/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.08.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-5d317bd [2022-03-18 21:09:36,737 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-18 21:09:36,773 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-18 21:09:36,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-18 21:09:36,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-18 21:09:36,809 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-18 21:09:36,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-18 21:09:36,811 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-18 21:09:36,816 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-18 21:09:36,820 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-18 21:09:36,821 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-18 21:09:36,822 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-18 21:09:36,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-18 21:09:36,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-18 21:09:36,825 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-18 21:09:36,827 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-18 21:09:36,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-18 21:09:36,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-18 21:09:36,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-18 21:09:36,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-18 21:09:36,833 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-18 21:09:36,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-18 21:09:36,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-18 21:09:36,838 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-18 21:09:36,838 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-18 21:09:36,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-18 21:09:36,840 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-18 21:09:36,840 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-18 21:09:36,840 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-18 21:09:36,841 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-18 21:09:36,841 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-18 21:09:36,841 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-18 21:09:36,842 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-18 21:09:36,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-18 21:09:36,843 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-18 21:09:36,843 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-18 21:09:36,843 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-18 21:09:36,844 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-18 21:09:36,844 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-18 21:09:36,844 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-18 21:09:36,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-18 21:09:36,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-18 21:09:36,857 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-18 21:09:36,863 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-18 21:09:36,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-18 21:09:36,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-18 21:09:36,864 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-18 21:09:36,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-18 21:09:36,865 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-18 21:09:36,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-18 21:09:36,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-18 21:09:36,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-18 21:09:36,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-18 21:09:36,865 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-18 21:09:36,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-18 21:09:36,865 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-18 21:09:36,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-18 21:09:36,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-18 21:09:36,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-18 21:09:36,865 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-18 21:09:36,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-18 21:09:36,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 21:09:36,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-18 21:09:36,866 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-18 21:09:36,866 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-18 21:09:36,866 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-18 21:09:37,059 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-18 21:09:37,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-18 21:09:37,082 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-18 21:09:37,083 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-18 21:09:37,085 INFO L275 PluginConnector]: CDTParser initialized [2022-03-18 21:09:37,086 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-2.c [2022-03-18 21:09:37,148 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c9638535/362f6c22d9b9490ab49ff04fcfa60baf/FLAGe9e39f551 [2022-03-18 21:09:37,635 INFO L306 CDTParser]: Found 1 translation units. [2022-03-18 21:09:37,636 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.08.i.cil-2.c [2022-03-18 21:09:37,665 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c9638535/362f6c22d9b9490ab49ff04fcfa60baf/FLAGe9e39f551 [2022-03-18 21:09:38,173 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c9638535/362f6c22d9b9490ab49ff04fcfa60baf [2022-03-18 21:09:38,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-18 21:09:38,176 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-18 21:09:38,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-18 21:09:38,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-18 21:09:38,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-18 21:09:38,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 09:09:38" (1/1) ... [2022-03-18 21:09:38,180 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@114fd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:09:38, skipping insertion in model container [2022-03-18 21:09:38,181 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 09:09:38" (1/1) ... [2022-03-18 21:09:38,185 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-18 21:09:38,211 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-18 21:09:38,456 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.08.i.cil-2.c[74416,74429] [2022-03-18 21:09:38,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 21:09:38,470 INFO L203 MainTranslator]: Completed pre-run [2022-03-18 21:09:38,536 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.08.i.cil-2.c[74416,74429] [2022-03-18 21:09:38,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 21:09:38,548 INFO L208 MainTranslator]: Completed translation [2022-03-18 21:09:38,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:09:38 WrapperNode [2022-03-18 21:09:38,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-18 21:09:38,550 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-18 21:09:38,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-18 21:09:38,550 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-18 21:09:38,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:09:38" (1/1) ... [2022-03-18 21:09:38,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:09:38" (1/1) ... [2022-03-18 21:09:38,577 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:09:38" (1/1) ... [2022-03-18 21:09:38,578 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:09:38" (1/1) ... [2022-03-18 21:09:38,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:09:38" (1/1) ... [2022-03-18 21:09:38,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:09:38" (1/1) ... [2022-03-18 21:09:38,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:09:38" (1/1) ... [2022-03-18 21:09:38,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-18 21:09:38,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-18 21:09:38,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-18 21:09:38,637 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-18 21:09:38,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:09:38" (1/1) ... [2022-03-18 21:09:38,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 21:09:38,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 21:09:38,663 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-18 21:09:38,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-18 21:09:38,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-18 21:09:38,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-18 21:09:38,688 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-18 21:09:38,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-18 21:09:38,689 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-18 21:09:38,689 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-18 21:09:38,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-18 21:09:38,689 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-18 21:09:38,689 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-18 21:09:38,689 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-18 21:09:38,689 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-18 21:09:38,689 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-18 21:09:38,689 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-18 21:09:38,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-18 21:09:38,689 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-18 21:09:38,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-18 21:09:38,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-18 21:09:38,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-18 21:09:38,690 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-18 21:09:38,690 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-18 21:09:38,690 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-18 21:09:38,690 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-18 21:09:38,690 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-18 21:09:38,690 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-18 21:09:38,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-18 21:09:38,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-18 21:09:38,690 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-18 21:09:38,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-18 21:09:38,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-18 21:09:38,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-18 21:09:38,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-18 21:09:38,690 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-18 21:09:38,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-18 21:09:38,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-18 21:09:38,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-18 21:09:38,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-18 21:09:38,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-18 21:09:38,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-18 21:09:38,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-18 21:09:38,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-18 21:09:38,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-18 21:09:38,867 INFO L234 CfgBuilder]: Building ICFG [2022-03-18 21:09:38,868 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-18 21:09:39,561 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-18 21:09:39,974 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-18 21:09:39,974 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-18 21:09:39,986 INFO L275 CfgBuilder]: Performing block encoding [2022-03-18 21:09:39,996 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-18 21:09:39,996 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-18 21:09:39,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 09:09:39 BoogieIcfgContainer [2022-03-18 21:09:39,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-18 21:09:39,999 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-18 21:09:39,999 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-18 21:09:40,000 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-18 21:09:40,002 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 09:09:39" (1/1) ... [2022-03-18 21:09:40,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 18.03 09:09:40 BasicIcfg [2022-03-18 21:09:40,051 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-18 21:09:40,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-18 21:09:40,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-18 21:09:40,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-18 21:09:40,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.03 09:09:38" (1/4) ... [2022-03-18 21:09:40,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eab2826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 09:09:40, skipping insertion in model container [2022-03-18 21:09:40,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:09:38" (2/4) ... [2022-03-18 21:09:40,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eab2826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 09:09:40, skipping insertion in model container [2022-03-18 21:09:40,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 09:09:39" (3/4) ... [2022-03-18 21:09:40,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eab2826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.03 09:09:40, skipping insertion in model container [2022-03-18 21:09:40,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 18.03 09:09:40" (4/4) ... [2022-03-18 21:09:40,061 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.08.i.cil-2.cJordan [2022-03-18 21:09:40,065 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-18 21:09:40,065 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-18 21:09:40,110 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-18 21:09:40,117 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-18 21:09:40,117 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-18 21:09:40,141 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-18 21:09:40,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-18 21:09:40,151 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:40,152 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:09:40,152 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:40,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:40,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1558892099, now seen corresponding path program 1 times [2022-03-18 21:09:40,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:40,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532453290] [2022-03-18 21:09:40,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:40,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:40,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:40,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:40,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:40,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:09:40,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:40,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532453290] [2022-03-18 21:09:40,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532453290] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:40,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:40,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:09:40,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079990822] [2022-03-18 21:09:40,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:40,665 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:09:40,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:40,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:09:40,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:09:40,693 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 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:43,783 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:44,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:44,495 INFO L93 Difference]: Finished difference Result 286 states and 475 transitions. [2022-03-18 21:09:44,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:09:44,497 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-03-18 21:09:44,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:44,512 INFO L225 Difference]: With dead ends: 286 [2022-03-18 21:09:44,512 INFO L226 Difference]: Without dead ends: 260 [2022-03-18 21:09:44,513 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:09:44,517 INFO L912 BasicCegarLoop]: 158 mSDtfsCounter, 152 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:44,521 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 463 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-18 21:09:44,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-03-18 21:09:44,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 182. [2022-03-18 21:09:44,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 177 states have (on average 1.6045197740112995) internal successors, (284), 177 states have internal predecessors, (284), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:44,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 288 transitions. [2022-03-18 21:09:44,559 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 288 transitions. Word has length 49 [2022-03-18 21:09:44,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:44,559 INFO L478 AbstractCegarLoop]: Abstraction has 182 states and 288 transitions. [2022-03-18 21:09:44,559 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:44,559 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 288 transitions. [2022-03-18 21:09:44,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-18 21:09:44,560 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:44,561 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:09:44,561 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-18 21:09:44,561 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:44,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:44,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1110443281, now seen corresponding path program 1 times [2022-03-18 21:09:44,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:44,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622459621] [2022-03-18 21:09:44,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:44,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:44,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:44,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:44,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:44,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:09:44,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:44,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622459621] [2022-03-18 21:09:44,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622459621] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:44,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:44,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:09:44,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719511835] [2022-03-18 21:09:44,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:44,686 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:09:44,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:44,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:09:44,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:09:44,691 INFO L87 Difference]: Start difference. First operand 182 states and 288 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:48,319 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:49,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:49,242 INFO L93 Difference]: Finished difference Result 210 states and 328 transitions. [2022-03-18 21:09:49,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:09:49,243 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-03-18 21:09:49,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:49,244 INFO L225 Difference]: With dead ends: 210 [2022-03-18 21:09:49,244 INFO L226 Difference]: Without dead ends: 210 [2022-03-18 21:09:49,244 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:09:49,245 INFO L912 BasicCegarLoop]: 186 mSDtfsCounter, 22 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:49,245 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 481 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 365 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-03-18 21:09:49,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-03-18 21:09:49,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 193. [2022-03-18 21:09:49,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.6117021276595744) internal successors, (303), 188 states have internal predecessors, (303), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:49,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 307 transitions. [2022-03-18 21:09:49,253 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 307 transitions. Word has length 50 [2022-03-18 21:09:49,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:49,253 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 307 transitions. [2022-03-18 21:09:49,253 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:49,254 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 307 transitions. [2022-03-18 21:09:49,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-18 21:09:49,255 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:49,255 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:09:49,255 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-18 21:09:49,255 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:49,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:49,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1078266722, now seen corresponding path program 1 times [2022-03-18 21:09:49,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:49,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882854630] [2022-03-18 21:09:49,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:49,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:49,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:49,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:49,386 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:09:49,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:49,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882854630] [2022-03-18 21:09:49,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882854630] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:49,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:49,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:09:49,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112664165] [2022-03-18 21:09:49,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:49,388 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:09:49,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:49,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:09:49,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:09:49,389 INFO L87 Difference]: Start difference. First operand 193 states and 307 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:52,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:54,017 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 [] [2022-03-18 21:09:54,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:54,450 INFO L93 Difference]: Finished difference Result 210 states and 327 transitions. [2022-03-18 21:09:54,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:09:54,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-03-18 21:09:54,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:54,452 INFO L225 Difference]: With dead ends: 210 [2022-03-18 21:09:54,452 INFO L226 Difference]: Without dead ends: 210 [2022-03-18 21:09:54,452 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:09:54,453 INFO L912 BasicCegarLoop]: 187 mSDtfsCounter, 24 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:54,453 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 483 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 363 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-18 21:09:54,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-03-18 21:09:54,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 193. [2022-03-18 21:09:54,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.6063829787234043) internal successors, (302), 188 states have internal predecessors, (302), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:54,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 306 transitions. [2022-03-18 21:09:54,460 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 306 transitions. Word has length 63 [2022-03-18 21:09:54,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:54,460 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 306 transitions. [2022-03-18 21:09:54,460 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:54,461 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 306 transitions. [2022-03-18 21:09:54,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-18 21:09:54,462 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:54,462 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:09:54,463 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-18 21:09:54,463 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:54,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:54,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1195451989, now seen corresponding path program 1 times [2022-03-18 21:09:54,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:54,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617489719] [2022-03-18 21:09:54,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:54,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:54,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:54,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:54,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:54,625 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:09:54,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:54,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617489719] [2022-03-18 21:09:54,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617489719] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:54,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:54,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:09:54,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819186871] [2022-03-18 21:09:54,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:54,628 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:09:54,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:54,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:09:54,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:09:54,629 INFO L87 Difference]: Start difference. First operand 193 states and 306 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:55,840 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:57,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:59,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:59,816 INFO L93 Difference]: Finished difference Result 209 states and 325 transitions. [2022-03-18 21:09:59,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:09:59,816 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-18 21:09:59,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:59,819 INFO L225 Difference]: With dead ends: 209 [2022-03-18 21:09:59,819 INFO L226 Difference]: Without dead ends: 209 [2022-03-18 21:09:59,819 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:09:59,821 INFO L912 BasicCegarLoop]: 188 mSDtfsCounter, 28 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s 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, 5.