/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/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/openssl/s3_clnt.blast.04.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 12:12:50,718 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 12:12:50,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 12:12:50,769 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 12:12:50,770 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 12:12:50,770 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 12:12:50,772 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 12:12:50,773 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 12:12:50,775 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 12:12:50,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 12:12:50,776 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 12:12:50,777 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 12:12:50,777 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 12:12:50,778 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 12:12:50,779 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 12:12:50,780 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 12:12:50,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 12:12:50,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 12:12:50,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 12:12:50,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 12:12:50,785 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 12:12:50,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 12:12:50,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 12:12:50,788 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 12:12:50,789 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 12:12:50,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 12:12:50,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 12:12:50,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 12:12:50,793 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 12:12:50,793 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 12:12:50,794 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-20 12:12:50,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-20 12:12:50,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-20 12:12:50,796 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-20 12:12:50,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-20 12:12:50,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-20 12:12:50,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-20 12:12:50,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-20 12:12:50,799 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-20 12:12:50,804 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 12:12:50,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 12:12:50,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 12:12:50,812 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-03-20 12:12:50,853 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 12:12:50,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 12:12:50,856 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-20 12:12:50,856 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-20 12:12:50,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-20 12:12:50,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-20 12:12:50,857 INFO L138 SettingsManager]: * Use SBE=true [2022-03-20 12:12:50,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 12:12:50,858 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 12:12:50,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 12:12:50,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 12:12:50,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 12:12:50,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 12:12:50,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 12:12:50,859 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 12:12:50,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 12:12:50,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 12:12:50,860 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 12:12:50,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 12:12:50,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 12:12:50,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 12:12:50,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-20 12:12:50,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-20 12:12:50,860 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 12:12:50,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-20 12:12:50,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 12:12:50,861 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-03-20 12:12:50,861 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-03-20 12:12:50,862 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-20 12:12:50,862 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 12:12:51,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 12:12:51,097 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 12:12:51,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 12:12:51,101 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 12:12:51,102 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 12:12:51,103 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_clnt.blast.04.i.cil-2.c [2022-03-20 12:12:51,149 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e13027e4/87c953ec7dba4ef19608abe272a42d25/FLAG790b89188 [2022-03-20 12:12:51,655 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 12:12:51,655 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.04.i.cil-2.c [2022-03-20 12:12:51,676 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e13027e4/87c953ec7dba4ef19608abe272a42d25/FLAG790b89188 [2022-03-20 12:12:52,187 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e13027e4/87c953ec7dba4ef19608abe272a42d25 [2022-03-20 12:12:52,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 12:12:52,194 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-20 12:12:52,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 12:12:52,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 12:12:52,200 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 12:12:52,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 12:12:52" (1/1) ... [2022-03-20 12:12:52,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d841fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:12:52, skipping insertion in model container [2022-03-20 12:12:52,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 12:12:52" (1/1) ... [2022-03-20 12:12:52,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 12:12:52,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 12:12:52,610 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_clnt.blast.04.i.cil-2.c[65405,65418] [2022-03-20 12:12:52,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 12:12:52,642 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 12:12:52,768 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_clnt.blast.04.i.cil-2.c[65405,65418] [2022-03-20 12:12:52,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 12:12:52,791 INFO L208 MainTranslator]: Completed translation [2022-03-20 12:12:52,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:12:52 WrapperNode [2022-03-20 12:12:52,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 12:12:52,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 12:12:52,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 12:12:52,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 12:12:52,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:12:52" (1/1) ... [2022-03-20 12:12:52,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:12:52" (1/1) ... [2022-03-20 12:12:52,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:12:52" (1/1) ... [2022-03-20 12:12:52,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:12:52" (1/1) ... [2022-03-20 12:12:52,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:12:52" (1/1) ... [2022-03-20 12:12:52,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:12:52" (1/1) ... [2022-03-20 12:12:52,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:12:52" (1/1) ... [2022-03-20 12:12:52,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 12:12:52,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 12:12:52,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 12:12:52,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 12:12:52,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:12:52" (1/1) ... [2022-03-20 12:12:52,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 12:12:52,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:12:52,953 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-20 12:12:52,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-20 12:12:52,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 12:12:52,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 12:12:52,998 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 12:12:52,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2022-03-20 12:12:52,998 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2022-03-20 12:12:52,998 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 12:12:52,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-03-20 12:12:52,999 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 12:12:53,000 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 12:12:53,000 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 12:12:53,000 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 12:12:53,000 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 12:12:53,000 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 12:12:53,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 12:12:53,001 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 12:12:53,001 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 12:12:53,001 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 12:12:53,001 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 12:12:53,001 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 12:12:53,001 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 12:12:53,001 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2022-03-20 12:12:53,001 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 12:12:53,001 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-03-20 12:12:53,002 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2022-03-20 12:12:53,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 12:12:53,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 12:12:53,002 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 12:12:53,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 12:12:53,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 12:12:53,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 12:12:53,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 12:12:53,002 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 12:12:53,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 12:12:53,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 12:12:53,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 12:12:53,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 12:12:53,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 12:12:53,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 12:12:53,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 12:12:53,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 12:12:53,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 12:12:53,131 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 12:12:53,132 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 12:12:54,593 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 12:12:55,021 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-03-20 12:12:55,021 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-03-20 12:12:55,031 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 12:12:55,038 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 12:12:55,038 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 12:12:55,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 12:12:55 BoogieIcfgContainer [2022-03-20 12:12:55,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 12:12:55,040 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-20 12:12:55,041 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-20 12:12:55,043 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-20 12:12:55,046 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 12:12:55" (1/1) ... [2022-03-20 12:12:55,048 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-03-20 12:12:55,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 12:12:55 BasicIcfg [2022-03-20 12:12:55,101 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-20 12:12:55,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 12:12:55,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 12:12:55,106 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 12:12:55,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 12:12:52" (1/4) ... [2022-03-20 12:12:55,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b9021e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 12:12:55, skipping insertion in model container [2022-03-20 12:12:55,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:12:52" (2/4) ... [2022-03-20 12:12:55,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b9021e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 12:12:55, skipping insertion in model container [2022-03-20 12:12:55,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 12:12:55" (3/4) ... [2022-03-20 12:12:55,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b9021e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 12:12:55, skipping insertion in model container [2022-03-20 12:12:55,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 12:12:55" (4/4) ... [2022-03-20 12:12:55,110 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.04.i.cil-2.cqvasr [2022-03-20 12:12:55,115 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-20 12:12:55,115 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 12:12:55,170 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 12:12:55,178 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-20 12:12:55,178 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 12:12:55,209 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 130 states have (on average 1.6923076923076923) internal successors, (220), 131 states have internal predecessors, (220), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 12:12:55,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-03-20 12:12:55,216 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:12:55,216 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:12:55,217 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:12:55,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:12:55,221 INFO L85 PathProgramCache]: Analyzing trace with hash 878389628, now seen corresponding path program 1 times [2022-03-20 12:12:55,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:12:55,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902030536] [2022-03-20 12:12:55,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:12:55,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:12:55,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:55,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:12:55,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:55,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:12:55,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:12:55,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902030536] [2022-03-20 12:12:55,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902030536] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:12:55,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:12:55,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:12:55,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026538872] [2022-03-20 12:12:55,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:12:55,801 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:12:55,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:12:55,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:12:55,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:12:55,834 INFO L87 Difference]: Start difference. First operand has 138 states, 130 states have (on average 1.6923076923076923) internal successors, (220), 131 states have internal predecessors, (220), 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 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:57,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:12:58,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:12:58,309 INFO L93 Difference]: Finished difference Result 267 states and 442 transitions. [2022-03-20 12:12:58,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:12:58,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-03-20 12:12:58,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:12:58,319 INFO L225 Difference]: With dead ends: 267 [2022-03-20 12:12:58,319 INFO L226 Difference]: Without dead ends: 122 [2022-03-20 12:12:58,322 