/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.01.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 12:11:46,540 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 12:11:46,541 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 12:11:46,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 12:11:46,586 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 12:11:46,587 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 12:11:46,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 12:11:46,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 12:11:46,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 12:11:46,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 12:11:46,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 12:11:46,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 12:11:46,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 12:11:46,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 12:11:46,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 12:11:46,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 12:11:46,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 12:11:46,611 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 12:11:46,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 12:11:46,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 12:11:46,614 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 12:11:46,614 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 12:11:46,615 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 12:11:46,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 12:11:46,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 12:11:46,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 12:11:46,618 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 12:11:46,619 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 12:11:46,619 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 12:11:46,620 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 12:11:46,620 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-20 12:11:46,620 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-20 12:11:46,621 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-20 12:11:46,621 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-20 12:11:46,622 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-20 12:11:46,622 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-20 12:11:46,622 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-20 12:11:46,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-20 12:11:46,623 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-20 12:11:46,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 12:11:46,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 12:11:46,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 12:11:46,628 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 12:11:46,658 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 12:11:46,658 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 12:11:46,663 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-20 12:11:46,663 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-20 12:11:46,664 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-20 12:11:46,664 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-20 12:11:46,664 INFO L138 SettingsManager]: * Use SBE=true [2022-03-20 12:11:46,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 12:11:46,664 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 12:11:46,664 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 12:11:46,665 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 12:11:46,665 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 12:11:46,665 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 12:11:46,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 12:11:46,665 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 12:11:46,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 12:11:46,665 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 12:11:46,665 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 12:11:46,665 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 12:11:46,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 12:11:46,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 12:11:46,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-20 12:11:46,666 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-20 12:11:46,666 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 12:11:46,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-20 12:11:46,666 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 12:11:46,666 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-03-20 12:11:46,666 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-03-20 12:11:46,667 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-20 12:11:46,667 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 12:11:46,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 12:11:46,889 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 12:11:46,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 12:11:46,893 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 12:11:46,894 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 12:11:46,896 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-1.c [2022-03-20 12:11:46,944 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9acd7eed9/811cf846733d4526a5497097ec29c56f/FLAG99000212f [2022-03-20 12:11:47,414 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 12:11:47,415 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-1.c [2022-03-20 12:11:47,433 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9acd7eed9/811cf846733d4526a5497097ec29c56f/FLAG99000212f [2022-03-20 12:11:47,447 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9acd7eed9/811cf846733d4526a5497097ec29c56f [2022-03-20 12:11:47,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 12:11:47,452 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-20 12:11:47,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 12:11:47,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 12:11:47,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 12:11:47,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 12:11:47" (1/1) ... [2022-03-20 12:11:47,460 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54fd5822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:11:47, skipping insertion in model container [2022-03-20 12:11:47,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 12:11:47" (1/1) ... [2022-03-20 12:11:47,467 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 12:11:47,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 12:11:47,891 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.01.i.cil-1.c[65523,65536] [2022-03-20 12:11:47,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 12:11:47,931 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 12:11:48,003 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.01.i.cil-1.c[65523,65536] [2022-03-20 12:11:48,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 12:11:48,027 INFO L208 MainTranslator]: Completed translation [2022-03-20 12:11:48,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:11:48 WrapperNode [2022-03-20 12:11:48,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 12:11:48,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 12:11:48,031 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 12:11:48,031 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 12:11:48,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:11:48" (1/1) ... [2022-03-20 12:11:48,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:11:48" (1/1) ... [2022-03-20 12:11:48,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:11:48" (1/1) ... [2022-03-20 12:11:48,069 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:11:48" (1/1) ... [2022-03-20 12:11:48,114 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:11:48" (1/1) ... [2022-03-20 12:11:48,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:11:48" (1/1) ... [2022-03-20 12:11:48,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:11:48" (1/1) ... [2022-03-20 12:11:48,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 12:11:48,140 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 12:11:48,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 12:11:48,141 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 12:11:48,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:11:48" (1/1) ... [2022-03-20 12:11:48,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 12:11:48,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:11:48,171 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 12:11:48,190 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 12:11:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 12:11:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 12:11:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 12:11:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2022-03-20 12:11:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2022-03-20 12:11:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 12:11:48,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-03-20 12:11:48,209 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 12:11:48,210 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 12:11:48,210 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 12:11:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 12:11:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 12:11:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 12:11:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 12:11:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 12:11:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 12:11:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 12:11:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 12:11:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 12:11:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 12:11:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2022-03-20 12:11:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 12:11:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-03-20 12:11:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2022-03-20 12:11:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 12:11:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 12:11:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 12:11:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 12:11:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 12:11:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 12:11:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 12:11:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 12:11:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 12:11:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 12:11:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 12:11:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 12:11:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 12:11:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 12:11:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 12:11:48,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 12:11:48,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 12:11:48,388 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 12:11:48,389 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 12:11:50,065 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 12:11:50,458 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-03-20 12:11:50,459 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-03-20 12:11:50,471 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 12:11:50,477 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 12:11:50,478 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 12:11:50,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 12:11:50 BoogieIcfgContainer [2022-03-20 12:11:50,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 12:11:50,481 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-20 12:11:50,481 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-20 12:11:50,482 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-20 12:11:50,485 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 12:11:50" (1/1) ... [2022-03-20 12:11:50,487 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-03-20 12:11:50,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 12:11:50 BasicIcfg [2022-03-20 12:11:50,525 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-20 12:11:50,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 12:11:50,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 12:11:50,530 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 12:11:50,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 12:11:47" (1/4) ... [2022-03-20 12:11:50,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a25dc5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 12:11:50, skipping insertion in model container [2022-03-20 12:11:50,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:11:48" (2/4) ... [2022-03-20 12:11:50,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a25dc5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 12:11:50, skipping insertion in model container [2022-03-20 12:11:50,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 12:11:50" (3/4) ... [2022-03-20 12:11:50,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a25dc5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 12:11:50, skipping insertion in model container [2022-03-20 12:11:50,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 12:11:50" (4/4) ... [2022-03-20 12:11:50,533 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.01.i.cil-1.cqvasr [2022-03-20 12:11:50,537 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-20 12:11:50,538 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 12:11:50,591 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 12:11:50,600 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 12:11:50,600 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 12:11:50,640 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 132 states have (on average 1.6742424242424243) internal successors, (221), 133 states have internal predecessors, (221), 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 12:11:50,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-03-20 12:11:50,654 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:11:50,655 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 12:11:50,655 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:11:50,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:11:50,660 INFO L85 PathProgramCache]: Analyzing trace with hash -106935299, now seen corresponding path program 1 times [2022-03-20 12:11:50,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:11:50,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704275149] [2022-03-20 12:11:50,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:11:50,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:11:51,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:11:51,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:11:51,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:11:51,307 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 12:11:51,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:11:51,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704275149] [2022-03-20 12:11:51,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704275149] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:11:51,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:11:51,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:11:51,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354023228] [2022-03-20 12:11:51,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:11:51,314 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:11:51,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:11:51,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:11:51,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:11:51,338 INFO L87 Difference]: Start difference. First operand has 140 states, 132 states have (on average 1.6742424242424243) internal successors, (221), 133 states have internal predecessors, (221), 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 12:11:53,381 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 12:11:53,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:11:53,859 INFO L93 Difference]: Finished difference Result 271 states and 444 transitions. [2022-03-20 12:11:53,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:11:53,862 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 12:11:53,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:11:53,868 INFO L225 Difference]: With dead ends: 271 [2022-03-20 12:11:53,868 INFO L226 Difference]: Without dead ends: 124 [2022-03-20 