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:59,822 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 485 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-18 21:09:59,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-03-18 21:09:59,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 193. [2022-03-18 21:09:59,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.601063829787234) internal successors, (301), 188 states have internal predecessors, (301), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:59,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 305 transitions. [2022-03-18 21:09:59,838 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 305 transitions. Word has length 64 [2022-03-18 21:09:59,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:59,839 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 305 transitions. [2022-03-18 21:09:59,839 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:59,839 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 305 transitions. [2022-03-18 21:09:59,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-18 21:09:59,840 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:59,840 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:09:59,840 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-18 21:09:59,840 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:59,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:59,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1745068491, now seen corresponding path program 1 times [2022-03-18 21:09:59,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:59,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380995066] [2022-03-18 21:09:59,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:59,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:59,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:59,970 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:09:59,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:59,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380995066] [2022-03-18 21:09:59,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380995066] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:59,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:59,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:09:59,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969323574] [2022-03-18 21:09:59,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:59,972 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:09:59,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:59,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:09:59,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:09:59,972 INFO L87 Difference]: Start difference. First operand 193 states and 305 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:02,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:10:02,532 INFO L93 Difference]: Finished difference Result 310 states and 484 transitions. [2022-03-18 21:10:02,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:10:02,532 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-18 21:10:02,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:10:02,533 INFO L225 Difference]: With dead ends: 310 [2022-03-18 21:10:02,533 INFO L226 Difference]: Without dead ends: 310 [2022-03-18 21:10:02,533 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:10:02,534 INFO L912 BasicCegarLoop]: 118 mSDtfsCounter, 147 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:10:02,534 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 344 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-18 21:10:02,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-03-18 21:10:02,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 205. [2022-03-18 21:10:02,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 200 states have (on average 1.585) internal successors, (317), 200 states have internal predecessors, (317), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:02,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 321 transitions. [2022-03-18 21:10:02,539 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 321 transitions. Word has length 64 [2022-03-18 21:10:02,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:10:02,539 INFO L478 AbstractCegarLoop]: Abstraction has 205 states and 321 transitions. [2022-03-18 21:10:02,539 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:02,539 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 321 transitions. [2022-03-18 21:10:02,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-18 21:10:02,540 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:10:02,540 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:10:02,540 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-18 21:10:02,540 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:10:02,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:10:02,540 INFO L85 PathProgramCache]: Analyzing trace with hash 687906315, now seen corresponding path program 1 times [2022-03-18 21:10:02,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:10:02,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131384898] [2022-03-18 21:10:02,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:10:02,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:10:02,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:02,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:10:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:02,641 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:10:02,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:10:02,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131384898] [2022-03-18 21:10:02,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131384898] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:10:02,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:10:02,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:10:02,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068291432] [2022-03-18 21:10:02,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:10:02,642 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:10:02,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:10:02,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:10:02,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:10:02,645 INFO L87 Difference]: Start difference. First operand 205 states and 321 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:05,401 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:07,867 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:08,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:10:08,197 INFO L93 Difference]: Finished difference Result 219 states and 338 transitions. [2022-03-18 21:10:08,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:10:08,197 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-18 21:10:08,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:10:08,198 INFO L225 Difference]: With dead ends: 219 [2022-03-18 21:10:08,198 INFO L226 Difference]: Without dead ends: 219 [2022-03-18 21:10:08,199 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:10:08,199 INFO L912 BasicCegarLoop]: 190 mSDtfsCounter, 20 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:10:08,199 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 489 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 357 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-18 21:10:08,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-03-18 21:10:08,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 205. [2022-03-18 21:10:08,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 200 states have (on average 1.58) internal successors, (316), 200 states have internal predecessors, (316), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:08,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 320 transitions. [2022-03-18 21:10:08,203 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 320 transitions. Word has length 64 [2022-03-18 21:10:08,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:10:08,203 INFO L478 AbstractCegarLoop]: Abstraction has 205 states and 320 transitions. [2022-03-18 21:10:08,203 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:08,203 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 320 transitions. [2022-03-18 21:10:08,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-18 21:10:08,204 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:10:08,204 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:10:08,204 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-18 21:10:08,204 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:10:08,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:10:08,204 INFO L85 PathProgramCache]: Analyzing trace with hash -621355733, now seen corresponding path program 1 times [2022-03-18 21:10:08,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:10:08,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945738708] [2022-03-18 21:10:08,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:10:08,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:10:08,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:08,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:10:08,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:08,338 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:10:08,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:10:08,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945738708] [2022-03-18 21:10:08,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945738708] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:10:08,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:10:08,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:10:08,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690863254] [2022-03-18 21:10:08,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:10:08,339 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:10:08,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:10:08,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:10:08,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:10:08,339 INFO L87 Difference]: Start difference. First operand 205 states and 320 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:09,684 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:11,342 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:13,356 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:14,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:10:14,001 INFO L93 Difference]: Finished difference Result 309 states and 479 transitions. [2022-03-18 21:10:14,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:10:14,001 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-18 21:10:14,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:10:14,003 INFO L225 Difference]: With dead ends: 309 [2022-03-18 21:10:14,004 INFO L226 Difference]: Without dead ends: 309 [2022-03-18 21:10:14,004 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:10:14,005 INFO L912 BasicCegarLoop]: 119 mSDtfsCounter, 140 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:10:14,008 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 346 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 475 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-18 21:10:14,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-03-18 21:10:14,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 211. [2022-03-18 21:10:14,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 206 states have (on average 1.5776699029126213) internal successors, (325), 206 states have internal predecessors, (325), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:14,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 329 transitions. [2022-03-18 21:10:14,018 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 329 transitions. Word has length 64 [2022-03-18 21:10:14,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:10:14,019 INFO L478 AbstractCegarLoop]: Abstraction has 211 states and 329 transitions. [2022-03-18 21:10:14,019 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:14,019 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 329 transitions. [2022-03-18 21:10:14,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-18 21:10:14,020 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:10:14,020 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:10:14,020 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-18 21:10:14,020 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:10:14,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:10:14,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1526798082, now seen corresponding path program 1 times [2022-03-18 21:10:14,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:10:14,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446673291] [2022-03-18 21:10:14,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:10:14,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:10:14,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:14,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:10:14,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:14,112 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:10:14,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:10:14,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446673291] [2022-03-18 21:10:14,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446673291] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:10:14,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:10:14,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:10:14,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231025785] [2022-03-18 21:10:14,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:10:14,113 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:10:14,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:10:14,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:10:14,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:10:14,114 INFO L87 Difference]: Start difference. First operand 211 states and 329 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:15,634 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:16,667 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:18,117 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:19,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:10:19,319 INFO L93 Difference]: Finished difference Result 224 states and 345 transitions. [2022-03-18 21:10:19,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:10:19,319 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-18 21:10:19,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:10:19,321 INFO L225 Difference]: With dead ends: 224 [2022-03-18 21:10:19,321 INFO L226 Difference]: Without dead ends: 224 [2022-03-18 21:10:19,321 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:10:19,321 INFO L912 BasicCegarLoop]: 191 mSDtfsCounter, 22 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:10:19,322 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 491 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-03-18 21:10:19,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-03-18 21:10:19,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 211. [2022-03-18 21:10:19,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 206 states have (on average 1.5728155339805825) internal successors, (324), 206 states have internal predecessors, (324), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:19,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 328 transitions. [2022-03-18 21:10:19,325 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 328 transitions. Word has length 65 [2022-03-18 21:10:19,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:10:19,325 INFO L478 AbstractCegarLoop]: Abstraction has 211 states and 328 transitions. [2022-03-18 21:10:19,326 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:19,326 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 328 transitions. [2022-03-18 21:10:19,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-18 21:10:19,326 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:10:19,326 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:10:19,326 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-18 21:10:19,326 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:10:19,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:10:19,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1650794065, now seen corresponding path program 1 times [2022-03-18 21:10:19,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:10:19,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779895099] [2022-03-18 21:10:19,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:10:19,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:10:19,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:19,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:10:19,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:19,412 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:10:19,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:10:19,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779895099] [2022-03-18 21:10:19,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779895099] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:10:19,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:10:19,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:10:19,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60379166] [2022-03-18 21:10:19,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:10:19,415 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:10:19,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:10:19,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:10:19,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:10:19,416 INFO L87 Difference]: Start difference. First operand 211 states and 328 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:22,114 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:24,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:24,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:10:24,592 INFO L93 Difference]: Finished difference Result 309 states and 475 transitions. [2022-03-18 21:10:24,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:10:24,592 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-18 21:10:24,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:10:24,593 INFO L225 Difference]: With dead ends: 309 [2022-03-18 21:10:24,593 INFO L226 Difference]: Without dead ends: 309 [2022-03-18 21:10:24,593 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:10:24,594 INFO L912 BasicCegarLoop]: 119 mSDtfsCounter, 143 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:10:24,594 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 346 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 475 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-18 21:10:24,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-03-18 21:10:24,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 211. [2022-03-18 21:10:24,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 206 states have (on average 1.558252427184466) internal successors, (321), 206 states have internal predecessors, (321), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:24,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 325 transitions. [2022-03-18 21:10:24,599 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 325 transitions. Word has length 66 [2022-03-18 21:10:24,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:10:24,599 INFO L478 AbstractCegarLoop]: Abstraction has 211 states and 325 transitions. [2022-03-18 21:10:24,599 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:24,599 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 325 transitions. [2022-03-18 21:10:24,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-18 21:10:24,599 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:10:24,600 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:10:24,600 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-18 21:10:24,600 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:10:24,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:10:24,600 INFO L85 PathProgramCache]: Analyzing trace with hash 245948261, now seen corresponding path program 1 times [2022-03-18 21:10:24,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:10:24,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860263873] [2022-03-18 21:10:24,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:10:24,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:10:24,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:24,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:10:24,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:24,689 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:10:24,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:10:24,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860263873] [2022-03-18 21:10:24,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860263873] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:10:24,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:10:24,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:10:24,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152091914] [2022-03-18 21:10:24,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:10:24,690 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:10:24,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:10:24,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:10:24,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:10:24,690 INFO L87 Difference]: Start difference. First operand 211 states and 325 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:27,653 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:28,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:10:28,690 INFO L93 Difference]: Finished difference Result 309 states and 472 transitions. [2022-03-18 21:10:28,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:10:28,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-03-18 21:10:28,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:10:28,691 INFO L225 Difference]: With dead ends: 309 [2022-03-18 21:10:28,691 INFO L226 Difference]: Without dead ends: 309 [2022-03-18 21:10:28,691 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:10:28,692 INFO L912 BasicCegarLoop]: 119 mSDtfsCounter, 141 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:10:28,692 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 346 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-18 21:10:28,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-03-18 21:10:28,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 211. [2022-03-18 21:10:28,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 206 states have (on average 1.5436893203883495) internal successors, (318), 206 states have internal predecessors, (318), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:28,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 322 transitions. [2022-03-18 21:10:28,697 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 322 transitions. Word has length 67 [2022-03-18 21:10:28,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:10:28,697 INFO L478 AbstractCegarLoop]: Abstraction has 211 states and 322 transitions. [2022-03-18 21:10:28,697 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:28,697 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 322 transitions. [2022-03-18 21:10:28,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-18 21:10:28,697 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:10:28,697 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:10:28,698 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-18 21:10:28,698 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:10:28,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:10:28,698 INFO L85 PathProgramCache]: Analyzing trace with hash -96502252, now seen corresponding path program 1 times [2022-03-18 21:10:28,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:10:28,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583026478] [2022-03-18 21:10:28,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:10:28,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:10:28,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:28,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:10:28,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:28,789 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:10:28,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:10:28,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583026478] [2022-03-18 21:10:28,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583026478] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:10:28,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:10:28,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:10:28,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746768230] [2022-03-18 21:10:28,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:10:28,790 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:10:28,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:10:28,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:10:28,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:10:28,790 INFO L87 Difference]: Start difference. First operand 211 states and 322 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:31,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:32,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:10:32,619 INFO L93 Difference]: Finished difference Result 253 states and 382 transitions. [2022-03-18 21:10:32,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:10:32,620 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-03-18 21:10:32,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:10:32,621 INFO L225 Difference]: With dead ends: 253 [2022-03-18 21:10:32,621 INFO L226 Difference]: Without dead ends: 253 [2022-03-18 21:10:32,621 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:10:32,621 INFO L912 BasicCegarLoop]: 195 mSDtfsCounter, 30 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 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, 3.