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:12:58,324 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 7 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:12:58,325 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 555 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 320 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:12:58,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-03-20 12:12:58,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2022-03-20 12:12:58,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 116 states have (on average 1.5) internal successors, (174), 116 states have internal predecessors, (174), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:58,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 178 transitions. [2022-03-20 12:12:58,361 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 178 transitions. Word has length 30 [2022-03-20 12:12:58,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:12:58,361 INFO L478 AbstractCegarLoop]: Abstraction has 121 states and 178 transitions. [2022-03-20 12:12:58,361 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:58,361 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 178 transitions. [2022-03-20 12:12:58,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-03-20 12:12:58,363 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:12:58,363 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:12:58,363 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 12:12:58,363 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:12:58,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:12:58,364 INFO L85 PathProgramCache]: Analyzing trace with hash -189680389, now seen corresponding path program 1 times [2022-03-20 12:12:58,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:12:58,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026837244] [2022-03-20 12:12:58,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:12:58,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:12:58,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:58,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:12:58,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:58,582 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 12:12:58,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:12:58,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026837244] [2022-03-20 12:12:58,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026837244] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:12:58,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:12:58,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:12:58,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069198540] [2022-03-20 12:12:58,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:12:58,585 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:12:58,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:12:58,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:12:58,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:12:58,586 INFO L87 Difference]: Start difference. First operand 121 states and 178 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:00,597 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:00,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:00,936 INFO L93 Difference]: Finished difference Result 327 states and 490 transitions. [2022-03-20 12:13:00,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:13:00,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-03-20 12:13:00,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:00,939 INFO L225 Difference]: With dead ends: 327 [2022-03-20 12:13:00,939 INFO L226 Difference]: Without dead ends: 222 [2022-03-20 12:13:00,940 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:13:00,942 INFO L913 BasicCegarLoop]: 166 mSDtfsCounter, 124 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:00,942 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 319 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 190 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:13:00,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-03-20 12:13:00,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2022-03-20 12:13:00,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.4838709677419355) internal successors, (322), 217 states have internal predecessors, (322), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:00,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 326 transitions. [2022-03-20 12:13:00,961 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 326 transitions. Word has length 44 [2022-03-20 12:13:00,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:00,962 INFO L478 AbstractCegarLoop]: Abstraction has 222 states and 326 transitions. [2022-03-20 12:13:00,962 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:00,962 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 326 transitions. [2022-03-20 12:13:00,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-03-20 12:13:00,968 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:00,968 INFO L499 BasicCegarLoop]: trace histogram [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] [2022-03-20 12:13:00,969 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 12:13:00,969 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:00,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:00,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1951828473, now seen corresponding path program 1 times [2022-03-20 12:13:00,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:00,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28192344] [2022-03-20 12:13:00,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:00,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:01,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:01,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:01,269 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 12:13:01,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:01,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28192344] [2022-03-20 12:13:01,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28192344] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:01,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:01,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:13:01,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150022231] [2022-03-20 12:13:01,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:01,271 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:13:01,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:01,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:13:01,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:13:01,272 INFO L87 Difference]: Start difference. First operand 222 states and 326 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:03,288 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:03,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:03,774 INFO L93 Difference]: Finished difference Result 362 states and 537 transitions. [2022-03-20 12:13:03,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:13:03,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2022-03-20 12:13:03,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:03,778 INFO L225 Difference]: With dead ends: 362 [2022-03-20 12:13:03,778 INFO L226 Difference]: Without dead ends: 257 [2022-03-20 12:13:03,779 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:13:03,780 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 31 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:03,781 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 484 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 359 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:13:03,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-03-20 12:13:03,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 240. [2022-03-20 12:13:03,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 235 states have (on average 1.4978723404255319) internal successors, (352), 235 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) [2022-03-20 12:13:03,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 356 transitions. [2022-03-20 12:13:03,807 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 356 transitions. Word has length 59 [2022-03-20 12:13:03,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:03,808 INFO L478 AbstractCegarLoop]: Abstraction has 240 states and 356 transitions. [2022-03-20 12:13:03,808 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:03,808 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 356 transitions. [2022-03-20 12:13:03,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-03-20 12:13:03,811 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:03,811 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:13:03,816 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 12:13:03,816 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:03,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:03,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1231550136, now seen corresponding path program 2 times [2022-03-20 12:13:03,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:03,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858814228] [2022-03-20 12:13:03,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:03,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:04,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:04,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:04,115 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 12:13:04,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:04,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858814228] [2022-03-20 12:13:04,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858814228] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:04,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:04,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:13:04,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17199047] [2022-03-20 12:13:04,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:04,119 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:13:04,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:04,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:13:04,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:13:04,120 INFO L87 Difference]: Start difference. First operand 240 states and 356 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:06,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:06,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:06,612 INFO L93 Difference]: Finished difference Result 645 states and 966 transitions. [2022-03-20 12:13:06,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:13:06,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73 [2022-03-20 12:13:06,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:06,615 INFO L225 Difference]: With dead ends: 645 [2022-03-20 12:13:06,615 INFO L226 Difference]: Without dead ends: 421 [2022-03-20 12:13:06,617 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:13:06,618 INFO L913 BasicCegarLoop]: 104 mSDtfsCounter, 112 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:06,618 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 296 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 379 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:13:06,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-03-20 12:13:06,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 262. [2022-03-20 12:13:06,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 257 states have (on average 1.490272373540856) internal successors, (383), 257 states have internal predecessors, (383), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:06,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 387 transitions. [2022-03-20 12:13:06,632 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 387 transitions. Word has length 73 [2022-03-20 12:13:06,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:06,632 INFO L478 AbstractCegarLoop]: Abstraction has 262 states and 387 transitions. [2022-03-20 12:13:06,632 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:06,633 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 387 transitions. [2022-03-20 12:13:06,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-03-20 12:13:06,641 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:06,641 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:13:06,641 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 12:13:06,641 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:06,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:06,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1593666200, now seen corresponding path program 1 times [2022-03-20 12:13:06,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:06,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988780062] [2022-03-20 12:13:06,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:06,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:06,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:06,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:06,919 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 12:13:06,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:06,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988780062] [2022-03-20 12:13:06,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988780062] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:06,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:06,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:13:06,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052196718] [2022-03-20 12:13:06,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:06,921 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:13:06,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:06,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:13:06,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:13:06,922 INFO L87 Difference]: Start difference. First operand 262 states and 387 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:08,934 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:09,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:09,418 INFO L93 Difference]: Finished difference Result 668 states and 995 transitions. [2022-03-20 12:13:09,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:13:09,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73 [2022-03-20 12:13:09,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:09,422 INFO L225 Difference]: With dead ends: 668 [2022-03-20 12:13:09,422 INFO L226 Difference]: Without dead ends: 422 [2022-03-20 12:13:09,422 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:13:09,423 INFO L913 BasicCegarLoop]: 97 mSDtfsCounter, 119 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:09,424 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:13:09,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2022-03-20 12:13:09,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 264. [2022-03-20 12:13:09,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 259 states have (on average 1.4826254826254825) internal successors, (384), 259 states have internal predecessors, (384), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:09,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 388 transitions. [2022-03-20 12:13:09,439 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 388 transitions. Word has length 73 [2022-03-20 12:13:09,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:09,440 INFO L478 AbstractCegarLoop]: Abstraction has 264 states and 388 transitions. [2022-03-20 12:13:09,440 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:09,440 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 388 transitions. [2022-03-20 12:13:09,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-03-20 12:13:09,445 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:09,445 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 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] [2022-03-20 12:13:09,446 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 12:13:09,446 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:09,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:09,446 INFO L85 PathProgramCache]: Analyzing trace with hash 209061239, now seen corresponding path program 1 times [2022-03-20 12:13:09,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:09,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985486397] [2022-03-20 12:13:09,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:09,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:09,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:09,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:09,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:09,654 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 12:13:09,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:09,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985486397] [2022-03-20 12:13:09,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985486397] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:09,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:09,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:13:09,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114114413] [2022-03-20 