15 00:48:42,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:42,927 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 256 transitions. [2022-02-15 00:48:42,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:42,928 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 256 transitions. [2022-02-15 00:48:42,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-02-15 00:48:42,929 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:42,929 INFO L514 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] [2022-02-15 00:48:42,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-15 00:48:42,930 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:42,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:42,934 INFO L85 PathProgramCache]: Analyzing trace with hash -3480390, now seen corresponding path program 1 times [2022-02-15 00:48:42,934 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:42,934 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479424187] [2022-02-15 00:48:42,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:42,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:42,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:43,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:43,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:43,065 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:48:43,065 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:43,065 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479424187] [2022-02-15 00:48:43,065 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479424187] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:43,065 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:48:43,066 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:48:43,066 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888299148] [2022-02-15 00:48:43,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:43,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:48:43,066 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:43,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:48:43,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:48:43,067 INFO L87 Difference]: Start difference. First operand 169 states and 256 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:44,868 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:47,505 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:48,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:48,899 INFO L93 Difference]: Finished difference Result 287 states and 439 transitions. [2022-02-15 00:48:48,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:48:48,900 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-02-15 00:48:48,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:48,901 INFO L225 Difference]: With dead ends: 287 [2022-02-15 00:48:48,901 INFO L226 Difference]: Without dead ends: 287 [2022-02-15 00:48:48,902 INFO L932 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 [2022-02-15 00:48:48,902 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 145 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:48,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-02-15 00:48:48,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-02-15 00:48:48,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 187. [2022-02-15 00:48:48,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.543956043956044) internal successors, (281), 182 states have internal predecessors, (281), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:48,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 285 transitions. [2022-02-15 00:48:48,909 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 285 transitions. Word has length 56 [2022-02-15 00:48:48,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:48,909 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 285 transitions. [2022-02-15 00:48:48,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:48,909 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 285 transitions. [2022-02-15 00:48:48,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-02-15 00:48:48,911 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:48,911 INFO L514 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] [2022-02-15 00:48:48,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-15 00:48:48,911 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:48,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:48,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1719924627, now seen corresponding path program 1 times [2022-02-15 00:48:48,912 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:48,912 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760525541] [2022-02-15 00:48:48,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:48,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:48,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:49,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:49,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:49,059 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:48:49,059 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:49,059 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760525541] [2022-02-15 00:48:49,059 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760525541] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:49,059 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:48:49,059 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:48:49,060 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134992914] [2022-02-15 00:48:49,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:49,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:48:49,060 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:49,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:48:49,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:48:49,061 INFO L87 Difference]: Start difference. First operand 187 states and 285 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:51,488 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:53,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:54,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:54,249 INFO L93 Difference]: Finished difference Result 287 states and 436 transitions. [2022-02-15 00:48:54,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:48:54,250 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2022-02-15 00:48:54,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:54,251 INFO L225 Difference]: With dead ends: 287 [2022-02-15 00:48:54,251 INFO L226 Difference]: Without dead ends: 287 [2022-02-15 00:48:54,252 INFO L932 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 [2022-02-15 00:48:54,252 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 149 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:54,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-02-15 00:48:54,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-02-15 00:48:54,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 187. [2022-02-15 00:48:54,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.5274725274725274) internal successors, (278), 182 states have internal predecessors, (278), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:54,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 282 transitions. [2022-02-15 00:48:54,258 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 282 transitions. Word has length 57 [2022-02-15 00:48:54,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:54,259 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 282 transitions. [2022-02-15 00:48:54,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:54,259 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 282 transitions. [2022-02-15 00:48:54,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-02-15 00:48:54,260 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:54,260 INFO L514 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] [2022-02-15 00:48:54,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-15 00:48:54,260 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:54,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:54,261 INFO L85 PathProgramCache]: Analyzing trace with hash -9441922, now seen corresponding path program 1 times [2022-02-15 00:48:54,261 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:54,261 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017233749] [2022-02-15 00:48:54,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:54,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:54,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:54,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:54,369 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:48:54,369 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:54,370 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017233749] [2022-02-15 00:48:54,370 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017233749] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:54,370 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:48:54,370 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:48:54,370 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578548867] [2022-02-15 00:48:54,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:54,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:48:54,371 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:54,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:48:54,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:48:54,371 INFO L87 Difference]: Start difference. First operand 187 states and 282 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:58,489 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 [] [2022-02-15 00:48:58,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:58,835 INFO L93 Difference]: Finished difference Result 200 states and 298 transitions. [2022-02-15 00:48:58,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:48:58,835 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 58 [2022-02-15 00:48:58,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:58,836 INFO L225 Difference]: With dead ends: 200 [2022-02-15 00:48:58,836 INFO L226 Difference]: Without dead ends: 200 [2022-02-15 00:48:58,836 INFO L932 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 [2022-02-15 00:48:58,837 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 20 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:58,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 491 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 355 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-02-15 00:48:58,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-02-15 00:48:58,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 187. [2022-02-15 00:48:58,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.521978021978022) internal successors, (277), 182 states have internal predecessors, (277), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:58,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 281 transitions. [2022-02-15 00:48:58,842 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 281 transitions. Word has length 58 [2022-02-15 00:48:58,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:58,842 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 281 transitions. [2022-02-15 00:48:58,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:58,842 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 281 transitions. [2022-02-15 00:48:58,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-02-15 00:48:58,843 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:58,843 INFO L514 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] [2022-02-15 00:48:58,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-15 00:48:58,844 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:58,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:58,844 INFO L85 PathProgramCache]: Analyzing trace with hash -553280842, now seen corresponding path program 1 times [2022-02-15 00:48:58,844 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:58,844 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082922746] [2022-02-15 00:48:58,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:58,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:58,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:58,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:58,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:58,951 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:48:58,951 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:58,951 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082922746] [2022-02-15 00:48:58,951 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082922746] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:58,951 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:48:58,951 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:48:58,951 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633374764] [2022-02-15 00:48:58,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:58,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:48:58,952 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:58,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:48:58,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:48:58,952 INFO L87 Difference]: Start difference. First operand 187 states and 281 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:00,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:02,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:02,960 INFO L93 Difference]: Finished difference Result 190 states and 284 transitions. [2022-02-15 00:49:02,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:49:02,961 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2022-02-15 00:49:02,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:02,962 INFO L225 Difference]: With dead ends: 190 [2022-02-15 00:49:02,962 INFO L226 Difference]: Without dead ends: 190 [2022-02-15 00:49:02,962 INFO L932 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 [2022-02-15 00:49:02,963 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 11 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:02,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 505 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-02-15 00:49:02,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-02-15 00:49:02,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 187. [2022-02-15 00:49:02,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.5164835164835164) internal successors, (276), 182 states have internal predecessors, (276), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:02,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 280 transitions. [2022-02-15 00:49:02,967 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 280 transitions. Word has length 59 [2022-02-15 00:49:02,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:02,968 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 280 transitions. [2022-02-15 00:49:02,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:02,968 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 280 transitions. [2022-02-15 00:49:02,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-02-15 00:49:02,969 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:02,969 INFO L514 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] [2022-02-15 00:49:02,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-15 00:49:02,969 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:02,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:02,970 INFO L85 PathProgramCache]: Analyzing trace with hash -186558363, now seen corresponding path program 1 times [2022-02-15 00:49:02,970 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:02,970 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606983576] [2022-02-15 00:49:02,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:02,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:03,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:03,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:03,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:03,088 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:49:03,089 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:03,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606983576] [2022-02-15 00:49:03,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606983576] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:03,089 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:03,089 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:49:03,089 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953227438] [2022-02-15 00:49:03,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:03,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:49:03,090 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:03,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:49:03,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:49:03,090 INFO L87 Difference]: Start difference. First operand 187 states and 280 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:04,975 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 [] [2022-02-15 00:49:07,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:07,553 INFO L93 Difference]: Finished difference Result 305 states and 461 transitions. [2022-02-15 00:49:07,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:49:07,553 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2022-02-15 00:49:07,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:07,555 INFO L225 Difference]: With dead ends: 305 [2022-02-15 00:49:07,555 INFO L226 Difference]: Without dead ends: 305 [2022-02-15 00:49:07,555 INFO L932 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 [2022-02-15 00:49:07,556 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 134 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:07,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 344 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-02-15 00:49:07,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-02-15 00:49:07,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 215. [2022-02-15 00:49:07,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 210 states have (on average 1.5380952380952382) internal successors, (323), 210 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) [2022-02-15 00:49:07,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 327 transitions. [2022-02-15 00:49:07,562 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 327 transitions. Word has length 59 [2022-02-15 00:49:07,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:07,562 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 327 transitions. [2022-02-15 00:49:07,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:07,563 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 327 transitions. [2022-02-15 00:49:07,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-02-15 00:49:07,563 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:07,563 INFO L514 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] [2022-02-15 00:49:07,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-15 00:49:07,564 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:07,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:07,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1871719059, now seen corresponding path program 1 times [2022-02-15 00:49:07,564 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:07,564 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115529322] [2022-02-15 00:49:07,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:07,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:07,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:07,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:07,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:07,672 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:49:07,672 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:07,673 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115529322] [2022-02-15 00:49:07,673 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115529322] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:07,673 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:07,673 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:49:07,673 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736083489] [2022-02-15 00:49:07,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:07,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:49:07,673 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:07,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:49:07,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:49:07,674 INFO L87 Difference]: Start difference. First operand 215 states and 327 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:09,621 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:12,857 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 [] [2022-02-15 00:49:13,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:13,232 INFO L93 Difference]: Finished difference Result 257 states and 388 transitions. [2022-02-15 00:49:13,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:49:13,232 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 60 [2022-02-15 00:49:13,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:13,234 INFO L225 Difference]: With dead ends: 257 [2022-02-15 00:49:13,234 INFO L226 Difference]: Without dead ends: 257 [2022-02-15 00:49:13,234 INFO L932 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 [2022-02-15 00:49:13,235 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 31 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:13,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 505 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 395 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-02-15 00:49:13,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-02-15 00:49:13,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 237. [2022-02-15 00:49:13,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.543103448275862) internal successors, (358), 232 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) [2022-02-15 00:49:13,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 362 transitions. [2022-02-15 00:49:13,241 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 362 transitions. Word has length 60 [2022-02-15 00:49:13,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:13,241 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 362 transitions. [2022-02-15 00:49:13,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:13,241 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 362 transitions. [2022-02-15 00:49:13,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-02-15 00:49:13,242 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:13,242 INFO L514 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] [2022-02-15 00:49:13,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-15 00:49:13,242 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:13,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:13,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1940068921, now seen corresponding path program 1 times [2022-02-15 00:49:13,243 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:13,243 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776237919] [2022-02-15 00:49:13,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:13,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:13,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:13,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:13,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:13,388 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-15 00:49:13,388 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:13,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776237919] [2022-02-15 00:49:13,388 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776237919] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:13,388 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:13,388 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:49:13,389 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106114266] [2022-02-15 00:49:13,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:13,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:49:13,389 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:13,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:49:13,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:49:13,390 INFO L87 Difference]: Start difference. First operand 237 states and 362 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:14,587 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:16,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:17,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:17,255 INFO L93 Difference]: Finished difference Result 250 states and 377 transitions. [2022-02-15 00:49:17,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:49:17,256 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2022-02-15 00:49:17,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:17,257 INFO L225 Difference]: With dead ends: 250 [2022-02-15 00:49:17,257 INFO L226 Difference]: Without dead ends: 250 [2022-02-15 00:49:17,257 INFO L932 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 [2022-02-15 00:49:17,258 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 21 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:17,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 576 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-02-15 00:49:17,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-02-15 00:49:17,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 237. [2022-02-15 00:49:17,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.5387931034482758) internal successors, (357), 232 states have internal predecessors, (357), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:17,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 361 transitions. [2022-02-15 00:49:17,263 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 361 transitions. Word has length 74 [2022-02-15 00:49:17,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:17,264 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 361 transitions. [2022-02-15 00:49:17,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:17,265 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 361 transitions. [2022-02-15 00:49:17,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-02-15 00:49:17,265 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:17,265 INFO L514 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] [2022-02-15 00:49:17,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-15 00:49:17,266 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:17,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:17,266 INFO L85 PathProgramCache]: Analyzing trace with hash -534019623, now seen corresponding path program 1 times [2022-02-15 00:49:17,266 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:17,266 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925300773] [2022-02-15 00:49:17,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:17,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:17,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:17,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:17,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:17,380 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:49:17,380 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:17,380 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925300773] [2022-02-15 00:49:17,380 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925300773] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:17,380 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:17,380 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:49:17,381 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546569362] [2022-02-15 00:49:17,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:17,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:49:17,381 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:17,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:49:17,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:49:17,382 INFO L87 Difference]: Start difference. First operand 237 states and 361 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:19,746 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:20,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:20,606 INFO L93 Difference]: Finished difference Result 255 states and 384 transitions. [2022-02-15 00:49:20,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:49:20,606 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2022-02-15 00:49:20,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:20,607 INFO L225 Difference]: With dead ends: 255 [2022-02-15 00:49:20,607 INFO L226 Difference]: Without dead ends: 255 [2022-02-15 00:49:20,608 INFO L932 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 [2022-02-15 00:49:20,608 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 35 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:20,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 509 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-02-15 00:49:20,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-02-15 00:49:20,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 237. [2022-02-15 00:49:20,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.5344827586206897) internal successors, (356), 232 states have internal predecessors, (356), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:20,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 360 transitions. [2022-02-15 00:49:20,614 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 360 transitions. Word has length 74 [2022-02-15 00:49:20,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:20,614 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 360 transitions. [2022-02-15 00:49:20,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:20,614 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 360 transitions. [2022-02-15 00:49:20,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-02-15 00:49:20,615 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:20,615 INFO L514 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] [2022-02-15 00:49:20,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-15 00:49:20,615 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:20,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:20,616 INFO L85 PathProgramCache]: Analyzing trace with hash -801809009, now seen corresponding path program 1 times [2022-02-15 00:49:20,616 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:20,616 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321464374] [2022-02-15 00:49:20,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:20,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:20,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:20,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:20,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:20,786 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-15 00:49:20,787 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:20,787 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321464374] [2022-02-15 00:49:20,787 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321464374] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:20,787 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:20,787 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 00:49:20,787 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249506518] [2022-02-15 00:49:20,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:20,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 00:49:20,788 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:20,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 00:49:20,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:49:20,789 INFO L87 Difference]: Start difference. First operand 237 states and 360 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:23,852 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:25,877 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:27,899 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 [] [2022-02-15 00:49:28,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:28,314 INFO L93 Difference]: Finished difference Result 246 states and 371 transitions. [2022-02-15 00:49:28,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 00:49:28,315 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2022-02-15 00:49:28,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:28,316 INFO L225 Difference]: With dead ends: 246 [2022-02-15 00:49:28,316 INFO L226 Difference]: Without dead ends: 246 [2022-02-15 00:49:28,316 INFO L932 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 [2022-02-15 00:49:28,317 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 3 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:28,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 633 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 434 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-02-15 00:49:28,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-02-15 00:49:28,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2022-02-15 00:49:28,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5228215767634854) internal successors, (367), 241 states have internal predecessors, (367), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:28,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 371 transitions. [2022-02-15 00:49:28,322 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 371 transitions. Word has length 75 [2022-02-15 00:49:28,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:28,322 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 371 transitions. [2022-02-15 00:49:28,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:28,323 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 371 transitions. [2022-02-15 00:49:28,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-02-15 00:49:28,323 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:28,323 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:49:28,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-15 00:49:28,324 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:28,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:28,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1681571247, now seen corresponding path program 1 times [2022-02-15 00:49:28,324 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:28,324 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222261237] [2022-02-15 00:49:28,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:28,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:28,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:28,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:28,436 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:49:28,437 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:28,437 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222261237] [2022-02-15 00:49:28,437 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222261237] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:28,437 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:28,437 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:49:28,437 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260073256] [2022-02-15 00:49:28,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:28,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:49:28,438 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:28,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:49:28,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:49:28,438 INFO L87 Difference]: Start difference. First operand 246 states and 371 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:30,486 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 [] [2022-02-15 00:49:31,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:31,749 INFO L93 Difference]: Finished difference Result 273 states and 405 transitions. [2022-02-15 00:49:31,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:49:31,749 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2022-02-15 00:49:31,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:31,751 INFO L225 Difference]: With dead ends: 273 [2022-02-15 00:49:31,751 INFO L226 Difference]: Without dead ends: 273 [2022-02-15 00:49:31,751 INFO L932 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 [2022-02-15 00:49:31,751 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 39 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:31,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 509 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-02-15 00:49:31,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-02-15 00:49:31,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 246. [2022-02-15 00:49:31,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5186721991701244) internal successors, (366), 241 states have internal predecessors, (366), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:31,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 370 transitions. [2022-02-15 00:49:31,757 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 370 transitions. Word has length 75 [2022-02-15 00:49:31,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:31,757 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 370 transitions. [2022-02-15 00:49:31,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:31,757 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 370 transitions. [2022-02-15 00:49:31,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-02-15 00:49:31,758 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:31,758 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:49:31,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-15 00:49:31,758 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:31,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:31,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1399153773, now seen corresponding path program 1 times [2022-02-15 00:49:31,759 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:31,759 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792962758] [2022-02-15 00:49:31,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:31,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:31,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:31,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:31,899 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:49:31,900 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:31,900 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792962758] [2022-02-15 00:49:31,901 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792962758] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:31,901 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:31,901 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:49:31,901 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362189708] [2022-02-15 00:49:31,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:31,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:49:31,902 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:31,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:49:31,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:49:31,903 INFO L87 Difference]: Start difference. First operand 246 states and 370 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:32,917 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:34,940 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:36,962 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 [] [2022-02-15 00:49:37,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:37,843 INFO L93 Difference]: Finished difference Result 355 states and 531 transitions. [2022-02-15 00:49:37,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:49:37,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2022-02-15 00:49:37,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:37,845 INFO L225 Difference]: With dead ends: 355 [2022-02-15 00:49:37,845 INFO L226 Difference]: Without dead ends: 355 [2022-02-15 00:49:37,846 INFO L932 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 [2022-02-15 00:49:37,846 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 148 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:37,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-02-15 00:49:37,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-02-15 00:49:37,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 246. [2022-02-15 00:49:37,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5020746887966805) internal successors, (362), 241 states have internal predecessors, (362), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:37,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 366 transitions. [2022-02-15 00:49:37,851 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 366 transitions. Word has length 77 [2022-02-15 00:49:37,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:37,852 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 366 transitions. [2022-02-15 00:49:37,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:37,852 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 366 transitions. [2022-02-15 00:49:37,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-02-15 00:49:37,853 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:37,853 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:49:37,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-15 00:49:37,853 