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:10:32,622 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 505 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 395 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-03-18 21:10:32,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-03-18 21:10:32,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 233. [2022-03-18 21:10:32,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 228 states have (on average 1.543859649122807) internal successors, (352), 228 states have internal predecessors, (352), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:32,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 356 transitions. [2022-03-18 21:10:32,625 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 356 transitions. Word has length 67 [2022-03-18 21:10:32,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:10:32,626 INFO L478 AbstractCegarLoop]: Abstraction has 233 states and 356 transitions. [2022-03-18 21:10:32,626 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:32,626 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 356 transitions. [2022-03-18 21:10:32,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-03-18 21:10:32,626 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:10:32,626 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:10:32,626 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-18 21:10:32,627 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:10:32,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:10:32,627 INFO L85 PathProgramCache]: Analyzing trace with hash -763654337, now seen corresponding path program 1 times [2022-03-18 21:10:32,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:10:32,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785998902] [2022-03-18 21:10:32,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:10:32,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:10:32,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:32,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:10:32,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:32,747 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:10:32,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:10:32,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785998902] [2022-03-18 21:10:32,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785998902] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:10:32,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:10:32,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:10:32,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823202281] [2022-03-18 21:10:32,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:10:32,748 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:10:32,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:10:32,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:10:32,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:10:32,749 INFO L87 Difference]: Start difference. First operand 233 states and 356 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:34,879 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:36,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:38,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:10:38,101 INFO L93 Difference]: Finished difference Result 370 states and 571 transitions. [2022-03-18 21:10:38,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:10:38,102 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 80 [2022-03-18 21:10:38,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:10:38,103 INFO L225 Difference]: With dead ends: 370 [2022-03-18 21:10:38,103 INFO L226 Difference]: Without dead ends: 370 [2022-03-18 21:10:38,103 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:10:38,103 INFO L912 BasicCegarLoop]: 235 mSDtfsCounter, 140 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:10:38,104 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 578 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 594 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-18 21:10:38,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-03-18 21:10:38,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 249. [2022-03-18 21:10:38,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 244 states have (on average 1.528688524590164) internal successors, (373), 244 states have internal predecessors, (373), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:38,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 377 transitions. [2022-03-18 21:10:38,108 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 377 transitions. Word has length 80 [2022-03-18 21:10:38,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:10:38,108 INFO L478 AbstractCegarLoop]: Abstraction has 249 states and 377 transitions. [2022-03-18 21:10:38,108 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:38,108 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 377 transitions. [2022-03-18 21:10:38,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-03-18 21:10:38,109 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:10:38,109 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:10:38,109 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-18 21:10:38,109 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:10:38,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:10:38,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1834537326, now seen corresponding path program 1 times [2022-03-18 21:10:38,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:10:38,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278552163] [2022-03-18 21:10:38,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:10:38,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:10:38,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:38,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:10:38,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:38,215 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-18 21:10:38,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:10:38,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278552163] [2022-03-18 21:10:38,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278552163] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:10:38,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:10:38,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:10:38,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887640956] [2022-03-18 21:10:38,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:10:38,216 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:10:38,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:10:38,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:10:38,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:10:38,217 INFO L87 Difference]: Start difference. First operand 249 states and 377 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) [2022-03-18 21:10:40,309 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 [] [2022-03-18 21:10:41,480 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:41,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:10:41,832 INFO L93 Difference]: Finished difference Result 262 states and 392 transitions. [2022-03-18 21:10:41,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:10:41,832 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 81 [2022-03-18 21:10:41,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:10:41,833 INFO L225 Difference]: With dead ends: 262 [2022-03-18 21:10:41,833 INFO L226 Difference]: Without dead ends: 262 [2022-03-18 21:10:41,833 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:10:41,834 INFO L912 BasicCegarLoop]: 229 mSDtfsCounter, 19 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:10:41,834 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 572 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-18 21:10:41,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-03-18 21:10:41,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 249. [2022-03-18 21:10:41,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 244 states have (on average 1.5245901639344261) internal successors, (372), 244 states have internal predecessors, (372), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:41,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 376 transitions. [2022-03-18 21:10:41,838 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 376 transitions. Word has length 81 [2022-03-18 21:10:41,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:10:41,838 INFO L478 AbstractCegarLoop]: Abstraction has 249 states and 376 transitions. [2022-03-18 21:10:41,838 INFO L479 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) [2022-03-18 21:10:41,838 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 376 transitions. [2022-03-18 21:10:41,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-03-18 21:10:41,839 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:10:41,839 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:10:41,839 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-18 21:10:41,839 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:10:41,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:10:41,840 INFO L85 PathProgramCache]: Analyzing trace with hash -577071666, now seen corresponding path program 1 times [2022-03-18 21:10:41,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:10:41,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562462493] [2022-03-18 21:10:41,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:10:41,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:10:41,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:41,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:10:41,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:41,922 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:10:41,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:10:41,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562462493] [2022-03-18 21:10:41,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562462493] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:10:41,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:10:41,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:10:41,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777805769] [2022-03-18 21:10:41,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:10:41,923 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:10:41,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:10:41,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:10:41,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:10:41,923 INFO L87 Difference]: Start difference. First operand 249 states and 376 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:44,338 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:45,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:46,954 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:47,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:10:47,420 INFO L93 Difference]: Finished difference Result 347 states and 523 transitions. [2022-03-18 21:10:47,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:10:47,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2022-03-18 21:10:47,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:10:47,422 INFO L225 Difference]: With dead ends: 347 [2022-03-18 21:10:47,422 INFO L226 Difference]: Without dead ends: 347 [2022-03-18 21:10:47,422 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:10:47,423 INFO L912 BasicCegarLoop]: 119 mSDtfsCounter, 139 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:10:47,423 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 346 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 475 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-18 21:10:47,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-03-18 21:10:47,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 249. [2022-03-18 21:10:47,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 244 states have (on average 1.5122950819672132) internal successors, (369), 244 states have internal predecessors, (369), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:47,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 373 transitions. [2022-03-18 21:10:47,428 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 373 transitions. Word has length 81 [2022-03-18 21:10:47,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:10:47,428 INFO L478 AbstractCegarLoop]: Abstraction has 249 states and 373 transitions. [2022-03-18 21:10:47,428 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:47,428 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 373 transitions. [2022-03-18 21:10:47,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-18 21:10:47,429 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:10:47,429 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:10:47,429 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-18 21:10:47,429 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:10:47,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:10:47,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1618514662, now seen corresponding path program 1 times [2022-03-18 21:10:47,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:10:47,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525099433] [2022-03-18 21:10:47,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:10:47,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:10:47,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:47,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:10:47,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:47,534 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-18 21:10:47,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:10:47,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525099433] [2022-03-18 21:10:47,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525099433] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:10:47,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:10:47,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-18 21:10:47,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865248027] [2022-03-18 21:10:47,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:10:47,534 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-18 21:10:47,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:10:47,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-18 21:10:47,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:10:47,535 INFO L87 Difference]: Start difference. First operand 249 states and 373 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:50,930 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:52,055 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:54,006 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 [] [2022-03-18 21:10:54,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:10:54,352 INFO L93 Difference]: Finished difference Result 258 states and 384 transitions. [2022-03-18 21:10:54,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-18 21:10:54,353 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-03-18 21:10:54,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:10:54,354 INFO L225 Difference]: With dead ends: 258 [2022-03-18 21:10:54,354 INFO L226 Difference]: Without dead ends: 258 [2022-03-18 21:10:54,354 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-18 21:10:54,354 INFO L912 BasicCegarLoop]: 203 mSDtfsCounter, 3 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:10:54,354 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 633 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-03-18 21:10:54,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-03-18 21:10:54,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2022-03-18 21:10:54,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 253 states have (on average 1.5019762845849802) internal successors, (380), 253 states have internal predecessors, (380), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:54,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 384 transitions. [2022-03-18 21:10:54,358 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 384 transitions. Word has length 82 [2022-03-18 21:10:54,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:10:54,358 INFO L478 AbstractCegarLoop]: Abstraction has 258 states and 384 transitions. [2022-03-18 21:10:54,358 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:54,358 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 384 transitions. [2022-03-18 21:10:54,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-18 21:10:54,359 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:10:54,359 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:10:54,359 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-18 21:10:54,359 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:10:54,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:10:54,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1558375689, now seen corresponding path program 1 times [2022-03-18 21:10:54,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:10:54,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62782878] [2022-03-18 21:10:54,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:10:54,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:10:54,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:54,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:10:54,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:54,444 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:10:54,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:10:54,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62782878] [2022-03-18 21:10:54,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62782878] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:10:54,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:10:54,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:10:54,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462039112] [2022-03-18 21:10:54,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:10:54,445 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:10:54,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:10:54,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:10:54,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:10:54,445 INFO L87 Difference]: Start difference. First operand 258 states and 384 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:55,704 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:57,723 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:59,089 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:00,642 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:01,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:01,099 INFO L93 Difference]: Finished difference Result 355 states and 528 transitions. [2022-03-18 21:11:01,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:01,100 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-03-18 21:11:01,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:01,101 INFO L225 Difference]: With dead ends: 355 [2022-03-18 21:11:01,101 INFO L226 Difference]: Without dead ends: 355 [2022-03-18 21:11:01,101 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:11:01,102 INFO L912 BasicCegarLoop]: 120 mSDtfsCounter, 141 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:01,102 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 348 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 473 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-03-18 21:11:01,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-03-18 21:11:01,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 258. [2022-03-18 21:11:01,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 253 states have (on average 1.4861660079051384) internal successors, (376), 253 states have internal predecessors, (376), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:01,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 380 transitions. [2022-03-18 21:11:01,106 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 380 transitions. Word has length 83 [2022-03-18 21:11:01,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:01,106 INFO L478 AbstractCegarLoop]: Abstraction has 258 states and 380 transitions. [2022-03-18 21:11:01,106 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:01,106 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 380 transitions. [2022-03-18 21:11:01,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-03-18 21:11:01,106 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:01,107 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:11:01,107 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-18 21:11:01,107 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:01,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:01,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1133478069, now seen corresponding path program 1 times [2022-03-18 21:11:01,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:01,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068419499] [2022-03-18 21:11:01,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:01,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:01,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:01,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:01,219 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 21:11:01,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:01,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068419499] [2022-03-18 21:11:01,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068419499] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:01,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:01,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:01,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409984156] [2022-03-18 21:11:01,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:01,220 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:01,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:01,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:01,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:01,221 