12:13:09,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:09,657 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:13:09,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:09,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:13:09,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:13:09,658 INFO L87 Difference]: Start difference. First operand 264 states and 388 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:11,670 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:12,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:12,129 INFO L93 Difference]: Finished difference Result 670 states and 993 transitions. [2022-03-20 12:13:12,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:13:12,129 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2022-03-20 12:13:12,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:12,132 INFO L225 Difference]: With dead ends: 670 [2022-03-20 12:13:12,132 INFO L226 Difference]: Without dead ends: 422 [2022-03-20 12:13:12,132 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:13:12,133 INFO L913 BasicCegarLoop]: 108 mSDtfsCounter, 117 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:12,133 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 300 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 394 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:13:12,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2022-03-20 12:13:12,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 266. [2022-03-20 12:13:12,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 261 states have (on average 1.475095785440613) internal successors, (385), 261 states have internal predecessors, (385), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:12,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 389 transitions. [2022-03-20 12:13:12,142 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 389 transitions. Word has length 74 [2022-03-20 12:13:12,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:12,143 INFO L478 AbstractCegarLoop]: Abstraction has 266 states and 389 transitions. [2022-03-20 12:13:12,143 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:12,143 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 389 transitions. [2022-03-20 12:13:12,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-20 12:13:12,144 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:12,144 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2022-03-20 12:13:12,144 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 12:13:12,144 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:12,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:12,145 INFO L85 PathProgramCache]: Analyzing trace with hash 281244916, now seen corresponding path program 1 times [2022-03-20 12:13:12,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:12,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69354088] [2022-03-20 12:13:12,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:12,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:12,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:12,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:12,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:12,356 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 12:13:12,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:12,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69354088] [2022-03-20 12:13:12,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69354088] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:12,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:12,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:13:12,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529526707] [2022-03-20 12:13:12,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:12,357 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:13:12,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:12,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:13:12,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:13:12,358 INFO L87 Difference]: Start difference. First operand 266 states and 389 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:15,257 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:17,281 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:19,310 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:19,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:19,795 INFO L93 Difference]: Finished difference Result 672 states and 991 transitions. [2022-03-20 12:13:19,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:13:19,798 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2022-03-20 12:13:19,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:19,800 INFO L225 Difference]: With dead ends: 672 [2022-03-20 12:13:19,800 INFO L226 Difference]: Without dead ends: 422 [2022-03-20 12:13:19,801 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:13:19,802 INFO L913 BasicCegarLoop]: 97 mSDtfsCounter, 115 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 46 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:19,802 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 278 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 383 Invalid, 3 Unknown, 0 Unchecked, 7.4s Time] [2022-03-20 12:13:19,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2022-03-20 12:13:19,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 268. [2022-03-20 12:13:19,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 263 states have (on average 1.467680608365019) internal successors, (386), 263 states have internal predecessors, (386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:19,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 390 transitions. [2022-03-20 12:13:19,821 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 390 transitions. Word has length 75 [2022-03-20 12:13:19,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:19,822 INFO L478 AbstractCegarLoop]: Abstraction has 268 states and 390 transitions. [2022-03-20 12:13:19,823 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:19,823 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 390 transitions. [2022-03-20 12:13:19,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-03-20 12:13:19,827 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:19,827 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:13:19,828 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 12:13:19,828 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:19,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:19,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1742080012, now seen corresponding path program 1 times [2022-03-20 12:13:19,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:19,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367657803] [2022-03-20 12:13:19,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:19,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:19,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:20,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:20,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:20,030 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 12:13:20,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:20,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367657803] [2022-03-20 12:13:20,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367657803] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:20,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:20,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:13:20,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108081122] [2022-03-20 12:13:20,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:20,031 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:13:20,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:20,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:13:20,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:13:20,032 INFO L87 Difference]: Start difference. First operand 268 states and 390 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:22,043 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:22,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:22,536 INFO L93 Difference]: Finished difference Result 674 states and 989 transitions. [2022-03-20 12:13:22,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:13:22,537 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 76 [2022-03-20 12:13:22,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:22,539 INFO L225 Difference]: With dead ends: 674 [2022-03-20 12:13:22,539 INFO L226 Difference]: Without dead ends: 422 [2022-03-20 12:13:22,540 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:13:22,541 INFO L913 BasicCegarLoop]: 97 mSDtfsCounter, 113 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:22,541 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:13:22,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2022-03-20 12:13:22,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 270. [2022-03-20 12:13:22,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 265 states have (on average 1.460377358490566) internal successors, (387), 265 states have internal predecessors, (387), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:22,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 391 transitions. [2022-03-20 12:13:22,552 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 391 transitions. Word has length 76 [2022-03-20 12:13:22,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:22,552 INFO L478 AbstractCegarLoop]: Abstraction has 270 states and 391 transitions. [2022-03-20 12:13:22,552 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:22,552 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 391 transitions. [2022-03-20 12:13:22,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-20 12:13:22,553 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:22,553 INFO L499 BasicCegarLoop]: trace histogram [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] [2022-03-20 12:13:22,554 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 12:13:22,554 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:22,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:22,554 INFO L85 PathProgramCache]: Analyzing trace with hash 580115528, now seen corresponding path program 1 times [2022-03-20 12:13:22,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:22,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177926959] [2022-03-20 12:13:22,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:22,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:22,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:22,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:22,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:22,733 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-03-20 12:13:22,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:22,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177926959] [2022-03-20 12:13:22,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177926959] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:22,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:22,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:13:22,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633226074] [2022-03-20 12:13:22,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:22,734 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:13:22,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:22,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:13:22,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:13:22,735 INFO L87 Difference]: Start difference. First operand 270 states and 391 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:24,746 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:25,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:25,230 INFO L93 Difference]: Finished difference Result 542 states and 793 transitions. [2022-03-20 12:13:25,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:13:25,232 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 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 77 [2022-03-20 12:13:25,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:25,234 INFO L225 Difference]: With dead ends: 542 [2022-03-20 12:13:25,234 INFO L226 Difference]: Without dead ends: 404 [2022-03-20 12:13:25,234 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:13:25,235 INFO L913 BasicCegarLoop]: 315 mSDtfsCounter, 125 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:25,235 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 477 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 337 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:13:25,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-03-20 12:13:25,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2022-03-20 12:13:25,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 399 states have (on average 1.456140350877193) internal successors, (581), 399 states have internal predecessors, (581), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:25,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 585 transitions. [2022-03-20 12:13:25,247 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 585 transitions. Word has length 77 [2022-03-20 12:13:25,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:25,247 INFO L478 AbstractCegarLoop]: Abstraction has 404 states and 585 transitions. [2022-03-20 12:13:25,247 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:25,247 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 585 transitions. [2022-03-20 12:13:25,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-20 12:13:25,248 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:25,248 INFO L499 BasicCegarLoop]: trace histogram [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] [2022-03-20 12:13:25,249 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 12:13:25,249 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:25,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:25,249 INFO L85 PathProgramCache]: Analyzing trace with hash 611135335, now seen corresponding path program 1 times [2022-03-20 12:13:25,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:25,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116292424] [2022-03-20 12:13:25,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:25,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:25,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:25,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:25,418 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 12:13:25,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:25,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116292424] [2022-03-20 12:13:25,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116292424] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:25,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:25,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:13:25,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747634263] [2022-03-20 12:13:25,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:25,426 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:13:25,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:25,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:13:25,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:13:25,427 INFO L87 Difference]: Start difference. First operand 404 states and 585 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:27,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:27,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:27,705 INFO L93 Difference]: Finished difference Result 700 states and 1016 transitions. [2022-03-20 12:13:27,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:13:27,705 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2022-03-20 12:13:27,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:27,707 INFO L225 Difference]: With dead ends: 700 [2022-03-20 12:13:27,707 INFO L226 Difference]: Without dead ends: 428 [2022-03-20 12:13:27,708 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:13:27,709 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 15 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:27,709 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 359 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 213 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:13:27,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-03-20 12:13:27,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 428. [2022-03-20 12:13:27,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 423 states have (on average 1.4491725768321513) internal successors, (613), 423 states have internal predecessors, (613), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:27,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 617 transitions. [2022-03-20 12:13:27,720 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 617 transitions. Word has length 77 [2022-03-20 12:13:27,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:27,720 INFO L478 