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:37,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:37,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1192836383, now seen corresponding path program 1 times [2022-02-15 00:49:37,854 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:37,854 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962167003] [2022-02-15 00:49:37,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:37,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:37,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:37,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:37,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:37,980 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:49:37,981 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:37,981 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962167003] [2022-02-15 00:49:37,981 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962167003] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:37,981 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:37,981 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:49:37,981 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138658098] [2022-02-15 00:49:37,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:37,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:49:37,982 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:37,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:49:37,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:49:37,982 INFO L87 Difference]: Start difference. First operand 246 states and 366 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:39,403 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 [] [2022-02-15 00:49:41,421 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:43,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:45,473 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 [] [2022-02-15 00:49:45,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:45,938 INFO L93 Difference]: Finished difference Result 355 states and 527 transitions. [2022-02-15 00:49:45,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:49:45,939 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2022-02-15 00:49:45,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:45,940 INFO L225 Difference]: With dead ends: 355 [2022-02-15 00:49:45,940 INFO L226 Difference]: Without dead ends: 355 [2022-02-15 00:49:45,940 INFO L932 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 [2022-02-15 00:49:45,941 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 146 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 63 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:45,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 472 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-02-15 00:49:45,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-02-15 00:49:45,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 246. [2022-02-15 00:49:45,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.4854771784232366) internal successors, (358), 241 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) [2022-02-15 00:49:45,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 362 transitions. [2022-02-15 00:49:45,947 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 362 transitions. Word has length 78 [2022-02-15 00:49:45,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:45,947 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 362 transitions. [2022-02-15 00:49:45,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:45,947 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 362 transitions. [2022-02-15 00:49:45,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-02-15 00:49:45,948 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:45,948 INFO L514 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] [2022-02-15 00:49:45,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-15 00:49:45,948 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:45,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:45,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1089053230, now seen corresponding path program 1 times [2022-02-15 00:49:45,949 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:45,949 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758912017] [2022-02-15 00:49:45,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:45,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:46,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:46,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:46,100 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:49:46,100 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:46,101 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758912017] [2022-02-15 00:49:46,101 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758912017] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:46,101 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:46,101 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:49:46,101 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967698299] [2022-02-15 00:49:46,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:46,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:49:46,101 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:46,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:49:46,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:49:46,102 INFO L87 Difference]: Start difference. First operand 246 states and 362 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:47,532 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:49,550 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:52,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:52,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:52,541 INFO L93 Difference]: Finished difference Result 353 states and 517 transitions. [2022-02-15 00:49:52,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:49:52,542 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have 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 [2022-02-15 00:49:52,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:52,543 INFO L225 Difference]: With dead ends: 353 [2022-02-15 00:49:52,543 INFO L226 Difference]: Without dead ends: 353 [2022-02-15 00:49:52,543 INFO L932 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 [2022-02-15 00:49:52,544 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 90 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:52,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 513 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 525 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-02-15 00:49:52,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-02-15 00:49:52,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 277. [2022-02-15 00:49:52,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 272 states have (on average 1.4926470588235294) internal successors, (406), 272 states have internal predecessors, (406), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:52,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 410 transitions. [2022-02-15 00:49:52,550 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 410 transitions. Word has length 82 [2022-02-15 00:49:52,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:52,550 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 410 transitions. [2022-02-15 00:49:52,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:52,550 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 410 transitions. [2022-02-15 00:49:52,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-02-15 00:49:52,551 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:52,551 INFO L514 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] [2022-02-15 00:49:52,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-15 00:49:52,552 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:52,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:52,552 INFO L85 PathProgramCache]: Analyzing trace with hash -63561231, now seen corresponding path program 1 times [2022-02-15 00:49:52,552 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:52,552 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558629247] [2022-02-15 00:49:52,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:52,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:52,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:52,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:52,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:52,664 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:49:52,664 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:52,664 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558629247] [2022-02-15 00:49:52,664 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558629247] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:52,664 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:52,664 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:49:52,664 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441153122] [2022-02-15 00:49:52,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:52,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:49:52,665 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:52,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:49:52,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:49:52,666 INFO L87 Difference]: Start difference. First operand 277 states and 410 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:55,957 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 [] [2022-02-15 00:49:57,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:57,191 INFO L93 Difference]: Finished difference Result 335 states and 491 transitions. [2022-02-15 00:49:57,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:49:57,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have 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 [2022-02-15 00:49:57,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:57,197 INFO L225 Difference]: With dead ends: 335 [2022-02-15 00:49:57,197 INFO L226 Difference]: Without dead ends: 335 [2022-02-15 00:49:57,197 INFO L932 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 [2022-02-15 00:49:57,198 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 37 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:57,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 605 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-02-15 00:49:57,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2022-02-15 00:49:57,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 301. [2022-02-15 00:49:57,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 296 states have (on average 1.4966216216216217) internal successors, (443), 296 states have internal predecessors, (443), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:57,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 447 transitions. [2022-02-15 00:49:57,204 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 447 transitions. Word has length 82 [2022-02-15 00:49:57,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:57,205 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 447 transitions. [2022-02-15 00:49:57,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:57,205 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 447 transitions. [2022-02-15 00:49:57,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-02-15 00:49:57,206 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:57,206 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:49:57,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-15 00:49:57,206 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:57,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:57,207 INFO L85 PathProgramCache]: Analyzing trace with hash 2130514276, now seen corresponding path program 1 times [2022-02-15 00:49:57,207 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:57,207 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100295126] [2022-02-15 00:49:57,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:57,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:57,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:57,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:57,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:57,366 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:49:57,366 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:57,367 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100295126] [2022-02-15 00:49:57,367 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100295126] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:57,367 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:57,367 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:49:57,367 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285035937] [2022-02-15 00:49:57,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:57,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:49:57,367 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:57,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:49:57,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:49:57,368 INFO L87 Difference]: Start difference. First operand 301 states and 447 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:59,377 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 [] [2022-02-15 00:49:59,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:59,897 INFO L93 Difference]: Finished difference Result 400 states and 594 transitions. [2022-02-15 00:49:59,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:49:59,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-02-15 00:49:59,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:59,899 INFO L225 Difference]: With dead ends: 400 [2022-02-15 00:49:59,899 INFO L226 Difference]: Without dead ends: 400 [2022-02-15 00:49:59,899 INFO L932 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 [2022-02-15 00:49:59,900 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 149 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:59,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 346 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 00:49:59,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-02-15 00:49:59,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 301. [2022-02-15 00:49:59,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 296 states have (on average 1.4763513513513513) internal successors, (437), 296 states have internal predecessors, (437), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:59,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 441 transitions. [2022-02-15 00:49:59,911 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 441 transitions. Word has length 87 [2022-02-15 00:49:59,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:59,911 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 441 transitions. [2022-02-15 00:49:59,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:59,912 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 441 transitions. [2022-02-15 00:49:59,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-02-15 00:49:59,913 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:59,913 INFO L514 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] [2022-02-15 00:49:59,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-15 00:49:59,913 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:59,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:59,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1881310108, now seen corresponding path program 1 times [2022-02-15 00:49:59,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:59,914 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042975609] [2022-02-15 00:49:59,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:59,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:59,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:00,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:00,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:00,028 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:50:00,028 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:00,028 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042975609] [2022-02-15 00:50:00,028 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042975609] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:00,028 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:00,028 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:50:00,029 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667465991] [2022-02-15 00:50:00,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:00,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:50:00,030 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:00,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:50:00,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:50:00,030 INFO L87 Difference]: Start difference. First operand 301 states and 441 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:01,105 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:04,373 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:04,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:04,849 INFO L93 Difference]: Finished difference Result 429 states and 638 transitions. [2022-02-15 00:50:04,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:50:04,849 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 88 [2022-02-15 00:50:04,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:04,851 INFO L225 Difference]: With dead ends: 429 [2022-02-15 00:50:04,851 INFO L226 Difference]: Without dead ends: 429 [2022-02-15 00:50:04,851 INFO L932 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 [2022-02-15 00:50:04,852 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 120 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:04,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 348 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-02-15 00:50:04,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-02-15 00:50:04,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 351. [2022-02-15 00:50:04,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 346 states have (on average 1.5115606936416186) internal successors, (523), 346 states have internal predecessors, (523), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:04,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 527 transitions. [2022-02-15 00:50:04,859 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 527 transitions. Word has length 88 [2022-02-15 00:50:04,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:04,859 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 527 transitions. [2022-02-15 00:50:04,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:04,860 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 527 transitions. [2022-02-15 00:50:04,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-02-15 00:50:04,861 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:04,861 INFO L514 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] [2022-02-15 00:50:04,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-15 00:50:04,861 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:04,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:04,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1779498248, now seen corresponding path program 1 times [2022-02-15 00:50:04,862 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:04,862 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825212101] [2022-02-15 00:50:04,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:04,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:04,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:04,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:04,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:04,978 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:50:04,978 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:04,979 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825212101] [2022-02-15 00:50:04,979 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825212101] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:04,979 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:04,979 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:50:04,979 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621565601] [2022-02-15 00:50:04,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:04,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:50:04,979 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:04,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:50:04,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:50:04,980 INFO L87 Difference]: Start difference. First operand 351 states and 527 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:06,990 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 [] [2022-02-15 00:50:07,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:07,464 INFO L93 Difference]: Finished difference Result 409 states and 609 transitions. [2022-02-15 00:50:07,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:50:07,464 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2022-02-15 00:50:07,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:07,466 INFO L225 Difference]: With dead ends: 409 [2022-02-15 00:50:07,466 INFO L226 Difference]: Without dead ends: 409 [2022-02-15 00:50:07,467 INFO L932 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 [2022-02-15 00:50:07,467 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 67 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:07,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 483 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 493 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 00:50:07,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2022-02-15 00:50:07,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 362. [2022-02-15 00:50:07,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.5210084033613445) internal successors, (543), 357 states have internal predecessors, (543), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:07,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 547 transitions. [2022-02-15 00:50:07,474 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 547 transitions. Word has length 89 [2022-02-15 00:50:07,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:07,474 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 547 transitions. [2022-02-15 00:50:07,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:07,474 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 547 transitions. [2022-02-15 00:50:07,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-02-15 00:50:07,475 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:07,475 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-02-15 00:50:07,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-15 00:50:07,476 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:07,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:07,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1616616152, now seen corresponding path program 1 times [2022-02-15 00:50:07,476 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:07,476 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435897791] [2022-02-15 00:50:07,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:07,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:07,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:07,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:07,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:07,590 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:50:07,591 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:07,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435897791] [2022-02-15 00:50:07,591 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435897791] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:07,591 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:07,591 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:50:07,591 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760524588] [2022-02-15 00:50:07,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:07,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:50:07,592 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:07,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:50:07,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:50:07,592 INFO L87 Difference]: Start difference. First operand 362 states and 547 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:08,725 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:10,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:12,447 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:12,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:12,881 INFO L93 Difference]: Finished difference Result 451 states and 675 transitions. [2022-02-15 00:50:12,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:50:12,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2022-02-15 00:50:12,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:12,883 INFO L225 Difference]: With dead ends: 451 [2022-02-15 00:50:12,883 INFO L226 Difference]: Without dead ends: 451 [2022-02-15 00:50:12,884 INFO L932 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 [2022-02-15 00:50:12,884 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 142 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:12,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 348 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 473 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-02-15 00:50:12,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-02-15 00:50:12,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 362. [2022-02-15 00:50:12,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.5070028011204482) internal successors, (538), 357 states have internal predecessors, (538), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:12,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 542 transitions. [2022-02-15 00:50:12,891 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 542 transitions. Word has length 96 [2022-02-15 00:50:12,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:12,891 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 542 transitions. [2022-02-15 00:50:12,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:12,891 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 542 transitions. [2022-02-15 00:50:12,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-02-15 00:50:12,892 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:12,892 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:50:12,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-15 00:50:12,893 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:12,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:12,893 INFO L85 PathProgramCache]: Analyzing trace with hash -368196464, now seen corresponding path program 1 times [2022-02-15 00:50:12,893 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:12,893 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504862281] [2022-02-15 00:50:12,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:12,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:12,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:13,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:13,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:13,005 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:50:13,006 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:13,006 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504862281] [2022-02-15 00:50:13,006 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504862281] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:13,006 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:13,006 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:50:13,006 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090220600] [2022-02-15 00:50:13,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:13,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:50:13,007 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:13,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:50:13,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:50:13,007 INFO L87 Difference]: Start difference. First operand 362 states and 542 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) [2022-02-15 00:50:15,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:18,120 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:18,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:18,522 INFO L93 Difference]: Finished difference Result 441 states and 656 transitions. [2022-02-15 00:50:18,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:50:18,522 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2022-02-15 00:50:18,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:18,524 INFO L225 Difference]: With dead ends: 441 [2022-02-15 00:50:18,524 INFO L226 Difference]: Without dead ends: 441 [2022-02-15 00:50:18,524 INFO L932 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 [2022-02-15 00:50:18,524 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 139 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:18,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 368 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-02-15 00:50:18,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-02-15 00:50:18,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 362. [2022-02-15 00:50:18,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.4901960784313726) internal successors, (532), 357 states have internal predecessors, (532), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:18,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 536 transitions. [2022-02-15 00:50:18,531 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 536 transitions. Word has length 97 [2022-02-15 00:50:18,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:18,532 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 536 transitions. [2022-02-15 00:50:18,532 INFO L471 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) [2022-02-15 00:50:18,532 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 536 transitions. [2022-02-15 00:50:18,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-02-15 00:50:18,533 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:18,533 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:50:18,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-15 00:50:18,533 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:18,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:18,534 INFO L85 PathProgramCache]: Analyzing trace with hash -102121424, now seen corresponding path program 1 times [2022-02-15 00:50:18,534 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:18,534 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243186098] [2022-02-15 00:50:18,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:18,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:18,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:18,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:18,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:18,642 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:50:18,643 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:18,643 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243186098] [2022-02-15 00:50:18,643 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243186098] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:18,643 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:18,643 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:50:18,643 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965689881] [2022-02-15 00:50:18,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:18,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:50:18,644 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:18,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:50:18,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:50:18,644 INFO L87 Difference]: Start difference. First operand 362 states and 536 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:19,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:21,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:23,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:23,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:23,920 INFO L93 Difference]: Finished difference Result 397 states and 582 transitions. [2022-02-15 00:50:23,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:50:23,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-02-15 00:50:23,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:23,922 INFO L225 Difference]: With dead ends: 397 [2022-02-15 00:50:23,922 INFO L226 Difference]: Without dead ends: 397 [2022-02-15 00:50:23,922 INFO L932 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 [2022-02-15 00:50:23,923 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 73 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:23,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 515 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-02-15 00:50:23,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2022-02-15 00:50:23,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 362. [2022-02-15 00:50:23,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.4873949579831933) internal successors, (531), 357 states have internal predecessors, (531), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:23,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 535 transitions. [2022-02-15 00:50:23,929 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 535 transitions. Word has length 104 [2022-02-15 00:50:23,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:23,929 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 535 transitions. [2022-02-15 00:50:23,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:23,930 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 535 transitions. [2022-02-15 00:50:23,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-02-15 00:50:23,931 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:23,931 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:50:23,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-15 00:50:23,931 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:23,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:23,931 INFO L85 PathProgramCache]: Analyzing trace with hash -81784049, now seen corresponding path program 1 times [2022-02-15 00:50:23,932 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:23,932 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018038080] [2022-02-15 00:50:23,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:23,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:23,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:24,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:24,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:24,040 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-02-15 00:50:24,040 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:24,040 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018038080] [2022-02-15 00:50:24,040 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018038080] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:24,041 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:24,041 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:50:24,041 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063255817] [2022-02-15 00:50:24,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:24,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:50:24,041 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:24,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:50:24,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:50:24,042 INFO L87 Difference]: Start difference. First operand 362 states and 535 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:25,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:27,340 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 [] [2022-02-15 00:50:28,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:28,398 INFO L93 Difference]: Finished difference Result 693 states and 1026 transitions. [2022-02-15 00:50:28,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:50:28,399 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-02-15 00:50:28,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:28,401 INFO L225 Difference]: With dead ends: 693 [2022-02-15 00:50:28,401 INFO L226 Difference]: Without dead ends: 693 [2022-02-15 00:50:28,401 INFO L932 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 [2022-02-15 00:50:28,402 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 143 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:28,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 435 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 283 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-02-15 00:50:28,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2022-02-15 00:50:28,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 693. [2022-02-15 00:50:28,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 688 states have (on average 1.4854651162790697) internal successors, (1022), 688 states have internal predecessors, (1022), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:28,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1026 transitions. [2022-02-15 00:50:28,412 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1026 transitions. Word has length 104 [2022-02-15 00:50:28,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:28,412 INFO L470 AbstractCegarLoop]: Abstraction has 693 states and 1026 transitions. [2022-02-15 00:50:28,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:28,412 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1026 transitions. [2022-02-15 00:50:28,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-02-15 00:50:28,414 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:28,414 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:50:28,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-15 00:50:28,414 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:28,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:28,414 INFO L85 PathProgramCache]: Analyzing trace with hash -2012403154, now seen corresponding path program 1 times [2022-02-15 00:50:28,415 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:28,415 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151010887] [2022-02-15 00:50:28,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:28,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:28,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:28,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:28,503 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-02-15 00:50:28,504 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:28,504 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151010887] [2022-02-15 00:50:28,504 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151010887] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:28,504 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:28,504 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:50:28,504 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010162563] [2022-02-15 00:50:28,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:28,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:50:28,505 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:28,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:50:28,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:50:28,505 INFO L87 Difference]: Start difference. First operand 693 states and 1026 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:30,519 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 [] [2022-02-15 00:50:30,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:30,764 INFO L93 Difference]: Finished difference Result 720 states and 1061 transitions. [2022-02-15 00:50:30,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:50:30,765 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-02-15 00:50:30,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:30,767 INFO L225 Difference]: With dead ends: 720 [2022-02-15 00:50:30,767 INFO L226 Difference]: Without dead ends: 720 [2022-02-15 00:50:30,767 INFO L932 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 [2022-02-15 00:50:30,768 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:30,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 417 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 247 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:50:30,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2022-02-15 00:50:30,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 720. [2022-02-15 00:50:30,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 715 states have (on average 1.4783216783216784) internal successors, (1057), 715 states have internal predecessors, (1057), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:30,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1061 transitions. [2022-02-15 00:50:30,778 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1061 transitions. Word has length 104 [2022-02-15 00:50:30,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:30,778 INFO L470 AbstractCegarLoop]: Abstraction has 720 states and 1061 transitions. [2022-02-15 00:50:30,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:30,778 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1061 transitions. [2022-02-15 00:50:30,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-02-15 