INFO L87 Difference]: Start difference. First operand 258 states and 380 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) [2022-03-18 21:11:03,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:03,920 INFO L93 Difference]: Finished difference Result 354 states and 522 transitions. [2022-03-18 21:11:03,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:03,920 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 [2022-03-18 21:11:03,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:03,921 INFO L225 Difference]: With dead ends: 354 [2022-03-18 21:11:03,921 INFO L226 Difference]: Without dead ends: 354 [2022-03-18 21:11:03,922 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:11:03,922 INFO L912 BasicCegarLoop]: 190 mSDtfsCounter, 78 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:03,922 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 495 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-18 21:11:03,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-03-18 21:11:03,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 300. [2022-03-18 21:11:03,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 295 states have (on average 1.505084745762712) internal successors, (444), 295 states have internal predecessors, (444), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:03,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 448 transitions. [2022-03-18 21:11:03,926 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 448 transitions. Word has length 89 [2022-03-18 21:11:03,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:03,926 INFO L478 AbstractCegarLoop]: Abstraction has 300 states and 448 transitions. [2022-03-18 21:11:03,926 INFO L479 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) [2022-03-18 21:11:03,927 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 448 transitions. [2022-03-18 21:11:03,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-03-18 21:11:03,927 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:03,927 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:11:03,927 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-18 21:11:03,927 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:03,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:03,928 INFO L85 PathProgramCache]: Analyzing trace with hash -802182218, now seen corresponding path program 1 times [2022-03-18 21:11:03,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:03,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279611162] [2022-03-18 21:11:03,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:03,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:04,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:04,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:04,013 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 21:11:04,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:04,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279611162] [2022-03-18 21:11:04,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279611162] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:04,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:04,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:04,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786675675] [2022-03-18 21:11:04,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:04,014 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:04,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:04,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:04,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:04,014 INFO L87 Difference]: Start difference. First operand 300 states and 448 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) [2022-03-18 21:11:06,896 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:08,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:08,440 INFO L93 Difference]: Finished difference Result 397 states and 595 transitions. [2022-03-18 21:11:08,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:08,440 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 [2022-03-18 21:11:08,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:08,442 INFO L225 Difference]: With dead ends: 397 [2022-03-18 21:11:08,442 INFO L226 Difference]: Without dead ends: 397 [2022-03-18 21:11:08,442 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:11:08,442 INFO L912 BasicCegarLoop]: 129 mSDtfsCounter, 113 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:08,442 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 366 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-03-18 21:11:08,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2022-03-18 21:11:08,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 280. [2022-03-18 21:11:08,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 275 states have (on average 1.5236363636363637) internal successors, (419), 275 states have internal predecessors, (419), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:08,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 423 transitions. [2022-03-18 21:11:08,446 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 423 transitions. Word has length 89 [2022-03-18 21:11:08,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:08,447 INFO L478 AbstractCegarLoop]: Abstraction has 280 states and 423 transitions. [2022-03-18 21:11:08,447 INFO L479 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) [2022-03-18 21:11:08,447 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 423 transitions. [2022-03-18 21:11:08,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-18 21:11:08,447 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:08,447 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:11:08,448 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-18 21:11:08,448 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:08,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:08,448 INFO L85 PathProgramCache]: Analyzing trace with hash -442897010, now seen corresponding path program 1 times [2022-03-18 21:11:08,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:08,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508413727] [2022-03-18 21:11:08,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:08,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:08,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:08,588 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 21:11:08,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:08,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508413727] [2022-03-18 21:11:08,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508413727] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:08,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:08,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:08,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814690241] [2022-03-18 21:11:08,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:08,589 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:08,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:08,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:08,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:08,590 INFO L87 Difference]: Start difference. First operand 280 states and 423 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:10,603 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:11,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:11,014 INFO L93 Difference]: Finished difference Result 373 states and 560 transitions. [2022-03-18 21:11:11,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:11,014 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-03-18 21:11:11,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:11,015 INFO L225 Difference]: With dead ends: 373 [2022-03-18 21:11:11,015 INFO L226 Difference]: Without dead ends: 373 [2022-03-18 21:11:11,015 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:11:11,016 INFO L912 BasicCegarLoop]: 193 mSDtfsCounter, 84 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:11,016 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 501 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 515 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:11:11,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-03-18 21:11:11,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 314. [2022-03-18 21:11:11,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 309 states have (on average 1.5275080906148868) internal successors, (472), 309 states have internal predecessors, (472), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:11,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 476 transitions. [2022-03-18 21:11:11,020 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 476 transitions. Word has length 117 [2022-03-18 21:11:11,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:11,021 INFO L478 AbstractCegarLoop]: Abstraction has 314 states and 476 transitions. [2022-03-18 21:11:11,021 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:11,021 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 476 transitions. [2022-03-18 21:11:11,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-18 21:11:11,021 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:11,022 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:11:11,022 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-18 21:11:11,022 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:11,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:11,022 INFO L85 PathProgramCache]: Analyzing trace with hash -689210097, now seen corresponding path program 1 times [2022-03-18 21:11:11,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:11,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49678775] [2022-03-18 21:11:11,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:11,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:11,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:11,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:11,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:11,119 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-18 21:11:11,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:11,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49678775] [2022-03-18 21:11:11,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49678775] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:11,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:11,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:11,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072055326] [2022-03-18 21:11:11,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:11,120 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:11,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:11,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:11,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:11,120 INFO L87 Difference]: Start difference. First operand 314 states and 476 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:12,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:14,336 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:16,358 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:17,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:17,421 INFO L93 Difference]: Finished difference Result 359 states and 538 transitions. [2022-03-18 21:11:17,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:17,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-03-18 21:11:17,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:17,422 INFO L225 Difference]: With dead ends: 359 [2022-03-18 21:11:17,422 INFO L226 Difference]: Without dead ends: 359 [2022-03-18 21:11:17,423 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:11:17,423 INFO L912 BasicCegarLoop]: 241 mSDtfsCounter, 32 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:17,423 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 595 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 452 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-03-18 21:11:17,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2022-03-18 21:11:17,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 338. [2022-03-18 21:11:17,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 333 states have (on average 1.5225225225225225) internal successors, (507), 333 states have internal predecessors, (507), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:17,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 511 transitions. [2022-03-18 21:11:17,427 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 511 transitions. Word has length 117 [2022-03-18 21:11:17,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:17,427 INFO L478 AbstractCegarLoop]: Abstraction has 338 states and 511 transitions. [2022-03-18 21:11:17,427 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:17,428 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 511 transitions. [2022-03-18 21:11:17,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-18 21:11:17,428 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:17,428 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:11:17,429 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-18 21:11:17,429 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:17,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:17,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1156244222, now seen corresponding path program 1 times [2022-03-18 21:11:17,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:17,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639334543] [2022-03-18 21:11:17,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:17,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:17,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:17,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:17,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:17,558 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-18 21:11:17,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:17,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639334543] [2022-03-18 21:11:17,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639334543] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:17,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:17,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:17,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681800535] [2022-03-18 21:11:17,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:17,558 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:17,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:17,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:17,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:17,560 INFO L87 Difference]: Start difference. First operand 338 states and 511 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:19,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:19,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:19,897 INFO L93 Difference]: Finished difference Result 345 states and 520 transitions. [2022-03-18 21:11:19,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:19,897 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 122 [2022-03-18 21:11:19,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:19,898 INFO L225 Difference]: With dead ends: 345 [2022-03-18 21:11:19,898 INFO L226 Difference]: Without dead ends: 345 [2022-03-18 21:11:19,899 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:11:19,899 INFO L912 BasicCegarLoop]: 206 mSDtfsCounter, 30 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:19,899 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 525 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 371 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 21:11:19,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2022-03-18 21:11:19,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 338. [2022-03-18 21:11:19,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 333 states have (on average 1.5195195195195195) internal successors, (506), 333 states have internal predecessors, (506), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:19,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 510 transitions. [2022-03-18 21:11:19,903 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 510 transitions. Word has length 122 [2022-03-18 21:11:19,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:19,904 INFO L478 AbstractCegarLoop]: Abstraction has 338 states and 510 transitions. [2022-03-18 21:11:19,904 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:19,904 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 510 transitions. [2022-03-18 21:11:19,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-18 21:11:19,905 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:19,905 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:11:19,905 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-18 21:11:19,905 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:19,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:19,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1770598714, now seen corresponding path program 1 times [2022-03-18 21:11:19,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:19,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18386152] [2022-03-18 21:11:19,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:19,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:19,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:19,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:19,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:19,997 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 21:11:19,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:19,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18386152] [2022-03-18 21:11:19,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18386152] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:19,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:19,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:19,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431595086] [2022-03-18 21:11:19,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:19,997 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:19,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:19,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:19,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:19,998 INFO L87 Difference]: Start difference. First operand 338 states and 510 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:21,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:23,133 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:25,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:26,344 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 [] [2022-03-18 21:11:26,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:26,759 INFO L93 Difference]: Finished difference Result 453 states and 678 transitions. [2022-03-18 21:11:26,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:26,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-18 21:11:26,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:26,761 INFO L225 Difference]: With dead ends: 453 [2022-03-18 21:11:26,761 INFO L226 Difference]: Without dead ends: 453 [2022-03-18 21:11:26,761 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:11:26,761 INFO L912 BasicCegarLoop]: 119 mSDtfsCounter, 115 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:26,762 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 346 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 473 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-03-18 21:11:26,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-03-18 21:11:26,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 375. [2022-03-18 21:11:26,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 370 states have (on average 1.5297297297297296) internal successors, (566), 370 states have internal predecessors, (566), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:26,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 570 transitions. [2022-03-18 21:11:26,766 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 570 transitions. Word has length 122 [2022-03-18 21:11:26,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:26,766 INFO L478 AbstractCegarLoop]: Abstraction has 375 states and 570 transitions. [2022-03-18 21:11:26,767 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:26,767 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 570 transitions. [2022-03-18 21:11:26,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-18 21:11:26,767 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:26,767 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:11:26,768 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-18 21:11:26,768 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:26,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:26,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1281634973, now seen corresponding path program 1 times [2022-03-18 21:11:26,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:26,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342523806] [2022-03-18 21:11:26,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:26,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:26,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:26,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:26,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:26,856 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 21:11:26,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:26,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342523806] [2022-03-18 21:11:26,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342523806] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:26,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:26,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:26,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676488154] [2022-03-18 21:11:26,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:26,857 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:26,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:26,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:26,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:26,857 INFO L87 Difference]: Start difference. First operand 375 states and 570 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:28,794 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:29,982 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 [] [2022-03-18 21:11:31,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:31,386 INFO L93 Difference]: Finished difference Result 432 states and 650 transitions. [2022-03-18 21:11:31,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:31,386 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-18 21:11:31,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:31,387 INFO L225 Difference]: With dead ends: 432 [2022-03-18 21:11:31,387 INFO L226 Difference]: Without dead ends: 432 [2022-03-18 21:11:31,388 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:11:31,388 INFO L912 BasicCegarLoop]: 181 mSDtfsCounter, 75 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:31,388 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 477 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-18 21:11:31,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-03-18 21:11:31,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 381. [2022-03-18 21:11:31,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 376 states have (on average 1.5319148936170213) internal successors, (576), 376 states have internal predecessors, (576), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:31,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 580 transitions. [2022-03-18 21:11:31,393 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 580 transitions. Word has length 123 [2022-03-18 21:11:31,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:31,393 INFO L478 AbstractCegarLoop]: Abstraction has 381 states and 580 transitions. [2022-03-18 21:11:31,393 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:31,393 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 580 transitions. [2022-03-18 21:11:31,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-18 21:11:31,394 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:31,394 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:11:31,394 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-18 21:11:31,394 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:31,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:31,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1587884536, now seen corresponding path program 1 times [2022-03-18 21:11:31,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:31,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28238123] [2022-03-18 21:11:31,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:31,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:31,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:31,483 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 21:11:31,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:31,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28238123] [2022-03-18 