AbstractCegarLoop]: Abstraction has 428 states and 617 transitions. [2022-03-20 12:13:27,720 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:27,720 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 617 transitions. [2022-03-20 12:13:27,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-03-20 12:13:27,722 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:27,722 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:13:27,722 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 12:13:27,722 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:27,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:27,722 INFO L85 PathProgramCache]: Analyzing trace with hash -522779701, now seen corresponding path program 1 times [2022-03-20 12:13:27,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:27,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763879567] [2022-03-20 12:13:27,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:27,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:27,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:27,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:27,891 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-20 12:13:27,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:27,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763879567] [2022-03-20 12:13:27,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763879567] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:27,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:27,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:13:27,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446199230] [2022-03-20 12:13:27,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:27,892 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:13:27,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:27,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:13:27,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:13:27,893 INFO L87 Difference]: Start difference. First operand 428 states and 617 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:29,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:30,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:30,340 INFO L93 Difference]: Finished difference Result 858 states and 1246 transitions. [2022-03-20 12:13:30,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:13:30,341 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2022-03-20 12:13:30,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:30,343 INFO L225 Difference]: With dead ends: 858 [2022-03-20 12:13:30,343 INFO L226 Difference]: Without dead ends: 562 [2022-03-20 12:13:30,344 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:13:30,345 INFO L913 BasicCegarLoop]: 314 mSDtfsCounter, 126 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:30,345 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 476 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 338 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:13:30,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2022-03-20 12:13:30,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2022-03-20 12:13:30,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 557 states have (on average 1.4488330341113107) internal successors, (807), 557 states have internal predecessors, (807), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:30,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 811 transitions. [2022-03-20 12:13:30,357 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 811 transitions. Word has length 97 [2022-03-20 12:13:30,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:30,358 INFO L478 AbstractCegarLoop]: Abstraction has 562 states and 811 transitions. [2022-03-20 12:13:30,358 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:30,358 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 811 transitions. [2022-03-20 12:13:30,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-20 12:13:30,359 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:30,375 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:13:30,375 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 12:13:30,375 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:30,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:30,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1194080795, now seen corresponding path program 1 times [2022-03-20 12:13:30,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:30,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062289801] [2022-03-20 12:13:30,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:30,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:30,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:30,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:30,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:30,541 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-20 12:13:30,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:30,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062289801] [2022-03-20 12:13:30,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062289801] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:30,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:30,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:13:30,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16605778] [2022-03-20 12:13:30,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:30,542 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:13:30,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:30,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:13:30,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:13:30,543 INFO L87 Difference]: Start difference. First operand 562 states and 811 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:32,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:32,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:32,987 INFO L93 Difference]: Finished difference Result 1127 states and 1635 transitions. [2022-03-20 12:13:32,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:13:32,988 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-03-20 12:13:32,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:32,991 INFO L225 Difference]: With dead ends: 1127 [2022-03-20 12:13:32,991 INFO L226 Difference]: Without dead ends: 697 [2022-03-20 12:13:32,992 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:13:32,992 INFO L913 BasicCegarLoop]: 315 mSDtfsCounter, 127 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:32,993 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 477 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 339 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:13:32,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2022-03-20 12:13:33,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 697. [2022-03-20 12:13:33,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 692 states have (on average 1.4479768786127167) internal successors, (1002), 692 states have internal predecessors, (1002), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:33,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 1006 transitions. [2022-03-20 12:13:33,008 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 1006 transitions. Word has length 118 [2022-03-20 12:13:33,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:33,008 INFO L478 AbstractCegarLoop]: Abstraction has 697 states and 1006 transitions. [2022-03-20 12:13:33,008 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:33,008 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 1006 transitions. [2022-03-20 12:13:33,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-03-20 12:13:33,010 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:33,010 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:13:33,010 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 12:13:33,010 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:33,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:33,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1203970458, now seen corresponding path program 1 times [2022-03-20 12:13:33,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:33,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761179116] [2022-03-20 12:13:33,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:33,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:33,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:33,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:33,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:33,217 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-03-20 12:13:33,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:33,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761179116] [2022-03-20 12:13:33,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761179116] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:33,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:33,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:13:33,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141434678] [2022-03-20 12:13:33,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:33,218 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:13:33,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:33,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:13:33,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:13:33,219 INFO L87 Difference]: Start difference. First operand 697 states and 1006 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:35,230 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:35,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:35,664 INFO L93 Difference]: Finished difference Result 1832 states and 2646 transitions. [2022-03-20 12:13:35,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:13:35,665 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-03-20 12:13:35,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:35,668 INFO L225 Difference]: With dead ends: 1832 [2022-03-20 12:13:35,669 INFO L226 Difference]: Without dead ends: 1151 [2022-03-20 12:13:35,670 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:13:35,670 INFO L913 BasicCegarLoop]: 98 mSDtfsCounter, 108 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:35,671 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 280 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:13:35,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2022-03-20 12:13:35,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 802. [2022-03-20 12:13:35,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 797 states have (on average 1.4454203262233376) internal successors, (1152), 797 states have internal predecessors, (1152), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:35,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1156 transitions. [2022-03-20 12:13:35,720 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1156 transitions. Word has length 139 [2022-03-20 12:13:35,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:35,720 INFO L478 AbstractCegarLoop]: Abstraction has 802 states and 1156 transitions. [2022-03-20 12:13:35,720 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:35,720 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1156 transitions. [2022-03-20 12:13:35,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-03-20 12:13:35,722 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:35,722 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:13:35,722 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 12:13:35,722 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:35,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:35,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1297688107, now seen corresponding path program 1 times [2022-03-20 12:13:35,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:35,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703075696] [2022-03-20 12:13:35,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:35,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:35,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:35,945 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-20 12:13:35,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:35,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703075696] [2022-03-20 12:13:35,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703075696] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:35,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:35,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:13:35,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819598821] [2022-03-20 12:13:35,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:35,946 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:13:35,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:35,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:13:35,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:13:35,947 INFO L87 Difference]: Start difference. First operand 802 states and 1156 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:37,958 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:38,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:38,432 INFO L93 Difference]: Finished difference Result 1962 states and 2841 transitions. [2022-03-20 12:13:38,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:13:38,433 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 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 140 [2022-03-20 12:13:38,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:38,438 INFO L225 Difference]: With dead ends: 1962 [2022-03-20 12:13:38,438 INFO L226 Difference]: Without dead ends: 1176 [2022-03-20 12:13:38,440 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:13:38,441 INFO L913 BasicCegarLoop]: 97 mSDtfsCounter, 106 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:38,441 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:13:38,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2022-03-20 12:13:38,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 832. [2022-03-20 12:13:38,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 827 states have (on average 1.4594921402660217) internal successors, (1207), 827 states have internal predecessors, (1207), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:38,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1211 transitions. [2022-03-20 12:13:38,467 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1211 transitions. Word has length 140 [2022-03-20 12:13:38,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:38,468 INFO L478 AbstractCegarLoop]: Abstraction has 832 states and 1211 transitions. [2022-03-20 12:13:38,468 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:38,468 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1211 transitions. [2022-03-20 12:13:38,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-03-20 12:13:38,471 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:38,471 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:13:38,471 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 12:13:38,471 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:38,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:38,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1111935820, now seen corresponding path program 1 times [2022-03-20 12:13:38,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:38,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637438920] [2022-03-20 12:13:38,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:38,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:38,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:38,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:38,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:38,695 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 205 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-03-20 12:13:38,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:38,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637438920] [2022-03-20 12:13:38,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637438920] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:38,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:38,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:13:38,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624803522] [2022-03-20 12:13:38,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:38,697 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:13:38,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:38,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:13:38,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:13:38,698 INFO L87 Difference]: Start difference. First operand 832 states and 1211 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:40,711 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:41,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:41,147 INFO L93 Difference]: Finished difference Result 1992 states and 2891 transitions. [2022-03-20 12:13:41,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:13:41,148 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-03-20 12:13:41,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:41,152 