/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/openssl/s3_clnt.blast.04.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-06 13:45:11,426 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-06 13:45:11,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-06 13:45:11,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-06 13:45:11,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-06 13:45:11,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-06 13:45:11,467 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-06 13:45:11,473 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-06 13:45:11,475 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-06 13:45:11,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-06 13:45:11,481 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-06 13:45:11,482 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-06 13:45:11,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-06 13:45:11,483 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-06 13:45:11,484 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-06 13:45:11,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-06 13:45:11,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-06 13:45:11,485 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-06 13:45:11,487 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-06 13:45:11,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-06 13:45:11,494 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-06 13:45:11,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-06 13:45:11,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-06 13:45:11,497 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-06 13:45:11,499 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-06 13:45:11,506 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-06 13:45:11,507 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-06 13:45:11,507 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-06 13:45:11,508 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-06 13:45:11,508 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-06 13:45:11,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-04-06 13:45:11,512 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-06 13:45:11,513 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-06 13:45:11,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-06 13:45:11,518 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-04-06 13:45:11,547 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-06 13:45:11,547 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-06 13:45:11,548 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-06 13:45:11,548 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-06 13:45:11,549 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-06 13:45:11,549 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-06 13:45:11,549 INFO L138 SettingsManager]: * Use SBE=true [2022-04-06 13:45:11,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-06 13:45:11,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-06 13:45:11,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-06 13:45:11,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-06 13:45:11,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-06 13:45:11,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-06 13:45:11,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-06 13:45:11,551 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-06 13:45:11,551 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-06 13:45:11,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-06 13:45:11,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-06 13:45:11,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-06 13:45:11,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 13:45:11,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-06 13:45:11,552 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-06 13:45:11,552 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-06 13:45:11,552 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-06 13:45:11,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-06 13:45:11,553 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-06 13:45:11,553 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-06 13:45:11,553 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-06 13:45:11,555 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-06 13:45:11,556 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-06 13:45:11,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-06 13:45:11,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-06 13:45:11,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-06 13:45:11,781 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-06 13:45:11,781 INFO L275 PluginConnector]: CDTParser initialized [2022-04-06 13:45:11,782 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_clnt.blast.04.i.cil-2.c [2022-04-06 13:45:11,840 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4975fefb/74655ad495b04163ac6b96a09ca7d263/FLAG4647150b5 [2022-04-06 13:45:12,322 INFO L306 CDTParser]: Found 1 translation units. [2022-04-06 13:45:12,322 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.04.i.cil-2.c [2022-04-06 13:45:12,351 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4975fefb/74655ad495b04163ac6b96a09ca7d263/FLAG4647150b5 [2022-04-06 13:45:12,580 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4975fefb/74655ad495b04163ac6b96a09ca7d263 [2022-04-06 13:45:12,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-06 13:45:12,583 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-06 13:45:12,584 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-06 13:45:12,585 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-06 13:45:12,587 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-06 13:45:12,588 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 01:45:12" (1/1) ... [2022-04-06 13:45:12,589 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@358d349f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:45:12, skipping insertion in model container [2022-04-06 13:45:12,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 01:45:12" (1/1) ... [2022-04-06 13:45:12,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-06 13:45:12,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-06 13:45:13,021 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.04.i.cil-2.c[65405,65418] [2022-04-06 13:45:13,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 13:45:13,050 INFO L203 MainTranslator]: Completed pre-run [2022-04-06 13:45:13,163 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.04.i.cil-2.c[65405,65418] [2022-04-06 13:45:13,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 13:45:13,186 INFO L208 MainTranslator]: Completed translation [2022-04-06 13:45:13,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:45:13 WrapperNode [2022-04-06 13:45:13,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-06 13:45:13,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-06 13:45:13,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-06 13:45:13,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-06 13:45:13,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:45:13" (1/1) ... [2022-04-06 13:45:13,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:45:13" (1/1) ... [2022-04-06 13:45:13,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:45:13" (1/1) ... [2022-04-06 13:45:13,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:45:13" (1/1) ... [2022-04-06 13:45:13,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:45:13" (1/1) ... [2022-04-06 13:45:13,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:45:13" (1/1) ... [2022-04-06 13:45:13,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:45:13" (1/1) ... [2022-04-06 13:45:13,288 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-06 13:45:13,289 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-06 13:45:13,289 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-06 13:45:13,289 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-06 13:45:13,307 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:45:13" (1/1) ... [2022-04-06 13:45:13,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 13:45:13,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 13:45:13,341 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) [2022-04-06 13:45:13,360 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 [2022-04-06 13:45:13,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-06 13:45:13,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-06 13:45:13,377 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-06 13:45:13,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2022-04-06 13:45:13,378 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2022-04-06 13:45:13,378 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-06 13:45:13,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-04-06 13:45:13,379 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-04-06 13:45:13,379 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-04-06 13:45:13,379 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-04-06 13:45:13,379 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-06 13:45:13,380 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-06 13:45:13,380 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-06 13:45:13,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-06 13:45:13,380 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-04-06 13:45:13,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-06 13:45:13,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-06 13:45:13,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-06 