21:11:31,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28238123] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:31,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:31,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:31,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139076808] [2022-03-18 21:11:31,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:31,484 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:31,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:31,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:31,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:31,484 INFO L87 Difference]: Start difference. First operand 381 states and 580 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:32,680 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 [] [2022-03-18 21:11:34,697 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:36,002 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:38,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:38,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:38,446 INFO L93 Difference]: Finished difference Result 424 states and 636 transitions. [2022-03-18 21:11:38,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:38,446 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-18 21:11:38,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:38,447 INFO L225 Difference]: With dead ends: 424 [2022-03-18 21:11:38,447 INFO L226 Difference]: Without dead ends: 424 [2022-03-18 21:11:38,447 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:11:38,448 INFO L912 BasicCegarLoop]: 184 mSDtfsCounter, 59 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:38,448 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 483 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 495 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-03-18 21:11:38,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-03-18 21:11:38,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 384. [2022-03-18 21:11:38,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 379 states have (on average 1.5277044854881265) internal successors, (579), 379 states have internal predecessors, (579), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:38,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 583 transitions. [2022-03-18 21:11:38,453 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 583 transitions. Word has length 131 [2022-03-18 21:11:38,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:38,453 INFO L478 AbstractCegarLoop]: Abstraction has 384 states and 583 transitions. [2022-03-18 21:11:38,453 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:38,453 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 583 transitions. [2022-03-18 21:11:38,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-03-18 21:11:38,454 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:38,454 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:11:38,454 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-18 21:11:38,454 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:38,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:38,455 INFO L85 PathProgramCache]: Analyzing trace with hash 361584944, now seen corresponding path program 1 times [2022-03-18 21:11:38,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:38,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563561202] [2022-03-18 21:11:38,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:38,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:38,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:38,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:38,552 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 21:11:38,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:38,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563561202] [2022-03-18 21:11:38,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563561202] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:38,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:38,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:38,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418462088] [2022-03-18 21:11:38,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:38,553 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:38,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:38,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:38,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:38,553 INFO L87 Difference]: Start difference. First operand 384 states and 583 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:40,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:42,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:42,375 INFO L93 Difference]: Finished difference Result 424 states and 635 transitions. [2022-03-18 21:11:42,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:42,375 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-03-18 21:11:42,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:42,376 INFO L225 Difference]: With dead ends: 424 [2022-03-18 21:11:42,376 INFO L226 Difference]: Without dead ends: 424 [2022-03-18 21:11:42,376 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:11:42,377 INFO L912 BasicCegarLoop]: 190 mSDtfsCounter, 75 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:42,377 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 495 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-03-18 21:11:42,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-03-18 21:11:42,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 384. [2022-03-18 21:11:42,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 379 states have (on average 1.525065963060686) internal successors, (578), 379 states have internal predecessors, (578), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:42,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 582 transitions. [2022-03-18 21:11:42,381 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 582 transitions. Word has length 139 [2022-03-18 21:11:42,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:42,381 INFO L478 AbstractCegarLoop]: Abstraction has 384 states and 582 transitions. [2022-03-18 21:11:42,381 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:42,381 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 582 transitions. [2022-03-18 21:11:42,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-03-18 21:11:42,382 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:42,382 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:11:42,382 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-18 21:11:42,382 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:42,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:42,383 INFO L85 PathProgramCache]: Analyzing trace with hash -608706063, now seen corresponding path program 1 times [2022-03-18 21:11:42,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:42,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798730870] [2022-03-18 21:11:42,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:42,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:42,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:42,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:42,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:42,481 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-18 21:11:42,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:42,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798730870] [2022-03-18 21:11:42,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798730870] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:42,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:42,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:42,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628233914] [2022-03-18 21:11:42,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:42,482 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:42,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:42,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:42,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:42,483 INFO L87 Difference]: Start difference. First operand 384 states and 582 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:44,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:45,978 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:47,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:48,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:48,124 INFO L93 Difference]: Finished difference Result 535 states and 809 transitions. [2022-03-18 21:11:48,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:48,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-03-18 21:11:48,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:48,126 INFO L225 Difference]: With dead ends: 535 [2022-03-18 21:11:48,126 INFO L226 Difference]: Without dead ends: 535 [2022-03-18 21:11:48,126 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:11:48,126 INFO L912 BasicCegarLoop]: 135 mSDtfsCounter, 119 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:48,127 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 378 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-03-18 21:11:48,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-03-18 21:11:48,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 448. [2022-03-18 21:11:48,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 443 states have (on average 1.5327313769751694) internal successors, (679), 443 states have internal predecessors, (679), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:48,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 683 transitions. [2022-03-18 21:11:48,132 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 683 transitions. Word has length 139 [2022-03-18 21:11:48,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:48,133 INFO L478 AbstractCegarLoop]: Abstraction has 448 states and 683 transitions. [2022-03-18 21:11:48,133 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:48,133 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 683 transitions. [2022-03-18 21:11:48,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-18 21:11:48,133 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:48,134 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:11:48,134 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-18 21:11:48,134 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:48,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:48,134 INFO L85 PathProgramCache]: Analyzing trace with hash -244662467, now seen corresponding path program 1 times [2022-03-18 21:11:48,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:48,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059412282] [2022-03-18 21:11:48,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:48,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:48,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:48,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:48,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:48,243 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-18 21:11:48,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:48,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059412282] [2022-03-18 21:11:48,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059412282] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:48,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:48,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:48,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722800084] [2022-03-18 21:11:48,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:48,244 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:48,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:48,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:48,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:48,245 INFO L87 Difference]: Start difference. First operand 448 states and 683 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:49,830 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:51,781 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:52,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:52,395 INFO L93 Difference]: Finished difference Result 513 states and 767 transitions. [2022-03-18 21:11:52,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:52,395 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-03-18 21:11:52,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:52,402 INFO L225 Difference]: With dead ends: 513 [2022-03-18 21:11:52,402 INFO L226 Difference]: Without dead ends: 513 [2022-03-18 21:11:52,402 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:11:52,402 INFO L912 BasicCegarLoop]: 139 mSDtfsCounter, 135 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:52,403 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 386 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-03-18 21:11:52,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-03-18 21:11:52,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 448. [2022-03-18 21:11:52,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 443 states have (on average 1.5146726862302482) internal successors, (671), 443 states have internal predecessors, (671), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:52,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 675 transitions. [2022-03-18 21:11:52,408 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 675 transitions. Word has length 144 [2022-03-18 21:11:52,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:52,408 INFO L478 AbstractCegarLoop]: Abstraction has 448 states and 675 transitions. [2022-03-18 21:11:52,408 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:52,408 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 675 transitions. [2022-03-18 21:11:52,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-18 21:11:52,409 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:52,409 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:11:52,409 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-18 21:11:52,409 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:52,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:52,409 INFO L85 PathProgramCache]: Analyzing trace with hash -2078608695, now seen corresponding path program 1 times [2022-03-18 21:11:52,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:52,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316278097] [2022-03-18 21:11:52,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:52,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:52,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:52,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:52,529 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 21:11:52,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:52,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316278097] [2022-03-18 21:11:52,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316278097] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:52,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:52,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:52,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110353444] [2022-03-18 21:11:52,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:52,530 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:52,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:52,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:52,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:52,530 INFO L87 Difference]: Start difference. First operand 448 states and 675 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:53,646 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:55,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:58,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:58,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:58,835 INFO L93 Difference]: Finished difference Result 553 states and 824 transitions. [2022-03-18 21:11:58,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:58,835 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-03-18 21:11:58,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:58,836 INFO L225 Difference]: With dead ends: 553 [2022-03-18 21:11:58,836 INFO L226 Difference]: Without dead ends: 553 [2022-03-18 21:11:58,837 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:11:58,837 INFO L912 BasicCegarLoop]: 139 mSDtfsCounter, 115 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 46 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:58,837 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 386 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-03-18 21:11:58,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-03-18 21:11:58,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 478. [2022-03-18 21:11:58,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.5052854122621564) internal successors, (712), 473 states have internal predecessors, (712), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:58,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 716 transitions. [2022-03-18 21:11:58,842 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 716 transitions. Word has length 144 [2022-03-18 21:11:58,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:58,843 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 716 transitions. [2022-03-18 21:11:58,843 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:58,843 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 716 transitions. [2022-03-18 21:11:58,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-18 21:11:58,844 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:58,844 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:11:58,844 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-18 21:11:58,844 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:58,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:58,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1171735351, now seen corresponding path program 1 times [2022-03-18 21:11:58,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:58,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51032385] [2022-03-18 21:11:58,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:58,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:58,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:58,952 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 21:11:58,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:58,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51032385] [2022-03-18 21:11:58,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51032385] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:58,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:58,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:58,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173879203] [2022-03-18 21:11:58,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:58,954 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:58,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:58,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:58,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:58,955 INFO L87 Difference]: Start difference. First operand 478 states and 716 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:00,450 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:02,472 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:04,906 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:05,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:12:05,322 INFO L93 Difference]: Finished difference Result 543 states and 802 transitions. [2022-03-18 21:12:05,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:12:05,322 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-03-18 21:12:05,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:12:05,324 INFO L225 Difference]: With dead ends: 543 [2022-03-18 21:12:05,324 INFO L226 Difference]: Without dead ends: 543 [2022-03-18 21:12:05,324 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:12:05,324 INFO L912 BasicCegarLoop]: 129 mSDtfsCounter, 114 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 54 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:12:05,324 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 366 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 460 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-03-18 21:12:05,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2022-03-18 21:12:05,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 478. [2022-03-18 21:12:05,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.492600422832981) internal successors, (706), 473 states have internal predecessors, (706), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:05,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 710 transitions. [2022-03-18 21:12:05,329 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 710 transitions. Word has length 145 [2022-03-18 21:12:05,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:12:05,330 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 710 transitions. [2022-03-18 21:12:05,330 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:05,330 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 710 transitions. [2022-03-18 21:12:05,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-18 21:12:05,331 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:12:05,331 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:12:05,331 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-18 21:12:05,331 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:12:05,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:12:05,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1581519040, now seen corresponding path program 1 times [2022-03-18 21:12:05,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:12:05,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668662353] [2022-03-18 21:12:05,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:05,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:12:05,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:05,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:12:05,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:05,455 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-18 21:12:05,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:12:05,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668662353] [2022-03-18 21:12:05,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668662353] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:12:05,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:12:05,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:12:05,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335201317] [2022-03-18 21:12:05,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:12:05,456 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:12:05,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:12:05,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:12:05,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:12:05,456 INFO L87 Difference]: Start difference. First operand 478 states and 710 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:08,989 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:11,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:11,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:12:11,414 INFO L93 Difference]: Finished difference Result 543 states and 800 transitions. [2022-03-18 21:12:11,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:12:11,414 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-03-18 21:12:11,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:12:11,416 INFO L225 Difference]: With dead ends: 543 [2022-03-18 21:12:11,416 INFO L226 Difference]: Without dead ends: 543 [2022-03-18 21:12:11,416 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:12:11,417 INFO L912 BasicCegarLoop]: 139 mSDtfsCounter, 106 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:12:11,419 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 386 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 471 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-03-18 21:12:11,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2022-03-18 21:12:11,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 478. [2022-03-18 21:12:11,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.4883720930232558) internal successors, (704), 473 states have internal predecessors, (704), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:11,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 708 transitions. [2022-03-18 21:12:11,439 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 708 transitions. Word has length 145 [2022-03-18 21:12:11,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:12:11,439 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 708 transitions. [2022-03-18 21:12:11,439 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:11,439 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 708 transitions. [2022-03-18 21:12:11,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-18 21:12:11,440 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:12:11,440 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:12:11,440 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-18 21:12:11,440 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:12:11,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:12:11,441 INFO L85 PathProgramCache]: Analyzing trace with hash 249107055, now seen corresponding path program 1 times [2022-03-18 21:12:11,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:12:11,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948452] [2022-03-18 21:12:11,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:11,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:12:11,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:11,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:12:11,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:11,544 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 21:12:11,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:12:11,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948452] [2022-03-18 21:12:11,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948452] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:12:11,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:12:11,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:12:11,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830813142] [2022-03-18 21:12:11,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:12:11,544 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:12:11,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:12:11,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:12:11,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:12:11,545 INFO L87 Difference]: Start difference. First operand 478 states and 708 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:13,130 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:15,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:16,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:18,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:18,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:12:18,784 INFO L93 Difference]: Finished difference Result 506 states and 746 transitions. [2022-03-18 21:12:18,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:12:18,784 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-03-18 21:12:18,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:12:18,786 INFO L225 Difference]: With dead ends: 506 [2022-03-18 21:12:18,786 INFO L226 Difference]: Without dead ends: 506 [2022-03-18 21:12:18,786 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:12:18,786 INFO L912 BasicCegarLoop]: 198 mSDtfsCounter, 60 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:12:18,786 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 511 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 483 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-03-18 21:12:18,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2022-03-18 21:12:18,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 478. [2022-03-18 21:12:18,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.4862579281183932) internal successors, (703), 473 states have internal predecessors, (703), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:18,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 707 transitions. [2022-03-18 21:12:18,791 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 707 transitions. Word has length 147 [2022-03-18 21:12:18,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:12:18,791 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 707 transitions. [2022-03-18 21:12:18,791 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:18,791 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 707 transitions. [2022-03-18 21:12:18,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-18 21:12:18,792 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:12:18,792 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:12:18,792 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-18 21:12:18,792 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:12:18,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:12:18,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1898427519, now seen corresponding path program 1 times [2022-03-18 21:12:18,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:12:18,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300244136] [2022-03-18 21:12:18,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:18,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:12:18,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:18,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:12:18,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:18,983 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 21:12:18,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:12:18,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300244136] [2022-03-18 21:12:18,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300244136] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:12:18,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:12:18,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:12:18,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128468189] [2022-03-18 21:12:18,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:12:18,984 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:12:18,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:12:18,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:12:18,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:12:18,985 INFO L87 Difference]: Start difference. First operand 478 states and 707 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:20,826 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 [] [2022-03-18 21:12:22,854 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:25,818 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:26,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:12:26,238 INFO L93 Difference]: Finished difference Result 543 states and 792 transitions. [2022-03-18 21:12:26,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:12:26,238 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-03-18 21:12:26,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:12:26,240 INFO L225 Difference]: With dead ends: 543 [2022-03-18 21:12:26,240 INFO L226 Difference]: Without dead ends: 543 [2022-03-18 21:12:26,240 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:12:26,240 INFO L912 BasicCegarLoop]: 129 mSDtfsCounter, 114 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 54 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:12:26,240 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 366 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 460 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-03-18 21:12:26,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2022-03-18 21:12:26,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 478. [2022-03-18 21:12:26,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 473 states have (on average 1.4714587737843552) internal successors, (696), 473 states have internal predecessors, (696), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:26,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 700 transitions. [2022-03-18 21:12:26,245 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 700 transitions. Word has length 148 [2022-03-18 21:12:26,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:12:26,246 INFO L478 AbstractCegarLoop]: Abstraction has 478 states and 700 transitions. [2022-03-18 21:12:26,246 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:26,246 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 700 transitions. [2022-03-18 21:12:26,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-18 21:12:26,247 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:12:26,247 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:12:26,247 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-18 21:12:26,247 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:12:26,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:12:26,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1088275173, now seen corresponding path program 1 times [2022-03-18 21:12:26,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:12:26,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466636376] [2022-03-18 21:12:26,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:26,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:12:26,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:26,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:12:26,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:26,339 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-18 21:12:26,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:12:26,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466636376] [2022-03-18 21:12:26,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466636376] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:12:26,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:12:26,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:12:26,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747220640] [2022-03-18 21:12:26,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:12:26,340 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:12:26,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:12:26,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:12:26,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:12:26,340 INFO L87 Difference]: Start difference. First operand 478 states and 700 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:27,836 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:30,251 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:30,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:12:30,560 INFO L93 Difference]: Finished difference Result 922 states and 1351 transitions. [2022-03-18 21:12:30,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:12:30,560 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-03-18 21:12:30,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:12:30,562 INFO L225 Difference]: With dead ends: 922 [2022-03-18 21:12:30,562 INFO L226 Difference]: Without dead ends: 922 [2022-03-18 21:12:30,562 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:12:30,563 INFO L912 BasicCegarLoop]: 248 mSDtfsCounter, 131 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:12:30,563 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 442 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 286 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-03-18 21:12:30,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2022-03-18 21:12:30,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 920. [2022-03-18 21:12:30,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 915 states have (on average 1.4710382513661202) internal successors, (1346), 915 states have internal predecessors, (1346), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:30,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1350 transitions. [2022-03-18 21:12:30,571 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1350 transitions. Word has length 153 [2022-03-18 21:12:30,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:12:30,571 INFO L478 AbstractCegarLoop]: Abstraction has 920 states and 1350 transitions. [2022-03-18 21:12:30,571 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:30,572 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1350 transitions. [2022-03-18 21:12:30,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-18 21:12:30,573 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:12:30,573 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:12:30,573 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-18 21:12:30,573 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:12:30,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:12:30,574 INFO L85 PathProgramCache]: Analyzing trace with hash -11721764, now seen corresponding path program 1 times [2022-03-18 21:12:30,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:12:30,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718434681] [2022-03-18 21:12:30,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:30,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:12:30,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:30,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:12:30,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:30,651 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-03-18 21:12:30,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:12:30,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718434681] [2022-03-18 21:12:30,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718434681] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:12:30,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:12:30,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:12:30,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822955176] [2022-03-18 21:12:30,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:12:30,651 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:12:30,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:12:30,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:12:30,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:12:30,652 INFO L87 Difference]: Start difference. First operand 920 states and 1350 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:34,119 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 [] [2022-03-18 21:12:34,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:12:34,370 INFO L93 Difference]: Finished difference Result 947 states and 1385 transitions. [2022-03-18 21:12:34,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:12:34,371 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-03-18 21:12:34,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:12:34,373 INFO L225 Difference]: With dead ends: 947 [2022-03-18 21:12:34,373 INFO L226 Difference]: Without dead ends: 947 [2022-03-18 21:12:34,373 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:12:34,374 INFO L912 BasicCegarLoop]: 223 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:12:34,374 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 417 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-18 21:12:34,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2022-03-18 21:12:34,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 947. [2022-03-18 21:12:34,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 942 states have (on average 1.4660297239915074) internal successors, (1381), 942 states have internal predecessors, (1381), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:34,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1385 transitions. [2022-03-18 21:12:34,382 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1385 transitions. Word has length 153 [2022-03-18 21:12:34,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:12:34,382 INFO L478 AbstractCegarLoop]: Abstraction has 947 states and 1385 transitions. [2022-03-18 21:12:34,382 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:34,382 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1385 transitions. [2022-03-18 21:12:34,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-18 21:12:34,384 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:12:34,384 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:12:34,384 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-18 21:12:34,384 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:12:34,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:12:34,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1918509085, now seen corresponding path program 1 times [2022-03-18 21:12:34,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:12:34,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217273171] [2022-03-18 21:12:34,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:34,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:12:34,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:34,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:12:34,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:34,491 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-03-18 21:12:34,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:12:34,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217273171] [2022-03-18 21:12:34,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217273171] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:12:34,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:12:34,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:12:34,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320563299] [2022-03-18 21:12:34,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:12:34,492 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:12:34,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:12:34,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:12:34,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:12:34,492 INFO L87 Difference]: Start difference. First operand 947 states and 1385 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:35,736 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:37,757 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:38,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:12:38,221 INFO L93 Difference]: Finished difference Result 949 states and 1387 transitions. [2022-03-18 21:12:38,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:12:38,221 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 153 [2022-03-18 21:12:38,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:12:38,223 INFO L225 Difference]: With dead ends: 949 [2022-03-18 21:12:38,223 INFO L226 Difference]: Without dead ends: 949 [2022-03-18 21:12:38,223 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:12:38,224 INFO L912 BasicCegarLoop]: 211 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:12:38,224 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 396 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 235 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-03-18 21:12:38,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2022-03-18 21:12:38,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 949. [2022-03-18 21:12:38,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 944 states have (on average 1.465042372881356) internal successors, (1383), 944 states have internal predecessors, (1383), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:38,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1387 transitions. [2022-03-18 21:12:38,233 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1387 transitions. Word has length 153 [2022-03-18 21:12:38,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:12:38,234 INFO L478 AbstractCegarLoop]: Abstraction has 949 states and 1387 transitions. [2022-03-18 21:12:38,234 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:38,234 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1387 transitions. [2022-03-18 21:12:38,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-03-18 21:12:38,235 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:12:38,235 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:12:38,235 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-18 21:12:38,236 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:12:38,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:12:38,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1516319031, now seen corresponding path program 1 times [2022-03-18 21:12:38,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:12:38,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92499521] [2022-03-18 21:12:38,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:38,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:12:38,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:38,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:12:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:38,360 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-18 21:12:38,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:12:38,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92499521] [2022-03-18 21:12:38,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92499521] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:12:38,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:12:38,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:12:38,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894900363] [2022-03-18 21:12:38,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:12:38,362 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:12:38,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:12:38,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:12:38,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:12:38,362 INFO L87 Difference]: Start difference. First operand 949 states and 1387 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:39,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:40,932 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:42,560 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:42,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:12:42,994 INFO L93 Difference]: Finished difference Result 990 states and 1436 transitions. [2022-03-18 21:12:42,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:12:42,994 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-03-18 21:12:42,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:12:42,997 INFO L225 Difference]: With dead ends: 990 [2022-03-18 21:12:42,997 INFO L226 Difference]: Without dead ends: 990 [2022-03-18 21:12:42,997 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:12:42,997 INFO L912 BasicCegarLoop]: 206 mSDtfsCounter, 42 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:12:42,997 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 527 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-18 21:12:42,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2022-03-18 21:12:43,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 949. [2022-03-18 21:12:43,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 944 states have (on average 1.4629237288135593) internal successors, (1381), 944 states have internal predecessors, (1381), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:43,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1385 transitions. [2022-03-18 21:12:43,006 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1385 transitions. Word has length 154 [2022-03-18 21:12:43,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:12:43,006 INFO L478 AbstractCegarLoop]: Abstraction has 949 states and 1385 transitions. [2022-03-18 21:12:43,006 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:43,006 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1385 transitions. [2022-03-18 21:12:43,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-03-18 21:12:43,024 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:12:43,024 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:12:43,024 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-18 21:12:43,024 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:12:43,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:12:43,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1851421981, now seen corresponding path program 1 times [2022-03-18 21:12:43,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:12:43,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965060938] [2022-03-18 21:12:43,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:43,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:12:43,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:43,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:12:43,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:43,128 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-18 21:12:43,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:12:43,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965060938] [2022-03-18 21:12:43,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965060938] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:12:43,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:12:43,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:12:43,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859642852] [2022-03-18 21:12:43,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:12:43,129 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:12:43,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:12:43,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:12:43,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:12:43,130 INFO L87 Difference]: Start difference. First operand 949 states and 1385 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:45,137 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:45,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:12:45,493 INFO L93 Difference]: Finished difference Result 986 states and 1430 transitions. [2022-03-18 21:12:45,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:12:45,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-03-18 21:12:45,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:12:45,495 INFO L225 Difference]: With dead ends: 986 [2022-03-18 21:12:45,495 INFO L226 Difference]: Without dead ends: 986 [2022-03-18 21:12:45,496 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:12:45,496 INFO L912 BasicCegarLoop]: 207 mSDtfsCounter, 39 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:12:45,497 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 529 