INFO L225 Difference]: With dead ends: 1992 [2022-03-20 12:13:41,153 INFO L226 Difference]: Without dead ends: 1176 [2022-03-20 12:13:41,154 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:13:41,155 INFO L913 BasicCegarLoop]: 99 mSDtfsCounter, 106 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:41,155 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 284 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:13:41,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2022-03-20 12:13:41,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 832. [2022-03-20 12:13:41,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 827 states have (on average 1.4474002418379686) internal successors, (1197), 827 states have internal predecessors, (1197), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:41,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1201 transitions. [2022-03-20 12:13:41,183 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1201 transitions. Word has length 157 [2022-03-20 12:13:41,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:41,184 INFO L478 AbstractCegarLoop]: Abstraction has 832 states and 1201 transitions. [2022-03-20 12:13:41,184 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:41,184 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1201 transitions. [2022-03-20 12:13:41,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-03-20 12:13:41,186 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:41,186 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:13:41,186 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 12:13:41,187 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:41,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:41,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1029170936, now seen corresponding path program 1 times [2022-03-20 12:13:41,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:41,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426988998] [2022-03-20 12:13:41,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:41,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:41,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:41,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:41,397 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 209 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-03-20 12:13:41,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:41,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426988998] [2022-03-20 12:13:41,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426988998] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:41,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:41,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:13:41,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991472470] [2022-03-20 12:13:41,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:41,401 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:13:41,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:41,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:13:41,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:13:41,401 INFO L87 Difference]: Start difference. First operand 832 states and 1201 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:43,414 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:43,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:43,923 INFO L93 Difference]: Finished difference Result 1934 states and 2798 transitions. [2022-03-20 12:13:43,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:13:43,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-03-20 12:13:43,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:43,928 INFO L225 Difference]: With dead ends: 1934 [2022-03-20 12:13:43,928 INFO L226 Difference]: Without dead ends: 1118 [2022-03-20 12:13:43,930 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:13:43,930 INFO L913 BasicCegarLoop]: 222 mSDtfsCounter, 75 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:43,933 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 533 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:13:43,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2022-03-20 12:13:43,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 908. [2022-03-20 12:13:43,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 903 states have (on average 1.4407530454042081) internal successors, (1301), 903 states have internal predecessors, (1301), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:43,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1305 transitions. [2022-03-20 12:13:43,960 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1305 transitions. Word has length 158 [2022-03-20 12:13:43,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:43,960 INFO L478 AbstractCegarLoop]: Abstraction has 908 states and 1305 transitions. [2022-03-20 12:13:43,960 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:43,961 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1305 transitions. [2022-03-20 12:13:43,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-03-20 12:13:43,963 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:43,963 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:13:43,964 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 12:13:43,964 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:43,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:43,964 INFO L85 PathProgramCache]: Analyzing trace with hash -2062176669, now seen corresponding path program 1 times [2022-03-20 12:13:43,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:43,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989342112] [2022-03-20 12:13:43,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:43,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:44,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:44,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:44,220 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-03-20 12:13:44,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:44,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989342112] [2022-03-20 12:13:44,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989342112] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:44,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:44,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:13:44,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75211912] [2022-03-20 12:13:44,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:44,221 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:13:44,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:44,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:13:44,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:13:44,222 INFO L87 Difference]: Start difference. First operand 908 states and 1305 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:46,234 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:46,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:46,673 INFO L93 Difference]: Finished difference Result 1850 states and 2667 transitions. [2022-03-20 12:13:46,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:13:46,673 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 172 [2022-03-20 12:13:46,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:46,678 INFO L225 Difference]: With dead ends: 1850 [2022-03-20 12:13:46,678 INFO L226 Difference]: Without dead ends: 1118 [2022-03-20 12:13:46,680 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:13:46,680 INFO L913 BasicCegarLoop]: 221 mSDtfsCounter, 77 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:46,681 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 531 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:13:46,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2022-03-20 12:13:46,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 908. [2022-03-20 12:13:46,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 903 states have (on average 1.4363233665559247) internal successors, (1297), 903 states have internal predecessors, (1297), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:46,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1301 transitions. [2022-03-20 12:13:46,707 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1301 transitions. Word has length 172 [2022-03-20 12:13:46,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:46,708 INFO L478 AbstractCegarLoop]: Abstraction has 908 states and 1301 transitions. [2022-03-20 12:13:46,708 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:46,708 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1301 transitions. [2022-03-20 12:13:46,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-03-20 12:13:46,710 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:46,711 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:13:46,711 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 12:13:46,711 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:46,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:46,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1106588088, now seen corresponding path program 1 times [2022-03-20 12:13:46,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:46,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146412973] [2022-03-20 12:13:46,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:46,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:46,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:46,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:46,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:46,927 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-03-20 12:13:46,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:46,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146412973] [2022-03-20 12:13:46,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146412973] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:46,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:46,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:13:46,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21857287] [2022-03-20 12:13:46,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:46,929 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:13:46,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:46,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:13:46,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:13:46,930 INFO L87 Difference]: Start difference. First operand 908 states and 1301 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:48,940 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:49,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:49,391 INFO L93 Difference]: Finished difference Result 1838 states and 2647 transitions. [2022-03-20 12:13:49,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:13:49,391 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 173 [2022-03-20 12:13:49,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:49,396 INFO L225 Difference]: With dead ends: 1838 [2022-03-20 12:13:49,396 INFO L226 Difference]: Without dead ends: 1106 [2022-03-20 12:13:49,398 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:13:49,399 INFO L913 BasicCegarLoop]: 218 mSDtfsCounter, 73 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:49,400 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 525 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:13:49,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2022-03-20 12:13:49,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 908. [2022-03-20 12:13:49,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 903 states have (on average 1.4318936877076411) internal successors, (1293), 903 states have internal predecessors, (1293), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:49,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1297 transitions. [2022-03-20 12:13:49,457 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1297 transitions. Word has length 173 [2022-03-20 12:13:49,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:49,458 INFO L478 AbstractCegarLoop]: Abstraction has 908 states and 1297 transitions. [2022-03-20 12:13:49,458 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:49,458 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1297 transitions. [2022-03-20 12:13:49,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-03-20 12:13:49,461 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:49,462 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:13:49,462 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 12:13:49,462 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:49,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:49,463 INFO L85 PathProgramCache]: Analyzing trace with hash -180209632, now seen corresponding path program 1 times [2022-03-20 12:13:49,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:49,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149889286] [2022-03-20 12:13:49,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:49,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:49,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:49,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:49,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:49,747 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 214 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-03-20 12:13:49,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:49,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149889286] [2022-03-20 12:13:49,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149889286] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:49,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:49,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:13:49,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037477636] [2022-03-20 12:13:49,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:49,749 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:13:49,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:49,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:13:49,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:13:49,750 INFO L87 Difference]: Start difference. First operand 908 states and 1297 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:51,761 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:52,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:52,215 INFO L93 Difference]: Finished difference Result 2259 states and 3218 transitions. [2022-03-20 12:13:52,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:13:52,216 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 175 [2022-03-20 12:13:52,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:52,221 INFO L225 Difference]: With dead ends: 2259 [2022-03-20 12:13:52,221 INFO L226 Difference]: Without dead ends: 1367 [2022-03-20 12:13:52,223 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:13:52,224 INFO L913 BasicCegarLoop]: 99 mSDtfsCounter, 90 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:52,224 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 282 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 389 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:13:52,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2022-03-20 12:13:52,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1098. [2022-03-20 12:13:52,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1098 states, 1093 states have (on average 1.4574565416285452) internal successors, (1593), 1093 states have internal predecessors, (1593), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:52,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1597 transitions. [2022-03-20 12:13:52,259 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1597 transitions. Word has length 175 [2022-03-20 12:13:52,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:52,260 INFO L478 AbstractCegarLoop]: Abstraction has 1098 states and 1597 transitions. [2022-03-20 12:13:52,260 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:52,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1597 transitions. [2022-03-20 12:13:52,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-03-20 12:13:52,263 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:52,263 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:13:52,263 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 12:13:52,264 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:52,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:52,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1515897942, now seen corresponding path program 1 times [2022-03-20 12:13:52,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:52,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434920545] [2022-03-20 12:13:52,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:52,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:52,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:52,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:52,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:52,517 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 214 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-03-20 