13:45:13,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-06 13:45:13,380 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-04-06 13:45:13,380 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2022-04-06 13:45:13,380 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-04-06 13:45:13,381 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-04-06 13:45:13,381 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2022-04-06 13:45:13,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-04-06 13:45:13,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-06 13:45:13,381 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-06 13:45:13,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-06 13:45:13,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-06 13:45:13,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-06 13:45:13,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-06 13:45:13,381 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-04-06 13:45:13,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-04-06 13:45:13,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-06 13:45:13,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-06 13:45:13,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-06 13:45:13,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-04-06 13:45:13,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-04-06 13:45:13,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-06 13:45:13,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-04-06 13:45:13,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-06 13:45:13,548 INFO L234 CfgBuilder]: Building ICFG [2022-04-06 13:45:13,550 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-06 13:45:15,029 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-06 13:45:15,393 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-04-06 13:45:15,393 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-04-06 13:45:15,405 INFO L275 CfgBuilder]: Performing block encoding [2022-04-06 13:45:15,412 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-06 13:45:15,412 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-06 13:45:15,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 01:45:15 BoogieIcfgContainer [2022-04-06 13:45:15,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-06 13:45:15,415 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-06 13:45:15,415 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-06 13:45:15,416 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-06 13:45:15,418 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 01:45:15" (1/1) ... [2022-04-06 13:45:15,420 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-04-06 13:45:15,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 01:45:15 BasicIcfg [2022-04-06 13:45:15,471 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-06 13:45:15,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-06 13:45:15,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-06 13:45:15,478 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-06 13:45:15,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 01:45:12" (1/4) ... [2022-04-06 13:45:15,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f6dff70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 01:45:15, skipping insertion in model container [2022-04-06 13:45:15,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 01:45:13" (2/4) ... [2022-04-06 13:45:15,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f6dff70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 01:45:15, skipping insertion in model container [2022-04-06 13:45:15,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 01:45:15" (3/4) ... [2022-04-06 13:45:15,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f6dff70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 01:45:15, skipping insertion in model container [2022-04-06 13:45:15,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 01:45:15" (4/4) ... [2022-04-06 13:45:15,483 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.04.i.cil-2.cqvasr [2022-04-06 13:45:15,491 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-06 13:45:15,492 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-06 13:45:15,540 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-06 13:45:15,547 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 [2022-04-06 13:45:15,547 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-06 13:45:15,578 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 130 states have (on average 1.6923076923076923) internal successors, (220), 131 states have internal predecessors, (220), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-06 13:45:15,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-04-06 13:45:15,585 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:45:15,586 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] [2022-04-06 13:45:15,586 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:45:15,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:45:15,590 INFO L85 PathProgramCache]: Analyzing trace with hash 878389628, now seen corresponding path program 1 times [2022-04-06 13:45:15,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:45:15,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148893203] [2022-04-06 13:45:15,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:45:15,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:45:15,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:45:16,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:45:16,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:45:16,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 13:45:16,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:45:16,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148893203] [2022-04-06 13:45:16,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148893203] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:45:16,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:45:16,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:45:16,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271602755] [2022-04-06 13:45:16,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:45:16,164 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:45:16,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:45:16,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:45:16,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:45:16,188 INFO L87 Difference]: Start difference. First operand has 138 states, 130 states have (on average 1.6923076923076923) internal successors, (220), 131 states have internal predecessors, (220), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:18,219 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 [] [2022-04-06 13:45:18,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:45:18,724 INFO L93 Difference]: Finished difference Result 267 states and 442 transitions. [2022-04-06 13:45:18,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:45:18,727 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 [2022-04-06 13:45:18,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:45:18,734 INFO L225 Difference]: With dead ends: 267 [2022-04-06 13:45:18,734 INFO L226 Difference]: Without dead ends: 122 [2022-04-06 13:45:18,739 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 [2022-04-06 13:45:18,743 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 7 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-06 13:45:18,744 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 555 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 320 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-06 13:45:18,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-04-06 13:45:18,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2022-04-06 13:45:18,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 116 states have (on average 1.5) internal successors, (174), 116 states have internal predecessors, (174), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:18,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 178 transitions. [2022-04-06 13:45:18,781 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 178 transitions. Word has length 30 [2022-04-06 13:45:18,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:45:18,782 INFO L478 AbstractCegarLoop]: Abstraction has 121 states and 178 transitions. [2022-04-06 13:45:18,782 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) [2022-04-06 13:45:18,782 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 178 transitions. [2022-04-06 13:45:18,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-04-06 13:45:18,783 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:45:18,784 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:45:18,784 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-06 13:45:18,784 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:45:18,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:45:18,785 INFO L85 PathProgramCache]: Analyzing trace with hash -189680389, now seen corresponding path program 1 times [2022-04-06 13:45:18,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:45:18,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823558898] [2022-04-06 13:45:18,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:45:18,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:45:18,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:45:19,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:45:19,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:45:19,085 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-06 13:45:19,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:45:19,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823558898] [2022-04-06 