00:50:30,780 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:30,780 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:50:30,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-15 00:50:30,780 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:30,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:30,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1592886323, now seen corresponding path program 1 times [2022-02-15 00:50:30,781 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:30,781 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896688095] [2022-02-15 00:50:30,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:30,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:30,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:30,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:30,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:30,867 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-02-15 00:50:30,867 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:30,867 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896688095] [2022-02-15 00:50:30,867 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896688095] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:30,867 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:30,867 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:50:30,867 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428639694] [2022-02-15 00:50:30,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:30,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:50:30,868 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:30,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:50:30,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:50:30,868 INFO L87 Difference]: Start difference. First operand 720 states and 1061 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:33,038 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 [] [2022-02-15 00:50:33,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:33,542 INFO L93 Difference]: Finished difference Result 722 states and 1063 transitions. [2022-02-15 00:50:33,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:50:33,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-02-15 00:50:33,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:33,544 INFO L225 Difference]: With dead ends: 722 [2022-02-15 00:50:33,544 INFO L226 Difference]: Without dead ends: 722 [2022-02-15 00:50:33,544 INFO L932 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 [2022-02-15 00:50:33,545 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:33,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 396 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-02-15 00:50:33,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2022-02-15 00:50:33,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 722. [2022-02-15 00:50:33,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 717 states have (on average 1.4769874476987448) internal successors, (1059), 717 states have internal predecessors, (1059), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:33,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 1063 transitions. [2022-02-15 00:50:33,555 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 1063 transitions. Word has length 104 [2022-02-15 00:50:33,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:33,555 INFO L470 AbstractCegarLoop]: Abstraction has 722 states and 1063 transitions. [2022-02-15 00:50:33,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:33,556 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 1063 transitions. [2022-02-15 00:50:33,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-02-15 00:50:33,557 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:33,557 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:50:33,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-15 00:50:33,557 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:33,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:33,558 INFO L85 PathProgramCache]: Analyzing trace with hash -276398424, now seen corresponding path program 1 times [2022-02-15 00:50:33,558 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:33,558 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456730169] [2022-02-15 00:50:33,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:33,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:33,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:33,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:33,664 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:50:33,664 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:33,664 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456730169] [2022-02-15 00:50:33,664 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456730169] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:33,664 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:33,664 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:50:33,665 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117468881] [2022-02-15 00:50:33,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:33,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:50:33,665 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:33,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:50:33,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:50:33,666 INFO L87 Difference]: Start difference. First operand 722 states and 1063 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 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) [2022-02-15 00:50:36,196 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:37,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:37,454 INFO L93 Difference]: Finished difference Result 1058 states and 1566 transitions. [2022-02-15 00:50:37,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:50:37,455 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 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 106 [2022-02-15 00:50:37,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:37,458 INFO L225 Difference]: With dead ends: 1058 [2022-02-15 00:50:37,458 INFO L226 Difference]: Without dead ends: 1058 [2022-02-15 00:50:37,458 INFO L932 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 [2022-02-15 00:50:37,459 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 164 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:37,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 379 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-02-15 00:50:37,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2022-02-15 00:50:37,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 1056. [2022-02-15 00:50:37,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1056 states, 1051 states have (on average 1.4852521408182684) internal successors, (1561), 1051 states have internal predecessors, (1561), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:37,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1565 transitions. [2022-02-15 00:50:37,474 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1565 transitions. Word has length 106 [2022-02-15 00:50:37,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:37,474 INFO L470 AbstractCegarLoop]: Abstraction has 1056 states and 1565 transitions. [2022-02-15 00:50:37,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 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) [2022-02-15 00:50:37,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1565 transitions. [2022-02-15 00:50:37,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-02-15 00:50:37,476 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:37,476 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:50:37,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-15 00:50:37,476 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:37,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:37,477 INFO L85 PathProgramCache]: Analyzing trace with hash 55993698, now seen corresponding path program 1 times [2022-02-15 00:50:37,477 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:37,477 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937910265] [2022-02-15 00:50:37,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:37,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:37,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:37,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:37,580 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:50:37,580 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:37,580 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937910265] [2022-02-15 00:50:37,580 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937910265] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:37,580 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:37,580 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:50:37,580 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337482036] [2022-02-15 00:50:37,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:37,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:50:37,581 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:37,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:50:37,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:50:37,581 INFO L87 Difference]: Start difference. First operand 1056 states and 1565 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) [2022-02-15 00:50:40,463 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:42,483 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:42,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:42,968 INFO L93 Difference]: Finished difference Result 1392 states and 2054 transitions. [2022-02-15 00:50:42,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:50:42,968 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 113 [2022-02-15 00:50:42,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:42,971 INFO L225 Difference]: With dead ends: 1392 [2022-02-15 00:50:42,971 INFO L226 Difference]: Without dead ends: 1392 [2022-02-15 00:50:42,972 INFO L932 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 [2022-02-15 00:50:42,972 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:42,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 576 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 426 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2022-02-15 00:50:42,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2022-02-15 00:50:42,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1390. [2022-02-15 00:50:42,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1385 states have (on average 1.47942238267148) internal successors, (2049), 1385 states have internal predecessors, (2049), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:42,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 2053 transitions. [2022-02-15 00:50:42,991 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 2053 transitions. Word has length 113 [2022-02-15 00:50:42,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:42,991 INFO L470 AbstractCegarLoop]: Abstraction has 1390 states and 2053 transitions. [2022-02-15 00:50:42,991 INFO L471 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) [2022-02-15 00:50:42,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 2053 transitions. [2022-02-15 00:50:42,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-02-15 00:50:42,993 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:42,994 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:50:42,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-15 00:50:42,994 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:42,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:42,994 INFO L85 PathProgramCache]: Analyzing trace with hash -141195902, now seen corresponding path program 1 times [2022-02-15 00:50:42,994 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:42,994 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063172897] [2022-02-15 00:50:42,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:42,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:43,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:43,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:43,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:43,135 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:50:43,136 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:43,136 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063172897] [2022-02-15 00:50:43,136 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063172897] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:43,136 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:43,136 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:50:43,136 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151712923] [2022-02-15 00:50:43,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:43,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:50:43,136 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:43,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:50:43,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:50:43,137 INFO L87 Difference]: Start difference. First operand 1390 states and 2053 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) [2022-02-15 00:50:45,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:45,942 INFO L93 Difference]: Finished difference Result 1700 states and 2501 transitions. [2022-02-15 00:50:45,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:50:45,943 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 130 [2022-02-15 00:50:45,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:45,947 INFO L225 Difference]: With dead ends: 1700 [2022-02-15 00:50:45,947 INFO L226 Difference]: Without dead ends: 1700 [2022-02-15 00:50:45,947 INFO L932 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 [2022-02-15 00:50:45,947 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 109 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:45,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 388 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-02-15 00:50:45,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2022-02-15 00:50:45,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 1394. [2022-02-15 00:50:45,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1389 states have (on average 1.4838012958963283) internal successors, (2061), 1389 states have internal predecessors, (2061), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:45,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 2065 transitions. [2022-02-15 00:50:45,968 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 2065 transitions. Word has length 130 [2022-02-15 00:50:45,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:45,968 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 2065 transitions. [2022-02-15 00:50:45,969 INFO L471 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) [2022-02-15 00:50:45,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 2065 transitions. [2022-02-15 00:50:45,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-15 00:50:45,971 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:45,971 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:50:45,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-15 00:50:45,972 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:45,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:45,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1588802902, now seen corresponding path program 1 times [2022-02-15 00:50:45,972 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:45,972 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989853492] [2022-02-15 00:50:45,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:45,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:46,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:46,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:46,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:46,101 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-02-15 00:50:46,102 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:46,102 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989853492] [2022-02-15 00:50:46,102 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989853492] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:46,102 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:46,102 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:50:46,102 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183470810] [2022-02-15 00:50:46,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:46,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:50:46,103 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:46,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:50:46,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:50:46,103 INFO L87 Difference]: Start difference. First operand 1394 states and 2065 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:47,549 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:49,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:49,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:49,704 INFO L93 Difference]: Finished difference Result 1731 states and 2565 transitions. [2022-02-15 00:50:49,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:50:49,705 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-02-15 00:50:49,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:49,736 INFO L225 Difference]: With dead ends: 1731 [2022-02-15 00:50:49,736 INFO L226 Difference]: Without dead ends: 1731 [2022-02-15 00:50:49,737 INFO L932 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 [2022-02-15 00:50:49,742 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 165 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:49,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 378 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-02-15 00:50:49,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2022-02-15 00:50:49,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 1729. [2022-02-15 00:50:49,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1729 states, 1724 states have (on average 1.4849187935034802) internal successors, (2560), 1724 states have internal predecessors, (2560), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:49,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1729 states to 1729 states and 2564 transitions. [2022-02-15 00:50:49,765 INFO L78 Accepts]: Start accepts. Automaton has 1729 states and 2564 transitions. Word has length 134 [2022-02-15 00:50:49,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:49,766 INFO L470 AbstractCegarLoop]: Abstraction has 1729 states and 2564 transitions. [2022-02-15 00:50:49,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:49,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1729 states and 2564 transitions. [2022-02-15 00:50:49,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-02-15 00:50:49,768 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:49,769 INFO L514 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, 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] [2022-02-15 00:50:49,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-15 00:50:49,769 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:49,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:49,770 INFO L85 PathProgramCache]: Analyzing trace with hash 942182169, now seen corresponding path program 1 times [2022-02-15 00:50:49,770 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:49,770 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131337508] [2022-02-15 00:50:49,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:49,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:49,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:49,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:49,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:49,890 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:50:49,890 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:49,891 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131337508] [2022-02-15 00:50:49,891 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131337508] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:49,891 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:49,891 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:50:49,891 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012335457] [2022-02-15 00:50:49,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:49,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:50:49,891 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:49,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:50:49,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:50:49,892 INFO L87 Difference]: Start difference. First operand 1729 states and 2564 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:52,837 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:53,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:53,686 INFO L93 Difference]: Finished difference Result 2436 states and 3618 transitions. [2022-02-15 00:50:53,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:50:53,686 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-02-15 00:50:53,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:53,692 INFO L225 Difference]: With dead ends: 2436 [2022-02-15 00:50:53,692 INFO L226 Difference]: Without dead ends: 2436 [2022-02-15 00:50:53,693 INFO L932 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 [2022-02-15 00:50:53,693 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 115 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:53,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 378 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-02-15 00:50:53,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2436 states. [2022-02-15 00:50:53,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2436 to 2049. [2022-02-15 00:50:53,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2049 states, 2044 states have (on average 1.4921722113502935) internal successors, (3050), 2044 states have internal predecessors, (3050), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:53,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2049 states to 2049 states and 3054 transitions. [2022-02-15 00:50:53,718 INFO L78 Accepts]: Start accepts. Automaton has 2049 states and 3054 transitions. Word has length 158 [2022-02-15 00:50:53,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:53,719 INFO L470 AbstractCegarLoop]: Abstraction has 2049 states and 3054 transitions. [2022-02-15 00:50:53,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:53,719 INFO L276 IsEmpty]: Start isEmpty. Operand 2049 states and 3054 transitions. [2022-02-15 00:50:53,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-02-15 00:50:53,722 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:53,722 INFO L514 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:50:53,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-15 00:50:53,722 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:53,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:53,723 INFO L85 PathProgramCache]: Analyzing trace with hash -558884997, now seen corresponding path program 1 times [2022-02-15 00:50:53,723 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:53,723 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009122056] [2022-02-15 00:50:53,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:53,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:53,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:53,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:53,853 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:50:53,854 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:53,854 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009122056] [2022-02-15 00:50:53,854 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009122056] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:53,854 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:53,854 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:50:53,854 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418420592] [2022-02-15 00:50:53,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:53,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:50:53,855 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:53,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:50:53,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:50:53,855 INFO L87 Difference]: Start difference. First operand 2049 states and 3054 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) [2022-02-15 00:50:54,925 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 [] [2022-02-15 00:50:56,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:58,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:59,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:59,032 INFO L93 Difference]: Finished difference Result 2372 states and 3518 transitions. [2022-02-15 00:50:59,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:50:59,033 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 163 [2022-02-15 00:50:59,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:59,038 INFO L225 Difference]: With dead ends: 2372 [2022-02-15 00:50:59,038 INFO L226 Difference]: Without dead ends: 2372 [2022-02-15 00:50:59,038 INFO L932 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 [2022-02-15 00:50:59,038 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 68 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:59,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 642 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-02-15 00:50:59,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2372 states. [2022-02-15 00:50:59,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2372 to 2197. [2022-02-15 00:50:59,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2197 states, 2192 states have (on average 1.4972627737226278) internal successors, (3282), 2192 states have internal predecessors, (3282), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:59,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2197 states to 2197 states and 3286 transitions. [2022-02-15 00:50:59,063 INFO L78 Accepts]: Start accepts. Automaton has 2197 states and 3286 transitions. Word has length 163 [2022-02-15 00:50:59,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:59,063 INFO L470 AbstractCegarLoop]: Abstraction has 2197 states and 3286 transitions. [2022-02-15 00:50:59,063 INFO L471 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) [2022-02-15 00:50:59,063 INFO L276 IsEmpty]: Start isEmpty. Operand 2197 states and 3286 transitions. [2022-02-15 00:50:59,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-02-15 00:50:59,067 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:59,067 INFO L514 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:50:59,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-15 00:50:59,067 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:59,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:59,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1368588268, now seen corresponding path program 1 times [2022-02-15 00:50:59,068 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:59,068 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812904551] [2022-02-15 00:50:59,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:59,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:59,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:59,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:59,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:59,192 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:50:59,193 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:59,193 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812904551] [2022-02-15 00:50:59,193 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812904551] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:59,193 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:59,193 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:50:59,193 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847583183] [2022-02-15 00:50:59,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:59,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:50:59,193 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:59,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:50:59,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:50:59,194 INFO L87 Difference]: Start difference. First operand 2197 states and 3286 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:01,119 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:03,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:04,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:51:04,378 INFO L93 Difference]: Finished difference Result 2524 states and 3720 transitions. [2022-02-15 00:51:04,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:51:04,378 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have 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 [2022-02-15 00:51:04,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:51:04,384 INFO L225 Difference]: With dead ends: 2524 [2022-02-15 00:51:04,384 INFO L226 Difference]: Without dead ends: 2524 [2022-02-15 00:51:04,385 INFO L932 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 [2022-02-15 00:51:04,385 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 110 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:51:04,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 366 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-02-15 00:51:04,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2524 states. [2022-02-15 00:51:04,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2524 to 2197. [2022-02-15 00:51:04,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2197 states, 2192 states have (on average 1.4927007299270072) internal successors, (3272), 2192 states have internal predecessors, (3272), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:04,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2197 states to 2197 states and 3276 transitions. [2022-02-15 00:51:04,410 INFO L78 Accepts]: Start accepts. Automaton has 2197 states and 3276 transitions. Word has length 164 [2022-02-15 00:51:04,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:51:04,410 INFO L470 AbstractCegarLoop]: Abstraction has 2197 states and 3276 transitions. [2022-02-15 00:51:04,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:04,410 INFO L276 IsEmpty]: Start isEmpty. Operand 2197 states and 3276 transitions. [2022-02-15 00:51:04,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-02-15 00:51:04,414 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:51:04,414 INFO L514 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] [2022-02-15 00:51:04,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-15 00:51:04,414 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:51:04,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:51:04,415 INFO L85 PathProgramCache]: Analyzing trace with hash 45595843, now seen corresponding path program 1 times [2022-02-15 00:51:04,415 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:51:04,415 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352320146] [2022-02-15 00:51:04,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:51:04,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:51:04,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:04,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:51:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:04,536 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-02-15 00:51:04,536 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:51:04,536 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352320146] [2022-02-15 00:51:04,536 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352320146] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:51:04,536 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:51:04,536 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:51:04,536 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189562756] [2022-02-15 00:51:04,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:51:04,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:51:04,537 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:51:04,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:51:04,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:51:04,537 INFO L87 Difference]: Start difference. First operand 2197 states and 3276 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:05,933 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 [] [2022-02-15 00:51:06,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:51:06,635 INFO L93 Difference]: Finished difference Result 2627 states and 3920 transitions. [2022-02-15 00:51:06,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:51:06,635 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 172 [2022-02-15 00:51:06,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:51:06,643 INFO L225 Difference]: With dead ends: 2627 [2022-02-15 00:51:06,643 INFO L226 Difference]: Without dead ends: 2627 [2022-02-15 00:51:06,643 INFO L932 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 [2022-02-15 00:51:06,643 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 140 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:51:06,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 576 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-02-15 00:51:06,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2627 states. [2022-02-15 00:51:06,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2627 to 2627. [2022-02-15 00:51:06,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2627 states, 2622 states have (on average 1.4935163996948895) internal successors, (3916), 2622 states have internal predecessors, (3916), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:06,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 3920 transitions. [2022-02-15 00:51:06,676 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 3920 transitions. Word has length 172 [2022-02-15 00:51:06,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:51:06,677 INFO L470 AbstractCegarLoop]: Abstraction has 2627 states and 3920 transitions. [2022-02-15 00:51:06,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:06,677 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 3920 transitions. [2022-02-15 00:51:06,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-02-15 00:51:06,681 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:51:06,681 INFO L514 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] [2022-02-15 00:51:06,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-15 00:51:06,681 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:51:06,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:51:06,682 INFO L85 PathProgramCache]: Analyzing trace with hash 169669090, now seen corresponding path program 1 times [2022-02-15 00:51:06,682 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:51:06,682 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556817464] [2022-02-15 00:51:06,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:51:06,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:51:06,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:06,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:51:06,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:06,805 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:51:06,805 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:51:06,805 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556817464] [2022-02-15 00:51:06,805 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556817464] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:51:06,805 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:51:06,805 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:51:06,805 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324551599] [2022-02-15 00:51:06,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:51:06,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:51:06,805 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:51:06,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:51:06,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:51:06,807 INFO L87 Difference]: Start difference. First operand 2627 states and 3920 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:08,228 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 [] [2022-02-15 00:51:10,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:12,101 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:12,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:51:12,527 INFO L93 Difference]: Finished difference Result 3027 states and 4516 transitions. [2022-02-15 00:51:12,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:51:12,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 172 [2022-02-15 00:51:12,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:51:12,534 INFO L225 Difference]: With dead ends: 3027 [2022-02-15 00:51:12,535 INFO L226 Difference]: Without dead ends: 3027 [2022-02-15 00:51:12,535 INFO L932 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 [2022-02-15 00:51:12,535 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 139 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-15 00:51:12,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 574 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 422 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-02-15 00:51:12,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3027 states. [2022-02-15 00:51:12,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3027 to 3027. [2022-02-15 00:51:12,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3027 states, 3022 states have (on average 1.4930509596293846) internal successors, (4512), 3022 states have internal predecessors, (4512), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:12,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3027 states to 3027 states and 4516 transitions. [2022-02-15 00:51:12,567 INFO L78 Accepts]: Start accepts. Automaton has 3027 states and 4516 transitions. Word has length 172 [2022-02-15 00:51:12,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:51:12,567 INFO L470 AbstractCegarLoop]: Abstraction has 3027 states and 4516 transitions. [2022-02-15 00:51:12,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:12,568 INFO L276 IsEmpty]: Start isEmpty. Operand 3027 states and 4516 transitions. [2022-02-15 00:51:12,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-02-15 00:51:12,591 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:51:12,591 INFO L514 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:51:12,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-15 00:51:12,592 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:51:12,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:51:12,592 INFO L85 PathProgramCache]: Analyzing trace with hash -157505020, now seen corresponding path program 1 times [2022-02-15 00:51:12,592 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:51:12,592 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825670310] [2022-02-15 00:51:12,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:51:12,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:51:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:12,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:51:12,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:12,737 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-02-15 00:51:12,737 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:51:12,737 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825670310] [2022-02-15 00:51:12,737 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825670310] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:51:12,737 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:51:12,737 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:51:12,737 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674228064] [2022-02-15 00:51:12,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:51:12,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:51:12,738 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:51:12,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:51:12,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:51:12,739 INFO L87 Difference]: Start difference. First operand 3027 states and 4516 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:14,155 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 [] [2022-02-15 00:51:15,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:51:15,979 INFO L93 Difference]: Finished difference Result 3745 states and 5532 transitions. [2022-02-15 00:51:15,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:51:15,980 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 210 [2022-02-15 00:51:15,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:51:15,986 INFO L225 Difference]: With dead ends: 3745 [2022-02-15 00:51:15,986 INFO L226 Difference]: Without dead ends: 3745 [2022-02-15 00:51:15,986 INFO L932 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 [2022-02-15 00:51:15,986 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 110 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:51:15,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 368 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-02-15 00:51:15,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3745 states. [2022-02-15 