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 460 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 21:12:45,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2022-03-18 21:12:45,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 949. [2022-03-18 21:12:45,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 944 states have (on average 1.4608050847457628) internal successors, (1379), 944 states have internal predecessors, (1379), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:45,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1383 transitions. [2022-03-18 21:12:45,509 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1383 transitions. Word has length 155 [2022-03-18 21:12:45,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:12:45,510 INFO L478 AbstractCegarLoop]: Abstraction has 949 states and 1383 transitions. [2022-03-18 21:12:45,510 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:45,510 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1383 transitions. [2022-03-18 21:12:45,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-03-18 21:12:45,511 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:12:45,511 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:12:45,511 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-18 21:12:45,512 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:12:45,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:12:45,512 INFO L85 PathProgramCache]: Analyzing trace with hash -2103039724, now seen corresponding path program 1 times [2022-03-18 21:12:45,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:12:45,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812472609] [2022-03-18 21:12:45,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:45,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:12:45,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:45,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:12:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:45,636 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-03-18 21:12:45,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:12:45,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812472609] [2022-03-18 21:12:45,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812472609] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:12:45,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:12:45,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:12:45,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659685281] [2022-03-18 21:12:45,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:12:45,638 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:12:45,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:12:45,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:12:45,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:12:45,638 INFO L87 Difference]: Start difference. First operand 949 states and 1383 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:47,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:49,196 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:51,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:52,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:12:52,223 INFO L93 Difference]: Finished difference Result 1028 states and 1494 transitions. [2022-03-18 21:12:52,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:12:52,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-03-18 21:12:52,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:12:52,226 INFO L225 Difference]: With dead ends: 1028 [2022-03-18 21:12:52,226 INFO L226 Difference]: Without dead ends: 1028 [2022-03-18 21:12:52,227 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:12:52,227 INFO L912 BasicCegarLoop]: 237 mSDtfsCounter, 28 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:12:52,227 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 587 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 439 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-03-18 21:12:52,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2022-03-18 21:12:52,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 1001. [2022-03-18 21:12:52,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 996 states have (on average 1.4608433734939759) internal successors, (1455), 996 states have internal predecessors, (1455), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:52,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1459 transitions. [2022-03-18 21:12:52,235 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1459 transitions. Word has length 155 [2022-03-18 21:12:52,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:12:52,236 INFO L478 AbstractCegarLoop]: Abstraction has 1001 states and 1459 transitions. [2022-03-18 21:12:52,236 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:52,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1459 transitions. [2022-03-18 21:12:52,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-03-18 21:12:52,253 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:12:52,253 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:12:52,253 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-18 21:12:52,253 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:12:52,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:12:52,253 INFO L85 PathProgramCache]: Analyzing trace with hash -127001634, now seen corresponding path program 1 times [2022-03-18 21:12:52,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:12:52,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662793332] [2022-03-18 21:12:52,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:52,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:12:52,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:52,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:12:52,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:52,361 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-18 21:12:52,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:12:52,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662793332] [2022-03-18 21:12:52,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662793332] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:12:52,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:12:52,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:12:52,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357900708] [2022-03-18 21:12:52,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:12:52,361 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:12:52,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:12:52,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:12:52,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:12:52,362 INFO L87 Difference]: Start difference. First operand 1001 states and 1459 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:54,242 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:55,850 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:57,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:59,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:12:59,022 INFO L93 Difference]: Finished difference Result 1038 states and 1504 transitions. [2022-03-18 21:12:59,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:12:59,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 161 [2022-03-18 21:12:59,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:12:59,025 INFO L225 Difference]: With dead ends: 1038 [2022-03-18 21:12:59,025 INFO L226 Difference]: Without dead ends: 1038 [2022-03-18 21:12:59,025 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:12:59,026 INFO L912 BasicCegarLoop]: 207 mSDtfsCounter, 48 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:12:59,026 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 529 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-03-18 21:12:59,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2022-03-18 21:12:59,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1001. [2022-03-18 21:12:59,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 996 states have (on average 1.4588353413654618) internal successors, (1453), 996 states have internal predecessors, (1453), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:59,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1457 transitions. [2022-03-18 21:12:59,034 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1457 transitions. Word has length 161 [2022-03-18 21:12:59,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:12:59,034 INFO L478 AbstractCegarLoop]: Abstraction has 1001 states and 1457 transitions. [2022-03-18 21:12:59,034 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:59,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1457 transitions. [2022-03-18 21:12:59,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-03-18 21:12:59,035 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:12:59,036 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:12:59,036 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-18 21:12:59,036 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:12:59,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:12:59,036 INFO L85 PathProgramCache]: Analyzing trace with hash 760045934, now seen corresponding path program 1 times [2022-03-18 21:12:59,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:12:59,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128688722] [2022-03-18 21:12:59,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:59,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:12:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:59,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:12:59,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:59,152 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-18 21:12:59,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:12:59,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128688722] [2022-03-18 21:12:59,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128688722] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:12:59,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:12:59,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:12:59,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712431571] [2022-03-18 21:12:59,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:12:59,153 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:12:59,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:12:59,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:12:59,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:12:59,154 INFO L87 Difference]: Start difference. First operand 1001 states and 1457 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:13:00,466 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:02,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:05,110 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:05,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:13:05,524 INFO L93 Difference]: Finished difference Result 1128 states and 1617 transitions. [2022-03-18 21:13:05,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:13:05,524 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 162 [2022-03-18 21:13:05,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:13:05,527 INFO L225 Difference]: With dead ends: 1128 [2022-03-18 21:13:05,527 INFO L226 Difference]: Without dead ends: 1128 [2022-03-18 21:13:05,527 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:13:05,527 INFO L912 BasicCegarLoop]: 129 mSDtfsCounter, 115 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:13:05,528 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 366 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-03-18 21:13:05,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2022-03-18 21:13:05,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1001. [2022-03-18 21:13:05,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 996 states have (on average 1.4447791164658634) internal successors, (1439), 996 states have internal predecessors, (1439), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:13:05,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1443 transitions. [2022-03-18 21:13:05,536 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1443 transitions. Word has length 162 [2022-03-18 21:13:05,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:13:05,536 INFO L478 AbstractCegarLoop]: Abstraction has 1001 states and 1443 transitions. [2022-03-18 21:13:05,536 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:13:05,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1443 transitions. [2022-03-18 21:13:05,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-03-18 21:13:05,538 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:13:05,538 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:13:05,538 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-18 21:13:05,538 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:13:05,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:13:05,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1459412900, now seen corresponding path program 1 times [2022-03-18 21:13:05,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:13:05,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074377065] [2022-03-18 21:13:05,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:13:05,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:13:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:05,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:13:05,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:05,653 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-18 21:13:05,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:13:05,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074377065] [2022-03-18 21:13:05,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074377065] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:13:05,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:13:05,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:13:05,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457372157] [2022-03-18 21:13:05,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:13:05,654 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:13:05,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:13:05,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:13:05,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:13:05,656 INFO L87 Difference]: Start difference. First operand 1001 states and 1443 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:13:08,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:10,916 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:11,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:13:11,285 INFO L93 Difference]: Finished difference Result 1034 states and 1482 transitions. [2022-03-18 21:13:11,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:13:11,285 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 164 [2022-03-18 21:13:11,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:13:11,288 INFO L225 Difference]: With dead ends: 1034 [2022-03-18 21:13:11,288 INFO L226 Difference]: Without dead ends: 1034 [2022-03-18 21:13:11,288 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:13:11,288 INFO L912 BasicCegarLoop]: 210 mSDtfsCounter, 38 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:13:11,288 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 535 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 456 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-03-18 21:13:11,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2022-03-18 21:13:11,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 1001. [2022-03-18 21:13:11,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 996 states have (on average 1.4427710843373494) internal successors, (1437), 996 states have internal predecessors, (1437), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:13:11,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1441 transitions. [2022-03-18 21:13:11,320 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1441 transitions. Word has length 164 [2022-03-18 21:13:11,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:13:11,321 INFO L478 AbstractCegarLoop]: Abstraction has 1001 states and 1441 transitions. [2022-03-18 21:13:11,321 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:13:11,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1441 transitions. [2022-03-18 21:13:11,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-03-18 21:13:11,322 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:13:11,322 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:13:11,322 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-18 21:13:11,322 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:13:11,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:13:11,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1551372169, now seen corresponding path program 1 times [2022-03-18 21:13:11,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:13:11,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437793697] [2022-03-18 21:13:11,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:13:11,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:13:11,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:11,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:13:11,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:11,450 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-18 21:13:11,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:13:11,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437793697] [2022-03-18 21:13:11,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437793697] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:13:11,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:13:11,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:13:11,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160006858] [2022-03-18 21:13:11,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:13:11,451 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:13:11,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:13:11,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:13:11,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:13:11,452 INFO L87 Difference]: Start difference. First operand 1001 states and 1441 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:13:13,464 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:13,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:13:13,834 INFO L93 Difference]: Finished difference Result 1026 states and 1470 transitions. [2022-03-18 21:13:13,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:13:13,835 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 165 [2022-03-18 21:13:13,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:13:13,837 INFO L225 Difference]: With dead ends: 1026 [2022-03-18 21:13:13,837 INFO L226 Difference]: Without dead ends: 1026 [2022-03-18 21:13:13,838 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:13:13,838 INFO L912 BasicCegarLoop]: 212 mSDtfsCounter, 33 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:13:13,838 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 539 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 450 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:13:13,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2022-03-18 21:13:13,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 1001. [2022-03-18 21:13:13,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 996 states have (on average 1.4407630522088353) internal successors, (1435), 996 states have internal predecessors, (1435), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:13:13,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1439 transitions. [2022-03-18 21:13:13,846 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1439 transitions. Word has length 165 [2022-03-18 21:13:13,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:13:13,847 INFO L478 AbstractCegarLoop]: Abstraction has 1001 states and 1439 transitions. [2022-03-18 21:13:13,847 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:13:13,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1439 transitions. [2022-03-18 21:13:13,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-03-18 21:13:13,848 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:13:13,848 INFO L500 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] [2022-03-18 21:13:13,848 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-18 21:13:13,848 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:13:13,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:13:13,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1131694392, now seen corresponding path program 1 times [2022-03-18 21:13:13,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:13:13,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321353178] [2022-03-18 21:13:13,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:13:13,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:13:13,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:13,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:13:13,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:13,945 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-03-18 21:13:13,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:13:13,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321353178] [2022-03-18 21:13:13,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321353178] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:13:13,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:13:13,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:13:13,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632405742] [2022-03-18 21:13:13,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:13:13,946 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:13:13,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:13:13,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:13:13,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:13:13,947 INFO L87 Difference]: Start difference. First operand 1001 states and 1439 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) [2022-03-18 21:13:15,697 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:17,718 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:19,050 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:19,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:13:19,462 INFO L93 Difference]: Finished difference Result 1472 states and 2118 transitions. [2022-03-18 21:13:19,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:13:19,462 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 [2022-03-18 21:13:19,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:13:19,465 INFO L225 Difference]: With dead ends: 1472 [2022-03-18 21:13:19,465 INFO L226 Difference]: Without dead ends: 1472 [2022-03-18 21:13:19,466 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:13:19,466 INFO L912 BasicCegarLoop]: 376 mSDtfsCounter, 141 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:13:19,466 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 570 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 416 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-03-18 21:13:19,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2022-03-18 21:13:19,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1472. [2022-03-18 21:13:19,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1467 states have (on average 1.4410361281526927) internal successors, (2114), 1467 states have internal predecessors, (2114), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:13:19,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 2118 transitions. [2022-03-18 21:13:19,476 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 2118 transitions. Word has length 172 [2022-03-18 21:13:19,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:13:19,477 INFO L478 AbstractCegarLoop]: Abstraction has 1472 states and 2118 transitions. [2022-03-18 21:13:19,477 INFO L479 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) [2022-03-18 21:13:19,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 2118 transitions. [2022-03-18 21:13:19,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-03-18 21:13:19,478 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:13:19,478 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:13:19,478 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-18 21:13:19,478 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:13:19,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:13:19,479 INFO L85 PathProgramCache]: Analyzing trace with hash 57013455, now seen corresponding path program 1 times [2022-03-18 21:13:19,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:13:19,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513625494] [2022-03-18 21:13:19,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:13:19,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:13:19,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:19,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:13:19,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:19,571 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-18 21:13:19,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:13:19,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513625494] [2022-03-18 