12:13:52,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:52,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434920545] [2022-03-20 12:13:52,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434920545] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:52,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:52,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:13:52,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538118152] [2022-03-20 12:13:52,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:52,518 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:13:52,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:52,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:13:52,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:13:52,521 INFO L87 Difference]: Start difference. First operand 1098 states and 1597 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:54,533 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:54,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:54,860 INFO L93 Difference]: Finished difference Result 2226 states and 3233 transitions. [2022-03-20 12:13:54,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:13:54,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 176 [2022-03-20 12:13:54,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:54,864 INFO L225 Difference]: With dead ends: 2226 [2022-03-20 12:13:54,864 INFO L226 Difference]: Without dead ends: 1144 [2022-03-20 12:13:54,866 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:13:54,867 INFO L913 BasicCegarLoop]: 191 mSDtfsCounter, 19 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:54,867 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 471 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 340 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:13:54,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2022-03-20 12:13:54,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 1118. [2022-03-20 12:13:54,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1118 states, 1113 states have (on average 1.4564240790655885) internal successors, (1621), 1113 states have internal predecessors, (1621), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:54,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1118 states to 1118 states and 1625 transitions. [2022-03-20 12:13:54,901 INFO L78 Accepts]: Start accepts. Automaton has 1118 states and 1625 transitions. Word has length 176 [2022-03-20 12:13:54,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:54,902 INFO L478 AbstractCegarLoop]: Abstraction has 1118 states and 1625 transitions. [2022-03-20 12:13:54,902 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:54,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1118 states and 1625 transitions. [2022-03-20 12:13:54,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-03-20 12:13:54,905 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:54,905 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:13:54,905 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 12:13:54,906 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:54,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:54,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1807907067, now seen corresponding path program 1 times [2022-03-20 12:13:54,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:54,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655858011] [2022-03-20 12:13:54,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:54,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:55,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:55,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:55,176 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 107 proven. 3 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-03-20 12:13:55,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:55,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655858011] [2022-03-20 12:13:55,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655858011] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 12:13:55,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010736018] [2022-03-20 12:13:55,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:55,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:13:55,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:13:55,179 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 12:13:55,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 12:13:56,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:56,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 1548 conjuncts, 13 conjunts are in the unsatisfiable core [2022-03-20 12:13:56,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 12:13:56,284 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-03-20 12:13:56,285 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 143 [2022-03-20 12:13:56,296 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 63 [2022-03-20 12:13:56,304 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-20 12:13:56,314 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-20 12:13:56,500 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-03-20 12:13:56,656 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-03-20 12:13:56,667 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-03-20 12:13:56,703 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 12:13:56,703 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 12:13:56,871 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:13:56,871 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 12:13:56,938 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 12:13:56,956 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 102 proven. 70 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2022-03-20 12:13:56,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 12:13:57,246 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2022-03-20 12:13:57,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010736018] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 12:13:57,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 12:13:57,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 5] total 13 [2022-03-20 12:13:57,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559700237] [2022-03-20 12:13:57,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:57,248 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:13:57,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:57,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:13:57,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-03-20 12:13:57,249 INFO L87 Difference]: Start difference. First operand 1118 states and 1625 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:59,258 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:59,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:59,542 INFO L93 Difference]: Finished difference Result 2668 states and 3858 transitions. [2022-03-20 12:13:59,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:13:59,547 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 180 [2022-03-20 12:13:59,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:59,554 INFO L225 Difference]: With dead ends: 2668 [2022-03-20 12:13:59,554 INFO L226 Difference]: Without dead ends: 1566 [2022-03-20 12:13:59,557 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-03-20 12:13:59,558 INFO L913 BasicCegarLoop]: 111 mSDtfsCounter, 92 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:59,558 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 310 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 214 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 12:13:59,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1566 states. [2022-03-20 12:13:59,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1566 to 1238. [2022-03-20 12:13:59,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1233 states have (on average 1.4525547445255473) internal successors, (1791), 1233 states have internal predecessors, (1791), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:59,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1795 transitions. [2022-03-20 12:13:59,603 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1795 transitions. Word has length 180 [2022-03-20 12:13:59,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:59,604 INFO L478 AbstractCegarLoop]: Abstraction has 1238 states and 1795 transitions. [2022-03-20 12:13:59,604 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:59,604 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1795 transitions. [2022-03-20 12:13:59,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-03-20 12:13:59,606 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:59,606 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 5, 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] [2022-03-20 12:13:59,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-20 12:13:59,819 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-03-20 12:13:59,820 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:59,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:59,820 INFO L85 PathProgramCache]: Analyzing trace with hash -209595120, now seen corresponding path program 1 times [2022-03-20 12:13:59,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:59,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784895672] [2022-03-20 12:13:59,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:59,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:59,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:00,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:14:00,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:00,112 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2022-03-20 12:14:00,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:14:00,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784895672] [2022-03-20 12:14:00,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784895672] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:14:00,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:14:00,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:14:00,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092482329] [2022-03-20 12:14:00,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:14:00,114 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:14:00,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:14:00,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:14:00,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:14:00,115 INFO L87 Difference]: Start difference. First operand 1238 states and 1795 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:02,128 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:02,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:14:02,498 INFO L93 Difference]: Finished difference Result 2619 states and 3782 transitions. [2022-03-20 12:14:02,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:14:02,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 181 [2022-03-20 12:14:02,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:14:02,504 INFO L225 Difference]: With dead ends: 2619 [2022-03-20 12:14:02,505 INFO L226 Difference]: Without dead ends: 1397 [2022-03-20 12:14:02,507 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:14:02,508 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 22 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:14:02,508 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 474 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 350 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:14:02,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1397 states. [2022-03-20 12:14:02,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1397 to 1348. [2022-03-20 12:14:02,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1348 states, 1343 states have (on average 1.445271779597915) internal successors, (1941), 1343 states have internal predecessors, (1941), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:02,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 1945 transitions. [2022-03-20 12:14:02,549 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 1945 transitions. Word has length 181 [2022-03-20 12:14:02,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:14:02,550 INFO L478 AbstractCegarLoop]: Abstraction has 1348 states and 1945 transitions. [2022-03-20 12:14:02,550 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:02,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 1945 transitions. [2022-03-20 12:14:02,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-03-20 12:14:02,553 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:14:02,553 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 5, 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] [2022-03-20 12:14:02,553 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 12:14:02,553 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:14:02,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:14:02,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1810219865, now seen corresponding path program 1 times [2022-03-20 12:14:02,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:14:02,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64998862] [2022-03-20 12:14:02,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:14:02,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:14:02,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:02,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:14:02,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:02,812 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 231 proven. 8 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-03-20 12:14:02,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:14:02,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64998862] [2022-03-20 12:14:02,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64998862] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 12:14:02,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754412045] [2022-03-20 12:14:02,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:14:02,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:14:02,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:14:02,814 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 12:14:02,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-20 12:14:03,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:03,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 1621 conjuncts, 23 conjunts are in the unsatisfiable core [2022-03-20 12:14:03,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 12:14:03,920 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-03-20 12:14:03,921 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 143 [2022-03-20 12:14:03,926 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 63 [2022-03-20 12:14:03,932 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-20 12:14:03,941 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-20 12:14:04,111 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-03-20 12:14:04,128 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2022-03-20 12:14:04,132 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-03-20 12:14:04,174 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 12:14:04,174 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 12:14:04,274 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-20 12:14:04,383 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:14:04,384 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 12:14:04,428 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 12:14:04,471 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 224 proven. 