00:51:16,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3745 to 3064. [2022-02-15 00:51:16,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3064 states, 3059 states have (on average 1.491663942464858) internal successors, (4563), 3059 states have internal predecessors, (4563), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:16,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3064 states to 3064 states and 4567 transitions. [2022-02-15 00:51:16,021 INFO L78 Accepts]: Start accepts. Automaton has 3064 states and 4567 transitions. Word has length 210 [2022-02-15 00:51:16,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:51:16,021 INFO L470 AbstractCegarLoop]: Abstraction has 3064 states and 4567 transitions. [2022-02-15 00:51:16,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:16,021 INFO L276 IsEmpty]: Start isEmpty. Operand 3064 states and 4567 transitions. [2022-02-15 00:51:16,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-02-15 00:51:16,026 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:51:16,026 INFO L514 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:51:16,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-15 00:51:16,027 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:51:16,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:51:16,027 INFO L85 PathProgramCache]: Analyzing trace with hash 918566897, now seen corresponding path program 1 times [2022-02-15 00:51:16,027 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:51:16,027 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188862198] [2022-02-15 00:51:16,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:51:16,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:51:16,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:16,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:51:16,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:16,193 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 262 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-02-15 00:51:16,193 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:51:16,193 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188862198] [2022-02-15 00:51:16,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188862198] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:51:16,194 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:51:16,194 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:51:16,194 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360419611] [2022-02-15 00:51:16,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:51:16,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:51:16,194 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:51:16,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:51:16,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:51:16,195 INFO L87 Difference]: Start difference. First operand 3064 states and 4567 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:18,122 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 [] [2022-02-15 00:51:19,211 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 [] [2022-02-15 00:51:20,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:51:20,475 INFO L93 Difference]: Finished difference Result 3756 states and 5536 transitions. [2022-02-15 00:51:20,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:51:20,476 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 219 [2022-02-15 00:51:20,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:51:20,481 INFO L225 Difference]: With dead ends: 3756 [2022-02-15 00:51:20,481 INFO L226 Difference]: Without dead ends: 3756 [2022-02-15 00:51:20,481 INFO L932 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 [2022-02-15 00:51:20,482 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 104 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:51:20,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 369 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-02-15 00:51:20,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3756 states. [2022-02-15 00:51:20,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3756 to 3325. [2022-02-15 00:51:20,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3325 states, 3320 states have (on average 1.4951807228915663) internal successors, (4964), 3320 states have internal predecessors, (4964), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:20,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3325 states to 3325 states and 4968 transitions. [2022-02-15 00:51:20,517 INFO L78 Accepts]: Start accepts. Automaton has 3325 states and 4968 transitions. Word has length 219 [2022-02-15 00:51:20,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:51:20,517 INFO L470 AbstractCegarLoop]: Abstraction has 3325 states and 4968 transitions. [2022-02-15 00:51:20,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:20,518 INFO L276 IsEmpty]: Start isEmpty. Operand 3325 states and 4968 transitions. [2022-02-15 00:51:20,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-02-15 00:51:20,522 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:51:20,522 INFO L514 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:51:20,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-15 00:51:20,523 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:51:20,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:51:20,523 INFO L85 PathProgramCache]: Analyzing trace with hash 665229166, now seen corresponding path program 1 times [2022-02-15 00:51:20,523 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:51:20,523 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621423923] [2022-02-15 00:51:20,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:51:20,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:51:20,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:20,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:51:20,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:20,697 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 262 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-02-15 00:51:20,697 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:51:20,697 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621423923] [2022-02-15 00:51:20,697 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621423923] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:51:20,698 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:51:20,698 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:51:20,698 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655892119] [2022-02-15 00:51:20,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:51:20,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:51:20,698 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:51:20,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:51:20,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:51:20,699 INFO L87 Difference]: Start difference. First operand 3325 states and 4968 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:21,862 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 [] [2022-02-15 00:51:23,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:25,160 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:25,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:51:25,601 INFO L93 Difference]: Finished difference Result 3771 states and 5562 transitions. [2022-02-15 00:51:25,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:51:25,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 220 [2022-02-15 00:51:25,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:51:25,607 INFO L225 Difference]: With dead ends: 3771 [2022-02-15 00:51:25,607 INFO L226 Difference]: Without dead ends: 3757 [2022-02-15 00:51:25,607 INFO L932 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 [2022-02-15 00:51:25,608 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 105 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:51:25,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 388 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-02-15 00:51:25,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3757 states. [2022-02-15 00:51:25,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3757 to 3336. [2022-02-15 00:51:25,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3336 states, 3331 states have (on average 1.495046532572801) internal successors, (4980), 3331 states have internal predecessors, (4980), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:25,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 4984 transitions. [2022-02-15 00:51:25,640 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 4984 transitions. Word has length 220 [2022-02-15 00:51:25,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:51:25,641 INFO L470 AbstractCegarLoop]: Abstraction has 3336 states and 4984 transitions. [2022-02-15 00:51:25,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:25,641 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 4984 transitions. [2022-02-15 00:51:25,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-02-15 00:51:25,645 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:51:25,645 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:51:25,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-15 00:51:25,646 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:51:25,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:51:25,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1032687453, now seen corresponding path program 1 times [2022-02-15 00:51:25,646 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:51:25,646 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320356093] [2022-02-15 00:51:25,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:51:25,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:51:25,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:25,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:51:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:25,820 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 346 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-02-15 00:51:25,820 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:51:25,820 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320356093] [2022-02-15 00:51:25,821 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320356093] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:51:25,821 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:51:25,821 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:51:25,821 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997148740] [2022-02-15 00:51:25,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:51:25,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:51:25,822 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:51:25,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:51:25,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:51:25,823 INFO L87 Difference]: Start difference. First operand 3336 states and 4984 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) [2022-02-15 00:51:27,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:29,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:30,936 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 [] [2022-02-15 00:51:31,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:51:31,339 INFO L93 Difference]: Finished difference Result 4051 states and 5950 transitions. [2022-02-15 00:51:31,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:51:31,339 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 232 [2022-02-15 00:51:31,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:51:31,349 INFO L225 Difference]: With dead ends: 4051 [2022-02-15 00:51:31,349 INFO L226 Difference]: Without dead ends: 4051 [2022-02-15 00:51:31,349 INFO L932 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 [2022-02-15 00:51:31,349 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 116 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:51:31,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 390 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 473 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-02-15 00:51:31,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4051 states. [2022-02-15 00:51:31,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4051 to 3546. [2022-02-15 00:51:31,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3546 states, 3541 states have (on average 1.4860208980513978) internal successors, (5262), 3541 states have internal predecessors, (5262), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:31,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3546 states to 3546 states and 5266 transitions. [2022-02-15 00:51:31,388 INFO L78 Accepts]: Start accepts. Automaton has 3546 states and 5266 transitions. Word has length 232 [2022-02-15 00:51:31,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:51:31,388 INFO L470 AbstractCegarLoop]: Abstraction has 3546 states and 5266 transitions. [2022-02-15 00:51:31,388 INFO L471 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) [2022-02-15 00:51:31,388 INFO L276 IsEmpty]: Start isEmpty. Operand 3546 states and 5266 transitions. [2022-02-15 00:51:31,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-02-15 00:51:31,393 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:51:31,393 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:51:31,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-15 00:51:31,393 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:51:31,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:51:31,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1456164143, now seen corresponding path program 1 times [2022-02-15 00:51:31,393 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:51:31,394 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212394028] [2022-02-15 00:51:31,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:51:31,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:51:31,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:31,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:51:31,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:31,564 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 341 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-02-15 00:51:31,565 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:51:31,565 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212394028] [2022-02-15 00:51:31,565 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212394028] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:51:31,565 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:51:31,565 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:51:31,565 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141802382] [2022-02-15 00:51:31,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:51:31,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:51:31,565 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:51:31,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:51:31,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:51:31,566 INFO L87 Difference]: Start difference. First operand 3546 states and 5266 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:33,294 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:35,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:37,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:51:37,099 INFO L93 Difference]: Finished difference Result 3700 states and 5472 transitions. [2022-02-15 00:51:37,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:51:37,100 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 233 [2022-02-15 00:51:37,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:51:37,106 INFO L225 Difference]: With dead ends: 3700 [2022-02-15 00:51:37,106 INFO L226 Difference]: Without dead ends: 3700 [2022-02-15 00:51:37,106 INFO L932 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 [2022-02-15 00:51:37,107 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 41 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:51:37,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 602 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-02-15 00:51:37,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3700 states. [2022-02-15 00:51:37,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3700 to 3546. [2022-02-15 00:51:37,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3546 states, 3541 states have (on average 1.4840440553515957) internal successors, (5255), 3541 states have internal predecessors, (5255), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:37,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3546 states to 3546 states and 5259 transitions. [2022-02-15 00:51:37,144 INFO L78 Accepts]: Start accepts. Automaton has 3546 states and 5259 transitions. Word has length 233 [2022-02-15 00:51:37,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:51:37,145 INFO L470 AbstractCegarLoop]: Abstraction has 3546 states and 5259 transitions. [2022-02-15 00:51:37,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:37,145 INFO L276 IsEmpty]: Start isEmpty. Operand 3546 states and 5259 transitions. [2022-02-15 00:51:37,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-02-15 00:51:37,149 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:51:37,149 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:51:37,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-15 00:51:37,149 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:51:37,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:51:37,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1695521844, now seen corresponding path program 1 times [2022-02-15 00:51:37,150 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:51:37,150 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204756216] [2022-02-15 00:51:37,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:51:37,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:51:37,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:37,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:51:37,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:37,351 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-02-15 00:51:37,352 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:51:37,352 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204756216] [2022-02-15 00:51:37,353 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204756216] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:51:37,353 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:51:37,353 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:51:37,353 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385536024] [2022-02-15 00:51:37,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:51:37,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:51:37,354 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:51:37,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:51:37,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:51:37,354 INFO L87 Difference]: Start difference. First operand 3546 states and 5259 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) [2022-02-15 00:51:40,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:42,395 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:42,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:51:42,803 INFO L93 Difference]: Finished difference Result 4001 states and 5885 transitions. [2022-02-15 00:51:42,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:51:42,803 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 236 [2022-02-15 00:51:42,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:51:42,808 INFO L225 Difference]: With dead ends: 4001 [2022-02-15 00:51:42,808 INFO L226 Difference]: Without dead ends: 4001 [2022-02-15 00:51:42,808 INFO L932 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 [2022-02-15 00:51:42,809 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 56 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:51:42,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 617 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 523 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-02-15 00:51:42,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4001 states. [2022-02-15 00:51:42,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4001 to 3714. [2022-02-15 00:51:42,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3714 states, 3709 states have (on average 1.4828794823402534) internal successors, (5500), 3709 states have internal predecessors, (5500), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:42,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3714 states to 3714 states and 5504 transitions. [2022-02-15 00:51:42,846 INFO L78 Accepts]: Start accepts. Automaton has 3714 states and 5504 transitions. Word has length 236 [2022-02-15 00:51:42,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:51:42,846 INFO L470 AbstractCegarLoop]: Abstraction has 3714 states and 5504 transitions. [2022-02-15 00:51:42,846 INFO L471 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) [2022-02-15 00:51:42,846 INFO L276 IsEmpty]: Start isEmpty. Operand 3714 states and 5504 transitions. [2022-02-15 00:51:42,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-02-15 00:51:42,851 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:51:42,852 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:51:42,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-15 00:51:42,852 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:51:42,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:51:42,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1497180434, now seen corresponding path program 1 times [2022-02-15 00:51:42,852 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:51:42,853 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954542450] [2022-02-15 00:51:42,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:51:42,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:51:42,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:43,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:51:43,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:43,042 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2022-02-15 00:51:43,042 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:51:43,042 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954542450] [2022-02-15 00:51:43,042 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954542450] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:51:43,042 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:51:43,042 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:51:43,042 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446043099] [2022-02-15 00:51:43,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:51:43,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:51:43,043 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:51:43,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:51:43,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:51:43,043 INFO L87 Difference]: Start difference. First operand 3714 states and 5504 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 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) [2022-02-15 00:51:44,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:46,241 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:48,095 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:50,120 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 [] [2022-02-15 00:51:50,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:51:50,471 INFO L93 Difference]: Finished difference Result 3994 states and 5892 transitions. [2022-02-15 00:51:50,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:51:50,472 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 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 258 [2022-02-15 00:51:50,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:51:50,475 INFO L225 Difference]: With dead ends: 3994 [2022-02-15 00:51:50,475 INFO L226 Difference]: Without dead ends: 3994 [2022-02-15 00:51:50,475 INFO L932 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 [2022-02-15 00:51:50,475 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 30 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:51:50,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 589 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 440 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-02-15 00:51:50,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3994 states. [2022-02-15 00:51:50,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3994 to 3896. [2022-02-15 00:51:50,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3896 states, 3891 states have (on average 1.4818812644564379) internal successors, (5766), 3891 states have internal predecessors, (5766), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:50,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3896 states to 3896 states and 5770 transitions. [2022-02-15 00:51:50,508 INFO L78 Accepts]: Start accepts. Automaton has 3896 states and 5770 transitions. Word has length 258 [2022-02-15 00:51:50,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:51:50,508 INFO L470 AbstractCegarLoop]: Abstraction has 3896 states and 5770 transitions. [2022-02-15 00:51:50,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 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) [2022-02-15 00:51:50,508 INFO L276 IsEmpty]: Start isEmpty. Operand 3896 states and 5770 transitions. [2022-02-15 00:51:50,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-15 00:51:50,513 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:51:50,513 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:51:50,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-15 00:51:50,514 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:51:50,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:51:50,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1888058611, now seen corresponding path program 1 times [2022-02-15 00:51:50,514 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:51:50,514 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206567691] [2022-02-15 00:51:50,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:51:50,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:51:50,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:50,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:51:50,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:50,718 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 301 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-02-15 00:51:50,718 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:51:50,718 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206567691] [2022-02-15 00:51:50,718 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206567691] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:51:50,718 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:51:50,718 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:51:50,719 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515600017] [2022-02-15 00:51:50,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:51:50,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:51:50,719 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:51:50,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:51:50,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:51:50,720 INFO L87 Difference]: Start difference. First operand 3896 states and 5770 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:52,759 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 [] [2022-02-15 00:51:53,911 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 [] [2022-02-15 00:51:54,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:51:54,810 INFO L93 Difference]: Finished difference Result 4183 states and 6144 transitions. [2022-02-15 00:51:54,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:51:54,810 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 263 [2022-02-15 00:51:54,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:51:54,814 INFO L225 Difference]: With dead ends: 4183 [2022-02-15 00:51:54,814 INFO L226 Difference]: Without dead ends: 4183 [2022-02-15 00:51:54,814 INFO L932 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 [2022-02-15 00:51:54,815 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 58 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:51:54,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 615 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-02-15 00:51:54,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4183 states. [2022-02-15 00:51:54,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4183 to 3910. [2022-02-15 00:51:54,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3910 states, 3905 states have (on average 1.4819462227912932) internal successors, (5787), 3905 states have internal predecessors, (5787), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:54,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3910 states to 3910 states and 5791 transitions. [2022-02-15 00:51:54,851 INFO L78 Accepts]: Start accepts. Automaton has 3910 states and 5791 transitions. Word has length 263 [2022-02-15 00:51:54,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:51:54,852 INFO L470 AbstractCegarLoop]: Abstraction has 3910 states and 5791 transitions. [2022-02-15 00:51:54,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:54,852 INFO L276 IsEmpty]: Start isEmpty. Operand 3910 states and 5791 transitions. [2022-02-15 00:51:54,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-02-15 00:51:54,857 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:51:54,857 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:51:54,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-15 00:51:54,858 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:51:54,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:51:54,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1240212366, now seen corresponding path program 1 times [2022-02-15 00:51:54,858 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:51:54,858 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060235041] [2022-02-15 00:51:54,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:51:54,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:51:54,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:55,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:51:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:55,030 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 301 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-02-15 00:51:55,030 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:51:55,030 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060235041] [2022-02-15 00:51:55,030 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060235041] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:51:55,030 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:51:55,030 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:51:55,031 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653666858] [2022-02-15 00:51:55,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:51:55,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:51:55,031 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:51:55,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:51:55,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:51:55,032 INFO L87 Difference]: Start difference. First operand 3910 states and 5791 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:57,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:51:57,103 INFO L93 Difference]: Finished difference Result 4331 states and 6288 transitions. [2022-02-15 00:51:57,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:51:57,103 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 263 [2022-02-15 00:51:57,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:51:57,107 INFO L225 Difference]: With dead ends: 4331 [2022-02-15 00:51:57,107 INFO L226 Difference]: Without dead ends: 4331 [2022-02-15 00:51:57,107 INFO L932 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 [2022-02-15 00:51:57,107 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 120 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:51:57,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 394 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-02-15 00:51:57,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4331 states. [2022-02-15 00:51:57,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4331 to 3896. [2022-02-15 00:51:57,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3896 states, 3891 states have (on average 1.4662040606527884) internal successors, (5705), 3891 states have internal predecessors, (5705), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:57,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3896 states to 3896 states and 5709 transitions. [2022-02-15 00:51:57,163 INFO L78 Accepts]: Start accepts. Automaton has 3896 states and 5709 transitions. Word has length 263 [2022-02-15 00:51:57,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:51:57,164 INFO L470 AbstractCegarLoop]: Abstraction has 3896 states and 5709 transitions. [2022-02-15 00:51:57,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:57,164 INFO L276 IsEmpty]: Start isEmpty. Operand 3896 states and 5709 transitions. [2022-02-15 00:51:57,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-02-15 00:51:57,170 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:51:57,171 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:51:57,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-15 00:51:57,171 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:51:57,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:51:57,172 INFO L85 PathProgramCache]: Analyzing trace with hash -60118933, now seen corresponding path program 1 times [2022-02-15 00:51:57,172 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:51:57,172 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801722754] [2022-02-15 00:51:57,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:51:57,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:51:57,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:57,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:51:57,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:57,357 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 313 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-02-15 00:51:57,357 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:51:57,357 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801722754] [2022-02-15 00:51:57,357 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801722754] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:51:57,357 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:51:57,358 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:51:57,358 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078609073] [2022-02-15 00:51:57,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:51:57,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:51:57,358 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:51:57,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:51:57,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:51:57,359 INFO L87 Difference]: Start difference. First operand 3896 states and 5709 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:58,421 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:00,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:01,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:02,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:52:02,161 INFO L93 Difference]: Finished difference Result 4169 states and 6062 transitions. [2022-02-15 00:52:02,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:52:02,161 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 264 [2022-02-15 00:52:02,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:52:02,165 INFO L225 Difference]: With dead ends: 4169 [2022-02-15 00:52:02,165 INFO L226 Difference]: Without dead ends: 4169 [2022-02-15 00:52:02,165 INFO L932 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 [2022-02-15 00:52:02,165 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 51 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:52:02,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 611 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-02-15 00:52:02,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4169 states. [2022-02-15 00:52:02,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4169 to 3945. [2022-02-15 00:52:02,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3945 states, 3940 states have (on average 1.4639593908629442) internal successors, (5768), 3940 states have internal predecessors, (5768), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:02,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3945 states to 3945 states and 5772 transitions. [2022-02-15 00:52:02,212 INFO L78 Accepts]: Start accepts. Automaton has 3945 states and 5772 transitions. Word has length 264 [2022-02-15 00:52:02,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:52:02,212 INFO L470 AbstractCegarLoop]: Abstraction has 3945 states and 5772 transitions. [2022-02-15 00:52:02,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:02,213 INFO L276 IsEmpty]: Start isEmpty. Operand 3945 states and 5772 transitions. [2022-02-15 00:52:02,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-02-15 00:52:02,217 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:52:02,217 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:52:02,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-15 00:52:02,217 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:52:02,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:52:02,218 INFO L85 PathProgramCache]: Analyzing trace with hash 2107997919, now seen corresponding path program 1 times [2022-02-15 00:52:02,218 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:52:02,218 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341367209] [2022-02-15 00:52:02,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:52:02,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:52:02,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:02,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:52:02,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:02,391 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-02-15 00:52:02,391 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:52:02,391 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341367209] [2022-02-15 00:52:02,391 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341367209] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:52:02,391 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:52:02,391 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:52:02,391 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309406485] [2022-02-15 00:52:02,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:52:02,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:52:02,392 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:52:02,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:52:02,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:52:02,393 INFO L87 Difference]: Start difference. First operand 3945 states and 5772 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:03,428 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:05,444 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:07,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:08,655 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:09,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:52:09,053 INFO L93 Difference]: Finished difference Result 4155 states and 6034 transitions. [2022-02-15 00:52:09,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:52:09,053 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 264 [2022-02-15 00:52:09,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:52:09,057 INFO L225 Difference]: With dead ends: 4155 [2022-02-15 00:52:09,057 INFO L226 Difference]: Without dead ends: 4155 [2022-02-15 00:52:09,057 INFO L932 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 [2022-02-15 00:52:09,058 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 53 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:52:09,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 609 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 504 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-02-15 00:52:09,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4155 states. [2022-02-15 00:52:09,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4155 to 3945. [2022-02-15 00:52:09,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3945 states, 3940 states have (on average 1.4621827411167512) internal successors, (5761), 3940 states have internal predecessors, (5761), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:09,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3945 states to 3945 states and 5765 transitions. [2022-02-15 00:52:09,082 INFO L78 Accepts]: Start accepts. Automaton has 3945 states and 5765 transitions. Word has length 264 [2022-02-15 00:52:09,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:52:09,082 INFO L470 AbstractCegarLoop]: Abstraction has 3945 states and 5765 transitions. [2022-02-15 00:52:09,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:09,082 INFO L276 IsEmpty]: Start isEmpty. Operand 3945 states and 5765 transitions. [2022-02-15 00:52:09,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-02-15 00:52:09,087 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:52:09,087 