21:13:19,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513625494] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:13:19,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:13:19,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:13:19,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598662551] [2022-03-18 21:13:19,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:13:19,571 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:13:19,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:13:19,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:13:19,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:13:19,572 INFO L87 Difference]: Start difference. First operand 1472 states and 2118 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:13:21,104 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:22,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:23,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:13:23,165 INFO L93 Difference]: Finished difference Result 1908 states and 2745 transitions. [2022-03-18 21:13:23,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:13:23,166 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-03-18 21:13:23,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:13:23,183 INFO L225 Difference]: With dead ends: 1908 [2022-03-18 21:13:23,183 INFO L226 Difference]: Without dead ends: 1908 [2022-03-18 21:13:23,183 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:13:23,194 INFO L912 BasicCegarLoop]: 300 mSDtfsCounter, 134 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:13:23,194 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 494 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-18 21:13:23,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1908 states. [2022-03-18 21:13:23,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1908 to 1903. [2022-03-18 21:13:23,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1903 states, 1898 states have (on average 1.4420442571127503) internal successors, (2737), 1898 states have internal predecessors, (2737), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:13:23,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1903 states to 1903 states and 2741 transitions. [2022-03-18 21:13:23,209 INFO L78 Accepts]: Start accepts. Automaton has 1903 states and 2741 transitions. Word has length 173 [2022-03-18 21:13:23,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:13:23,209 INFO L478 AbstractCegarLoop]: Abstraction has 1903 states and 2741 transitions. [2022-03-18 21:13:23,210 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:13:23,210 INFO L276 IsEmpty]: Start isEmpty. Operand 1903 states and 2741 transitions. [2022-03-18 21:13:23,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-03-18 21:13:23,211 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:13:23,211 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:13:23,211 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-18 21:13:23,212 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:13:23,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:13:23,212 INFO L85 PathProgramCache]: Analyzing trace with hash -57063487, now seen corresponding path program 1 times [2022-03-18 21:13:23,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:13:23,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632149948] [2022-03-18 21:13:23,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:13:23,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:13:23,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:23,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:13:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:23,343 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-03-18 21:13:23,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:13:23,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632149948] [2022-03-18 21:13:23,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632149948] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:13:23,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:13:23,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:13:23,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083692673] [2022-03-18 21:13:23,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:13:23,344 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:13:23,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:13:23,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:13:23,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:13:23,344 INFO L87 Difference]: Start difference. First operand 1903 states and 2741 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:13:25,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:26,556 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:28,571 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:28,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:13:28,959 INFO L93 Difference]: Finished difference Result 2100 states and 3024 transitions. [2022-03-18 21:13:28,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:13:28,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 183 [2022-03-18 21:13:28,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:13:28,963 INFO L225 Difference]: With dead ends: 2100 [2022-03-18 21:13:28,963 INFO L226 Difference]: Without dead ends: 2100 [2022-03-18 21:13:28,963 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:13:28,963 INFO L912 BasicCegarLoop]: 242 mSDtfsCounter, 38 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:13:28,964 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 597 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-18 21:13:28,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2022-03-18 21:13:28,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 2015. [2022-03-18 21:13:28,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2015 states, 2010 states have (on average 1.4432835820895522) internal successors, (2901), 2010 states have internal predecessors, (2901), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:13:28,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2015 states to 2015 states and 2905 transitions. [2022-03-18 21:13:28,997 INFO L78 Accepts]: Start accepts. Automaton has 2015 states and 2905 transitions. Word has length 183 [2022-03-18 21:13:29,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:13:29,004 INFO L478 AbstractCegarLoop]: Abstraction has 2015 states and 2905 transitions. [2022-03-18 21:13:29,004 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:13:29,004 INFO L276 IsEmpty]: Start isEmpty. Operand 2015 states and 2905 transitions. [2022-03-18 21:13:29,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-03-18 21:13:29,006 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:13:29,006 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:13:29,006 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-18 21:13:29,006 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:13:29,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:13:29,006 INFO L85 PathProgramCache]: Analyzing trace with hash 20707135, now seen corresponding path program 1 times [2022-03-18 21:13:29,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:13:29,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686003679] [2022-03-18 21:13:29,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:13:29,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:13:29,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:29,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:13:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:29,127 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 214 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-18 21:13:29,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:13:29,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686003679] [2022-03-18 21:13:29,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686003679] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:13:29,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:13:29,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:13:29,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26216620] [2022-03-18 21:13:29,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:13:29,128 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:13:29,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:13:29,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:13:29,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:13:29,128 INFO L87 Difference]: Start difference. First operand 2015 states and 2905 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:13:31,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:33,669 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:34,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:13:34,042 INFO L93 Difference]: Finished difference Result 2222 states and 3190 transitions. [2022-03-18 21:13:34,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:13:34,042 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 188 [2022-03-18 21:13:34,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:13:34,045 INFO L225 Difference]: With dead ends: 2222 [2022-03-18 21:13:34,045 INFO L226 Difference]: Without dead ends: 2222 [2022-03-18 21:13:34,045 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:13:34,045 INFO L912 BasicCegarLoop]: 237 mSDtfsCounter, 63 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:13:34,045 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 586 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-03-18 21:13:34,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2222 states. [2022-03-18 21:13:34,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2222 to 2099. [2022-03-18 21:13:34,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2099 states, 2094 states have (on average 1.4441260744985673) internal successors, (3024), 2094 states have internal predecessors, (3024), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:13:34,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2099 states to 2099 states and 3028 transitions. [2022-03-18 21:13:34,066 INFO L78 Accepts]: Start accepts. Automaton has 2099 states and 3028 transitions. Word has length 188 [2022-03-18 21:13:34,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:13:34,066 INFO L478 AbstractCegarLoop]: Abstraction has 2099 states and 3028 transitions. [2022-03-18 21:13:34,067 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:13:34,067 INFO L276 IsEmpty]: Start isEmpty. Operand 2099 states and 3028 transitions. [2022-03-18 21:13:34,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-03-18 21:13:34,069 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:13:34,069 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:13:34,069 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-18 21:13:34,069 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:13:34,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:13:34,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1813520391, now seen corresponding path program 1 times [2022-03-18 21:13:34,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:13:34,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395186134] [2022-03-18 21:13:34,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:13:34,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:13:34,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:34,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:13:34,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:34,169 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-03-18 21:13:34,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:13:34,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395186134] [2022-03-18 21:13:34,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395186134] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:13:34,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:13:34,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:13:34,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930703687] [2022-03-18 21:13:34,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:13:34,170 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:13:34,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:13:34,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:13:34,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:13:34,171 INFO L87 Difference]: Start difference. First operand 2099 states and 3028 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) [2022-03-18 21:13:35,188 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:37,205 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:40,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:40,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:13:40,405 INFO L93 Difference]: Finished difference Result 2222 states and 3187 transitions. [2022-03-18 21:13:40,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:13:40,405 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 195 [2022-03-18 21:13:40,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:13:40,408 INFO L225 Difference]: With dead ends: 2222 [2022-03-18 21:13:40,408 INFO L226 Difference]: Without dead ends: 2222 [2022-03-18 21:13:40,408 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:13:40,409 INFO L912 BasicCegarLoop]: 237 mSDtfsCounter, 55 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:13:40,409 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 586 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 507 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-03-18 21:13:40,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2222 states. [2022-03-18 21:13:40,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2222 to 2120. [2022-03-18 21:13:40,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2120 states, 2115 states have (on average 1.4425531914893617) internal successors, (3051), 2115 states have internal predecessors, (3051), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:13:40,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2120 states to 2120 states and 3055 transitions. [2022-03-18 21:13:40,426 INFO L78 Accepts]: Start accepts. Automaton has 2120 states and 3055 transitions. Word has length 195 [2022-03-18 21:13:40,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:13:40,427 INFO L478 AbstractCegarLoop]: Abstraction has 2120 states and 3055 transitions. [2022-03-18 21:13:40,427 INFO L479 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) [2022-03-18 21:13:40,427 INFO L276 IsEmpty]: Start isEmpty. Operand 2120 states and 3055 transitions. [2022-03-18 21:13:40,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-03-18 21:13:40,429 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:13:40,429 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:13:40,429 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-18 21:13:40,430 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:13:40,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:13:40,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1820237747, now seen corresponding path program 1 times [2022-03-18 21:13:40,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:13:40,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872326821] [2022-03-18 21:13:40,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:13:40,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:13:40,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:40,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:13:40,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:40,558 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-03-18 21:13:40,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:13:40,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872326821] [2022-03-18 21:13:40,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872326821] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:13:40,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:13:40,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:13:40,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706866362] [2022-03-18 21:13:40,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:13:40,559 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:13:40,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:13:40,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:13:40,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:13:40,560 INFO L87 Difference]: Start difference. First operand 2120 states and 3055 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:13:41,860 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:43,356 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:44,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:45,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:46,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:13:46,076 INFO L93 Difference]: Finished difference Result 2362 states and 3372 transitions. [2022-03-18 21:13:46,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:13:46,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 196 [2022-03-18 21:13:46,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:13:46,080 INFO L225 Difference]: With dead ends: 2362 [2022-03-18 21:13:46,080 INFO L226 Difference]: Without dead ends: 2362 [2022-03-18 21:13:46,080 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:13:46,080 INFO L912 BasicCegarLoop]: 132 mSDtfsCounter, 104 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:13:46,080 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 372 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-03-18 21:13:46,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2022-03-18 21:13:46,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2120. [2022-03-18 21:13:46,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2120 states, 2115 states have (on average 1.4368794326241134) internal successors, (3039), 2115 states have internal predecessors, (3039), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:13:46,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2120 states to 2120 states and 3043 transitions. [2022-03-18 21:13:46,100 INFO L78 Accepts]: Start accepts. Automaton has 2120 states and 3043 transitions. Word has length 196 [2022-03-18 21:13:46,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:13:46,101 INFO L478 AbstractCegarLoop]: Abstraction has 2120 states and 3043 transitions. [2022-03-18 21:13:46,101 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:13:46,101 INFO L276 IsEmpty]: Start isEmpty. Operand 2120 states and 3043 transitions. [2022-03-18 21:13:46,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-18 21:13:46,103 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:13:46,103 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:13:46,103 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-18 21:13:46,103 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:13:46,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:13:46,104 INFO L85 PathProgramCache]: Analyzing trace with hash 763814783, now seen corresponding path program 1 times [2022-03-18 21:13:46,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:13:46,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193994363] [2022-03-18 21:13:46,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:13:46,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:13:46,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:46,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:13:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:46,479 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-18 21:13:46,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:13:46,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193994363] [2022-03-18 21:13:46,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193994363] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:13:46,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:13:46,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-18 21:13:46,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796641392] [2022-03-18 21:13:46,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:13:46,480 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-18 21:13:46,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:13:46,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-18 21:13:46,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-18 21:13:46,480 INFO L87 Difference]: Start difference. First operand 2120 states and 3043 transitions. Second operand has 7 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:13:47,712 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:49,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:51,378 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:54,232 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:56,256 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:13:56,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:13:56,686 INFO L93 Difference]: Finished difference Result 2128 states and 3053 transitions. [2022-03-18 21:13:56,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-18 21:13:56,686 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 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 197 [2022-03-18 21:13:56,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:13:56,689 INFO L225 Difference]: With dead ends: 2128 [2022-03-18 21:13:56,689 INFO L226 Difference]: Without dead ends: 2120 [2022-03-18 21:13:56,689 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-18 21:13:56,690 INFO L912 BasicCegarLoop]: 209 mSDtfsCounter, 7 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:13:56,690 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 842 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 441 Invalid, 3 Unknown, 0 Unchecked, 10.2s Time] [2022-03-18 21:13:56,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2120 states. [2022-03-18 21:13:56,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2120 to 2120. [2022-03-18 21:13:56,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2120 states, 2115 states have (on average 1.4364066193853429) internal successors, (3038), 2115 states have internal predecessors, (3038), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:13:56,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2120 states to 2120 states and 3042 transitions. [2022-03-18 21:13:56,705 INFO L78 Accepts]: Start accepts. Automaton has 2120 states and 3042 transitions. Word has length 197 [2022-03-18 21:13:56,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:13:56,705 INFO L478 AbstractCegarLoop]: Abstraction has 2120 states and 3042 transitions. [2022-03-18 21:13:56,705 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:13:56,705 INFO L276 IsEmpty]: Start isEmpty. Operand 2120 states and 3042 transitions. [2022-03-18 21:13:56,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-18 21:13:56,707 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:13:56,708 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:13:56,708 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-18 21:13:56,708 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:13:56,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:13:56,708 INFO L85 PathProgramCache]: Analyzing trace with hash 2018596800, now seen corresponding path program 1 times [2022-03-18 21:13:56,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:13:56,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686553683] [2022-03-18 21:13:56,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:13:56,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:13:57,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:57,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:13:57,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:57,794 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 277 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-18 21:13:57,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:13:57,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686553683] [2022-03-18 21:13:57,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686553683] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 21:13:57,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529738265] [2022-03-18 21:13:57,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:13:57,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 21:13:57,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 21:13:57,796 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 21:13:57,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-18 21:13:58,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:13:58,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 1293 conjuncts, 145 conjunts are in the unsatisfiable core [2022-03-18 21:13:58,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 21:13:59,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:13:59,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:13:59,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:13:59,348 INFO L356 Elim1Store]: treesize reduction 1040, result has 8.0 percent of original size [2022-03-18 21:13:59,350 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 11624174 treesize of output 2465916 [2022-03-18 21:14:00,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:14:55,382 INFO L244 Elim1Store]: Index analysis took 1934 ms