13:45:19,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823558898] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:45:19,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:45:19,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:45:19,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450733177] [2022-04-06 13:45:19,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:45:19,089 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:45:19,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:45:19,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:45:19,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:45:19,090 INFO L87 Difference]: Start difference. First operand 121 states and 178 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:21,106 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 [] [2022-04-06 13:45:21,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:45:21,439 INFO L93 Difference]: Finished difference Result 327 states and 490 transitions. [2022-04-06 13:45:21,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:45:21,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-04-06 13:45:21,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:45:21,443 INFO L225 Difference]: With dead ends: 327 [2022-04-06 13:45:21,444 INFO L226 Difference]: Without dead ends: 222 [2022-04-06 13:45:21,444 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 [2022-04-06 13:45:21,445 INFO L913 BasicCegarLoop]: 166 mSDtfsCounter, 124 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:45:21,446 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 319 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 190 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 13:45:21,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-04-06 13:45:21,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2022-04-06 13:45:21,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.4838709677419355) internal successors, (322), 217 states have internal predecessors, (322), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:21,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 326 transitions. [2022-04-06 13:45:21,462 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 326 transitions. Word has length 44 [2022-04-06 13:45:21,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:45:21,463 INFO L478 AbstractCegarLoop]: Abstraction has 222 states and 326 transitions. [2022-04-06 13:45:21,463 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:21,463 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 326 transitions. [2022-04-06 13:45:21,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-04-06 13:45:21,465 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:45:21,465 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:45:21,465 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-06 13:45:21,465 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:45:21,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:45:21,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1951828473, now seen corresponding path program 1 times [2022-04-06 13:45:21,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:45:21,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968717286] [2022-04-06 13:45:21,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:45:21,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:45:21,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:45:21,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:45:21,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:45:21,703 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-06 13:45:21,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:45:21,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968717286] [2022-04-06 13:45:21,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968717286] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:45:21,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:45:21,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:45:21,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473544820] [2022-04-06 13:45:21,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:45:21,705 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:45:21,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:45:21,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:45:21,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:45:21,706 INFO L87 Difference]: Start difference. First operand 222 states and 326 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:23,718 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 [] [2022-04-06 13:45:24,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:45:24,206 INFO L93 Difference]: Finished difference Result 362 states and 537 transitions. [2022-04-06 13:45:24,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:45:24,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2022-04-06 13:45:24,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:45:24,209 INFO L225 Difference]: With dead ends: 362 [2022-04-06 13:45:24,209 INFO L226 Difference]: Without dead ends: 257 [2022-04-06 13:45:24,210 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 [2022-04-06 13:45:24,211 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 31 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-06 13:45:24,211 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 484 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 359 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-06 13:45:24,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-04-06 13:45:24,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 240. [2022-04-06 13:45:24,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 235 states have (on average 1.4978723404255319) internal successors, (352), 235 states have internal predecessors, (352), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:24,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 356 transitions. [2022-04-06 13:45:24,226 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 356 transitions. Word has length 59 [2022-04-06 13:45:24,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:45:24,226 INFO L478 AbstractCegarLoop]: Abstraction has 240 states and 356 transitions. [2022-04-06 13:45:24,226 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:24,226 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 356 transitions. [2022-04-06 13:45:24,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-04-06 13:45:24,229 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:45:24,229 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:45:24,229 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-06 13:45:24,229 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:45:24,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:45:24,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1231550136, now seen corresponding path program 2 times [2022-04-06 13:45:24,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:45:24,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615196006] [2022-04-06 13:45:24,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:45:24,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:45:24,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:45:24,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:45:24,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:45:24,439 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-06 13:45:24,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:45:24,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615196006] [2022-04-06 13:45:24,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615196006] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:45:24,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:45:24,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:45:24,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822250948] [2022-04-06 13:45:24,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:45:24,442 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:45:24,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:45:24,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:45:24,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:45:24,443 INFO L87 Difference]: Start difference. First operand 240 states and 356 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:26,454 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 [] [2022-04-06 13:45:26,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:45:26,913 INFO L93 Difference]: Finished difference Result 645 states and 966 transitions. [2022-04-06 13:45:26,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:45:26,914 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73 [2022-04-06 13:45:26,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:45:26,917 INFO L225 Difference]: With dead ends: 645 [2022-04-06 13:45:26,917 INFO L226 Difference]: Without dead ends: 421 [2022-04-06 13:45:26,922 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 [2022-04-06 13:45:26,925 INFO L913 BasicCegarLoop]: 104 mSDtfsCounter, 112 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:45:26,926 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 296 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 379 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:45:26,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-04-06 13:45:26,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 262. [2022-04-06 13:45:26,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 257 states have (on average 1.490272373540856) internal successors, (383), 257 states have internal predecessors, (383), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:26,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 387 transitions. [2022-04-06 13:45:26,951 