12:11:53,870 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 12:11:53,872 INFO L913 BasicCegarLoop]: 214 mSDtfsCounter, 7 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:11:53,873 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 558 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 321 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:11:53,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-03-20 12:11:53,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 123. [2022-03-20 12:11:53,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 118 states have (on average 1.4915254237288136) internal successors, (176), 118 states have internal predecessors, (176), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:11:53,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 180 transitions. [2022-03-20 12:11:53,906 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 180 transitions. Word has length 30 [2022-03-20 12:11:53,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:11:53,906 INFO L478 AbstractCegarLoop]: Abstraction has 123 states and 180 transitions. [2022-03-20 12:11:53,944 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 12:11:53,944 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 180 transitions. [2022-03-20 12:11:53,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-03-20 12:11:53,945 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:11:53,946 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:11:53,946 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 12:11:53,946 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:11:53,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:11:53,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1091565072, now seen corresponding path program 1 times [2022-03-20 12:11:53,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:11:53,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120268437] [2022-03-20 12:11:53,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:11:53,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:11:54,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:11:54,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:11:54,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:11:54,262 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 12:11:54,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:11:54,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120268437] [2022-03-20 12:11:54,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120268437] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:11:54,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:11:54,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:11:54,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131491253] [2022-03-20 12:11:54,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:11:54,264 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:11:54,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:11:54,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:11:54,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:11:54,265 INFO L87 Difference]: Start difference. First operand 123 states and 180 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:11:56,277 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 12:11:56,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:11:56,586 INFO L93 Difference]: Finished difference Result 333 states and 496 transitions. [2022-03-20 12:11:56,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:11:56,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2022-03-20 12:11:56,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:11:56,590 INFO L225 Difference]: With dead ends: 333 [2022-03-20 12:11:56,590 INFO L226 Difference]: Without dead ends: 226 [2022-03-20 12:11:56,591 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 12:11:56,592 INFO L913 BasicCegarLoop]: 168 mSDtfsCounter, 125 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:11:56,592 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 323 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 192 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:11:56,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-03-20 12:11:56,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2022-03-20 12:11:56,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 221 states have (on average 1.4751131221719458) internal successors, (326), 221 states have internal predecessors, (326), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:11:56,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 330 transitions. [2022-03-20 12:11:56,618 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 330 transitions. Word has length 45 [2022-03-20 12:11:56,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:11:56,618 INFO L478 AbstractCegarLoop]: Abstraction has 226 states and 330 transitions. [2022-03-20 12:11:56,618 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:11:56,619 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 330 transitions. [2022-03-20 12:11:56,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-03-20 12:11:56,620 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:11:56,620 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, 1] [2022-03-20 12:11:56,620 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 12:11:56,620 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:11:56,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:11:56,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1300196515, now seen corresponding path program 1 times [2022-03-20 12:11:56,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:11:56,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045318396] [2022-03-20 12:11:56,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:11:56,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:11:56,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:11:56,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:11:56,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:11:56,893 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 12:11:56,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:11:56,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045318396] [2022-03-20 12:11:56,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045318396] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:11:56,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:11:56,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:11:56,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974921638] [2022-03-20 12:11:56,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:11:56,894 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:11:56,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:11:56,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:11:56,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:11:56,895 INFO L87 Difference]: Start difference. First operand 226 states and 330 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:11:58,907 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 12:11:59,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:11:59,328 INFO L93 Difference]: Finished difference Result 368 states and 543 transitions. [2022-03-20 12:11:59,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:11:59,329 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 60 [2022-03-20 12:11:59,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:11:59,331 INFO L225 Difference]: With dead ends: 368 [2022-03-20 12:11:59,331 INFO L226 Difference]: Without dead ends: 261 [2022-03-20 12:11:59,332 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 12:11:59,333 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 31 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:11:59,334 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 490 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:11:59,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-03-20 12:11:59,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 244. [2022-03-20 12:11:59,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 239 states have (on average 1.4895397489539748) internal successors, (356), 239 states have internal predecessors, (356), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:11:59,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 360 transitions. [2022-03-20 12:11:59,391 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 360 transitions. Word has length 60 [2022-03-20 12:11:59,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:11:59,392 INFO L478 AbstractCegarLoop]: Abstraction has 244 states and 360 transitions. [2022-03-20 12:11:59,392 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:11:59,392 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 360 transitions. [2022-03-20 12:11:59,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-20 12:11:59,394 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:11:59,394 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:11:59,394 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 12:11:59,395 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:11:59,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:11:59,395 INFO L85 PathProgramCache]: Analyzing trace with hash 894178960, now seen corresponding path program 2 times [2022-03-20 12:11:59,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:11:59,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539453992] [2022-03-20 12:11:59,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:11:59,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:11:59,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:11:59,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:11:59,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:11:59,590 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 12:11:59,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:11:59,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539453992] [2022-03-20 12:11:59,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539453992] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:11:59,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:11:59,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:11:59,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952313832] [2022-03-20 12:11:59,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:11:59,592 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:11:59,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:11:59,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:11:59,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:11:59,593 INFO L87 Difference]: Start difference. First operand 244 states and 360 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 12:12:01,605 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 12:12:02,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:12:02,088 INFO L93 Difference]: Finished difference Result 655 states and 976 transitions. [2022-03-20 12:12:02,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:12:02,089 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 12:12:02,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:12:02,091 INFO L225 Difference]: With dead ends: 655 [2022-03-20 12:12:02,091 INFO L226 Difference]: Without dead ends: 427 [2022-03-20 12:12:02,093 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 12:12:02,093 INFO L913 BasicCegarLoop]: 106 mSDtfsCounter, 113 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:12:02,094 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 302 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 381 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:12:02,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2022-03-20 12:12:02,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 266. [2022-03-20 12:12:02,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 261 states have (on average 1.4827586206896552) internal successors, (387), 261 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 12:12:02,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 391 transitions. [2022-03-20 12:12:02,109 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 391 transitions. Word has length 75 [2022-03-20 12:12:02,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:12:02,110 INFO L478 AbstractCegarLoop]: Abstraction has 266 states and 391 transitions. [2022-03-20 12:12:02,110 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 12:12:02,110 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 391 transitions. [2022-03-20 12:12:02,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-20 12:12:02,112 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:12:02,112 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 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] [2022-03-20 12:12:02,113 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 12:12:02,113 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:12:02,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:12:02,113 INFO L85 PathProgramCache]: Analyzing trace with hash -765124944, now seen corresponding path program 1 times [2022-03-20 12:12:02,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:12:02,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495394411] [2022-03-20 12:12:02,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:12:02,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:12:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:02,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:12:02,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:02,309 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 12:12:02,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:12:02,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495394411] [2022-03-20 12:12:02,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495394411] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:12:02,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:12:02,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:12:02,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664502093] [2022-03-20 12:12:02,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:12:02,311 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:12:02,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:12:02,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:12:02,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:12:02,312 INFO L87 Difference]: Start difference. First operand 266 states and 391 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 12:12:04,323 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 12:12:04,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:12:04,816 INFO L93 Difference]: Finished difference Result 678 states and 1005 transitions. [2022-03-20 12:12:04,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:12:04,816 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 12:12:04,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:12:04,819 INFO L225 Difference]: With dead ends: 678 [2022-03-20 12:12:04,819 INFO L226 Difference]: Without dead ends: 428 [2022-03-20 12:12:04,819 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 12:12:04,820 INFO L913 BasicCegarLoop]: 99 mSDtfsCounter, 120 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:12:04,821 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 284 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:12:04,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-03-20 12:12:04,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 268. [2022-03-20 12:12:04,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 263 states have (on average 1.4752851711026616) internal successors, (388), 263 states have internal predecessors, (388), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:04,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 392 transitions. [2022-03-20 12:12:04,833 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 392 transitions. Word has length 75 [2022-03-20 12:12:04,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:12:04,833 INFO L478 AbstractCegarLoop]: Abstraction has 268 states and 392 transitions. [2022-03-20 12:12:04,833 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 12:12:04,833 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 392 transitions. [2022-03-20 12:12:04,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-03-20 12:12:04,835 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:12:04,835 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 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 12:12:04,835 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 12:12:04,836 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:12:04,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:12:04,836 INFO L85 PathProgramCache]: Analyzing trace with hash 420689370, now seen corresponding path program 1 times [2022-03-20 12:12:04,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:12:04,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173645874] [2022-03-20 12:12:04,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:12:04,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:12:04,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:05,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:12:05,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:05,063 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 12:12:05,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:12:05,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173645874] [2022-03-20 12:12:05,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173645874] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:12:05,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:12:05,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:12:05,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283709846] [2022-03-20 12:12:05,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:12:05,067 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:12:05,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:12:05,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:12:05,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:12:05,068 INFO L87 Difference]: Start difference. First operand 268 states and 392 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 12:12:07,084 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 12:12:07,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:12:07,516 INFO L93 Difference]: Finished difference Result 680 states and 1003 transitions. [2022-03-20 12:12:07,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:12:07,516 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 12:12:07,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:12:07,518 INFO L225 Difference]: With dead ends: 680 [2022-03-20 12:12:07,518 INFO L226 Difference]: Without dead ends: 428 [2022-03-20 12:12:07,519 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 12:12:07,519 INFO L913 BasicCegarLoop]: 110 mSDtfsCounter, 118 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:12:07,519 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 306 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 396 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:12:07,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-03-20 12:12:07,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 270. [2022-03-20 12:12:07,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 265 states have (on average 1.4679245283018867) internal successors, (389), 265 states have internal predecessors, (389), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:07,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 393 transitions. [2022-03-20 12:12:07,528 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 393 transitions. Word has length 76 [2022-03-20 12:12:07,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:12:07,529 INFO L478 AbstractCegarLoop]: Abstraction has 270 states and 393 transitions. [2022-03-20 12:12:07,529 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 12:12:07,529 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 393 transitions. [2022-03-20 12:12:07,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-20 12:12:07,530 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:12:07,530 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:12:07,530 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 12:12:07,530 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:12:07,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:12:07,531 INFO L85 PathProgramCache]: Analyzing trace with hash -70572812, now seen corresponding path program 1 times [2022-03-20 12:12:07,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:12:07,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346954531] [2022-03-20 12:12:07,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:12:07,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:12:07,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:07,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:12:07,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:07,735 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 12:12:07,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:12:07,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346954531] [2022-03-20 12:12:07,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346954531] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:12:07,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:12:07,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:12:07,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860355601] [2022-03-20 12:12:07,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:12:07,736 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:12:07,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:12:07,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:12:07,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:12:07,737 INFO L87 Difference]: Start difference. First operand 270 states and 393 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:09,747 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 12:12:10,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:12:10,256 INFO L93 Difference]: Finished difference Result 682 states and 1001 transitions. [2022-03-20 12:12:10,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:12:10,257 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2022-03-20 12:12:10,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:12:10,261 INFO L225 Difference]: With dead ends: 682 [2022-03-20 12:12:10,263 INFO L226 Difference]: Without dead ends: 428 [2022-03-20 12:12:10,264 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 12:12:10,271 INFO L913 BasicCegarLoop]: 99 mSDtfsCounter, 116 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:12:10,271 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 284 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:12:10,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-03-20 12:12:10,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 272. [2022-03-20 12:12:10,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 267 states have (on average 1.4606741573033708) internal successors, (390), 267 states have internal predecessors, (390), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:10,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 394 transitions. [2022-03-20 12:12:10,285 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 394 transitions. Word has length 77 [2022-03-20 12:12:10,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:12:10,286 INFO L478 AbstractCegarLoop]: Abstraction has 272 states and 394 transitions. [2022-03-20 12:12:10,286 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:10,286 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 394 transitions. [2022-03-20 12:12:10,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-20 12:12:10,287 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:12:10,287 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 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 12:12:10,288 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 12:12:10,288 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:12:10,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:12:10,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1362398755, now seen corresponding path program 1 times [2022-03-20 12:12:10,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:12:10,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247941921] [2022-03-20 12:12:10,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:12:10,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:12:10,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:10,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:12:10,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:10,503 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 12:12:10,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:12:10,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247941921] [2022-03-20 12:12:10,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247941921] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:12:10,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:12:10,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:12:10,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675398419] [2022-03-20 12:12:10,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:12:10,505 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:12:10,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:12:10,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:12:10,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:12:10,505 INFO L87 Difference]: Start difference. First operand 272 states and 394 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:12,392 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:12:14,464 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:12:16,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:12:18,515 WARN L534 Checker$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 12:12:18,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:12:18,920 INFO L93 Difference]: Finished difference Result 684 states and 999 transitions. [2022-03-20 12:12:18,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:12:18,921 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2022-03-20 12:12:18,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:12:18,922 INFO L225 Difference]: With dead ends: 684 [2022-03-20 12:12:18,922 INFO L226 Difference]: Without dead ends: 428 [2022-03-20 12:12:18,923 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 12:12:18,923 INFO L913 BasicCegarLoop]: 99 mSDtfsCounter, 114 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 46 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:12:18,924 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 284 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 385 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2022-03-20 12:12:18,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-03-20 12:12:18,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 274. [2022-03-20 12:12:18,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 269 states have (on average 1.453531598513011) internal successors, (391), 269 states have internal predecessors, (391), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:18,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 395 transitions. [2022-03-20 12:12:18,931 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 395 transitions. Word has length 78 [2022-03-20 12:12:18,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:12:18,931 INFO L478 AbstractCegarLoop]: Abstraction has 274 states and 395 transitions. [2022-03-20 12:12:18,931 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:18,931 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 395 transitions. [2022-03-20 12:12:18,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-20 12:12:18,932 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:12:18,932 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, 1] [2022-03-20 12:12:18,932 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 12:12:18,932 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:12:18,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:12:18,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1733724060, now seen corresponding path program 1 times [2022-03-20 12:12:18,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:12:18,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742583470] [2022-03-20 12:12:18,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:12:18,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:12:19,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:19,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:12:19,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:19,095 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 12:12:19,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:12:19,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742583470] [2022-03-20 12:12:19,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742583470] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:12:19,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:12:19,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:12:19,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137800000] [2022-03-20 12:12:19,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:12:19,097 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:12:19,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:12:19,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:12:19,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:12:19,098 INFO L87 Difference]: Start difference. First operand 274 states and 395 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:21,108 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 12:12:21,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:12:21,565 INFO L93 Difference]: Finished difference Result 551 states and 803 transitions. [2022-03-20 12:12:21,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:12:21,567 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2022-03-20 12:12:21,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:12:21,570 INFO L225 Difference]: With dead ends: 551 [2022-03-20 12:12:21,570 INFO L226 Difference]: Without dead ends: 411 [2022-03-20 12:12:21,570 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 12:12:21,574 INFO L913 BasicCegarLoop]: 319 mSDtfsCounter, 128 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:12:21,574 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 483 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 343 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:12:21,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2022-03-20 12:12:21,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 411. [2022-03-20 12:12:21,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 406 states have (on average 1.4482758620689655) internal successors, (588), 406 states have internal predecessors, (588), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:21,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 592 transitions. [2022-03-20 12:12:21,586 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 592 transitions. Word has length 78 [2022-03-20 12:12:21,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:12:21,587 INFO L478 AbstractCegarLoop]: Abstraction has 411 states and 592 transitions. [2022-03-20 12:12:21,587 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:21,587 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 592 transitions. [2022-03-20 12:12:21,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-20 12:12:21,588 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:12:21,588 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, 1] [2022-03-20 12:12:21,588 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 12:12:21,588 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:12:21,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:12:21,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1702704253, now seen corresponding path program 1 times [2022-03-20 12:12:21,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:12:21,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447731319] [2022-03-20 12:12:21,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:12:21,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:12:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:21,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:12:21,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:21,744 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 12:12:21,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:12:21,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447731319] [2022-03-20 12:12:21,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447731319] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:12:21,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:12:21,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:12:21,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802062545] [2022-03-20 12:12:21,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:12:21,749 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:12:21,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:12:21,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:12:21,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:12:21,749 INFO L87 Difference]: Start difference. First operand 411 states and 592 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:23,776 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 