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:52:09,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-15 00:52:09,087 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:52:09,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:52:09,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1867966454, now seen corresponding path program 1 times [2022-02-15 00:52:09,088 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:52:09,088 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627005834] [2022-02-15 00:52:09,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:52:09,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:52:09,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:09,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:52:09,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:09,285 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 313 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-02-15 00:52:09,285 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:52:09,286 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627005834] [2022-02-15 00:52:09,286 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627005834] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:52:09,286 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:52:09,286 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:52:09,286 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305974550] [2022-02-15 00:52:09,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:52:09,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:52:09,287 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:52:09,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:52:09,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:52:09,287 INFO L87 Difference]: Start difference. First operand 3945 states and 5765 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:11,219 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:12,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:52:12,498 INFO L93 Difference]: Finished difference Result 4366 states and 6283 transitions. [2022-02-15 00:52:12,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:52:12,498 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 264 [2022-02-15 00:52:12,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:52:12,502 INFO L225 Difference]: With dead ends: 4366 [2022-02-15 00:52:12,502 INFO L226 Difference]: Without dead ends: 4366 [2022-02-15 00:52:12,503 INFO L932 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 [2022-02-15 00:52:12,503 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 115 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:52:12,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 370 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-02-15 00:52:12,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4366 states. [2022-02-15 00:52:12,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4366 to 3917. [2022-02-15 00:52:12,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3917 states, 3912 states have (on average 1.4552658486707566) internal successors, (5693), 3912 states have internal predecessors, (5693), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:12,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3917 states to 3917 states and 5697 transitions. [2022-02-15 00:52:12,533 INFO L78 Accepts]: Start accepts. Automaton has 3917 states and 5697 transitions. Word has length 264 [2022-02-15 00:52:12,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:52:12,533 INFO L470 AbstractCegarLoop]: Abstraction has 3917 states and 5697 transitions. [2022-02-15 00:52:12,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:12,533 INFO L276 IsEmpty]: Start isEmpty. Operand 3917 states and 5697 transitions. [2022-02-15 00:52:12,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-02-15 00:52:12,537 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:52:12,537 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:52:12,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-15 00:52:12,538 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:52:12,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:52:12,538 INFO L85 PathProgramCache]: Analyzing trace with hash 300150398, now seen corresponding path program 1 times [2022-02-15 00:52:12,538 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:52:12,538 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143825125] [2022-02-15 00:52:12,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:52:12,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:52:12,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:12,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:52:12,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:12,732 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-02-15 00:52:12,732 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:52:12,732 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143825125] [2022-02-15 00:52:12,732 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143825125] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:52:12,732 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:52:12,732 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:52:12,732 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767879817] [2022-02-15 00:52:12,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:52:12,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:52:12,733 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:52:12,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:52:12,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:52:12,733 INFO L87 Difference]: Start difference. First operand 3917 states and 5697 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:16,018 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 [] [2022-02-15 00:52:16,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:52:16,429 INFO L93 Difference]: Finished difference Result 4338 states and 6194 transitions. [2022-02-15 00:52:16,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:52:16,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 264 [2022-02-15 00:52:16,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:52:16,433 INFO L225 Difference]: With dead ends: 4338 [2022-02-15 00:52:16,433 INFO L226 Difference]: Without dead ends: 4338 [2022-02-15 00:52:16,433 INFO L932 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 [2022-02-15 00:52:16,433 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 118 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-02-15 00:52:16,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 370 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-02-15 00:52:16,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4338 states. [2022-02-15 00:52:16,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4338 to 3896. [2022-02-15 00:52:16,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3896 states, 3891 states have (on average 1.4402467232074017) internal successors, (5604), 3891 states have internal predecessors, (5604), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:16,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3896 states to 3896 states and 5608 transitions. [2022-02-15 00:52:16,462 INFO L78 Accepts]: Start accepts. Automaton has 3896 states and 5608 transitions. Word has length 264 [2022-02-15 00:52:16,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:52:16,462 INFO L470 AbstractCegarLoop]: Abstraction has 3896 states and 5608 transitions. [2022-02-15 00:52:16,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:16,462 INFO L276 IsEmpty]: Start isEmpty. Operand 3896 states and 5608 transitions. [2022-02-15 00:52:16,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-02-15 00:52:16,467 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:52:16,467 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:52:16,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-15 00:52:16,467 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:52:16,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:52:16,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1570176339, now seen corresponding path program 1 times [2022-02-15 00:52:16,468 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:52:16,468 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71565026] [2022-02-15 00:52:16,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:52:16,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:52:16,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:16,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:52:16,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:16,664 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 316 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-02-15 00:52:16,664 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:52:16,665 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71565026] [2022-02-15 00:52:16,665 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71565026] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:52:16,665 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:52:16,665 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:52:16,665 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853559665] [2022-02-15 00:52:16,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:52:16,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:52:16,665 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:52:16,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:52:16,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:52:16,666 INFO L87 Difference]: Start difference. First operand 3896 states and 5608 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:17,750 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:19,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:21,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:21,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:52:21,918 INFO L93 Difference]: Finished difference Result 4155 states and 5926 transitions. [2022-02-15 00:52:21,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:52:21,919 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 267 [2022-02-15 00:52:21,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:52:21,922 INFO L225 Difference]: With dead ends: 4155 [2022-02-15 00:52:21,922 INFO L226 Difference]: Without dead ends: 4155 [2022-02-15 00:52:21,923 INFO L932 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 [2022-02-15 00:52:21,923 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 46 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:52:21,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 607 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 503 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-02-15 00:52:21,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4155 states. [2022-02-15 00:52:21,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4155 to 3959. [2022-02-15 00:52:21,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3959 states, 3954 states have (on average 1.4350025290844715) internal successors, (5674), 3954 states have internal predecessors, (5674), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:21,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3959 states to 3959 states and 5678 transitions. [2022-02-15 00:52:21,966 INFO L78 Accepts]: Start accepts. Automaton has 3959 states and 5678 transitions. Word has length 267 [2022-02-15 00:52:21,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:52:21,966 INFO L470 AbstractCegarLoop]: Abstraction has 3959 states and 5678 transitions. [2022-02-15 00:52:21,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:21,966 INFO L276 IsEmpty]: Start isEmpty. Operand 3959 states and 5678 transitions. [2022-02-15 00:52:21,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-02-15 00:52:21,970 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:52:21,970 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:52:21,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-15 00:52:21,970 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:52:21,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:52:21,971 INFO L85 PathProgramCache]: Analyzing trace with hash -265782610, now seen corresponding path program 1 times [2022-02-15 00:52:21,971 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:52:21,971 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570175097] [2022-02-15 00:52:21,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:52:21,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:52:22,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:22,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:52:22,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:22,161 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 316 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-02-15 00:52:22,161 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:52:22,161 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570175097] [2022-02-15 00:52:22,162 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570175097] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:52:22,162 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:52:22,162 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:52:22,162 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502036685] [2022-02-15 00:52:22,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:52:22,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:52:22,162 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:52:22,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:52:22,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:52:22,163 INFO L87 Difference]: Start difference. First operand 3959 states and 5678 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:23,475 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 [] [2022-02-15 00:52:24,919 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:26,940 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:28,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:52:28,187 INFO L93 Difference]: Finished difference Result 4183 states and 5954 transitions. [2022-02-15 00:52:28,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:52:28,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 267 [2022-02-15 00:52:28,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:52:28,190 INFO L225 Difference]: With dead ends: 4183 [2022-02-15 00:52:28,190 INFO L226 Difference]: Without dead ends: 4183 [2022-02-15 00:52:28,190 INFO L932 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 [2022-02-15 00:52:28,191 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 45 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:52:28,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 535 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-02-15 00:52:28,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4183 states. [2022-02-15 00:52:28,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4183 to 3924. [2022-02-15 00:52:28,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3924 states, 3919 states have (on average 1.437101301352386) internal successors, (5632), 3919 states have internal predecessors, (5632), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:28,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3924 states to 3924 states and 5636 transitions. [2022-02-15 00:52:28,220 INFO L78 Accepts]: Start accepts. Automaton has 3924 states and 5636 transitions. Word has length 267 [2022-02-15 00:52:28,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:52:28,220 INFO L470 AbstractCegarLoop]: Abstraction has 3924 states and 5636 transitions. [2022-02-15 00:52:28,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:28,220 INFO L276 IsEmpty]: Start isEmpty. Operand 3924 states and 5636 transitions. [2022-02-15 00:52:28,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-02-15 00:52:28,224 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:52:28,224 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:52:28,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-15 00:52:28,225 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:52:28,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:52:28,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1564953844, now seen corresponding path program 1 times [2022-02-15 00:52:28,225 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:52:28,225 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910014943] [2022-02-15 00:52:28,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:52:28,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:52:28,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:28,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:52:28,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:28,401 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 317 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-02-15 00:52:28,401 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:52:28,401 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910014943] [2022-02-15 00:52:28,401 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910014943] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:52:28,401 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:52:28,401 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:52:28,402 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442855673] [2022-02-15 00:52:28,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:52:28,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:52:28,403 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:52:28,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:52:28,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:52:28,403 INFO L87 Difference]: Start difference. First operand 3924 states and 5636 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:29,680 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:31,702 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:33,280 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:34,948 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:35,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:52:35,336 INFO L93 Difference]: Finished difference Result 4155 states and 5912 transitions. [2022-02-15 00:52:35,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:52:35,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 268 [2022-02-15 00:52:35,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:52:35,341 INFO L225 Difference]: With dead ends: 4155 [2022-02-15 00:52:35,341 INFO L226 Difference]: Without dead ends: 4155 [2022-02-15 00:52:35,341 INFO L932 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 [2022-02-15 00:52:35,342 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 41 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:52:35,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 599 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-02-15 00:52:35,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4155 states. [2022-02-15 00:52:35,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4155 to 3994. [2022-02-15 00:52:35,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3994 states, 3989 states have (on average 1.4311857608423164) internal successors, (5709), 3989 states have internal predecessors, (5709), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:35,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3994 states to 3994 states and 5713 transitions. [2022-02-15 00:52:35,375 INFO L78 Accepts]: Start accepts. Automaton has 3994 states and 5713 transitions. Word has length 268 [2022-02-15 00:52:35,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:52:35,375 INFO L470 AbstractCegarLoop]: Abstraction has 3994 states and 5713 transitions. [2022-02-15 00:52:35,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:35,375 INFO L276 IsEmpty]: Start isEmpty. Operand 3994 states and 5713 transitions. [2022-02-15 00:52:35,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-02-15 00:52:35,394 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:52:35,394 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:52:35,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-15 00:52:35,394 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:52:35,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:52:35,394 INFO L85 PathProgramCache]: Analyzing trace with hash -29323143, now seen corresponding path program 1 times [2022-02-15 00:52:35,395 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:52:35,395 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581348351] [2022-02-15 00:52:35,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:52:35,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:52:35,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:35,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:52:35,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:35,546 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-02-15 00:52:35,546 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:52:35,546 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581348351] [2022-02-15 00:52:35,546 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581348351] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:52:35,546 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:52:35,546 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:52:35,546 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992299610] [2022-02-15 00:52:35,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:52:35,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:52:35,547 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:52:35,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:52:35,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:52:35,547 INFO L87 Difference]: Start difference. First operand 3994 states and 5713 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:37,265 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:39,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:41,308 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 [] [2022-02-15 00:52:41,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:52:41,693 INFO L93 Difference]: Finished difference Result 4155 states and 5905 transitions. [2022-02-15 00:52:41,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:52:41,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 268 [2022-02-15 00:52:41,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:52:41,696 INFO L225 Difference]: With dead ends: 4155 [2022-02-15 00:52:41,696 INFO L226 Difference]: Without dead ends: 4155 [2022-02-15 00:52:41,696 INFO L932 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 [2022-02-15 00:52:41,697 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 39 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:52:41,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 597 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 489 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-02-15 00:52:41,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4155 states. [2022-02-15 00:52:41,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4155 to 4001. [2022-02-15 00:52:41,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4001 states, 3996 states have (on average 1.4304304304304305) internal successors, (5716), 3996 states have internal predecessors, (5716), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:41,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4001 states to 4001 states and 5720 transitions. [2022-02-15 00:52:41,728 INFO L78 Accepts]: Start accepts. Automaton has 4001 states and 5720 transitions. Word has length 268 [2022-02-15 00:52:41,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:52:41,729 INFO L470 AbstractCegarLoop]: Abstraction has 4001 states and 5720 transitions. [2022-02-15 00:52:41,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:41,729 INFO L276 IsEmpty]: Start isEmpty. Operand 4001 states and 5720 transitions. [2022-02-15 00:52:41,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-02-15 00:52:41,733 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:52:41,733 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:52:41,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-15 00:52:41,733 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:52:41,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:52:41,734 INFO L85 PathProgramCache]: Analyzing trace with hash -948513517, now seen corresponding path program 1 times [2022-02-15 00:52:41,734 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:52:41,734 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697195070] [2022-02-15 00:52:41,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:52:41,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:52:41,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:41,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:52:41,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:41,916 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 317 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-02-15 00:52:41,916 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:52:41,917 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697195070] [2022-02-15 00:52:41,917 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697195070] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:52:41,917 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:52:41,917 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:52:41,917 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568133504] [2022-02-15 00:52:41,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:52:41,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:52:41,917 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:52:41,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:52:41,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:52:41,918 INFO L87 Difference]: Start difference. First operand 4001 states and 5720 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:43,271 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 [] [2022-02-15 00:52:44,422 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:46,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:47,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:52:47,320 INFO L93 Difference]: Finished difference Result 4422 states and 6251 transitions. [2022-02-15 00:52:47,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:52:47,321 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 268 [2022-02-15 00:52:47,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:52:47,324 INFO L225 Difference]: With dead ends: 4422 [2022-02-15 00:52:47,324 INFO L226 Difference]: Without dead ends: 4422 [2022-02-15 00:52:47,324 INFO L932 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 [2022-02-15 00:52:47,325 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 110 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:52:47,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 370 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 460 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-02-15 00:52:47,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4422 states. [2022-02-15 00:52:47,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4422 to 4001. [2022-02-15 00:52:47,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4001 states, 3996 states have (on average 1.4236736736736737) internal successors, (5689), 3996 states have internal predecessors, (5689), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:47,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4001 states to 4001 states and 5693 transitions. [2022-02-15 00:52:47,389 INFO L78 Accepts]: Start accepts. Automaton has 4001 states and 5693 transitions. Word has length 268 [2022-02-15 00:52:47,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:52:47,389 INFO L470 AbstractCegarLoop]: Abstraction has 4001 states and 5693 transitions. [2022-02-15 00:52:47,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:47,390 INFO L276 IsEmpty]: Start isEmpty. Operand 4001 states and 5693 transitions. [2022-02-15 00:52:47,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-02-15 00:52:47,393 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:52:47,393 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:52:47,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-15 00:52:47,393 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:52:47,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:52:47,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1752176792, now seen corresponding path program 1 times [2022-02-15 00:52:47,394 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:52:47,394 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907560077] [2022-02-15 00:52:47,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:52:47,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:52:47,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:47,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:52:47,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:47,589 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-02-15 00:52:47,589 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:52:47,589 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907560077] [2022-02-15 00:52:47,589 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907560077] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:52:47,589 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:52:47,589 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:52:47,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376509495] [2022-02-15 00:52:47,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:52:47,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:52:47,591 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:52:47,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:52:47,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:52:47,591 INFO L87 Difference]: Start difference. First operand 4001 states and 5693 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:50,006 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 [] [2022-02-15 00:52:50,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:52:50,405 INFO L93 Difference]: Finished difference Result 4716 states and 6637 transitions. [2022-02-15 00:52:50,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:52:50,405 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 268 [2022-02-15 00:52:50,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:52:50,408 INFO L225 Difference]: With dead ends: 4716 [2022-02-15 00:52:50,409 INFO L226 Difference]: Without dead ends: 4716 [2022-02-15 00:52:50,409 INFO L932 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 [2022-02-15 00:52:50,409 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 108 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:52:50,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 370 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-02-15 00:52:50,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4716 states. [2022-02-15 00:52:50,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4716 to 4169. [2022-02-15 00:52:50,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4169 states, 4164 states have (on average 1.4236311239193085) internal successors, (5928), 4164 states have internal predecessors, (5928), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:50,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4169 states to 4169 states and 5932 transitions. [2022-02-15 00:52:50,455 INFO L78 Accepts]: Start accepts. Automaton has 4169 states and 5932 transitions. Word has length 268 [2022-02-15 00:52:50,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:52:50,456 INFO L470 AbstractCegarLoop]: Abstraction has 4169 states and 5932 transitions. [2022-02-15 00:52:50,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:50,456 INFO L276 IsEmpty]: Start isEmpty. Operand 4169 states and 5932 transitions. [2022-02-15 00:52:50,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-02-15 00:52:50,460 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:52:50,460 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:52:50,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-15 00:52:50,460 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:52:50,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:52:50,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1401581739, now seen corresponding path program 1 times [2022-02-15 00:52:50,461 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:52:50,461 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439298439] [2022-02-15 00:52:50,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:52:50,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:52:50,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:50,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:52:50,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:50,714 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 319 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-02-15 00:52:50,714 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:52:50,714 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439298439] [2022-02-15 00:52:50,714 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439298439] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:52:50,714 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:52:50,714 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:52:50,714 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799301206] [2022-02-15 00:52:50,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:52:50,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:52:50,714 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:52:50,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:52:50,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:52:50,715 INFO L87 Difference]: Start difference. First operand 4169 states and 5932 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:52,182 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:53,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:55,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:55,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:52:55,498 INFO L93 Difference]: Finished difference Result 4386 states and 6180 transitions. [2022-02-15 00:52:55,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:52:55,498 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 269 [2022-02-15 00:52:55,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:52:55,502 INFO L225 Difference]: With dead ends: 4386 [2022-02-15 00:52:55,502 INFO L226 Difference]: Without dead ends: 4386 [2022-02-15 00:52:55,503 INFO L932 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 [2022-02-15 00:52:55,503 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 36 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:52:55,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 593 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-02-15 00:52:55,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4386 states. [2022-02-15 00:52:55,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4386 to 4253. [2022-02-15 00:52:55,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4253 states, 4248 states have (on average 1.4169020715630884) internal successors, (6019), 4248 states have internal predecessors, (6019), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:55,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4253 states to 4253 states and 6023 transitions. [2022-02-15 00:52:55,589 INFO L78 Accepts]: Start accepts. Automaton has 4253 states and 6023 transitions. Word has length 269 [2022-02-15 00:52:55,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:52:55,590 INFO L470 AbstractCegarLoop]: Abstraction has 4253 states and 6023 transitions. [2022-02-15 00:52:55,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:55,590 INFO L276 IsEmpty]: Start isEmpty. Operand 4253 states and 6023 transitions. [2022-02-15 00:52:55,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-02-15 00:52:55,594 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:52:55,594 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:52:55,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-02-15 00:52:55,594 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:52:55,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:52:55,595 INFO L85 PathProgramCache]: Analyzing trace with hash -2009658602, now seen corresponding path program 1 times [2022-02-15 00:52:55,595 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:52:55,595 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732332673] [2022-02-15 00:52:55,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:52:55,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:52:55,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:55,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:52:55,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:52:55,770 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 319 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-02-15 00:52:55,770 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:52:55,770 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732332673] [2022-02-15 00:52:55,770 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732332673] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:52:55,770 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:52:55,771 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:52:55,771 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927647491] [2022-02-15 00:52:55,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:52:55,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:52:55,771 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:52:55,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:52:55,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:52:55,772 INFO L87 Difference]: Start difference. First operand 4253 states and 6023 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:52:57,100 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:52:59,119 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:01,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:02,809 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:03,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:53:03,172 INFO L93 Difference]: Finished difference Result 4407 states and 6201 transitions. [2022-02-15 00:53:03,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:53:03,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 269 [2022-02-15 00:53:03,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:53:03,175 INFO L225 Difference]: With dead ends: 4407 [2022-02-15 00:53:03,175 INFO L226 Difference]: Without dead ends: 4407 [2022-02-15 00:53:03,175 INFO L932 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 [2022-02-15 00:53:03,176 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 35 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:53:03,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 541 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 456 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-02-15 00:53:03,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4407 states. [2022-02-15 00:53:03,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4407 to 4190. [2022-02-15 00:53:03,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4190 states, 4185 states have (on average 1.421505376344086) internal successors, (5949), 4185 states have internal predecessors, (5949), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:03,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4190 states to 4190 states and 5953 transitions. [2022-02-15 00:53:03,202 INFO L78 Accepts]: Start accepts. Automaton has 4190 states and 5953 transitions. Word has length 269 [2022-02-15 00:53:03,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:53:03,202 INFO L470 AbstractCegarLoop]: Abstraction has 4190 states and 5953 transitions. [2022-02-15 00:53:03,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:03,203 INFO L276 IsEmpty]: Start isEmpty. Operand 4190 states and 5953 transitions. [2022-02-15 00:53:03,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-02-15 00:53:03,206 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:53:03,206 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:53:03,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-15 00:53:03,206 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:53:03,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:53:03,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1588012505, now seen corresponding path program 1 times [2022-02-15 00:53:03,207 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:53:03,207 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082705851] [2022-02-15 00:53:03,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:53:03,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:53:03,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:03,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:53:03,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:03,378 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-02-15 00:53:03,378 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:53:03,378 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082705851] [2022-02-15 00:53:03,378 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082705851] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:53:03,378 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:53:03,378 