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 387 transitions. Word has length 73 [2022-04-06 13:45:26,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:45:26,952 INFO L478 AbstractCegarLoop]: Abstraction has 262 states and 387 transitions. [2022-04-06 13:45:26,952 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:26,952 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 387 transitions. [2022-04-06 13:45:26,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-04-06 13:45:26,954 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:45:26,954 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:45:26,954 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-06 13:45:26,954 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:45:26,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:45:26,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1593666200, now seen corresponding path program 1 times [2022-04-06 13:45:26,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:45:26,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905813600] [2022-04-06 13:45:26,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:45:26,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:45:27,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:45:27,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:45:27,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:45:27,203 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-06 13:45:27,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:45:27,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905813600] [2022-04-06 13:45:27,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905813600] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:45:27,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:45:27,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:45:27,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968755300] [2022-04-06 13:45:27,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:45:27,205 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:45:27,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:45:27,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:45:27,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:45:27,205 INFO L87 Difference]: Start difference. First operand 262 states and 387 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:28,655 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:45:30,674 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:45:32,695 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:45:34,717 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 [] [2022-04-06 13:45:35,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:45:35,187 INFO L93 Difference]: Finished difference Result 668 states and 995 transitions. [2022-04-06 13:45:35,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:45:35,188 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73 [2022-04-06 13:45:35,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:45:35,190 INFO L225 Difference]: With dead ends: 668 [2022-04-06 13:45:35,190 INFO L226 Difference]: Without dead ends: 422 [2022-04-06 13:45:35,191 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 [2022-04-06 13:45:35,192 INFO L913 BasicCegarLoop]: 97 mSDtfsCounter, 119 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 46 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-04-06 13:45:35,192 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 278 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 383 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-04-06 13:45:35,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2022-04-06 13:45:35,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 264. [2022-04-06 13:45:35,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 259 states have (on average 1.4826254826254825) internal successors, (384), 259 states have internal predecessors, (384), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:35,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 388 transitions. [2022-04-06 13:45:35,208 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 388 transitions. Word has length 73 [2022-04-06 13:45:35,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:45:35,210 INFO L478 AbstractCegarLoop]: Abstraction has 264 states and 388 transitions. [2022-04-06 13:45:35,210 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:35,210 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 388 transitions. [2022-04-06 13:45:35,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-04-06 13:45:35,219 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:45:35,219 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:45:35,220 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-06 13:45:35,220 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:45:35,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:45:35,220 INFO L85 PathProgramCache]: Analyzing trace with hash 209061239, now seen corresponding path program 1 times [2022-04-06 13:45:35,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:45:35,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937501097] [2022-04-06 13:45:35,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:45:35,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:45:35,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:45:35,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:45:35,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:45:35,433 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-06 13:45:35,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:45:35,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937501097] [2022-04-06 13:45:35,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937501097] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:45:35,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:45:35,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:45:35,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097196645] [2022-04-06 13:45:35,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:45:35,436 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:45:35,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:45:35,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:45:35,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:45:35,437 INFO L87 Difference]: Start difference. First operand 264 states and 388 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:37,449 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 [] [2022-04-06 13:45:37,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:45:37,911 INFO L93 Difference]: Finished difference Result 670 states and 993 transitions. [2022-04-06 13:45:37,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:45:37,911 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2022-04-06 13:45:37,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:45:37,914 INFO L225 Difference]: With dead ends: 670 [2022-04-06 13:45:37,914 INFO L226 Difference]: Without dead ends: 422 [2022-04-06 13:45:37,914 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 [2022-04-06 13:45:37,915 INFO L913 BasicCegarLoop]: 108 mSDtfsCounter, 117 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:45:37,915 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 300 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 394 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:45:37,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2022-04-06 13:45:37,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 266. [2022-04-06 13:45:37,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 261 states have (on average 1.475095785440613) internal successors, (385), 261 states have internal predecessors, (385), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:37,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 389 transitions. [2022-04-06 13:45:37,925 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 389 transitions. Word has length 74 [2022-04-06 13:45:37,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:45:37,925 INFO L478 AbstractCegarLoop]: Abstraction has 266 states and 389 transitions. [2022-04-06 13:45:37,925 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:37,926 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 389 transitions. [2022-04-06 13:45:37,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-04-06 13:45:37,926 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:45:37,927 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:45:37,927 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-06 13:45:37,927 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:45:37,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:45:37,927 INFO L85 PathProgramCache]: Analyzing trace with hash 281244916, now seen corresponding path program 1 times [2022-04-06 13:45:37,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:45:37,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557557294] [2022-04-06 13:45:37,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:45:37,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:45:38,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:45:38,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:45:38,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:45:38,136 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-06 13:45:38,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:45:38,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557557294] [2022-04-06 13:45:38,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557557294] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:45:38,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:45:38,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:45:38,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646138644] [2022-04-06 