12:12:24,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:12:24,103 INFO L93 Difference]: Finished difference Result 712 states and 1028 transitions. [2022-03-20 12:12:24,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:12:24,104 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2022-03-20 12:12:24,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:12:24,106 INFO L225 Difference]: With dead ends: 712 [2022-03-20 12:12:24,106 INFO L226 Difference]: Without dead ends: 435 [2022-03-20 12:12:24,107 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 12:12:24,107 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 15 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:12:24,108 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 363 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 215 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:12:24,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-03-20 12:12:24,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 435. [2022-03-20 12:12:24,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 430 states have (on average 1.441860465116279) internal successors, (620), 430 states have internal predecessors, (620), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:24,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 624 transitions. [2022-03-20 12:12:24,121 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 624 transitions. Word has length 78 [2022-03-20 12:12:24,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:12:24,121 INFO L478 AbstractCegarLoop]: Abstraction has 435 states and 624 transitions. [2022-03-20 12:12:24,122 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:24,122 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 624 transitions. [2022-03-20 12:12:24,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-03-20 12:12:24,123 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:12:24,123 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, 1] [2022-03-20 12:12:24,123 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 12:12:24,123 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:12:24,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:12:24,124 INFO L85 PathProgramCache]: Analyzing trace with hash -283396127, now seen corresponding path program 1 times [2022-03-20 12:12:24,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:12:24,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391429533] [2022-03-20 12:12:24,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:12:24,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:12:24,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:24,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:12:24,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:24,280 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 12:12:24,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:12:24,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391429533] [2022-03-20 12:12:24,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391429533] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:12:24,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:12:24,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:12:24,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553057169] [2022-03-20 12:12:24,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:12:24,281 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:12:24,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:12:24,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:12:24,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:12:24,282 INFO L87 Difference]: Start difference. First operand 435 states and 624 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 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 12:12:26,291 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 12:12:26,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:12:26,778 INFO L93 Difference]: Finished difference Result 872 states and 1260 transitions. [2022-03-20 12:12:26,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:12:26,780 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 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 98 [2022-03-20 12:12:26,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:12:26,782 INFO L225 Difference]: With dead ends: 872 [2022-03-20 12:12:26,782 INFO L226 Difference]: Without dead ends: 571 [2022-03-20 12:12:26,783 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 12:12:26,784 INFO L913 BasicCegarLoop]: 318 mSDtfsCounter, 128 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:12:26,784 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 482 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:12:26,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2022-03-20 12:12:26,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2022-03-20 12:12:26,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 566 states have (on average 1.441696113074205) internal successors, (816), 566 states have internal predecessors, (816), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:26,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 820 transitions. [2022-03-20 12:12:26,799 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 820 transitions. Word has length 98 [2022-03-20 12:12:26,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:12:26,799 INFO L478 AbstractCegarLoop]: Abstraction has 571 states and 820 transitions. [2022-03-20 12:12:26,799 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 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 12:12:26,799 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 820 transitions. [2022-03-20 12:12:26,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-03-20 12:12:26,801 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:12:26,801 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, 1] [2022-03-20 12:12:26,801 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 12:12:26,801 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:12:26,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:12:26,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1286229179, now seen corresponding path program 1 times [2022-03-20 12:12:26,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:12:26,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559535681] [2022-03-20 12:12:26,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:12:26,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:12:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:26,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:12:26,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:26,997 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 12:12:26,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:12:26,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559535681] [2022-03-20 12:12:26,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559535681] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:12:26,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:12:26,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:12:26,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687884968] [2022-03-20 12:12:26,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:12:26,998 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:12:26,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:12:26,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:12:26,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:12:26,999 INFO L87 Difference]: Start difference. First operand 571 states and 820 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:29,009 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 12:12:29,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:12:29,432 INFO L93 Difference]: Finished difference Result 1143 states and 1650 transitions. [2022-03-20 12:12:29,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:12:29,433 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2022-03-20 12:12:29,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:12:29,436 INFO L225 Difference]: With dead ends: 1143 [2022-03-20 12:12:29,436 INFO L226 Difference]: Without dead ends: 706 [2022-03-20 12:12:29,437 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 12:12:29,438 INFO L913 BasicCegarLoop]: 316 mSDtfsCounter, 126 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:12:29,438 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 480 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 340 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:12:29,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2022-03-20 12:12:29,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2022-03-20 12:12:29,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 701 states have (on average 1.4407988587731813) internal successors, (1010), 701 states have internal predecessors, (1010), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:29,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 1014 transitions. [2022-03-20 12:12:29,456 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 1014 transitions. Word has length 119 [2022-03-20 12:12:29,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:12:29,456 INFO L478 AbstractCegarLoop]: Abstraction has 706 states and 1014 transitions. [2022-03-20 12:12:29,456 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:29,456 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 1014 transitions. [2022-03-20 12:12:29,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-20 12:12:29,458 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:12:29,458 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:12:29,458 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 12:12:29,459 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:12:29,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:12:29,459 INFO L85 PathProgramCache]: Analyzing trace with hash -768225432, now seen corresponding path program 1 times [2022-03-20 12:12:29,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:12:29,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080968231] [2022-03-20 12:12:29,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:12:29,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:12:29,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:29,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:12:29,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:29,623 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-20 12:12:29,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:12:29,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080968231] [2022-03-20 12:12:29,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080968231] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:12:29,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:12:29,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:12:29,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342034392] [2022-03-20 12:12:29,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:12:29,624 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:12:29,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:12:29,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:12:29,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:12:29,625 INFO L87 Difference]: Start difference. First operand 706 states and 1014 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:31,636 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 12:12:32,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:12:32,014 INFO L93 Difference]: Finished difference Result 1567 states and 2247 transitions. [2022-03-20 12:12:32,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:12:32,014 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-03-20 12:12:32,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:12:32,018 INFO L225 Difference]: With dead ends: 1567 [2022-03-20 12:12:32,018 INFO L226 Difference]: Without dead ends: 877 [2022-03-20 12:12:32,020 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 12:12:32,020 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 37 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:12:32,021 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 509 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 383 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:12:32,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2022-03-20 12:12:32,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 802. [2022-03-20 12:12:32,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 797 states have (on average 1.452948557089084) internal successors, (1158), 797 states have internal predecessors, (1158), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:32,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1162 transitions. [2022-03-20 12:12:32,042 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1162 transitions. Word has length 145 [2022-03-20 12:12:32,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:12:32,042 INFO L478 AbstractCegarLoop]: Abstraction has 802 states and 1162 transitions. [2022-03-20 12:12:32,043 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:32,043 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1162 transitions. [2022-03-20 12:12:32,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-03-20 12:12:32,045 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:12:32,045 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:12:32,045 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 12:12:32,045 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:12:32,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:12:32,046 INFO L85 PathProgramCache]: Analyzing trace with hash -722871794, now seen corresponding path program 1 times [2022-03-20 12:12:32,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:12:32,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089289614] [2022-03-20 12:12:32,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:12:32,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:12:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:32,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:12:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:32,228 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 12:12:32,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:12:32,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089289614] [2022-03-20 12:12:32,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089289614] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:12:32,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:12:32,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:12:32,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565548035] [2022-03-20 12:12:32,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:12:32,229 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:12:32,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:12:32,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:12:32,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:12:32,230 INFO L87 Difference]: Start difference. First operand 802 states and 1162 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 12:12:34,241 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:12:34,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:12:34,681 INFO L93 Difference]: Finished difference Result 2001 states and 2906 transitions. [2022-03-20 12:12:34,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:12:34,682 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 163 [2022-03-20 12:12:34,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:12:34,685 INFO L225 Difference]: With dead ends: 2001 [2022-03-20 12:12:34,685 INFO L226 Difference]: Without dead ends: 1215 [2022-03-20 12:12:34,686 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 12:12:34,686 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 90 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:12:34,686 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 564 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 523 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:12:34,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1215 states. [2022-03-20 12:12:34,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1215 to 907. [2022-03-20 12:12:34,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 902 states have (on average 1.4501108647450112) internal successors, (1308), 902 states have internal predecessors, (1308), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:34,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1312 transitions. [2022-03-20 12:12:34,703 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1312 transitions. Word has length 163 [2022-03-20 12:12:34,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:12:34,703 INFO L478 AbstractCegarLoop]: Abstraction has 907 states and 1312 transitions. [2022-03-20 12:12:34,703 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 12:12:34,703 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1312 transitions. [2022-03-20 12:12:34,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-03-20 12:12:34,705 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:12:34,705 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:12:34,705 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 12:12:34,705 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:12:34,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:12:34,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1242164081, now seen corresponding path program 1 times [2022-03-20 12:12:34,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:12:34,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995881143] [2022-03-20 12:12:34,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:12:34,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:12:34,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:34,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:12:34,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:34,865 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 229 proven. 