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:53:03,378 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754048700] [2022-02-15 00:53:03,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:53:03,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:53:03,379 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:53:03,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:53:03,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:53:03,379 INFO L87 Difference]: Start difference. First operand 4190 states and 5953 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:05,000 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:06,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:08,058 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 [] [2022-02-15 00:53:08,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:53:08,442 INFO L93 Difference]: Finished difference Result 4407 states and 6194 transitions. [2022-02-15 00:53:08,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:53:08,442 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 277 [2022-02-15 00:53:08,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:53:08,446 INFO L225 Difference]: With dead ends: 4407 [2022-02-15 00:53:08,446 INFO L226 Difference]: Without dead ends: 4407 [2022-02-15 00:53:08,446 INFO L932 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 [2022-02-15 00:53:08,446 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 30 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:53:08,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 591 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-02-15 00:53:08,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4407 states. [2022-02-15 00:53:08,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4407 to 4309. [2022-02-15 00:53:08,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4309 states, 4304 states have (on average 1.4114776951672863) internal successors, (6075), 4304 states have internal predecessors, (6075), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:08,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4309 states to 4309 states and 6079 transitions. [2022-02-15 00:53:08,472 INFO L78 Accepts]: Start accepts. Automaton has 4309 states and 6079 transitions. Word has length 277 [2022-02-15 00:53:08,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:53:08,472 INFO L470 AbstractCegarLoop]: Abstraction has 4309 states and 6079 transitions. [2022-02-15 00:53:08,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:08,472 INFO L276 IsEmpty]: Start isEmpty. Operand 4309 states and 6079 transitions. [2022-02-15 00:53:08,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-02-15 00:53:08,476 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:53:08,477 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:53:08,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-02-15 00:53:08,477 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:53:08,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:53:08,477 INFO L85 PathProgramCache]: Analyzing trace with hash -720960280, now seen corresponding path program 1 times [2022-02-15 00:53:08,477 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:53:08,477 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358220335] [2022-02-15 00:53:08,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:53:08,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:53:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:08,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:53:08,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:08,656 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2022-02-15 00:53:08,656 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:53:08,656 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358220335] [2022-02-15 00:53:08,657 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358220335] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:53:08,657 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:53:08,657 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:53:08,657 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157286011] [2022-02-15 00:53:08,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:53:08,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:53:08,657 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:53:08,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:53:08,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:53:08,658 INFO L87 Difference]: Start difference. First operand 4309 states and 6079 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:09,966 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 [] [2022-02-15 00:53:11,983 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:13,851 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:14,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:53:14,248 INFO L93 Difference]: Finished difference Result 4443 states and 6230 transitions. [2022-02-15 00:53:14,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:53:14,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 277 [2022-02-15 00:53:14,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:53:14,251 INFO L225 Difference]: With dead ends: 4443 [2022-02-15 00:53:14,251 INFO L226 Difference]: Without dead ends: 4443 [2022-02-15 00:53:14,251 INFO L932 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 [2022-02-15 00:53:14,252 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 54 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:53:14,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 584 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 493 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-02-15 00:53:14,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4443 states. [2022-02-15 00:53:14,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4443 to 4309. [2022-02-15 00:53:14,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4309 states, 4304 states have (on average 1.4100836431226766) internal successors, (6069), 4304 states have internal predecessors, (6069), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:14,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4309 states to 4309 states and 6073 transitions. [2022-02-15 00:53:14,277 INFO L78 Accepts]: Start accepts. Automaton has 4309 states and 6073 transitions. Word has length 277 [2022-02-15 00:53:14,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:53:14,277 INFO L470 AbstractCegarLoop]: Abstraction has 4309 states and 6073 transitions. [2022-02-15 00:53:14,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:14,278 INFO L276 IsEmpty]: Start isEmpty. Operand 4309 states and 6073 transitions. [2022-02-15 00:53:14,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-02-15 00:53:14,281 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:53:14,281 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:53:14,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-02-15 00:53:14,281 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:53:14,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:53:14,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1938433169, now seen corresponding path program 1 times [2022-02-15 00:53:14,282 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:53:14,282 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163267243] [2022-02-15 00:53:14,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:53:14,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:53:14,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:14,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:53:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:14,542 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 444 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2022-02-15 00:53:14,542 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:53:14,542 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163267243] [2022-02-15 00:53:14,542 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163267243] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:53:14,542 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:53:14,542 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:53:14,542 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591591356] [2022-02-15 00:53:14,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:53:14,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:53:14,543 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:53:14,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:53:14,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:53:14,543 INFO L87 Difference]: Start difference. First operand 4309 states and 6073 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:15,831 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:17,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:19,765 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:20,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:53:20,173 INFO L93 Difference]: Finished difference Result 4407 states and 6181 transitions. [2022-02-15 00:53:20,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:53:20,174 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 285 [2022-02-15 00:53:20,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:53:20,177 INFO L225 Difference]: With dead ends: 4407 [2022-02-15 00:53:20,177 INFO L226 Difference]: Without dead ends: 4407 [2022-02-15 00:53:20,177 INFO L932 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 [2022-02-15 00:53:20,177 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 46 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:53:20,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 589 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-02-15 00:53:20,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4407 states. [2022-02-15 00:53:20,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4407 to 4309. [2022-02-15 00:53:20,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4309 states, 4304 states have (on average 1.408457249070632) internal successors, (6062), 4304 states have internal predecessors, (6062), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:20,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4309 states to 4309 states and 6066 transitions. [2022-02-15 00:53:20,200 INFO L78 Accepts]: Start accepts. Automaton has 4309 states and 6066 transitions. Word has length 285 [2022-02-15 00:53:20,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:53:20,200 INFO L470 AbstractCegarLoop]: Abstraction has 4309 states and 6066 transitions. [2022-02-15 00:53:20,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:20,200 INFO L276 IsEmpty]: Start isEmpty. Operand 4309 states and 6066 transitions. [2022-02-15 00:53:20,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-02-15 00:53:20,204 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:53:20,204 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:53:20,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-02-15 00:53:20,205 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:53:20,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:53:20,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1869106304, now seen corresponding path program 1 times [2022-02-15 00:53:20,205 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:53:20,205 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133298296] [2022-02-15 00:53:20,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:53:20,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:53:20,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:20,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:53:20,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:20,392 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 450 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2022-02-15 00:53:20,392 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:53:20,392 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133298296] [2022-02-15 00:53:20,392 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133298296] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:53:20,392 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:53:20,392 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:53:20,392 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834717455] [2022-02-15 00:53:20,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:53:20,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:53:20,393 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:53:20,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:53:20,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:53:20,393 INFO L87 Difference]: Start difference. First operand 4309 states and 6066 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:21,696 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 [] [2022-02-15 00:53:23,718 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:25,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:27,767 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 [] [2022-02-15 00:53:28,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:53:28,136 INFO L93 Difference]: Finished difference Result 4373 states and 6132 transitions. [2022-02-15 00:53:28,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:53:28,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 286 [2022-02-15 00:53:28,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:53:28,140 INFO L225 Difference]: With dead ends: 4373 [2022-02-15 00:53:28,141 INFO L226 Difference]: Without dead ends: 4373 [2022-02-15 00:53:28,141 INFO L932 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 [2022-02-15 00:53:28,141 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 38 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-02-15 00:53:28,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 577 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 467 Invalid, 3 Unknown, 0 Unchecked, 7.7s Time] [2022-02-15 00:53:28,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4373 states. [2022-02-15 00:53:28,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4373 to 4309. [2022-02-15 00:53:28,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4309 states, 4304 states have (on average 1.4068308550185873) internal successors, (6055), 4304 states have internal predecessors, (6055), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:28,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4309 states to 4309 states and 6059 transitions. [2022-02-15 00:53:28,196 INFO L78 Accepts]: Start accepts. Automaton has 4309 states and 6059 transitions. Word has length 286 [2022-02-15 00:53:28,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:53:28,196 INFO L470 AbstractCegarLoop]: Abstraction has 4309 states and 6059 transitions. [2022-02-15 00:53:28,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:28,196 INFO L276 IsEmpty]: Start isEmpty. Operand 4309 states and 6059 transitions. [2022-02-15 00:53:28,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-02-15 00:53:28,199 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:53:28,200 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:53:28,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-02-15 00:53:28,200 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:53:28,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:53:28,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1217942817, now seen corresponding path program 1 times [2022-02-15 00:53:28,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:53:28,200 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548857358] [2022-02-15 00:53:28,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:53:28,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:53:28,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:28,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:53:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:28,439 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 450 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2022-02-15 00:53:28,439 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:53:28,439 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548857358] [2022-02-15 00:53:28,439 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548857358] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:53:28,439 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:53:28,439 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:53:28,439 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114450588] [2022-02-15 00:53:28,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:53:28,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:53:28,440 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:53:28,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:53:28,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:53:28,440 INFO L87 Difference]: Start difference. First operand 4309 states and 6059 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:31,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:32,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:53:32,127 INFO L93 Difference]: Finished difference Result 4730 states and 6542 transitions. [2022-02-15 00:53:32,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:53:32,127 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 286 [2022-02-15 00:53:32,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:53:32,130 INFO L225 Difference]: With dead ends: 4730 [2022-02-15 00:53:32,130 INFO L226 Difference]: Without dead ends: 4730 [2022-02-15 00:53:32,131 INFO L932 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 [2022-02-15 00:53:32,131 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 118 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-02-15 00:53:32,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 370 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-02-15 00:53:32,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4730 states. [2022-02-15 00:53:32,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4730 to 4309. [2022-02-15 00:53:32,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4309 states, 4304 states have (on average 1.3894052044609666) internal successors, (5980), 4304 states have internal predecessors, (5980), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:32,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4309 states to 4309 states and 5984 transitions. [2022-02-15 00:53:32,187 INFO L78 Accepts]: Start accepts. Automaton has 4309 states and 5984 transitions. Word has length 286 [2022-02-15 00:53:32,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:53:32,187 INFO L470 AbstractCegarLoop]: Abstraction has 4309 states and 5984 transitions. [2022-02-15 00:53:32,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:32,187 INFO L276 IsEmpty]: Start isEmpty. Operand 4309 states and 5984 transitions. [2022-02-15 00:53:32,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-02-15 00:53:32,193 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:53:32,193 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:53:32,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-02-15 00:53:32,194 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:53:32,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:53:32,194 INFO L85 PathProgramCache]: Analyzing trace with hash -746756437, now seen corresponding path program 1 times [2022-02-15 00:53:32,194 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:53:32,194 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776262707] [2022-02-15 00:53:32,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:53:32,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:53:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:32,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:53:32,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:32,566 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 508 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-02-15 00:53:32,567 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:53:32,567 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776262707] [2022-02-15 00:53:32,567 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776262707] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:53:32,567 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:53:32,567 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-15 00:53:32,567 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116528885] [2022-02-15 00:53:32,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:53:32,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-15 00:53:32,568 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:53:32,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-15 00:53:32,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-15 00:53:32,568 INFO L87 Difference]: Start difference. First operand 4309 states and 5984 transitions. Second operand has 8 states, 8 states have (on average 20.25) internal successors, (162), 7 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:34,966 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:36,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:39,921 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 [] [2022-02-15 00:53:40,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:53:40,967 INFO L93 Difference]: Finished difference Result 8159 states and 11348 transitions. [2022-02-15 00:53:40,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-15 00:53:40,967 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 7 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 295 [2022-02-15 00:53:40,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:53:40,974 INFO L225 Difference]: With dead ends: 8159 [2022-02-15 00:53:40,974 INFO L226 Difference]: Without dead ends: 8159 [2022-02-15 00:53:40,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-02-15 00:53:40,975 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 199 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 1176 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 1222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1176 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:53:40,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 1217 Invalid, 1222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1176 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2022-02-15 00:53:40,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8159 states. [2022-02-15 00:53:41,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8159 to 7590. [2022-02-15 00:53:41,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7590 states, 7585 states have (on average 1.4073829927488464) internal successors, (10675), 7585 states have internal predecessors, (10675), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:41,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7590 states to 7590 states and 10679 transitions. [2022-02-15 00:53:41,050 INFO L78 Accepts]: Start accepts. Automaton has 7590 states and 10679 transitions. Word has length 295 [2022-02-15 00:53:41,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:53:41,050 INFO L470 AbstractCegarLoop]: Abstraction has 7590 states and 10679 transitions. [2022-02-15 00:53:41,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 7 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:41,051 INFO L276 IsEmpty]: Start isEmpty. Operand 7590 states and 10679 transitions. [2022-02-15 00:53:41,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-02-15 00:53:41,057 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:53:41,057 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-02-15 00:53:41,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-02-15 00:53:41,058 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:53:41,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:53:41,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1814109237, now seen corresponding path program 1 times [2022-02-15 00:53:41,058 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:53:41,058 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554387422] [2022-02-15 00:53:41,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:53:41,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:53:41,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:41,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:53:41,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:41,386 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 484 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-02-15 00:53:41,386 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:53:41,386 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554387422] [2022-02-15 00:53:41,387 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554387422] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:53:41,387 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:53:41,387 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:53:41,387 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897410295] [2022-02-15 00:53:41,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:53:41,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:53:41,388 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:53:41,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:53:41,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:53:41,389 INFO L87 Difference]: Start difference. First operand 7590 states and 10679 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:43,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:45,622 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 [] [2022-02-15 00:53:46,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:53:46,018 INFO L93 Difference]: Finished difference Result 7697 states and 10797 transitions. [2022-02-15 00:53:46,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:53:46,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 296 [2022-02-15 00:53:46,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:53:46,025 INFO L225 Difference]: With dead ends: 7697 [2022-02-15 00:53:46,025 INFO L226 Difference]: Without dead ends: 7564 [2022-02-15 00:53:46,026 INFO L932 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 [2022-02-15 00:53:46,026 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 21 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:53:46,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 575 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-02-15 00:53:46,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7564 states. [2022-02-15 00:53:46,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7564 to 7464. [2022-02-15 00:53:46,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7464 states, 7459 states have (on average 1.4123877195334495) internal successors, (10535), 7459 states have internal predecessors, (10535), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:46,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7464 states to 7464 states and 10539 transitions. [2022-02-15 00:53:46,107 INFO L78 Accepts]: Start accepts. Automaton has 7464 states and 10539 transitions. Word has length 296 [2022-02-15 00:53:46,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:53:46,108 INFO L470 AbstractCegarLoop]: Abstraction has 7464 states and 10539 transitions. [2022-02-15 00:53:46,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:46,108 INFO L276 IsEmpty]: Start isEmpty. Operand 7464 states and 10539 transitions. [2022-02-15 00:53:46,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-02-15 00:53:46,114 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:53:46,114 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:53:46,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-02-15 00:53:46,114 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:53:46,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:53:46,115 INFO L85 PathProgramCache]: Analyzing trace with hash -738379758, now seen corresponding path program 1 times [2022-02-15 00:53:46,115 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:53:46,115 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496272320] [2022-02-15 00:53:46,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:53:46,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:53:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:46,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:53:46,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:46,346 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 575 proven. 0 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2022-02-15 00:53:46,346 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:53:46,346 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496272320] [2022-02-15 00:53:46,346 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496272320] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:53:46,346 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:53:46,347 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 00:53:46,347 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952962311] [2022-02-15 00:53:46,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:53:46,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 00:53:46,347 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:53:46,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 00:53:46,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:53:46,348 INFO L87 Difference]: Start difference. First operand 7464 states and 10539 transitions. Second operand has 6 states, 6 states have (on average 25.5) internal successors, (153), 5 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:48,318 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 [] [2022-02-15 00:53:49,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:53:49,580 INFO L93 Difference]: Finished difference Result 8550 states and 11975 transitions. [2022-02-15 00:53:49,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 00:53:49,580 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.5) internal successors, (153), 5 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 307 [2022-02-15 00:53:49,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:53:49,587 INFO L225 Difference]: With dead ends: 8550 [2022-02-15 00:53:49,587 INFO L226 Difference]: Without dead ends: 8550 [2022-02-15 00:53:49,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-15 00:53:49,588 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 39 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:53:49,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 711 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-02-15 00:53:49,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8550 states. [2022-02-15 00:53:49,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8550 to 7941. [2022-02-15 00:53:49,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7941 states, 7936 states have (on average 1.409274193548387) internal successors, (11184), 7936 states have internal predecessors, (11184), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:49,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7941 states to 7941 states and 11188 transitions. [2022-02-15 00:53:49,663 INFO L78 Accepts]: Start accepts. Automaton has 7941 states and 11188 transitions. Word has length 307 [2022-02-15 00:53:49,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:53:49,664 INFO L470 AbstractCegarLoop]: Abstraction has 7941 states and 11188 transitions. [2022-02-15 00:53:49,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.5) internal successors, (153), 5 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:49,664 INFO L276 IsEmpty]: Start isEmpty. Operand 7941 states and 11188 transitions. [2022-02-15 00:53:49,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-02-15 00:53:49,669 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:53:49,669 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:53:49,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-02-15 00:53:49,670 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:53:49,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:53:49,670 INFO L85 PathProgramCache]: Analyzing trace with hash -679159021, now seen corresponding path program 1 times [2022-02-15 00:53:49,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:53:49,670 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277033504] [2022-02-15 00:53:49,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:53:49,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:53:49,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:49,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:53:49,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:49,981 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 575 proven. 0 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2022-02-15 00:53:49,982 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:53:49,982 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277033504] [2022-02-15 00:53:49,982 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277033504] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:53:49,982 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:53:49,982 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:53:49,982 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126349490] [2022-02-15 00:53:49,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:53:49,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:53:49,983 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:53:49,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:53:49,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:53:49,983 INFO L87 Difference]: Start difference. First operand 7941 states and 11188 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:52,222 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:53,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:53:53,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:53:53,898 INFO L93 Difference]: Finished difference Result 8772 states and 12111 transitions. [2022-02-15 00:53:53,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:53:53,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 307 [2022-02-15 00:53:53,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:53:53,905 INFO L225 Difference]: With dead ends: 8772 [2022-02-15 00:53:53,905 INFO L226 Difference]: Without dead ends: 8772 [2022-02-15 00:53:53,905 INFO L932 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 [2022-02-15 00:53:53,905 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 120 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:53:53,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 417 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-02-15 00:53:53,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8772 states. [2022-02-15 00:53:53,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8772 to 7941. [2022-02-15 00:53:53,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7941 states, 7936 states have (on average 1.3868447580645162) internal successors, (11006), 7936 states have internal predecessors, (11006), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:53,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7941 states to 7941 states and 11010 transitions. [2022-02-15 00:53:53,977 INFO L78 Accepts]: Start accepts. Automaton has 7941 states and 11010 transitions. Word has length 307 [2022-02-15 00:53:53,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:53:53,977 INFO L470 AbstractCegarLoop]: Abstraction has 7941 states and 11010 transitions. [2022-02-15 00:53:53,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:53,978 INFO L276 IsEmpty]: Start isEmpty. Operand 7941 states and 11010 transitions. [2022-02-15 00:53:53,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2022-02-15 00:53:53,984 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:53:53,984 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:53:53,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-02-15 00:53:53,984 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:53:53,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:53:53,984 INFO L85 PathProgramCache]: Analyzing trace with hash 459743299, now seen corresponding path program 1 times [2022-02-15 00:53:53,984 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:53:53,984 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112748859] [2022-02-15 00:53:53,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:53:53,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:53:54,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:54,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:53:54,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:54,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1005 backedges. 583 proven. 