13:45:38,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:45:38,137 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:45:38,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:45:38,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:45:38,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:45:38,138 INFO L87 Difference]: Start difference. First operand 266 states and 389 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:40,152 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 [] [2022-04-06 13:45:40,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:45:40,585 INFO L93 Difference]: Finished difference Result 672 states and 991 transitions. [2022-04-06 13:45:40,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:45:40,586 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 [2022-04-06 13:45:40,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:45:40,588 INFO L225 Difference]: With dead ends: 672 [2022-04-06 13:45:40,588 INFO L226 Difference]: Without dead ends: 422 [2022-04-06 13:45:40,589 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 [2022-04-06 13:45:40,589 INFO L913 BasicCegarLoop]: 97 mSDtfsCounter, 115 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:45:40,590 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:45:40,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2022-04-06 13:45:40,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 268. [2022-04-06 13:45:40,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 263 states have (on average 1.467680608365019) internal successors, (386), 263 states have internal predecessors, (386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:40,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 390 transitions. [2022-04-06 13:45:40,600 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 390 transitions. Word has length 75 [2022-04-06 13:45:40,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:45:40,600 INFO L478 AbstractCegarLoop]: Abstraction has 268 states and 390 transitions. [2022-04-06 13:45:40,600 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) [2022-04-06 13:45:40,601 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 390 transitions. [2022-04-06 13:45:40,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-04-06 13:45:40,601 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:45:40,602 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:45:40,602 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-06 13:45:40,602 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:45:40,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:45:40,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1742080012, now seen corresponding path program 1 times [2022-04-06 13:45:40,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:45:40,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132924859] [2022-04-06 13:45:40,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:45:40,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:45:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:45:40,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:45:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:45:40,795 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-06 13:45:40,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:45:40,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132924859] [2022-04-06 13:45:40,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132924859] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:45:40,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:45:40,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:45:40,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429928576] [2022-04-06 13:45:40,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:45:40,797 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:45:40,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:45:40,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:45:40,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:45:40,798 INFO L87 Difference]: Start difference. First operand 268 states and 390 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:42,809 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 [] [2022-04-06 13:45:43,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:45:43,292 INFO L93 Difference]: Finished difference Result 674 states and 989 transitions. [2022-04-06 13:45:43,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:45:43,293 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 [2022-04-06 13:45:43,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:45:43,295 INFO L225 Difference]: With dead ends: 674 [2022-04-06 13:45:43,295 INFO L226 Difference]: Without dead ends: 422 [2022-04-06 13:45:43,296 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 [2022-04-06 13:45:43,296 INFO L913 BasicCegarLoop]: 97 mSDtfsCounter, 113 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-06 13:45:43,297 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-06 13:45:43,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2022-04-06 13:45:43,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 270. [2022-04-06 13:45:43,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 265 states have (on average 1.460377358490566) internal successors, (387), 265 states have internal predecessors, (387), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:43,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 391 transitions. [2022-04-06 13:45:43,307 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 391 transitions. Word has length 76 [2022-04-06 13:45:43,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:45:43,307 INFO L478 AbstractCegarLoop]: Abstraction has 270 states and 391 transitions. [2022-04-06 13:45:43,307 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) [2022-04-06 13:45:43,307 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 391 transitions. [2022-04-06 13:45:43,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-04-06 13:45:43,308 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:45:43,309 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:45:43,309 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-06 13:45:43,309 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:45:43,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:45:43,309 INFO L85 PathProgramCache]: Analyzing trace with hash 580115528, now seen corresponding path program 1 times [2022-04-06 13:45:43,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:45:43,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550279467] [2022-04-06 13:45:43,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:45:43,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:45:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:45:43,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:45:43,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:45:43,498 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-04-06 13:45:43,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:45:43,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550279467] [2022-04-06 13:45:43,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550279467] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:45:43,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:45:43,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:45:43,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481143514] [2022-04-06 13:45:43,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:45:43,500 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:45:43,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:45:43,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:45:43,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:45:43,501 INFO L87 Difference]: Start difference. First operand 270 states and 391 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:45,511 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 [] [2022-04-06 13:45:45,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:45:45,957 INFO L93 Difference]: Finished difference Result 542 states and 793 transitions. [2022-04-06 13:45:45,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:45:45,958 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2022-04-06 13:45:45,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:45:45,960 INFO L225 Difference]: With dead ends: 542 [2022-04-06 13:45:45,960 INFO L226 Difference]: Without dead ends: 404 [2022-04-06 13:45:45,960 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 [2022-04-06 13:45:45,961 INFO L913 BasicCegarLoop]: 315 mSDtfsCounter, 125 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:45:45,961 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 477 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 337 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:45:45,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-04-06 13:45:45,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2022-04-06 13:45:45,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 399 states have (on average 1.456140350877193) internal successors, (581), 399 states have internal predecessors, (581), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:45,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 585 transitions. [2022-04-06 13:45:45,974 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 585 transitions. Word has length 77 [2022-04-06 13:45:45,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:45:45,974 INFO L478 AbstractCegarLoop]: Abstraction has 404 states and 585 transitions. [2022-04-06 13:45:45,974 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:45,974 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 585 transitions. [2022-04-06 