1 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2022-03-20 12:12:34,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:12:34,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995881143] [2022-03-20 12:12:34,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995881143] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 12:12:34,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175448893] [2022-03-20 12:12:34,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:12:34,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:12:34,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:12:34,867 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 12:12:34,873 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 12:12:35,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:35,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 1463 conjuncts, 23 conjunts are in the unsatisfiable core [2022-03-20 12:12:35,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 12:12:35,645 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-03-20 12:12:35,646 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 12:12:35,656 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 12:12:35,676 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 12:12:35,684 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 12:12:35,818 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-03-20 12:12:35,835 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 12:12:35,873 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 12:12:35,873 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 12:12:35,949 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 12:12:35,950 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 12:12:36,004 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 12:12:36,065 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 195 proven. 40 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-03-20 12:12:36,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 12:12:36,124 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 10 treesize of output 4 [2022-03-20 12:12:36,331 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 201 proven. 8 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-03-20 12:12:36,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175448893] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-20 12:12:36,331 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-20 12:12:36,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 7] total 14 [2022-03-20 12:12:36,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36999785] [2022-03-20 12:12:36,333 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-20 12:12:36,334 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-20 12:12:36,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:12:36,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-20 12:12:36,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-20 12:12:36,334 INFO L87 Difference]: Start difference. First operand 907 states and 1312 transitions. Second operand has 14 states, 14 states have (on average 12.357142857142858) internal successors, (173), 13 states have internal predecessors, (173), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:38,351 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 12:12:40,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:12:40,991 INFO L93 Difference]: Finished difference Result 3956 states and 5711 transitions. [2022-03-20 12:12:40,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-20 12:12:40,992 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.357142857142858) internal successors, (173), 13 states have internal predecessors, (173), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 163 [2022-03-20 12:12:40,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:12:41,002 INFO L225 Difference]: With dead ends: 3956 [2022-03-20 12:12:41,002 INFO L226 Difference]: Without dead ends: 3065 [2022-03-20 12:12:41,005 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=252, Invalid=1080, Unknown=0, NotChecked=0, Total=1332 [2022-03-20 12:12:41,005 INFO L913 BasicCegarLoop]: 249 mSDtfsCounter, 791 mSDsluCounter, 2031 mSDsCounter, 0 mSdLazyCounter, 2311 mSolverCounterSat, 231 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 2280 SdHoareTripleChecker+Invalid, 2543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 2311 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:12:41,006 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [791 Valid, 2280 Invalid, 2543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 2311 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-03-20 12:12:41,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3065 states. [2022-03-20 12:12:41,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3065 to 1671. [2022-03-20 12:12:41,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1671 states, 1666 states have (on average 1.474189675870348) internal successors, (2456), 1666 states have internal predecessors, (2456), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:41,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1671 states to 1671 states and 2460 transitions. [2022-03-20 12:12:41,064 INFO L78 Accepts]: Start accepts. Automaton has 1671 states and 2460 transitions. Word has length 163 [2022-03-20 12:12:41,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:12:41,064 INFO L478 AbstractCegarLoop]: Abstraction has 1671 states and 2460 transitions. [2022-03-20 12:12:41,065 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.357142857142858) internal successors, (173), 13 states have internal predecessors, (173), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:41,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1671 states and 2460 transitions. [2022-03-20 12:12:41,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-03-20 12:12:41,069 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:12:41,069 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:12:41,118 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-20 12:12:41,287 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,SelfDestructingSolverStorable14 [2022-03-20 12:12:41,288 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:12:41,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:12:41,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1707511488, now seen corresponding path program 1 times [2022-03-20 12:12:41,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:12:41,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196767668] [2022-03-20 12:12:41,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:12:41,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:12:41,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:41,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:12:41,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:41,499 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-03-20 12:12:41,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:12:41,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196767668] [2022-03-20 12:12:41,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196767668] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:12:41,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:12:41,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:12:41,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23809317] [2022-03-20 12:12:41,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:12:41,500 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:12:41,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:12:41,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:12:41,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:12:41,501 INFO L87 Difference]: Start difference. First operand 1671 states and 2460 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:43,511 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 12:12:43,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:12:43,901 INFO L93 Difference]: Finished difference Result 4046 states and 5924 transitions. [2022-03-20 12:12:43,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:12:43,904 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 164 [2022-03-20 12:12:43,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:12:43,910 INFO L225 Difference]: With dead ends: 4046 [2022-03-20 12:12:43,910 INFO L226 Difference]: Without dead ends: 2391 [2022-03-20 12:12:43,913 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 12:12:43,913 INFO L913 BasicCegarLoop]: 101 mSDtfsCounter, 108 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:12:43,913 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 288 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 388 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:12:43,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2391 states. [2022-03-20 12:12:43,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2391 to 1671. [2022-03-20 12:12:43,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1671 states, 1666 states have (on average 1.4663865546218486) internal successors, (2443), 1666 states have internal predecessors, (2443), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:43,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1671 states to 1671 states and 2447 transitions. [2022-03-20 12:12:43,951 INFO L78 Accepts]: Start accepts. Automaton has 1671 states and 2447 transitions. Word has length 164 [2022-03-20 12:12:43,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:12:43,951 INFO L478 AbstractCegarLoop]: Abstraction has 1671 states and 2447 transitions. [2022-03-20 12:12:43,951 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:43,951 INFO L276 IsEmpty]: Start isEmpty. Operand 1671 states and 2447 transitions. [2022-03-20 12:12:43,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-03-20 12:12:43,954 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:12:43,954 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:12:43,954 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 12:12:43,954 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:12:43,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:12:43,954 INFO L85 PathProgramCache]: Analyzing trace with hash 711127101, now seen corresponding path program 1 times [2022-03-20 12:12:43,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:12:43,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621450442] [2022-03-20 12:12:43,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:12:43,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:12:44,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:44,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:12:44,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:44,136 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 206 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-03-20 12:12:44,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:12:44,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621450442] [2022-03-20 12:12:44,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621450442] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:12:44,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:12:44,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:12:44,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687480001] [2022-03-20 12:12:44,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:12:44,137 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:12:44,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:12:44,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:12:44,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:12:44,137 INFO L87 Difference]: Start difference. First operand 1671 states and 2447 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 12:12:46,155 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 12:12:46,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:12:46,532 INFO L93 Difference]: Finished difference Result 3442 states and 5005 transitions. [2022-03-20 12:12:46,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:12:46,541 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 165 [2022-03-20 12:12:46,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:12:46,546 INFO L225 Difference]: With dead ends: 3442 [2022-03-20 12:12:46,546 INFO L226 Difference]: Without dead ends: 1787 [2022-03-20 12:12:46,548 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 12:12:46,549 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 35 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:12:46,549 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 497 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 363 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:12:46,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1787 states. [2022-03-20 12:12:46,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1787 to 1671. [2022-03-20 12:12:46,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1671 states, 1666 states have (on average 1.4615846338535414) internal successors, (2435), 1666 states have internal predecessors, (2435), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:46,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1671 states to 1671 states and 2439 transitions. [2022-03-20 12:12:46,582 INFO L78 Accepts]: Start accepts. Automaton has 1671 states and 2439 transitions. Word has length 165 [2022-03-20 12:12:46,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:12:46,583 INFO L478 AbstractCegarLoop]: Abstraction has 1671 states and 2439 transitions. [2022-03-20 12:12:46,583 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 12:12:46,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1671 states and 2439 transitions. [2022-03-20 12:12:46,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-03-20 12:12:46,585 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:12:46,585 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:12:46,585 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 12:12:46,586 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:12:46,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:12:46,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1737330566, now seen corresponding path program 1 times [2022-03-20 12:12:46,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:12:46,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997393622] [2022-03-20 12:12:46,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:12:46,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:12:46,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:46,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:12:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:46,753 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-03-20 12:12:46,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:12:46,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997393622] [2022-03-20 12:12:46,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997393622] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:12:46,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:12:46,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:12:46,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027787546] [2022-03-20 12:12:46,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:12:46,754 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:12:46,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:12:46,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:12:46,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:12:46,755 INFO L87 Difference]: Start difference. First operand 1671 states and 2439 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 