78 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2022-03-20 12:14:04,471 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 12:14:04,685 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 230 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2022-03-20 12:14:04,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754412045] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 12:14:04,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 12:14:04,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-03-20 12:14:04,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811944509] [2022-03-20 12:14:04,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:14:04,687 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:14:04,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:14:04,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:14:04,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-20 12:14:04,688 INFO L87 Difference]: Start difference. First operand 1348 states and 1945 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:06,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:06,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:14:06,664 INFO L93 Difference]: Finished difference Result 3020 states and 4354 transitions. [2022-03-20 12:14:06,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:14:06,665 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 199 [2022-03-20 12:14:06,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:14:06,670 INFO L225 Difference]: With dead ends: 3020 [2022-03-20 12:14:06,670 INFO L226 Difference]: Without dead ends: 1688 [2022-03-20 12:14:06,673 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-20 12:14:06,674 INFO L913 BasicCegarLoop]: 103 mSDtfsCounter, 108 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-20 12:14:06,674 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 288 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-20 12:14:06,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1688 states. [2022-03-20 12:14:06,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1688 to 1348. [2022-03-20 12:14:06,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1348 states, 1343 states have (on average 1.426656738644825) internal successors, (1916), 1343 states have internal predecessors, (1916), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:06,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 1920 transitions. [2022-03-20 12:14:06,718 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 1920 transitions. Word has length 199 [2022-03-20 12:14:06,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:14:06,718 INFO L478 AbstractCegarLoop]: Abstraction has 1348 states and 1920 transitions. [2022-03-20 12:14:06,718 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:06,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 1920 transitions. [2022-03-20 12:14:06,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-03-20 12:14:06,721 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:14:06,721 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:14:06,761 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-20 12:14:06,935 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-03-20 12:14:06,936 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:14:06,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:14:06,936 INFO L85 PathProgramCache]: Analyzing trace with hash 614506545, now seen corresponding path program 1 times [2022-03-20 12:14:06,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:14:06,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190088922] [2022-03-20 12:14:06,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:14:06,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:14:07,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:07,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:14:07,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:07,191 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 414 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-03-20 12:14:07,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:14:07,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190088922] [2022-03-20 12:14:07,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190088922] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:14:07,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:14:07,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:14:07,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879656583] [2022-03-20 12:14:07,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:14:07,192 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:14:07,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:14:07,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:14:07,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:14:07,193 INFO L87 Difference]: Start difference. First operand 1348 states and 1920 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:09,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:09,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:14:09,717 INFO L93 Difference]: Finished difference Result 2787 states and 3973 transitions. [2022-03-20 12:14:09,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:14:09,717 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 215 [2022-03-20 12:14:09,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:14:09,724 INFO L225 Difference]: With dead ends: 2787 [2022-03-20 12:14:09,724 INFO L226 Difference]: Without dead ends: 1704 [2022-03-20 12:14:09,727 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:14:09,727 INFO L913 BasicCegarLoop]: 220 mSDtfsCounter, 76 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:14:09,728 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 530 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:14:09,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1704 states. [2022-03-20 12:14:09,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1704 to 1428. [2022-03-20 12:14:09,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1423 states have (on average 1.4202389318341533) internal successors, (2021), 1423 states have internal predecessors, (2021), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:09,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 2025 transitions. [2022-03-20 12:14:09,772 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 2025 transitions. Word has length 215 [2022-03-20 12:14:09,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:14:09,773 INFO L478 AbstractCegarLoop]: Abstraction has 1428 states and 2025 transitions. [2022-03-20 12:14:09,773 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:09,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 2025 transitions. [2022-03-20 12:14:09,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-03-20 12:14:09,776 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:14:09,776 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:14:09,777 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 12:14:09,777 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:14:09,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:14:09,777 INFO L85 PathProgramCache]: Analyzing trace with hash 792566790, now seen corresponding path program 1 times [2022-03-20 12:14:09,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:14:09,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432214301] [2022-03-20 12:14:09,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:14:09,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:14:09,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:10,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:14:10,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:10,044 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-03-20 12:14:10,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:14:10,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432214301] [2022-03-20 12:14:10,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432214301] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:14:10,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:14:10,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:14:10,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268432132] [2022-03-20 12:14:10,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:14:10,045 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:14:10,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:14:10,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:14:10,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:14:10,046 INFO L87 Difference]: Start difference. First operand 1428 states and 2025 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:12,058 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:12,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:14:12,538 INFO L93 Difference]: Finished difference Result 2836 states and 4036 transitions. [2022-03-20 12:14:12,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:14:12,539 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 216 [2022-03-20 12:14:12,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:14:12,545 INFO L225 Difference]: With dead ends: 2836 [2022-03-20 12:14:12,546 INFO L226 Difference]: Without dead ends: 1689 [2022-03-20 12:14:12,549 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:14:12,549 INFO L913 BasicCegarLoop]: 217 mSDtfsCounter, 72 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:14:12,549 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 524 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:14:12,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1689 states. [2022-03-20 12:14:12,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1689 to 1433. [2022-03-20 12:14:12,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1433 states, 1428 states have (on average 1.4187675070028012) internal successors, (2026), 1428 states have internal predecessors, (2026), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:12,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 2030 transitions. [2022-03-20 12:14:12,591 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 2030 transitions. Word has length 216 [2022-03-20 12:14:12,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:14:12,592 INFO L478 AbstractCegarLoop]: Abstraction has 1433 states and 2030 transitions. [2022-03-20 12:14:12,592 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:12,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 2030 transitions. [2022-03-20 12:14:12,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-03-20 12:14:12,595 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:14:12,595 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:14:12,595 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 12:14:12,596 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:14:12,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:14:12,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1390782110, now seen corresponding path program 1 times [2022-03-20 12:14:12,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:14:12,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998667894] [2022-03-20 12:14:12,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:14:12,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:14:12,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:12,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:14:12,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:12,842 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 366 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-03-20 12:14:12,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:14:12,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998667894] [2022-03-20 12:14:12,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998667894] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:14:12,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:14:12,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:14:12,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864415093] [2022-03-20 12:14:12,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:14:12,843 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:14:12,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:14:12,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:14:12,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:14:12,845 INFO L87 Difference]: Start difference. First operand 1433 states and 2030 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:14,857 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:15,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:14:15,224 INFO L93 Difference]: Finished difference Result 2941 states and 4162 transitions. [2022-03-20 12:14:15,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:14:15,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 219 [2022-03-20 12:14:15,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:14:15,229 INFO L225 Difference]: With dead ends: 2941 [2022-03-20 12:14:15,229 INFO L226 Difference]: Without dead ends: 1524 [2022-03-20 12:14:15,232 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:14:15,232 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 23 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:14:15,233 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 478 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 360 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:14:15,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1524 states. [2022-03-20 12:14:15,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1524 to 1478. [2022-03-20 12:14:15,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 1473 states have (on average 1.419551934826884) internal successors, (2091), 1473 states have internal predecessors, (2091), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:15,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 2095 transitions. [2022-03-20 12:14:15,302 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 2095 transitions. Word has length 219 [2022-03-20 12:14:15,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:14:15,302 INFO L478 AbstractCegarLoop]: Abstraction has 1478 states and 2095 transitions. [2022-03-20 12:14:15,302 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:15,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 2095 transitions. [2022-03-20 12:14:15,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-03-20 12:14:15,306 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:14:15,306 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:14:15,306 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-20 12:14:15,307 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:14:15,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:14:15,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1029021668, now seen corresponding path program 1 times [2022-03-20 12:14:15,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:14:15,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762550650] [2022-03-20 12:14:15,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:14:15,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:14:15,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:15,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:14:15,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:15,565 INFO L134 CoverageAnalysis]: Checked inductivity of 798 backedges. 489 proven. 0 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-03-20 12:14:15,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:14:15,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762550650] [2022-03-20 12:14:15,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762550650] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:14:15,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:14:15,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:14:15,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73218944] [2022-03-20 12:14:15,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:14:15,568 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:14:15,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:14:15,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:14:15,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:14:15,568 INFO L87 Difference]: Start difference. First operand 1478 states and 2095 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:17,582 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:18,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:14:18,069 INFO L93 Difference]: Finished difference Result 3026 states and 4293 transitions. [2022-03-20 12:14:18,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:14:18,069 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 240 [2022-03-20 12:14:18,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:14:18,076 INFO L225 Difference]: With dead ends: 3026 [2022-03-20 12:14:18,076 INFO L226 Difference]: Without dead ends: 1839 [2022-03-20 12:14:18,080 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:14:18,080 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 76 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:14:18,080 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 528 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:14:18,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1839 states. [2022-03-20 12:14:18,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1839 to 1563. [2022-03-20 12:14:18,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1558 states have (on average 1.4127086007702183) internal successors, (2201), 1558 states have internal predecessors, (2201), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:18,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2205 transitions. [2022-03-20 12:14:18,125 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2205 transitions. Word has length 240 [2022-03-20 12:14:18,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:14:18,126 INFO L478 AbstractCegarLoop]: Abstraction has 1563 states and 2205 transitions. [2022-03-20 12:14:18,126 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:18,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2205 transitions. [2022-03-20 12:14:18,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-03-20 12:14:18,129 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:14:18,129 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:14:18,129 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-20 12:14:18,130 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:14:18,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:14:18,130 INFO L85 PathProgramCache]: Analyzing trace with hash -513501219, now seen corresponding path program 1 times [2022-03-20 12:14:18,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:14:18,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329030547] [2022-03-20 12:14:18,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:14:18,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:14:18,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:18,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:14:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:18,423 INFO L134 CoverageAnalysis]: Checked inductivity of 798 backedges. 