13:45:45,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-04-06 13:45:45,975 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:45:45,975 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:45:45,975 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-06 13:45:45,975 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:45:45,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:45:45,976 INFO L85 PathProgramCache]: Analyzing trace with hash 611135335, now seen corresponding path program 1 times [2022-04-06 13:45:45,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:45:45,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077579944] [2022-04-06 13:45:45,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:45:45,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:45:46,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:45:46,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:45:46,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:45:46,133 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-06 13:45:46,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:45:46,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077579944] [2022-04-06 13:45:46,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077579944] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:45:46,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:45:46,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:45:46,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704337888] [2022-04-06 13:45:46,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:45:46,135 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:45:46,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:45:46,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:45:46,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:45:46,136 INFO L87 Difference]: Start difference. First operand 404 states and 585 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:47,750 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:45:49,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:45:51,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:45:52,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:45:52,068 INFO L93 Difference]: Finished difference Result 700 states and 1016 transitions. [2022-04-06 13:45:52,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:45:52,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2022-04-06 13:45:52,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:45:52,070 INFO L225 Difference]: With dead ends: 700 [2022-04-06 13:45:52,070 INFO L226 Difference]: Without dead ends: 428 [2022-04-06 13:45:52,071 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 [2022-04-06 13:45:52,071 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 15 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-04-06 13:45:52,072 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 359 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 214 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-04-06 13:45:52,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-04-06 13:45:52,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 428. [2022-04-06 13:45:52,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 423 states have (on average 1.4491725768321513) internal successors, (613), 423 states have internal predecessors, (613), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:52,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 617 transitions. [2022-04-06 13:45:52,083 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 617 transitions. Word has length 77 [2022-04-06 13:45:52,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:45:52,083 INFO L478 AbstractCegarLoop]: Abstraction has 428 states and 617 transitions. [2022-04-06 13:45:52,084 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:52,084 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 617 transitions. [2022-04-06 13:45:52,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-04-06 13:45:52,084 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:45:52,085 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:45:52,085 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-06 13:45:52,085 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:45:52,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:45:52,085 INFO L85 PathProgramCache]: Analyzing trace with hash -522779701, now seen corresponding path program 1 times [2022-04-06 13:45:52,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:45:52,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091149356] [2022-04-06 13:45:52,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:45:52,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:45:52,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:45:52,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:45:52,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:45:52,326 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-04-06 13:45:52,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:45:52,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091149356] [2022-04-06 13:45:52,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091149356] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:45:52,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:45:52,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:45:52,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493226939] [2022-04-06 13:45:52,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:45:52,328 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:45:52,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:45:52,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:45:52,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:45:52,329 INFO L87 Difference]: Start difference. First operand 428 states and 617 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:54,340 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 [] [2022-04-06 13:45:54,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:45:54,787 INFO L93 Difference]: Finished difference Result 858 states and 1246 transitions. [2022-04-06 13:45:54,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:45:54,789 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2022-04-06 13:45:54,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:45:54,791 INFO L225 Difference]: With dead ends: 858 [2022-04-06 13:45:54,791 INFO L226 Difference]: Without dead ends: 562 [2022-04-06 13:45:54,792 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 [2022-04-06 13:45:54,793 INFO L913 BasicCegarLoop]: 314 mSDtfsCounter, 126 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:45:54,793 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 476 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 338 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:45:54,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2022-04-06 13:45:54,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2022-04-06 13:45:54,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 557 states have (on average 1.4488330341113107) internal successors, (807), 557 states have internal predecessors, (807), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:54,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 811 transitions. [2022-04-06 13:45:54,807 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 811 transitions. Word has length 97 [2022-04-06 13:45:54,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:45:54,807 INFO L478 AbstractCegarLoop]: Abstraction has 562 states and 811 transitions. [2022-04-06 13:45:54,807 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:54,807 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 811 transitions. [2022-04-06 13:45:54,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-04-06 13:45:54,809 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:45:54,809 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:45:54,809 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-06 13:45:54,809 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:45:54,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:45:54,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1194080795, now seen corresponding path program 1 times [2022-04-06 13:45:54,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:45:54,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759529290] [2022-04-06 13:45:54,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:45:54,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:45:54,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:45:54,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:45:54,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:45:54,974 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-04-06 13:45:54,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:45:54,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759529290] [2022-04-06 13:45:54,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759529290] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:45:54,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:45:54,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 13:45:54,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48770834] [2022-04-06 13:45:54,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:45:54,975 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:45:54,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:45:54,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:45:54,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 13:45:54,976 INFO L87 Difference]: Start difference. First operand 562 states and 811 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:56,986 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 [] [2022-04-06 