12:12:48,764 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 12:12:49,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:12:49,199 INFO L93 Difference]: Finished difference Result 3902 states and 5672 transitions. [2022-03-20 12:12:49,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:12:49,199 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 165 [2022-03-20 12:12:49,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:12:49,207 INFO L225 Difference]: With dead ends: 3902 [2022-03-20 12:12:49,207 INFO L226 Difference]: Without dead ends: 2247 [2022-03-20 12:12:49,210 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 12:12:49,211 INFO L913 BasicCegarLoop]: 99 mSDtfsCounter, 107 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:12:49,211 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 284 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:12:49,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2247 states. [2022-03-20 12:12:49,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2247 to 1671. [2022-03-20 12:12:49,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1671 states, 1666 states have (on average 1.45078031212485) internal successors, (2417), 1666 states have internal predecessors, (2417), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:49,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1671 states to 1671 states and 2421 transitions. [2022-03-20 12:12:49,259 INFO L78 Accepts]: Start accepts. Automaton has 1671 states and 2421 transitions. Word has length 165 [2022-03-20 12:12:49,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:12:49,259 INFO L478 AbstractCegarLoop]: Abstraction has 1671 states and 2421 transitions. [2022-03-20 12:12:49,259 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 12:12:49,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1671 states and 2421 transitions. [2022-03-20 12:12:49,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-03-20 12:12:49,262 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:12:49,262 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:12:49,263 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 12:12:49,263 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:12:49,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:12:49,263 INFO L85 PathProgramCache]: Analyzing trace with hash 895050319, now seen corresponding path program 1 times [2022-03-20 12:12:49,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:12:49,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931443319] [2022-03-20 12:12:49,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:12:49,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:12:49,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:49,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:12:49,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:49,508 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-03-20 12:12:49,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:12:49,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931443319] [2022-03-20 12:12:49,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931443319] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:12:49,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:12:49,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:12:49,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374113598] [2022-03-20 12:12:49,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:12:49,510 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:12:49,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:12:49,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:12:49,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:12:49,511 INFO L87 Difference]: Start difference. First operand 1671 states and 2421 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:51,523 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 12:12:51,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:12:51,940 INFO L93 Difference]: Finished difference Result 3896 states and 5630 transitions. [2022-03-20 12:12:51,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:12:51,940 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 168 [2022-03-20 12:12:51,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:12:51,947 INFO L225 Difference]: With dead ends: 3896 [2022-03-20 12:12:51,947 INFO L226 Difference]: Without dead ends: 2241 [2022-03-20 12:12:51,957 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 12:12:51,957 INFO L913 BasicCegarLoop]: 99 mSDtfsCounter, 103 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:12:51,958 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 284 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:12:51,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2022-03-20 12:12:51,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 1681. [2022-03-20 12:12:51,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1681 states, 1676 states have (on average 1.448090692124105) internal successors, (2427), 1676 states have internal predecessors, (2427), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:51,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1681 states to 1681 states and 2431 transitions. [2022-03-20 12:12:51,992 INFO L78 Accepts]: Start accepts. Automaton has 1681 states and 2431 transitions. Word has length 168 [2022-03-20 12:12:51,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:12:51,992 INFO L478 AbstractCegarLoop]: Abstraction has 1681 states and 2431 transitions. [2022-03-20 12:12:51,992 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:51,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1681 states and 2431 transitions. [2022-03-20 12:12:51,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-03-20 12:12:51,995 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:12:51,995 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:12:51,995 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 12:12:51,995 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:12:51,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:12:51,995 INFO L85 PathProgramCache]: Analyzing trace with hash -575385625, now seen corresponding path program 1 times [2022-03-20 12:12:51,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:12:51,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688723323] [2022-03-20 12:12:51,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:12:51,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:12:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:52,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:12:52,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:52,148 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 213 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-03-20 12:12:52,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:12:52,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688723323] [2022-03-20 12:12:52,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688723323] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:12:52,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:12:52,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:12:52,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740691919] [2022-03-20 12:12:52,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:12:52,149 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:12:52,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:12:52,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:12:52,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:12:52,149 INFO L87 Difference]: Start difference. First operand 1681 states and 2431 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:54,157 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 12:12:54,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:12:54,529 INFO L93 Difference]: Finished difference Result 4156 states and 5980 transitions. [2022-03-20 12:12:54,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:12:54,529 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 188 [2022-03-20 12:12:54,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:12:54,535 INFO L225 Difference]: With dead ends: 4156 [2022-03-20 12:12:54,535 INFO L226 Difference]: Without dead ends: 2491 [2022-03-20 12:12:54,537 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 12:12:54,537 INFO L913 BasicCegarLoop]: 100 mSDtfsCounter, 105 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:12:54,538 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 286 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 386 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:12:54,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2491 states. [2022-03-20 12:12:54,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2491 to 1901. [2022-03-20 12:12:54,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1901 states, 1896 states have (on average 1.4340717299578059) internal successors, (2719), 1896 states have internal predecessors, (2719), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:54,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1901 states to 1901 states and 2723 transitions. [2022-03-20 12:12:54,587 INFO L78 Accepts]: Start accepts. Automaton has 1901 states and 2723 transitions. Word has length 188 [2022-03-20 12:12:54,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:12:54,588 INFO L478 AbstractCegarLoop]: Abstraction has 1901 states and 2723 transitions. [2022-03-20 12:12:54,588 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:54,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1901 states and 2723 transitions. [2022-03-20 12:12:54,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-03-20 12:12:54,591 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:12:54,591 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:12:54,591 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 12:12:54,591 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:12:54,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:12:54,591 INFO L85 PathProgramCache]: Analyzing trace with hash 273643671, now seen corresponding path program 1 times [2022-03-20 12:12:54,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:12:54,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046722144] [2022-03-20 12:12:54,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:12:54,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:12:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:54,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:12:54,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:54,740 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-03-20 12:12:54,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:12:54,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046722144] [2022-03-20 12:12:54,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046722144] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:12:54,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:12:54,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:12:54,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312528290] [2022-03-20 12:12:54,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:12:54,742 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:12:54,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:12:54,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:12:54,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:12:54,743 INFO L87 Difference]: Start difference. First operand 1901 states and 2723 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:56,753 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 12:12:57,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:12:57,160 INFO L93 Difference]: Finished difference Result 4346 states and 6214 transitions. [2022-03-20 12:12:57,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:12:57,160 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 189 [2022-03-20 12:12:57,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:12:57,166 INFO L225 Difference]: With dead ends: 4346 [2022-03-20 12:12:57,166 INFO L226 Difference]: Without dead ends: 2461 [2022-03-20 12:12:57,168 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 12:12:57,168 INFO L913 BasicCegarLoop]: 105 mSDtfsCounter, 104 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:12:57,169 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 296 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 390 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:12:57,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2461 states. [2022-03-20 12:12:57,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2461 to 1901. [2022-03-20 12:12:57,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1901 states, 1896 states have (on average 1.4245780590717299) internal successors, (2701), 1896 states have internal predecessors, (2701), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:57,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1901 states to 1901 states and 2705 transitions. [2022-03-20 12:12:57,206 INFO L78 Accepts]: Start accepts. Automaton has 1901 states and 2705 transitions. Word has length 189 [2022-03-20 12:12:57,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:12:57,206 INFO L478 AbstractCegarLoop]: Abstraction has 1901 states and 2705 transitions. [2022-03-20 12:12:57,206 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:57,206 INFO L276 IsEmpty]: Start isEmpty. Operand 1901 states and 2705 transitions. [2022-03-20 12:12:57,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-03-20 12:12:57,210 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:12:57,210 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:12:57,210 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 12:12:57,210 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:12:57,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:12:57,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1067906419, now seen corresponding path program 1 times [2022-03-20 12:12:57,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:12:57,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121446567] [2022-03-20 12:12:57,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:12:57,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:12:57,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:57,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:12:57,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:12:57,372 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-03-20 12:12:57,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:12:57,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121446567] [2022-03-20 12:12:57,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121446567] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:12:57,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:12:57,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:12:57,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992647698] [2022-03-20 12:12:57,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:12:57,373 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:12:57,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:12:57,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:12:57,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:12:57,373 INFO L87 Difference]: Start difference. First operand 1901 states and 2705 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:59,384 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 12:12:59,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:12:59,774 INFO L93 Difference]: Finished difference Result 4616 states and 6528 transitions. [2022-03-20 12:12:59,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:12:59,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 204 [2022-03-20 12:12:59,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:12:59,782 INFO L225 Difference]: With dead ends: 4616 [2022-03-20 12:12:59,782 INFO L226 Difference]: Without dead ends: 2731 [2022-03-20 12:12:59,785 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:12:59,785 INFO L913 BasicCegarLoop]: 105 mSDtfsCounter, 90 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 38 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:12:59,785 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 296 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 395 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:12:59,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2731 states. [2022-03-20 12:12:59,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2731 to 2281. [2022-03-20 12:12:59,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2281 states, 2276 states have (on average 1.4327768014059754) internal successors, (3261), 2276 states have internal predecessors, (3261), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:59,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2281 