0 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2022-02-15 00:53:54,195 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:53:54,195 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112748859] [2022-02-15 00:53:54,195 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112748859] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:53:54,195 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:53:54,195 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:53:54,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183943967] [2022-02-15 00:53:54,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:53:54,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:53:54,196 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:53:54,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:53:54,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:53:54,196 INFO L87 Difference]: Start difference. First operand 7941 states and 11010 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:57,288 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 [] [2022-02-15 00:53:58,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:53:58,234 INFO L93 Difference]: Finished difference Result 8053 states and 11112 transitions. [2022-02-15 00:53:58,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:53:58,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 308 [2022-02-15 00:53:58,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:53:58,241 INFO L225 Difference]: With dead ends: 8053 [2022-02-15 00:53:58,242 INFO L226 Difference]: Without dead ends: 8053 [2022-02-15 00:53:58,242 INFO L932 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 [2022-02-15 00:53:58,242 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 35 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:53:58,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 525 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-02-15 00:53:58,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8053 states. [2022-02-15 00:53:58,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8053 to 7915. [2022-02-15 00:53:58,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7915 states, 7910 states have (on average 1.3855878634639696) internal successors, (10960), 7910 states have internal predecessors, (10960), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:58,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7915 states to 7915 states and 10964 transitions. [2022-02-15 00:53:58,331 INFO L78 Accepts]: Start accepts. Automaton has 7915 states and 10964 transitions. Word has length 308 [2022-02-15 00:53:58,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:53:58,332 INFO L470 AbstractCegarLoop]: Abstraction has 7915 states and 10964 transitions. [2022-02-15 00:53:58,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:58,332 INFO L276 IsEmpty]: Start isEmpty. Operand 7915 states and 10964 transitions. [2022-02-15 00:53:58,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2022-02-15 00:53:58,338 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:53:58,338 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:53:58,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-02-15 00:53:58,338 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:53:58,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:53:58,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1332839289, now seen corresponding path program 1 times [2022-02-15 00:53:58,339 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:53:58,339 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396338553] [2022-02-15 00:53:58,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:53:58,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:53:58,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:58,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:53:58,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:53:58,512 INFO L134 CoverageAnalysis]: Checked inductivity of 883 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-02-15 00:53:58,513 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:53:58,513 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396338553] [2022-02-15 00:53:58,513 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396338553] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:53:58,513 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:53:58,513 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:53:58,513 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669513577] [2022-02-15 00:53:58,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:53:58,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:53:58,514 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:53:58,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:53:58,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:53:58,514 INFO L87 Difference]: Start difference. First operand 7915 states and 10964 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:53:59,801 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:54:02,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:54:04,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:54:04,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:54:04,804 INFO L93 Difference]: Finished difference Result 8029 states and 11101 transitions. [2022-02-15 00:54:04,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:54:04,805 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 308 [2022-02-15 00:54:04,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:54:04,812 INFO L225 Difference]: With dead ends: 8029 [2022-02-15 00:54:04,812 INFO L226 Difference]: Without dead ends: 8029 [2022-02-15 00:54:04,812 INFO L932 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 [2022-02-15 00:54:04,812 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 14 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:54:04,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 565 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 385 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-02-15 00:54:04,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8029 states. [2022-02-15 00:54:04,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8029 to 7985. [2022-02-15 00:54:04,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7985 states, 7980 states have (on average 1.3848370927318296) internal successors, (11051), 7980 states have internal predecessors, (11051), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:04,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7985 states to 7985 states and 11055 transitions. [2022-02-15 00:54:04,868 INFO L78 Accepts]: Start accepts. Automaton has 7985 states and 11055 transitions. Word has length 308 [2022-02-15 00:54:04,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:54:04,868 INFO L470 AbstractCegarLoop]: Abstraction has 7985 states and 11055 transitions. [2022-02-15 00:54:04,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:04,868 INFO L276 IsEmpty]: Start isEmpty. Operand 7985 states and 11055 transitions. [2022-02-15 00:54:04,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2022-02-15 00:54:04,874 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:54:04,874 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:54:04,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-02-15 00:54:04,875 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:54:04,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:54:04,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1450830092, now seen corresponding path program 1 times [2022-02-15 00:54:04,875 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:54:04,875 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797972566] [2022-02-15 00:54:04,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:54:04,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:54:05,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:05,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:54:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:05,123 INFO L134 CoverageAnalysis]: Checked inductivity of 883 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-02-15 00:54:05,124 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:54:05,124 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797972566] [2022-02-15 00:54:05,124 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797972566] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:54:05,124 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:54:05,124 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:54:05,124 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293312827] [2022-02-15 00:54:05,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:54:05,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:54:05,125 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:54:05,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:54:05,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:54:05,125 INFO L87 Difference]: Start difference. First operand 7985 states and 11055 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) [2022-02-15 00:54:07,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:54:08,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:54:09,947 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 [] [2022-02-15 00:54:10,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:54:10,341 INFO L93 Difference]: Finished difference Result 8300 states and 11425 transitions. [2022-02-15 00:54:10,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:54:10,341 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 309 [2022-02-15 00:54:10,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:54:10,351 INFO L225 Difference]: With dead ends: 8300 [2022-02-15 00:54:10,351 INFO L226 Difference]: Without dead ends: 8300 [2022-02-15 00:54:10,351 INFO L932 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 [2022-02-15 00:54:10,351 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 48 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:54:10,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 603 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 498 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-02-15 00:54:10,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8300 states. [2022-02-15 00:54:10,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8300 to 7985. [2022-02-15 00:54:10,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7985 states, 7980 states have (on average 1.3830827067669174) internal successors, (11037), 7980 states have internal predecessors, (11037), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:10,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7985 states to 7985 states and 11041 transitions. [2022-02-15 00:54:10,427 INFO L78 Accepts]: Start accepts. Automaton has 7985 states and 11041 transitions. Word has length 309 [2022-02-15 00:54:10,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:54:10,427 INFO L470 AbstractCegarLoop]: Abstraction has 7985 states and 11041 transitions. [2022-02-15 00:54:10,427 INFO L471 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) [2022-02-15 00:54:10,427 INFO L276 IsEmpty]: Start isEmpty. Operand 7985 states and 11041 transitions. [2022-02-15 00:54:10,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-02-15 00:54:10,433 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:54:10,433 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:54:10,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-02-15 00:54:10,433 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:54:10,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:54:10,434 INFO L85 PathProgramCache]: Analyzing trace with hash 962661665, now seen corresponding path program 1 times [2022-02-15 00:54:10,434 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:54:10,434 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976680103] [2022-02-15 00:54:10,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:54:10,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:54:10,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:10,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:54:10,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:10,669 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2022-02-15 00:54:10,669 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:54:10,669 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976680103] [2022-02-15 00:54:10,670 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976680103] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:54:10,670 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:54:10,670 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:54:10,670 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313907681] [2022-02-15 00:54:10,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:54:10,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:54:10,670 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:54:10,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:54:10,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:54:10,671 INFO L87 Difference]: Start difference. First operand 7985 states and 11041 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:13,080 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 [] [2022-02-15 00:54:15,737 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 [] [2022-02-15 00:54:16,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:54:16,194 INFO L93 Difference]: Finished difference Result 8773 states and 12049 transitions. [2022-02-15 00:54:16,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:54:16,194 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 310 [2022-02-15 00:54:16,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:54:16,202 INFO L225 Difference]: With dead ends: 8773 [2022-02-15 00:54:16,202 INFO L226 Difference]: Without dead ends: 8773 [2022-02-15 00:54:16,202 INFO L932 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 [2022-02-15 00:54:16,202 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 105 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 55 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:54:16,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 378 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 463 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-02-15 00:54:16,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8773 states. [2022-02-15 00:54:16,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8773 to 7943. [2022-02-15 00:54:16,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7943 states, 7938 states have (on average 1.3790627362055934) internal successors, (10947), 7938 states have internal predecessors, (10947), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:16,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7943 states to 7943 states and 10951 transitions. [2022-02-15 00:54:16,263 INFO L78 Accepts]: Start accepts. Automaton has 7943 states and 10951 transitions. Word has length 310 [2022-02-15 00:54:16,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:54:16,263 INFO L470 AbstractCegarLoop]: Abstraction has 7943 states and 10951 transitions. [2022-02-15 00:54:16,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:16,263 INFO L276 IsEmpty]: Start isEmpty. Operand 7943 states and 10951 transitions. [2022-02-15 00:54:16,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-02-15 00:54:16,270 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:54:16,270 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:54:16,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-02-15 00:54:16,271 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:54:16,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:54:16,271 INFO L85 PathProgramCache]: Analyzing trace with hash -531049626, now seen corresponding path program 1 times [2022-02-15 00:54:16,271 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:54:16,271 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147421106] [2022-02-15 00:54:16,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:54:16,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:54:16,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:16,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:54:16,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:16,435 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 553 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-02-15 00:54:16,435 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:54:16,436 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147421106] [2022-02-15 00:54:16,436 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147421106] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:54:16,436 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:54:16,436 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:54:16,436 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732896169] [2022-02-15 00:54:16,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:54:16,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:54:16,436 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:54:16,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:54:16,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:54:16,437 INFO L87 Difference]: Start difference. First operand 7943 states and 10951 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:18,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:54:20,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:54:21,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:54:21,556 INFO L93 Difference]: Finished difference Result 8006 states and 10997 transitions. [2022-02-15 00:54:21,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:54:21,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 318 [2022-02-15 00:54:21,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:54:21,562 INFO L225 Difference]: With dead ends: 8006 [2022-02-15 00:54:21,562 INFO L226 Difference]: Without dead ends: 7966 [2022-02-15 00:54:21,562 INFO L932 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 [2022-02-15 00:54:21,563 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 15 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:54:21,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 565 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-02-15 00:54:21,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7966 states. [2022-02-15 00:54:21,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7966 to 7609. [2022-02-15 00:54:21,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7609 states, 7604 states have (on average 1.3801946344029459) internal successors, (10495), 7604 states have internal predecessors, (10495), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:21,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7609 states to 7609 states and 10499 transitions. [2022-02-15 00:54:21,616 INFO L78 Accepts]: Start accepts. Automaton has 7609 states and 10499 transitions. Word has length 318 [2022-02-15 00:54:21,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:54:21,616 INFO L470 AbstractCegarLoop]: Abstraction has 7609 states and 10499 transitions. [2022-02-15 00:54:21,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:21,616 INFO L276 IsEmpty]: Start isEmpty. Operand 7609 states and 10499 transitions. [2022-02-15 00:54:21,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-02-15 00:54:21,622 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:54:21,622 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:54:21,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-02-15 00:54:21,622 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:54:21,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:54:21,623 INFO L85 PathProgramCache]: Analyzing trace with hash -57476552, now seen corresponding path program 1 times [2022-02-15 00:54:21,623 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:54:21,623 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674080562] [2022-02-15 00:54:21,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:54:21,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:54:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:21,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:54:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:21,946 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 192 proven. 33 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2022-02-15 00:54:21,946 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:54:21,946 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674080562] [2022-02-15 00:54:21,947 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674080562] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:54:21,947 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74245855] [2022-02-15 00:54:21,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:54:21,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:54:21,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:54:21,981 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) [2022-02-15 00:54:21,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-15 00:54:23,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:23,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 1729 conjuncts, 29 conjunts are in the unsatisfiable core [2022-02-15 00:54:23,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:54:23,504 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:54:23,505 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-15 00:54:23,560 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-15 00:54:23,561 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-15 00:54:23,714 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-02-15 00:54:23,871 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-15 00:54:23,892 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-02-15 00:54:23,898 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-02-15 00:54:23,914 INFO L353 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-02-15 00:54:23,914 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-02-15 00:54:24,065 INFO L353 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-02-15 00:54:24,066 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-02-15 00:54:24,246 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 11 [2022-02-15 00:54:24,278 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 188 proven. 141 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2022-02-15 00:54:24,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 00:54:24,381 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-02-15 00:54:24,390 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-02-15 00:54:26,385 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_10 Int) (v_arrayElimCell_11 Int)) (not (= 8545 (select (select (store |c_#memory_int| v_arrayElimCell_10 (store (select |c_#memory_int| v_arrayElimCell_10) (+ 844 v_arrayElimCell_11) 8640)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset))))) is different from false [2022-02-15 00:54:26,711 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2022-02-15 00:54:26,711 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74245855] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-15 00:54:26,711 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-15 00:54:26,711 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 10] total 14 [2022-02-15 00:54:26,711 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615195169] [2022-02-15 00:54:26,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:54:26,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:54:26,712 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:54:26,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:54:26,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=128, Unknown=1, NotChecked=22, Total=182 [2022-02-15 00:54:26,713 INFO L87 Difference]: Start difference. First operand 7609 states and 10499 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:28,193 WARN L838 $PredicateComparison]: unable to prove that (and (not (= 8545 (select (select |c_#memory_int| c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)))) (forall ((v_arrayElimCell_10 Int) (v_arrayElimCell_11 Int)) (not (= 8545 (select (select (store |c_#memory_int| v_arrayElimCell_10 (store (select |c_#memory_int| v_arrayElimCell_10) (+ 844 v_arrayElimCell_11) 8640)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)))))) is different from false [2022-02-15 00:54:28,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:54:28,330 INFO L93 Difference]: Finished difference Result 8649 states and 11822 transitions. [2022-02-15 00:54:28,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:54:28,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 320 [2022-02-15 00:54:28,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:54:28,338 INFO L225 Difference]: With dead ends: 8649 [2022-02-15 00:54:28,338 INFO L226 Difference]: Without dead ends: 8649 [2022-02-15 00:54:28,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 658 GetRequests, 643 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=37, Invalid=151, Unknown=2, NotChecked=50, Total=240 [2022-02-15 00:54:28,338 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 112 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 257 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:54:28,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 493 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 238 Invalid, 0 Unknown, 257 Unchecked, 0.8s Time] [2022-02-15 00:54:28,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8649 states. [2022-02-15 00:54:28,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8649 to 7783. [2022-02-15 00:54:28,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7783 states, 7778 states have (on average 1.3713036770377989) internal successors, (10666), 7778 states have internal predecessors, (10666), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:28,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7783 states to 7783 states and 10670 transitions. [2022-02-15 00:54:28,408 INFO L78 Accepts]: Start accepts. Automaton has 7783 states and 10670 transitions. Word has length 320 [2022-02-15 00:54:28,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:54:28,409 INFO L470 AbstractCegarLoop]: Abstraction has 7783 states and 10670 transitions. [2022-02-15 00:54:28,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:28,409 INFO L276 IsEmpty]: Start isEmpty. Operand 7783 states and 10670 transitions. [2022-02-15 00:54:28,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-02-15 00:54:28,415 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:54:28,415 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:54:28,440 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-15 00:54:28,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:54:28,616 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:54:28,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:54:28,616 INFO L85 PathProgramCache]: Analyzing trace with hash 968015447, now seen corresponding path program 1 times [2022-02-15 00:54:28,616 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:54:28,617 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349803398] [2022-02-15 00:54:28,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:54:28,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:54:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:29,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:54:29,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:29,089 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 193 proven. 13 refuted. 0 times theorem prover too weak. 691 trivial. 0 not checked. [2022-02-15 00:54:29,089 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:54:29,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349803398] [2022-02-15 00:54:29,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349803398] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:54:29,090 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900862656] [2022-02-15 00:54:29,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:54:29,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:54:29,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:54:29,091 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:54:29,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-15 00:54:30,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:30,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 1730 conjuncts, 29 conjunts are in the unsatisfiable core [2022-02-15 00:54:30,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:54:30,563 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:54:30,563 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-15 00:54:30,610 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-15 00:54:30,610 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-15 00:54:30,760 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-02-15 00:54:30,909 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-15 00:54:30,931 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-02-15 00:54:30,938 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-02-15 00:54:30,983 INFO L353 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-02-15 00:54:30,983 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-02-15 00:54:31,059 INFO L353 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-02-15 00:54:31,059 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-02-15 00:54:31,210 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 11 [2022-02-15 00:54:31,240 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 188 proven. 141 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2022-02-15 00:54:31,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 00:54:31,328 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-02-15 00:54:31,330 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-02-15 00:54:32,143 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_21 Int) (v_arrayElimCell_22 Int)) (not (= 8545 (select (select (store |c_#memory_int| v_arrayElimCell_21 (store (select |c_#memory_int| v_arrayElimCell_21) (+ 844 v_arrayElimCell_22) 3)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset))))) is different from false [2022-02-15 00:54:32,444 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2022-02-15 00:54:32,444 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900862656] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-15 00:54:32,444 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-15 00:54:32,444 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 10] total 14 [2022-02-15 00:54:32,444 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482104688] [2022-02-15 00:54:32,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:54:32,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:54:32,445 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:54:32,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:54:32,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=124, Unknown=1, NotChecked=22, Total=182 [2022-02-15 00:54:32,446 INFO L87 Difference]: Start difference. First operand 7783 states and 10670 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:34,172 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:54:36,331 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_arrayElimCell_21 Int) (v_arrayElimCell_22 Int)) (not (= 8545 (select (select (store |c_#memory_int| v_arrayElimCell_21 (store (select |c_#memory_int| v_arrayElimCell_21) (+ 844 v_arrayElimCell_22) 3)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset))))) (not (= 8545 (select (select |c_#memory_int| c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset))))) is different from false [2022-02-15 00:54:36,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:54:36,496 INFO L93 Difference]: Finished difference Result 8631 states and 11798 transitions. [2022-02-15 00:54:36,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:54:36,497 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 320 [2022-02-15 00:54:36,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:54:36,508 INFO L225 Difference]: With dead ends: 8631 [2022-02-15 00:54:36,508 INFO L226 Difference]: Without dead ends: 8631 [2022-02-15 00:54:36,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 639 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=42, Invalid=146, Unknown=2, NotChecked=50, Total=240 [2022-02-15 00:54:36,508 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 112 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 254 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:54:36,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 505 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 238 Invalid, 0 Unknown, 254 Unchecked, 2.0s Time] [2022-02-15 00:54:36,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8631 states. [2022-02-15 00:54:36,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8631 to 7609. [2022-02-15 00:54:36,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7609 states, 7604 states have (on average 1.3711204629142557) internal successors, (10426), 7604 states have internal predecessors, (10426), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:36,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7609 states to 7609 states and 10430 transitions. [2022-02-15 00:54:36,582 INFO L78 Accepts]: Start accepts. Automaton has 7609 states and 10430 transitions. Word has length 320 [2022-02-15 00:54:36,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:54:36,583 INFO L470 AbstractCegarLoop]: Abstraction has 7609 states and 10430 transitions. [2022-02-15 00:54:36,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:36,583 INFO L276 IsEmpty]: Start isEmpty. Operand 7609 states and 10430 transitions. [2022-02-15 00:54:36,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-02-15 00:54:36,589 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:54:36,589 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-02-15 00:54:36,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-15 00:54:36,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable73 [2022-02-15 00:54:36,791 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:54:36,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:54:36,791 INFO L85 PathProgramCache]: Analyzing trace with hash 67046501, now seen corresponding path program 1 times [2022-02-15 00:54:36,791 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:54:36,791 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6516096] [2022-02-15 00:54:36,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:54:36,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:54:37,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:37,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:54:37,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:37,294 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 905 trivial. 0 not checked. [2022-02-15 00:54:37,295 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:54:37,295 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6516096] [2022-02-15 00:54:37,295 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6516096] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:54:37,295 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:54:37,295 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-15 00:54:37,295 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594973036] [2022-02-15 00:54:37,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:54:37,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-15 00:54:37,296 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:54:37,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-15 00:54:37,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-15 00:54:37,296 INFO L87 Difference]: Start difference. First operand 7609 states and 10430 transitions. Second operand has 7 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 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) [2022-02-15 00:54:38,598 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 [] [2022-02-15 00:54:40,814 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:54:42,279 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:54:44,300 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 [] [2022-02-15 00:54:44,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:54:44,777 INFO L93 Difference]: Finished difference Result 7617 states and 10440 transitions. [2022-02-15 00:54:44,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 00:54:44,778 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 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 324 [2022-02-15 00:54:44,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:54:44,786 INFO L225 Difference]: With dead ends: 7617 [2022-02-15 00:54:44,786 INFO L226 Difference]: Without dead ends: 7609 [2022-02-15 00:54:44,786 INFO L932 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 [2022-02-15 00:54:44,787 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 7 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:54:44,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 842 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 443 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-02-15 00:54:44,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7609 states. [2022-02-15 00:54:44,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7609 to 7609. [2022-02-15 00:54:44,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7609 states, 7604 states have (on average 1.3709889531825354) internal successors, (10425), 7604 states have internal predecessors, (10425), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:54:44,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7609 states to 7609 states and 10429 transitions. [2022-02-15 00:54:44,883 INFO L78 Accepts]: Start accepts. Automaton has 7609 states and 10429 transitions. Word has length 324 [2022-02-15 00:54:44,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:54:44,883 INFO L470 AbstractCegarLoop]: Abstraction has 7609 states and 10429 transitions. [2022-02-15 00:54:44,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 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) [2022-02-15 00:54:44,884 INFO L276 IsEmpty]: Start isEmpty. Operand 7609 states and 10429 transitions. [2022-02-15 00:54:44,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-02-15 00:54:44,891 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:54:44,892 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-02-15 00:54:44,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-02-15 00:54:44,892 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:54:44,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:54:44,893 INFO L85 PathProgramCache]: Analyzing trace with hash -762602492, now seen corresponding path program 1 times [2022-02-15 00:54:44,894 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:54:44,894 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779186036] [2022-02-15 00:54:44,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:54:44,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:54:45,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:46,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:54:46,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:46,055 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 399 proven. 413 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-02-15 00:54:46,056 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:54:46,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779186036] [2022-02-15 00:54:46,056 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779186036] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:54:46,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963952229] [2022-02-15 00:54:46,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:54:46,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:54:46,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:54:46,057 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:54:46,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-15 00:54:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:54:47,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 1689 conjuncts, 101 conjunts are in the unsatisfiable core [2022-02-15 00:54:47,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:54:47,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:54:47,577 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-02-15 00:54:47,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:54:47,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:54:47,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:54:47,753 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-15 00:54:47,753 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-02-15 00:54:47,966 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-02-15 00:54:47,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:54:47,969 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-02-15 00:54:47,977 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-15 00:54:48,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:54:48,112 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-02-15 00:54:48,134 INFO L353 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-02-15 00:54:48,134 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-02-15 00:54:48,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:54:48,139 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 66 [2022-02-15 00:54:48,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:54:48,935 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-02-15 00:54:48,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:54:48,954 INFO L353 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-02-15 00:54:48,954 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-02-15 00:54:48,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:54:48,959 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-02-15 00:54:49,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:54:49,029 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-02-15 00:54:49,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:54:49,052 INFO L353 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-02-15 00:54:49,052 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-02-15 00:54:49,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:54:49,057 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-02-15 00:54:50,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:54:50,059 INFO L353 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-02-15 00:54:50,059 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-02-15 00:54:50,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:54:50,094 INFO L353 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-02-15 00:54:50,095 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-02-15 00:54:50,139 INFO L353 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-02-15 00:54:50,140 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-02-15 00:54:53,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:54:53,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:54:53,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:54:53,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:54:53,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:54:53,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:54:53,400 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 295 treesize of output 253 [2022-02-15 00:54:53,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:54:53,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:54:53,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:54:53,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:54:53,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:54:53,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:54:53,411 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 295 treesize of output 253 [2022-02-15 00:54:53,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:54:53,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:54:53,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:54:53,446 INFO L353 Elim1Store]: treesize reduction 85, result has 18.3 percent of original size [2022-02-15 00:54:53,447 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 295 treesize of output 299 [2022-02-15 00:55:33,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:55:33,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:55:33,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:55:33,778 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 290 treesize of output 244 [2022-02-15 00:55:33,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:55:33,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:55:33,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:55:33,786 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 290 treesize of output 244 [2022-02-15 00:55:33,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:55:33,804 INFO L353 Elim1Store]: treesize reduction 51, result has 15.0 percent of original size [2022-02-15 00:55:33,804 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 290 treesize of output 280 [2022-02-15 00:55:35,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:55:35,127 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 120 [2022-02-15 00:55:35,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:55:35,131 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 78 [2022-02-15 00:55:35,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:55:35,156 INFO L353 Elim1Store]: treesize reduction 143, result has 11.7 percent of original size [2022-02-15 00:55:35,157 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 97 treesize of output 93 [2022-02-15 00:55:35,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:55:35,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:55:35,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:55:35,236 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-15 00:55:35,236 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2022-02-15 00:55:35,424 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-15 00:55:35,424 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 11 [2022-02-15 00:55:35,454 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 453 proven. 