13:45:57,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:45:57,464 INFO L93 Difference]: Finished difference Result 1127 states and 1635 transitions. [2022-04-06 13:45:57,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:45:57,465 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-04-06 13:45:57,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:45:57,468 INFO L225 Difference]: With dead ends: 1127 [2022-04-06 13:45:57,468 INFO L226 Difference]: Without dead ends: 697 [2022-04-06 13:45:57,469 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 [2022-04-06 13:45:57,470 INFO L913 BasicCegarLoop]: 315 mSDtfsCounter, 127 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-06 13:45:57,470 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 477 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 339 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-06 13:45:57,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2022-04-06 13:45:57,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 697. [2022-04-06 13:45:57,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 692 states have (on average 1.4479768786127167) internal successors, (1002), 692 states have internal predecessors, (1002), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:57,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 1006 transitions. [2022-04-06 13:45:57,487 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 1006 transitions. Word has length 118 [2022-04-06 13:45:57,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:45:57,487 INFO L478 AbstractCegarLoop]: Abstraction has 697 states and 1006 transitions. [2022-04-06 13:45:57,487 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:57,488 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 1006 transitions. [2022-04-06 13:45:57,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-04-06 13:45:57,489 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:45:57,489 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:45:57,490 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-06 13:45:57,490 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:45:57,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:45:57,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1203970458, now seen corresponding path program 1 times [2022-04-06 13:45:57,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:45:57,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771270605] [2022-04-06 13:45:57,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:45:57,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:45:57,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:45:57,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:45:57,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:45:57,688 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-04-06 13:45:57,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:45:57,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771270605] [2022-04-06 13:45:57,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771270605] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:45:57,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:45:57,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:45:57,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876083061] [2022-04-06 13:45:57,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:45:57,689 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:45:57,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:45:57,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:45:57,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:45:57,690 INFO L87 Difference]: Start difference. First operand 697 states and 1006 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:45:59,700 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 [] [2022-04-06 13:46:00,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:46:00,132 INFO L93 Difference]: Finished difference Result 1832 states and 2646 transitions. [2022-04-06 13:46:00,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:46:00,133 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-04-06 13:46:00,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:46:00,137 INFO L225 Difference]: With dead ends: 1832 [2022-04-06 13:46:00,137 INFO L226 Difference]: Without dead ends: 1151 [2022-04-06 13:46:00,139 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 [2022-04-06 13:46:00,140 INFO L913 BasicCegarLoop]: 98 mSDtfsCounter, 108 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:46:00,140 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 280 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:46:00,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2022-04-06 13:46:00,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 802. [2022-04-06 13:46:00,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 797 states have (on average 1.4454203262233376) internal successors, (1152), 797 states have internal predecessors, (1152), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:00,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1156 transitions. [2022-04-06 13:46:00,164 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1156 transitions. Word has length 139 [2022-04-06 13:46:00,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:46:00,164 INFO L478 AbstractCegarLoop]: Abstraction has 802 states and 1156 transitions. [2022-04-06 13:46:00,164 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:00,165 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1156 transitions. [2022-04-06 13:46:00,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-04-06 13:46:00,166 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:46:00,166 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:46:00,167 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-06 13:46:00,167 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:46:00,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:46:00,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1297688107, now seen corresponding path program 1 times [2022-04-06 13:46:00,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:46:00,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222277221] [2022-04-06 13:46:00,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:46:00,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:46:00,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:00,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:46:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:00,411 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-04-06 13:46:00,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:46:00,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222277221] [2022-04-06 13:46:00,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222277221] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:46:00,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:46:00,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:46:00,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800024471] [2022-04-06 13:46:00,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:46:00,413 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:46:00,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:46:00,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:46:00,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:46:00,414 INFO L87 Difference]: Start difference. First operand 802 states and 1156 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:02,425 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 [] [2022-04-06 13:46:02,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:46:02,860 INFO L93 Difference]: Finished difference Result 1962 states and 2841 transitions. [2022-04-06 13:46:02,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:46:02,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 140 [2022-04-06 13:46:02,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:46:02,865 INFO L225 Difference]: With dead ends: 1962 [2022-04-06 13:46:02,865 INFO L226 Difference]: Without dead ends: 1176 [2022-04-06 13:46:02,867 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 [2022-04-06 13:46:02,867 INFO L913 BasicCegarLoop]: 97 mSDtfsCounter, 106 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:46:02,867 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:46:02,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2022-04-06 13:46:02,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 832. [2022-04-06 13:46:02,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 827 states have (on average 1.4594921402660217) internal successors, (1207), 827 states have internal predecessors, (1207), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:02,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1211 transitions. [2022-04-06 13:46:02,893 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1211 transitions. Word has length 140 [2022-04-06 13:46:02,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:46:02,893 INFO L478 AbstractCegarLoop]: Abstraction has 832 states and 1211 transitions. [2022-04-06 13:46:02,893 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:02,894 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1211 transitions. [2022-04-06 13:46:02,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-04-06 13:46:02,896 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:46:02,896 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:46:02,896 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-06 13:46:02,896 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:46:02,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:46:02,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1111935820, now seen corresponding path program 1 times [2022-04-06 