states to 2281 states and 3265 transitions. [2022-03-20 12:12:59,827 INFO L78 Accepts]: Start accepts. Automaton has 2281 states and 3265 transitions. Word has length 204 [2022-03-20 12:12:59,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:12:59,828 INFO L478 AbstractCegarLoop]: Abstraction has 2281 states and 3265 transitions. [2022-03-20 12:12:59,828 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:12:59,828 INFO L276 IsEmpty]: Start isEmpty. Operand 2281 states and 3265 transitions. [2022-03-20 12:12:59,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-03-20 12:12:59,831 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:12:59,831 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:12:59,832 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 12:12:59,832 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:12:59,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:12:59,832 INFO L85 PathProgramCache]: Analyzing trace with hash -414762930, now seen corresponding path program 1 times [2022-03-20 12:12:59,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:12:59,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118065193] [2022-03-20 12:12:59,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:12:59,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:12:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:00,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:00,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:00,005 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-03-20 12:13:00,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:00,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118065193] [2022-03-20 12:13:00,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118065193] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:00,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:00,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:13:00,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955501732] [2022-03-20 12:13:00,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:00,006 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:13:00,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:00,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:13:00,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:13:00,007 INFO L87 Difference]: Start difference. First operand 2281 states and 3265 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:02,017 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 12:13:02,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:02,467 INFO L93 Difference]: Finished difference Result 5106 states and 7298 transitions. [2022-03-20 12:13:02,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:13:02,468 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 204 [2022-03-20 12:13:02,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:02,475 INFO L225 Difference]: With dead ends: 5106 [2022-03-20 12:13:02,475 INFO L226 Difference]: Without dead ends: 2841 [2022-03-20 12:13:02,479 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 12:13:02,480 INFO L913 BasicCegarLoop]: 105 mSDtfsCounter, 88 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:02,480 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 296 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 390 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:13:02,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2841 states. [2022-03-20 12:13:02,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2841 to 2411. [2022-03-20 12:13:02,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2411 states, 2406 states have (on average 1.4592684954280963) internal successors, (3511), 2406 states have internal predecessors, (3511), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:02,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2411 states to 2411 states and 3515 transitions. [2022-03-20 12:13:02,581 INFO L78 Accepts]: Start accepts. Automaton has 2411 states and 3515 transitions. Word has length 204 [2022-03-20 12:13:02,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:02,581 INFO L478 AbstractCegarLoop]: Abstraction has 2411 states and 3515 transitions. [2022-03-20 12:13:02,581 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:02,581 INFO L276 IsEmpty]: Start isEmpty. Operand 2411 states and 3515 transitions. [2022-03-20 12:13:02,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-03-20 12:13:02,592 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:02,592 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:13:02,592 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 12:13:02,593 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:02,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:02,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1678788067, now seen corresponding path program 1 times [2022-03-20 12:13:02,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:02,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539441666] [2022-03-20 12:13:02,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:02,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:02,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:02,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:02,841 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-03-20 12:13:02,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:02,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539441666] [2022-03-20 12:13:02,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539441666] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:02,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:02,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:13:02,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68711407] [2022-03-20 12:13:02,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:02,842 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:13:02,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:02,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:13:02,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:13:02,842 INFO L87 Difference]: Start difference. First operand 2411 states and 3515 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:04,857 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 12:13:05,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:05,319 INFO L93 Difference]: Finished difference Result 5226 states and 7528 transitions. [2022-03-20 12:13:05,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:13:05,319 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 205 [2022-03-20 12:13:05,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:05,324 INFO L225 Difference]: With dead ends: 5226 [2022-03-20 12:13:05,324 INFO L226 Difference]: Without dead ends: 2831 [2022-03-20 12:13:05,327 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 12:13:05,327 INFO L913 BasicCegarLoop]: 106 mSDtfsCounter, 85 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:05,327 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 298 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 388 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:13:05,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states. [2022-03-20 12:13:05,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 2421. [2022-03-20 12:13:05,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2421 states, 2416 states have (on average 1.4573675496688743) internal successors, (3521), 2416 states have internal predecessors, (3521), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:05,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 3525 transitions. [2022-03-20 12:13:05,373 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 3525 transitions. Word has length 205 [2022-03-20 12:13:05,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:05,374 INFO L478 AbstractCegarLoop]: Abstraction has 2421 states and 3525 transitions. [2022-03-20 12:13:05,374 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:05,374 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 3525 transitions. [2022-03-20 12:13:05,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-03-20 12:13:05,378 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:05,378 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:13:05,378 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 12:13:05,378 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:05,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:05,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1826088165, now seen corresponding path program 1 times [2022-03-20 12:13:05,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:05,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69353066] [2022-03-20 12:13:05,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:05,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:05,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:05,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:05,601 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-03-20 12:13:05,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:05,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69353066] [2022-03-20 12:13:05,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69353066] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:05,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:05,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:13:05,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154916545] [2022-03-20 12:13:05,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:05,602 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:13:05,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:05,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:13:05,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:13:05,603 INFO L87 Difference]: Start difference. First operand 2421 states and 3525 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:07,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:13:08,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:08,063 INFO L93 Difference]: Finished difference Result 5236 states and 7528 transitions. [2022-03-20 12:13:08,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:13:08,064 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 205 [2022-03-20 12:13:08,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:08,071 INFO L225 Difference]: With dead ends: 5236 [2022-03-20 12:13:08,071 INFO L226 Difference]: Without dead ends: 2831 [2022-03-20 12:13:08,075 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 12:13:08,078 INFO L913 BasicCegarLoop]: 106 mSDtfsCounter, 86 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:08,079 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 298 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 388 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:13:08,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states. [2022-03-20 12:13:08,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 2421. [2022-03-20 12:13:08,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2421 states, 2416 states have (on average 1.453228476821192) internal successors, (3511), 2416 states have internal predecessors, (3511), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:08,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 3515 transitions. [2022-03-20 12:13:08,174 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 3515 transitions. Word has length 205 [2022-03-20 12:13:08,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:08,175 INFO L478 AbstractCegarLoop]: Abstraction has 2421 states and 3515 transitions. [2022-03-20 12:13:08,175 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:08,175 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 3515 transitions. [2022-03-20 12:13:08,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-03-20 12:13:08,181 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:08,182 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:13:08,182 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 12:13:08,182 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:08,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:08,182 INFO L85 PathProgramCache]: Analyzing trace with hash -467171487, now seen corresponding path program 1 times [2022-03-20 12:13:08,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:08,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760892279] [2022-03-20 12:13:08,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:08,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:08,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:08,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:08,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:08,364 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-03-20 12:13:08,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:08,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760892279] [2022-03-20 12:13:08,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760892279] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:08,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:08,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:13:08,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985467199] [2022-03-20 12:13:08,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:08,365 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:13:08,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:08,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:13:08,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:13:08,365 INFO L87 Difference]: Start difference. First operand 2421 states and 3515 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 12:13:10,379 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 12:13:10,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:10,809 INFO L93 Difference]: Finished difference Result 4810 states and 6862 transitions. [2022-03-20 12:13:10,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:13:10,809 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 207 [2022-03-20 12:13:10,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:10,813 INFO L225 Difference]: With dead ends: 4810 [2022-03-20 12:13:10,813 INFO L226 Difference]: Without dead ends: 2395 [2022-03-20 12:13:10,816 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 12:13:10,817 INFO L913 BasicCegarLoop]: 103 mSDtfsCounter, 79 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:10,817 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 292 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 376 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:13:10,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2395 states. [2022-03-20 12:13:10,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2395 to 2208. [2022-03-20 12:13:10,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2208 states, 2203 states have (on average 1.4176123467998185) internal successors, (3123), 2203 states have internal predecessors, (3123), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:10,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 3127 transitions. [2022-03-20 12:13:10,861 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 3127 transitions. Word has length 207 [2022-03-20 12:13:10,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:10,862 INFO L478 AbstractCegarLoop]: Abstraction has 2208 states and 3127 transitions. [2022-03-20 12:13:10,862 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 12:13:10,862 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 3127 transitions. [2022-03-20 12:13:10,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-03-20 12:13:10,865 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:10,865 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 7, 5, 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, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:13:10,865 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-20 12:13:10,865 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:10,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:10,866 INFO L85 PathProgramCache]: Analyzing trace with hash 148358284, now seen corresponding path program 1 times [2022-03-20 12:13:10,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:10,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320935515] [2022-03-20 12:13:10,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:10,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:10,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:11,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:11,069 INFO L134 CoverageAnalysis]: Checked inductivity of 686 backedges. 