489 proven. 0 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-03-20 12:14:18,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:14:18,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329030547] [2022-03-20 12:14:18,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329030547] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:14:18,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:14:18,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:14:18,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549173662] [2022-03-20 12:14:18,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:14:18,424 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:14:18,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:14:18,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:14:18,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:14:18,425 INFO L87 Difference]: Start difference. First operand 1563 states and 2205 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:20,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:20,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:14:20,941 INFO L93 Difference]: Finished difference Result 3338 states and 4742 transitions. [2022-03-20 12:14:20,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:14:20,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 240 [2022-03-20 12:14:20,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:14:20,947 INFO L225 Difference]: With dead ends: 3338 [2022-03-20 12:14:20,947 INFO L226 Difference]: Without dead ends: 2083 [2022-03-20 12:14:20,950 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:14:20,951 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 110 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 33 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:14:20,951 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 476 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:14:20,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2083 states. [2022-03-20 12:14:20,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2083 to 1558. [2022-03-20 12:14:20,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1553 states have (on average 1.3979394719896974) internal successors, (2171), 1553 states have internal predecessors, (2171), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:20,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 2175 transitions. [2022-03-20 12:14:20,998 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 2175 transitions. Word has length 240 [2022-03-20 12:14:20,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:14:20,999 INFO L478 AbstractCegarLoop]: Abstraction has 1558 states and 2175 transitions. [2022-03-20 12:14:20,999 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:20,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 2175 transitions. [2022-03-20 12:14:21,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-03-20 12:14:21,002 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:14:21,002 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:14:21,002 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-20 12:14:21,002 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:14:21,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:14:21,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1382799739, now seen corresponding path program 1 times [2022-03-20 12:14:21,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:14:21,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538777569] [2022-03-20 12:14:21,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:14:21,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:14:21,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:21,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:14:21,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:21,281 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 498 proven. 0 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-03-20 12:14:21,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:14:21,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538777569] [2022-03-20 12:14:21,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538777569] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:14:21,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:14:21,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:14:21,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399200747] [2022-03-20 12:14:21,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:14:21,283 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:14:21,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:14:21,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:14:21,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:14:21,284 INFO L87 Difference]: Start difference. First operand 1558 states and 2175 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:23,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:23,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:14:23,824 INFO L93 Difference]: Finished difference Result 2888 states and 4063 transitions. [2022-03-20 12:14:23,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:14:23,825 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 241 [2022-03-20 12:14:23,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:14:23,830 INFO L225 Difference]: With dead ends: 2888 [2022-03-20 12:14:23,830 INFO L226 Difference]: Without dead ends: 1637 [2022-03-20 12:14:23,833 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:14:23,833 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 106 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 32 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:14:23,834 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 474 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 480 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:14:23,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1637 states. [2022-03-20 12:14:23,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1637 to 1299. [2022-03-20 12:14:23,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1299 states, 1294 states have (on average 1.3763523956723338) internal successors, (1781), 1294 states have internal predecessors, (1781), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:23,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1785 transitions. [2022-03-20 12:14:23,880 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1785 transitions. Word has length 241 [2022-03-20 12:14:23,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:14:23,881 INFO L478 AbstractCegarLoop]: Abstraction has 1299 states and 1785 transitions. [2022-03-20 12:14:23,881 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:23,881 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1785 transitions. [2022-03-20 12:14:23,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-03-20 12:14:23,884 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:14:23,884 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:14:23,884 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-20 12:14:23,884 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:14:23,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:14:23,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1424455945, now seen corresponding path program 1 times [2022-03-20 12:14:23,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:14:23,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130685496] [2022-03-20 12:14:23,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:14:23,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:14:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:24,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:14:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:24,189 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 438 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-03-20 12:14:24,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:14:24,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130685496] [2022-03-20 12:14:24,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130685496] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:14:24,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:14:24,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:14:24,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209303930] [2022-03-20 12:14:24,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:14:24,191 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:14:24,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:14:24,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:14:24,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:14:24,191 INFO L87 Difference]: Start difference. First operand 1299 states and 1785 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:26,204 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:26,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:14:26,565 INFO L93 Difference]: Finished difference Result 2744 states and 3765 transitions. [2022-03-20 12:14:26,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:14:26,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 244 [2022-03-20 12:14:26,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:14:26,569 INFO L225 Difference]: With dead ends: 2744 [2022-03-20 12:14:26,569 INFO L226 Difference]: Without dead ends: 1461 [2022-03-20 12:14:26,572 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:14:26,572 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 26 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:14:26,573 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 482 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 375 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:14:26,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2022-03-20 12:14:26,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1415. [2022-03-20 12:14:26,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1415 states, 1410 states have (on average 1.376595744680851) internal successors, (1941), 1410 states have internal predecessors, (1941), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:26,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 1945 transitions. [2022-03-20 12:14:26,613 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 1945 transitions. Word has length 244 [2022-03-20 12:14:26,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:14:26,613 INFO L478 AbstractCegarLoop]: Abstraction has 1415 states and 1945 transitions. [2022-03-20 12:14:26,613 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:26,614 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 1945 transitions. [2022-03-20 12:14:26,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-03-20 12:14:26,616 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:14:26,617 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:14:26,617 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-20 12:14:26,617 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:14:26,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:14:26,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1739724726, now seen corresponding path program 1 times [2022-03-20 12:14:26,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:14:26,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986648343] [2022-03-20 12:14:26,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:14:26,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:14:26,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:26,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:14:26,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:26,850 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 438 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-03-20 12:14:26,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:14:26,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986648343] [2022-03-20 12:14:26,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986648343] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:14:26,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:14:26,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:14:26,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172810572] [2022-03-20 12:14:26,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:14:26,852 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:14:26,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:14:26,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:14:26,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:14:26,852 INFO L87 Difference]: Start difference. First operand 1415 states and 1945 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:28,864 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:14:29,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:14:29,256 INFO L93 Difference]: Finished difference Result 3000 states and 4129 transitions. [2022-03-20 12:14:29,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:14:29,257 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 244 [2022-03-20 12:14:29,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:14:29,260 INFO L225 Difference]: With dead ends: 3000 [2022-03-20 12:14:29,260 INFO L226 Difference]: Without dead ends: 1601 [2022-03-20 12:14:29,262 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:14:29,263 INFO L913 BasicCegarLoop]: 202 mSDtfsCounter, 32 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:14:29,263 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 494 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 402 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:14:29,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2022-03-20 12:14:29,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1543. [2022-03-20 12:14:29,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1538 states have (on average 1.3842652795838752) internal successors, (2129), 1538 states have internal predecessors, (2129), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:29,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2133 transitions. [2022-03-20 12:14:29,305 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2133 transitions. Word has length 244 [2022-03-20 12:14:29,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:14:29,305 INFO L478 AbstractCegarLoop]: Abstraction has 1543 states and 2133 transitions. [2022-03-20 12:14:29,305 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:14:29,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2133 transitions. [2022-03-20 12:14:29,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-03-20 12:14:29,308 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:14:29,309 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:14:29,309 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-20 12:14:29,309 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:14:29,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:14:29,309 INFO L85 PathProgramCache]: Analyzing trace with hash 556149849, now seen corresponding path program 1 times [2022-03-20 12:14:29,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:14:29,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632016995] [2022-03-20 12:14:29,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:14:29,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:14:30,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:31,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:14:31,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:31,942 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 303 proven. 264 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2022-03-20 12:14:31,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:14:31,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632016995] [2022-03-20 12:14:31,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632016995] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 12:14:31,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579463821] [2022-03-20 12:14:31,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:14:31,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:14:31,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:14:31,945 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 12:14:31,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-20 12:14:33,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:14:33,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 1939 conjuncts, 386 conjunts are in the unsatisfiable core [2022-03-20 12:14:33,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 12:14:34,236 INFO L190 IndexEqualityManager]: detected not equals via solver