331 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-02-15 00:55:35,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 00:55:40,592 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-15 00:55:40,594 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 338 treesize of output 320 [2022-02-15 00:55:40,597 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-15 00:55:40,599 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-15 00:55:40,600 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 290 treesize of output 254 [2022-02-15 00:55:43,113 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 581 proven. 141 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-02-15 00:55:43,114 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963952229] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-15 00:55:43,114 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-15 00:55:43,114 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 13] total 46 [2022-02-15 00:55:43,114 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146935733] [2022-02-15 00:55:43,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-15 00:55:43,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-02-15 00:55:43,115 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:55:43,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-02-15 00:55:43,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=1791, Unknown=1, NotChecked=0, Total=2070 [2022-02-15 00:55:43,116 INFO L87 Difference]: Start difference. First operand 7609 states and 10429 transitions. Second operand has 46 states, 46 states have (on average 13.065217391304348) internal successors, (601), 44 states have internal predecessors, (601), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:55:45,133 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 [] [2022-02-15 00:56:00,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:56:00,622 INFO L93 Difference]: Finished difference Result 28677 states and 38461 transitions. [2022-02-15 00:56:00,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2022-02-15 00:56:00,622 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 13.065217391304348) internal successors, (601), 44 states have internal predecessors, (601), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 324 [2022-02-15 00:56:00,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:56:00,644 INFO L225 Difference]: With dead ends: 28677 [2022-02-15 00:56:00,644 INFO L226 Difference]: Without dead ends: 28677 [2022-02-15 00:56:00,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 925 GetRequests, 729 SyntacticMatches, 7 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12739 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=4158, Invalid=32131, Unknown=1, NotChecked=0, Total=36290 [2022-02-15 00:56:00,646 INFO L933 BasicCegarLoop]: 632 mSDtfsCounter, 3224 mSDsluCounter, 9443 mSDsCounter, 0 mSdLazyCounter, 9598 mSolverCounterSat, 508 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3224 SdHoareTripleChecker+Valid, 10075 SdHoareTripleChecker+Invalid, 12643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 508 IncrementalHoareTripleChecker+Valid, 9598 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 2536 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:56:00,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3224 Valid, 10075 Invalid, 12643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [508 Valid, 9598 Invalid, 1 Unknown, 2536 Unchecked, 10.0s Time] [2022-02-15 00:56:00,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28677 states. [2022-02-15 00:56:00,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28677 to 16886. [2022-02-15 00:56:00,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16886 states, 16881 states have (on average 1.366625199928914) internal successors, (23070), 16881 states have internal predecessors, (23070), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:00,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16886 states to 16886 states and 23074 transitions. [2022-02-15 00:56:00,825 INFO L78 Accepts]: Start accepts. Automaton has 16886 states and 23074 transitions. Word has length 324 [2022-02-15 00:56:00,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:56:00,825 INFO L470 AbstractCegarLoop]: Abstraction has 16886 states and 23074 transitions. [2022-02-15 00:56:00,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 13.065217391304348) internal successors, (601), 44 states have internal predecessors, (601), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:00,826 INFO L276 IsEmpty]: Start isEmpty. Operand 16886 states and 23074 transitions. [2022-02-15 00:56:00,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-02-15 00:56:00,837 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:56:00,837 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:56:00,861 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-15 00:56:01,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:56:01,038 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:56:01,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:56:01,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1527275854, now seen corresponding path program 1 times [2022-02-15 00:56:01,039 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:56:01,039 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943753257] [2022-02-15 00:56:01,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:56:01,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:56:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:56:01,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:56:01,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:56:01,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1151 backedges. 678 proven. 0 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2022-02-15 00:56:01,252 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:56:01,252 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943753257] [2022-02-15 00:56:01,252 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943753257] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:56:01,252 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:56:01,253 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:56:01,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827532437] [2022-02-15 00:56:01,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:56:01,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:56:01,253 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:56:01,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:56:01,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:56:01,254 INFO L87 Difference]: Start difference. First operand 16886 states and 23074 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:05,458 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 [] [2022-02-15 00:56:05,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:56:05,902 INFO L93 Difference]: Finished difference Result 17849 states and 23884 transitions. [2022-02-15 00:56:05,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:56:05,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 324 [2022-02-15 00:56:05,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:56:05,917 INFO L225 Difference]: With dead ends: 17849 [2022-02-15 00:56:05,917 INFO L226 Difference]: Without dead ends: 17849 [2022-02-15 00:56:05,917 INFO L932 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 [2022-02-15 00:56:05,918 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 113 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:56:05,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 413 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-02-15 00:56:05,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17849 states. [2022-02-15 00:56:06,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17849 to 16886. [2022-02-15 00:56:06,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16886 states, 16881 states have (on average 1.3402642023576803) internal successors, (22625), 16881 states have internal predecessors, (22625), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:06,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16886 states to 16886 states and 22629 transitions. [2022-02-15 00:56:06,158 INFO L78 Accepts]: Start accepts. Automaton has 16886 states and 22629 transitions. Word has length 324 [2022-02-15 00:56:06,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:56:06,158 INFO L470 AbstractCegarLoop]: Abstraction has 16886 states and 22629 transitions. [2022-02-15 00:56:06,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:06,158 INFO L276 IsEmpty]: Start isEmpty. Operand 16886 states and 22629 transitions. [2022-02-15 00:56:06,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-02-15 00:56:06,169 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:56:06,169 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:56:06,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-02-15 00:56:06,169 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:56:06,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:56:06,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1144040136, now seen corresponding path program 1 times [2022-02-15 00:56:06,170 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:56:06,170 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690822012] [2022-02-15 00:56:06,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:56:06,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:56:06,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:56:06,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:56:06,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:56:06,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1161 backedges. 688 proven. 0 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2022-02-15 00:56:06,340 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:56:06,341 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690822012] [2022-02-15 00:56:06,341 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690822012] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:56:06,341 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:56:06,341 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:56:06,341 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709905807] [2022-02-15 00:56:06,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:56:06,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:56:06,341 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:56:06,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:56:06,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:56:06,342 INFO L87 Difference]: Start difference. First operand 16886 states and 22629 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:08,351 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 [] [2022-02-15 00:56:08,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:56:08,719 INFO L93 Difference]: Finished difference Result 17081 states and 22793 transitions. [2022-02-15 00:56:08,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:56:08,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 325 [2022-02-15 00:56:08,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:56:08,738 INFO L225 Difference]: With dead ends: 17081 [2022-02-15 00:56:08,738 INFO L226 Difference]: Without dead ends: 17081 [2022-02-15 00:56:08,738 INFO L932 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 [2022-02-15 00:56:08,739 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 36 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:56:08,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 517 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 426 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 00:56:08,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17081 states. [2022-02-15 00:56:08,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17081 to 16886. [2022-02-15 00:56:08,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16886 states, 16881 states have (on average 1.3376577216989516) internal successors, (22581), 16881 states have internal predecessors, (22581), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:08,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16886 states to 16886 states and 22585 transitions. [2022-02-15 00:56:08,933 INFO L78 Accepts]: Start accepts. Automaton has 16886 states and 22585 transitions. Word has length 325 [2022-02-15 00:56:08,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:56:08,933 INFO L470 AbstractCegarLoop]: Abstraction has 16886 states and 22585 transitions. [2022-02-15 00:56:08,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:08,933 INFO L276 IsEmpty]: Start isEmpty. Operand 16886 states and 22585 transitions. [2022-02-15 00:56:08,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-02-15 00:56:08,944 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:56:08,945 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:56:08,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-02-15 00:56:08,945 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:56:08,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:56:08,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1094574037, now seen corresponding path program 1 times [2022-02-15 00:56:08,947 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:56:08,947 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062115341] [2022-02-15 00:56:08,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:56:08,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:56:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:56:09,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:56:09,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:56:09,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1171 backedges. 698 proven. 0 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2022-02-15 00:56:09,121 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:56:09,121 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062115341] [2022-02-15 00:56:09,121 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062115341] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:56:09,121 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:56:09,121 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:56:09,121 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440584123] [2022-02-15 00:56:09,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:56:09,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:56:09,122 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:56:09,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:56:09,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:56:09,122 INFO L87 Difference]: Start difference. First operand 16886 states and 22585 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:10,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:56:12,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:56:14,681 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:56:16,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:56:17,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:56:17,193 INFO L93 Difference]: Finished difference Result 17368 states and 22792 transitions. [2022-02-15 00:56:17,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:56:17,193 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 326 [2022-02-15 00:56:17,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:56:17,207 INFO L225 Difference]: With dead ends: 17368 [2022-02-15 00:56:17,207 INFO L226 Difference]: Without dead ends: 17349 [2022-02-15 00:56:17,208 INFO L932 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 [2022-02-15 00:56:17,208 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 119 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 52 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:56:17,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 376 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 461 Invalid, 3 Unknown, 0 Unchecked, 8.0s Time] [2022-02-15 00:56:17,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17349 states. [2022-02-15 00:56:17,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17349 to 11844. [2022-02-15 00:56:17,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11844 states, 11839 states have (on average 1.3242672523017147) internal successors, (15678), 11839 states have internal predecessors, (15678), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:17,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11844 states to 11844 states and 15682 transitions. [2022-02-15 00:56:17,308 INFO L78 Accepts]: Start accepts. Automaton has 11844 states and 15682 transitions. Word has length 326 [2022-02-15 00:56:17,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:56:17,308 INFO L470 AbstractCegarLoop]: Abstraction has 11844 states and 15682 transitions. [2022-02-15 00:56:17,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:17,308 INFO L276 IsEmpty]: Start isEmpty. Operand 11844 states and 15682 transitions. [2022-02-15 00:56:17,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-02-15 00:56:17,315 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:56:17,315 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 7, 7, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:56:17,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-02-15 00:56:17,315 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:56:17,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:56:17,315 INFO L85 PathProgramCache]: Analyzing trace with hash 2043372826, now seen corresponding path program 1 times [2022-02-15 00:56:17,316 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:56:17,316 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219168729] [2022-02-15 00:56:17,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:56:17,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:56:17,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:56:17,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:56:17,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:56:17,585 INFO L134 CoverageAnalysis]: Checked inductivity of 1043 backedges. 516 proven. 114 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2022-02-15 00:56:17,585 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:56:17,585 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219168729] [2022-02-15 00:56:17,585 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219168729] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:56:17,585 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170965747] [2022-02-15 00:56:17,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:56:17,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:56:17,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:56:17,588 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:56:17,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-15 00:56:19,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:56:19,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 1800 conjuncts, 13 conjunts are in the unsatisfiable core [2022-02-15 00:56:19,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:56:19,115 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:56:19,115 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-15 00:56:19,164 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-15 00:56:19,164 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-15 00:56:19,379 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:56:19,379 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-15 00:56:19,423 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-02-15 00:56:19,495 INFO L134 CoverageAnalysis]: Checked inductivity of 1043 backedges. 502 proven. 112 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2022-02-15 00:56:19,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 00:56:19,645 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2022-02-15 00:56:19,899 INFO L134 CoverageAnalysis]: Checked inductivity of 1043 backedges. 507 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2022-02-15 00:56:19,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170965747] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-15 00:56:19,899 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-15 00:56:19,900 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 5] total 12 [2022-02-15 00:56:19,900 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859668180] [2022-02-15 00:56:19,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:56:19,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:56:19,900 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:56:19,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:56:19,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-02-15 00:56:19,901 INFO L87 Difference]: Start difference. First operand 11844 states and 15682 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:21,586 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 [] [2022-02-15 00:56:21,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:56:21,836 INFO L93 Difference]: Finished difference Result 12371 states and 16194 transitions. [2022-02-15 00:56:21,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:56:21,836 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 326 [2022-02-15 00:56:21,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:56:21,845 INFO L225 Difference]: With dead ends: 12371 [2022-02-15 00:56:21,845 INFO L226 Difference]: Without dead ends: 12371 [2022-02-15 00:56:21,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 662 GetRequests, 651 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-02-15 00:56:21,846 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 74 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:56:21,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 510 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-02-15 00:56:21,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12371 states. [2022-02-15 00:56:21,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12371 to 11693. [2022-02-15 00:56:21,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11693 states, 11688 states have (on average 1.3129705681040382) internal successors, (15346), 11688 states have internal predecessors, (15346), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:21,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11693 states to 11693 states and 15350 transitions. [2022-02-15 00:56:21,929 INFO L78 Accepts]: Start accepts. Automaton has 11693 states and 15350 transitions. Word has length 326 [2022-02-15 00:56:21,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:56:21,929 INFO L470 AbstractCegarLoop]: Abstraction has 11693 states and 15350 transitions. [2022-02-15 00:56:21,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:21,929 INFO L276 IsEmpty]: Start isEmpty. Operand 11693 states and 15350 transitions. [2022-02-15 00:56:21,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2022-02-15 00:56:21,936 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:56:21,936 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:56:21,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-15 00:56:22,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:56:22,137 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:56:22,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:56:22,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1139404425, now seen corresponding path program 1 times [2022-02-15 00:56:22,137 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:56:22,137 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259425203] [2022-02-15 00:56:22,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:56:22,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:56:22,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:56:22,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:56:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:56:22,299 INFO L134 CoverageAnalysis]: Checked inductivity of 984 backedges. 630 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2022-02-15 00:56:22,299 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:56:22,299 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259425203] [2022-02-15 00:56:22,299 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259425203] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:56:22,299 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:56:22,299 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:56:22,299 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163147387] [2022-02-15 00:56:22,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:56:22,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:56:22,300 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:56:22,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:56:22,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:56:22,300 INFO L87 Difference]: Start difference. First operand 11693 states and 15350 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:24,309 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 [] [2022-02-15 00:56:24,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:56:24,682 INFO L93 Difference]: Finished difference Result 11510 states and 15105 transitions. [2022-02-15 00:56:24,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:56:24,682 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 335 [2022-02-15 00:56:24,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:56:24,691 INFO L225 Difference]: With dead ends: 11510 [2022-02-15 00:56:24,691 INFO L226 Difference]: Without dead ends: 11082 [2022-02-15 00:56:24,691 INFO L932 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 [2022-02-15 00:56:24,691 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 10 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:56:24,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 553 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 365 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:56:24,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11082 states. [2022-02-15 00:56:24,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11082 to 10919. [2022-02-15 00:56:24,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10919 states, 10914 states have (on average 1.3120762323621038) internal successors, (14320), 10914 states have internal predecessors, (14320), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:24,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10919 states to 10919 states and 14324 transitions. [2022-02-15 00:56:24,776 INFO L78 Accepts]: Start accepts. Automaton has 10919 states and 14324 transitions. Word has length 335 [2022-02-15 00:56:24,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:56:24,776 INFO L470 AbstractCegarLoop]: Abstraction has 10919 states and 14324 transitions. [2022-02-15 00:56:24,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:56:24,776 INFO L276 IsEmpty]: Start isEmpty. Operand 10919 states and 14324 transitions. [2022-02-15 00:56:24,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-02-15 00:56:24,783 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:56:24,783 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:56:24,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-02-15 00:56:24,783 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:56:24,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:56:24,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1477891400, now seen corresponding path program 1 times [2022-02-15 00:56:24,784 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:56:24,784 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003839798] [2022-02-15 00:56:24,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:56:24,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:56:26,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:56:27,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:56:27,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:56:27,296 INFO L134 CoverageAnalysis]: Checked inductivity of 1117 backedges. 391 proven. 643 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-02-15 00:56:27,296 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:56:27,296 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003839798] [2022-02-15 00:56:27,296 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003839798] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:56:27,296 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858905989] [2022-02-15 00:56:27,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:56:27,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:56:27,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:56:27,297 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:56:27,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-15 00:56:28,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:56:28,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 1845 conjuncts, 124 conjunts are in the unsatisfiable core [2022-02-15 00:56:28,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:56:28,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:28,978 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-15 00:56:28,978 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-15 00:56:29,146 INFO L353 Elim1Store]: treesize reduction 73, result has 37.1 percent of original size [2022-02-15 00:56:29,146 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 97 treesize of output 120 [2022-02-15 00:56:29,183 INFO L353 Elim1Store]: treesize reduction 30, result has 38.8 percent of original size [2022-02-15 00:56:29,184 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 233 treesize of output 216 [2022-02-15 00:56:29,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:29,197 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 215 treesize of output 155 [2022-02-15 00:56:29,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:29,236 INFO L353 Elim1Store]: treesize reduction 56, result has 49.5 percent of original size [2022-02-15 00:56:29,237 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 99 treesize of output 92 [2022-02-15 00:56:29,246 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-02-15 00:56:29,253 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-02-15 00:56:29,265 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-15 00:56:29,266 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 37 [2022-02-15 00:56:29,320 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-02-15 00:56:29,403 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-02-15 00:56:29,417 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-02-15 00:56:29,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:29,451 INFO L353 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2022-02-15 00:56:29,452 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 1 [2022-02-15 00:56:29,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:29,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:29,464 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-02-15 00:56:29,496 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 18 [2022-02-15 00:56:29,521 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2022-02-15 00:56:29,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:29,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:29,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:29,580 INFO L353 Elim1Store]: treesize reduction 54, result has 45.5 percent of original size [2022-02-15 00:56:29,580 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 107 [2022-02-15 00:56:29,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:29,603 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 7 [2022-02-15 00:56:29,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:29,611 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 7 [2022-02-15 00:56:29,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:29,641 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-02-15 00:56:29,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:29,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:29,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:29,672 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2022-02-15 00:56:29,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:29,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:29,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:29,687 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2022-02-15 00:56:29,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:29,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:29,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:29,759 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-02-15 00:56:29,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:29,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:29,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:29,769 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-02-15 00:56:29,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:29,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:29,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:29,780 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-02-15 00:56:29,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:29,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:29,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:29,817 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-02-15 00:56:31,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:31,191 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 194 treesize of output 187 [2022-02-15 00:56:31,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:31,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:31,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:31,238 INFO L353 Elim1Store]: treesize reduction 224, result has 26.1 percent of original size [2022-02-15 00:56:31,239 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 181 treesize of output 177 [2022-02-15 00:56:31,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:31,250 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 191 treesize of output 160 [2022-02-15 00:56:33,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,019 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 86 [2022-02-15 00:56:33,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,040 INFO L353 Elim1Store]: treesize reduction 183, result has 10.3 percent of original size [2022-02-15 00:56:33,040 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 111 treesize of output 101 [2022-02-15 00:56:33,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,044 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 80 [2022-02-15 00:56:33,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,115 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 80 [2022-02-15 00:56:33,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,146 INFO L353 Elim1Store]: treesize reduction 131, result has 25.6 percent of original size [2022-02-15 00:56:33,147 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 96 treesize of output 112 [2022-02-15 00:56:33,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:33,150 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 85 [2022-02-15 00:56:33,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:34,007 INFO L353 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-02-15 00:56:34,008 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 171 treesize of output 166 [2022-02-15 00:56:34,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:34,049 INFO L353 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-02-15 00:56:34,049 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 148 treesize of output 143 [2022-02-15 00:56:34,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:34,138 INFO L353 Elim1Store]: treesize reduction 82, result has 49.4 percent of original size [2022-02-15 00:56:34,139 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 53 treesize of output 110 [2022-02-15 00:56:46,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:46,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:46,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:46,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:46,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:46,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:46,845 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 235 treesize of output 211 [2022-02-15 00:56:46,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:46,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:46,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:46,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:46,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:46,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:46,891 INFO L353 Elim1Store]: treesize reduction 111, result has 7.5 percent of original size [2022-02-15 00:56:46,892 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 235 treesize of output 232 [2022-02-15 00:56:46,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:46,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:46,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:46,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:46,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:46,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:56:46,938 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 235 treesize of output 211 [2022-02-15 01:00:31,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 01:00:31,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 01:00:31,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 01:00:31,809 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 230 treesize of output 202 [2022-02-15 01:00:31,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 01:00:31,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 01:00:31,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 01:00:31,817 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 230 treesize of output 202 [2022-02-15 01:00:31,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 01:00:31,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 01:00:31,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 01:00:31,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 01:00:31,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 01:00:31,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 01:00:31,840 INFO L353 Elim1Store]: treesize reduction 83, result has 9.8 percent of original size [2022-02-15 01:00:31,840 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 239 treesize of output 235 [2022-02-15 01:00:36,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 01:00:36,982 INFO L353 Elim1Store]: treesize reduction 76, result has 31.5 percent of original size [2022-02-15 01:00:36,983 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 260 treesize of output 209 [2022-02-15 01:00:36,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 01:00:37,016 INFO L353 Elim1Store]: treesize reduction 68, result has 34.0 percent of original size [2022-02-15 01:00:37,017 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 256 treesize of output 217 [2022-02-15 01:00:37,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 01:00:37,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 01:00:37,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 01:00:37,054 INFO L353 Elim1Store]: treesize reduction 258, result has 9.8 percent of original size [2022-02-15 01:00:37,055 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 129 treesize of output 110 [2022-02-15 01:00:37,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 01:00:37,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 01:00:37,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 01:00:37,234 INFO L353 Elim1Store]: treesize reduction 131, result has 25.6 percent of original size [2022-02-15 01:00:37,234 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 87 treesize of output 109 [2022-02-15 01:00:37,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 01:00:37,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 01:00:37,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 01:00:37,241 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 180 treesize of output 152 [2022-02-15 01:00:37,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 01:00:37,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 01:00:37,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 01:00:37,246 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 180 treesize of output 152 [2022-02-15 01:00:38,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 01:00:38,880 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 198 treesize of output 150 [2022-02-15 01:00:38,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 01:00:38,883 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 102 [2022-02-15 01:00:38,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 01:00:38,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 01:00:38,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 01:00:38,904 INFO L353 Elim1Store]: treesize reduction 67, result has 11.8 percent of original size [2022-02-15 01:00:38,904 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 59 [2022-02-15 01:00:44,352 INFO L353 Elim1Store]: treesize reduction 32, result has 25.6 percent of original size [2022-02-15 01:00:44,353 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 40 [2022-02-15 01:00:44,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1117 backedges. 546 proven. 420 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-02-15 01:00:44,391 INFO L328 TraceCheckSpWp]: Computing backward predicates...