416 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-03-20 12:13:11,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:11,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320935515] [2022-03-20 12:13:11,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320935515] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:11,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:11,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:13:11,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634980738] [2022-03-20 12:13:11,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:11,070 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:13:11,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:11,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:13:11,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:13:11,071 INFO L87 Difference]: Start difference. First operand 2208 states and 3127 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 12:13:13,080 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 12:13:13,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:13,463 INFO L93 Difference]: Finished difference Result 4872 states and 6886 transitions. [2022-03-20 12:13:13,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:13:13,464 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 225 [2022-03-20 12:13:13,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:13,467 INFO L225 Difference]: With dead ends: 4872 [2022-03-20 12:13:13,468 INFO L226 Difference]: Without dead ends: 2680 [2022-03-20 12:13:13,471 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 12:13:13,472 INFO L913 BasicCegarLoop]: 206 mSDtfsCounter, 57 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:13,476 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 504 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 446 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:13:13,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2680 states. [2022-03-20 12:13:13,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2680 to 2368. [2022-03-20 12:13:13,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2368 states, 2363 states have (on average 1.4130342784595853) internal successors, (3339), 2363 states have internal predecessors, (3339), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:13,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2368 states to 2368 states and 3343 transitions. [2022-03-20 12:13:13,526 INFO L78 Accepts]: Start accepts. Automaton has 2368 states and 3343 transitions. Word has length 225 [2022-03-20 12:13:13,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:13,527 INFO L478 AbstractCegarLoop]: Abstraction has 2368 states and 3343 transitions. [2022-03-20 12:13:13,527 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 12:13:13,527 INFO L276 IsEmpty]: Start isEmpty. Operand 2368 states and 3343 transitions. [2022-03-20 12:13:13,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-03-20 12:13:13,531 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:13,531 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 7, 5, 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, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:13:13,531 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-20 12:13:13,531 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:13,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:13,531 INFO L85 PathProgramCache]: Analyzing trace with hash 931737259, now seen corresponding path program 1 times [2022-03-20 12:13:13,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:13,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107111737] [2022-03-20 12:13:13,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:13,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:13,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:13,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:13,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:13,711 INFO L134 CoverageAnalysis]: Checked inductivity of 686 backedges. 416 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-03-20 12:13:13,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:13,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107111737] [2022-03-20 12:13:13,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107111737] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:13,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:13,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:13:13,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906335510] [2022-03-20 12:13:13,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:13,712 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:13:13,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:13,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:13:13,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:13:13,713 INFO L87 Difference]: Start difference. First operand 2368 states and 3343 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 12:13:15,722 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 12:13:16,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:16,124 INFO L93 Difference]: Finished difference Result 4899 states and 6877 transitions. [2022-03-20 12:13:16,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:13:16,124 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 225 [2022-03-20 12:13:16,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:16,128 INFO L225 Difference]: With dead ends: 4899 [2022-03-20 12:13:16,128 INFO L226 Difference]: Without dead ends: 2547 [2022-03-20 12:13:16,131 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 12:13:16,131 INFO L913 BasicCegarLoop]: 111 mSDtfsCounter, 99 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:16,132 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 308 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 381 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:13:16,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2547 states. [2022-03-20 12:13:16,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2547 to 2204. [2022-03-20 12:13:16,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2204 states, 2199 states have (on average 1.4024556616643928) internal successors, (3084), 2199 states have internal predecessors, (3084), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:16,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2204 states to 2204 states and 3088 transitions. [2022-03-20 12:13:16,196 INFO L78 Accepts]: Start accepts. Automaton has 2204 states and 3088 transitions. Word has length 225 [2022-03-20 12:13:16,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:16,196 INFO L478 AbstractCegarLoop]: Abstraction has 2204 states and 3088 transitions. [2022-03-20 12:13:16,196 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 12:13:16,196 INFO L276 IsEmpty]: Start isEmpty. Operand 2204 states and 3088 transitions. [2022-03-20 12:13:16,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-03-20 12:13:16,199 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:16,199 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:13:16,199 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-20 12:13:16,199 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:16,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:16,200 INFO L85 PathProgramCache]: Analyzing trace with hash 845810097, now seen corresponding path program 1 times [2022-03-20 12:13:16,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:16,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142104737] [2022-03-20 12:13:16,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:16,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:16,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:16,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:16,369 INFO L134 CoverageAnalysis]: Checked inductivity of 585 backedges. 343 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2022-03-20 12:13:16,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:16,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142104737] [2022-03-20 12:13:16,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142104737] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:16,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:16,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:13:16,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421756635] [2022-03-20 12:13:16,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:16,370 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:13:16,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:16,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:13:16,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:13:16,370 INFO L87 Difference]: Start difference. First operand 2204 states and 3088 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:18,378 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 12:13:18,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:18,785 INFO L93 Difference]: Finished difference Result 5076 states and 7068 transitions. [2022-03-20 12:13:18,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:13:18,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 235 [2022-03-20 12:13:18,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:18,793 INFO L225 Difference]: With dead ends: 5076 [2022-03-20 12:13:18,793 INFO L226 Difference]: Without dead ends: 2888 [2022-03-20 12:13:18,795 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 12:13:18,796 INFO L913 BasicCegarLoop]: 111 mSDtfsCounter, 85 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 38 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:18,796 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 308 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:13:18,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2888 states. [2022-03-20 12:13:18,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2888 to 2532. [2022-03-20 12:13:18,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2532 states, 2527 states have (on average 1.3977047882865057) internal successors, (3532), 2527 states have internal predecessors, (3532), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:18,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2532 states to 2532 states and 3536 transitions. [2022-03-20 12:13:18,847 INFO L78 Accepts]: Start accepts. Automaton has 2532 states and 3536 transitions. Word has length 235 [2022-03-20 12:13:18,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:18,848 INFO L478 AbstractCegarLoop]: Abstraction has 2532 states and 3536 transitions. [2022-03-20 12:13:18,848 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:18,848 INFO L276 IsEmpty]: Start isEmpty. Operand 2532 states and 3536 transitions. [2022-03-20 12:13:18,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-03-20 12:13:18,851 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:18,851 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:13:18,851 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-20 12:13:18,851 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:18,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:18,852 INFO L85 PathProgramCache]: Analyzing trace with hash -224019216, now seen corresponding path program 1 times [2022-03-20 12:13:18,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:18,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479277011] [2022-03-20 12:13:18,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:18,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:18,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:19,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:19,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:19,024 INFO L134 CoverageAnalysis]: Checked inductivity of 587 backedges. 339 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-03-20 12:13:19,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:19,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479277011] [2022-03-20 12:13:19,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479277011] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:13:19,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:13:19,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:13:19,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650845518] [2022-03-20 12:13:19,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:13:19,025 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:13:19,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 12:13:19,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:13:19,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:13:19,026 INFO L87 Difference]: Start difference. First operand 2532 states and 3536 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:21,033 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 12:13:21,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:13:21,434 INFO L93 Difference]: Finished difference Result 5344 states and 7440 transitions. [2022-03-20 12:13:21,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:13:21,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 235 [2022-03-20 12:13:21,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:13:21,452 INFO L225 Difference]: With dead ends: 5344 [2022-03-20 12:13:21,452 INFO L226 Difference]: Without dead ends: 2828 [2022-03-20 12:13:21,455 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 12:13:21,456 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 21 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:13:21,456 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 478 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 371 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:13:21,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2828 states. [2022-03-20 12:13:21,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2828 to 2756. [2022-03-20 12:13:21,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2756 states, 2751 states have (on average 1.3914940021810251) internal successors, (3828), 2751 states have internal predecessors, (3828), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:21,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2756 states to 2756 states and 3832 transitions. [2022-03-20 12:13:21,567 INFO L78 Accepts]: Start accepts. Automaton has 2756 states and 3832 transitions. Word has length 235 [2022-03-20 12:13:21,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:13:21,568 INFO L478 AbstractCegarLoop]: Abstraction has 2756 states and 3832 transitions. [2022-03-20 12:13:21,568 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:13:21,568 INFO L276 IsEmpty]: Start isEmpty. Operand 2756 states and 3832 transitions. [2022-03-20 12:13:21,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-03-20 12:13:21,572 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:13:21,573 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:13:21,573 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-20 12:13:21,573 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:13:21,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:13:21,573 INFO L85 PathProgramCache]: Analyzing trace with hash 831559952, now seen corresponding path program 1 times [2022-03-20 12:13:21,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:13:21,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281479478] [2022-03-20 12:13:21,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:21,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:13:23,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:24,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:13:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:24,204 INFO L134 CoverageAnalysis]: Checked inductivity of 585 backedges. 2 proven. 282 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-03-20 12:13:24,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:13:24,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281479478] [2022-03-20 12:13:24,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281479478] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 12:13:24,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564727633] [2022-03-20 12:13:24,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:13:24,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 12:13:24,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:13:24,206 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 12:13:24,209 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 12:13:25,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:13:25,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 1774 conjuncts, 231 conjunts are in the unsatisfiable core [2022-03-20 12:13:25,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 12:13:25,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:13:25,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:13:25,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:13:26,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 12:13:29,785 INFO L190 IndexEqualityManager]: detected not equals via solver