13:46:02,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:46:02,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296305572] [2022-04-06 13:46:02,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:46:02,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:46:03,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:03,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:46:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:03,133 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 205 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-04-06 13:46:03,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:46:03,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296305572] [2022-04-06 13:46:03,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296305572] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:46:03,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:46:03,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:46:03,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008828998] [2022-04-06 13:46:03,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:46:03,134 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:46:03,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:46:03,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:46:03,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:46:03,135 INFO L87 Difference]: Start difference. First operand 832 states and 1211 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:05,150 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 [] [2022-04-06 13:46:05,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:46:05,601 INFO L93 Difference]: Finished difference Result 1992 states and 2891 transitions. [2022-04-06 13:46:05,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:46:05,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-04-06 13:46:05,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:46:05,606 INFO L225 Difference]: With dead ends: 1992 [2022-04-06 13:46:05,606 INFO L226 Difference]: Without dead ends: 1176 [2022-04-06 13:46:05,610 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 [2022-04-06 13:46:05,611 INFO L913 BasicCegarLoop]: 99 mSDtfsCounter, 106 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:46:05,611 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 284 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:46:05,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2022-04-06 13:46:05,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 832. [2022-04-06 13:46:05,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 827 states have (on average 1.4474002418379686) internal successors, (1197), 827 states have internal predecessors, (1197), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:05,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1201 transitions. [2022-04-06 13:46:05,636 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1201 transitions. Word has length 157 [2022-04-06 13:46:05,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:46:05,637 INFO L478 AbstractCegarLoop]: Abstraction has 832 states and 1201 transitions. [2022-04-06 13:46:05,637 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) [2022-04-06 13:46:05,637 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1201 transitions. [2022-04-06 13:46:05,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-04-06 13:46:05,639 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:46:05,640 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:46:05,640 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-06 13:46:05,640 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:46:05,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:46:05,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1029170936, now seen corresponding path program 1 times [2022-04-06 13:46:05,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:46:05,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421575670] [2022-04-06 13:46:05,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:46:05,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:46:05,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:05,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:46:05,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:05,834 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 209 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-04-06 13:46:05,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:46:05,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421575670] [2022-04-06 13:46:05,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421575670] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:46:05,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:46:05,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:46:05,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713945582] [2022-04-06 13:46:05,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:46:05,837 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:46:05,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:46:05,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:46:05,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:46:05,838 INFO L87 Difference]: Start difference. First operand 832 states and 1201 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:07,855 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 [] [2022-04-06 13:46:08,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:46:08,320 INFO L93 Difference]: Finished difference Result 1934 states and 2798 transitions. [2022-04-06 13:46:08,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:46:08,321 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-04-06 13:46:08,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:46:08,343 INFO L225 Difference]: With dead ends: 1934 [2022-04-06 13:46:08,343 INFO L226 Difference]: Without dead ends: 1118 [2022-04-06 13:46:08,345 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 [2022-04-06 13:46:08,345 INFO L913 BasicCegarLoop]: 222 mSDtfsCounter, 75 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:46:08,345 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 533 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:46:08,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2022-04-06 13:46:08,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 908. [2022-04-06 13:46:08,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 903 states have (on average 1.4407530454042081) internal successors, (1301), 903 states have internal predecessors, (1301), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:08,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1305 transitions. [2022-04-06 13:46:08,369 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1305 transitions. Word has length 158 [2022-04-06 13:46:08,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:46:08,369 INFO L478 AbstractCegarLoop]: Abstraction has 908 states and 1305 transitions. [2022-04-06 13:46:08,371 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:08,371 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1305 transitions. [2022-04-06 13:46:08,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-04-06 13:46:08,374 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:46:08,374 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:46:08,374 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-06 13:46:08,374 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:46:08,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:46:08,375 INFO L85 PathProgramCache]: Analyzing trace with hash -2062176669, now seen corresponding path program 1 times [2022-04-06 13:46:08,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:46:08,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876374637] [2022-04-06 13:46:08,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:46:08,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:46:08,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:08,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:46:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:08,569 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-04-06 13:46:08,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:46:08,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876374637] [2022-04-06 13:46:08,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876374637] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:46:08,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:46:08,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:46:08,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223206382] [2022-04-06 13:46:08,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:46:08,570 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:46:08,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:46:08,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:46:08,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:46:08,571 INFO L87 Difference]: Start difference. First operand 908 states and 1305 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:10,581 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 [] [2022-04-06 13:46:11,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:46:11,006 INFO L93 Difference]: Finished difference Result 1850 states and 2667 transitions. [2022-04-06 13:46:11,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:46:11,007 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 172 [2022-04-06 13:46:11,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:46:11,011 INFO L225 Difference]: With dead ends: 1850 [2022-04-06 13:46:11,011 INFO L226 Difference]: Without dead ends: 1118 [2022-04-06 13:46:11,013 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 [2022-04-06 13:46:11,013 INFO L913 BasicCegarLoop]: 221 mSDtfsCounter, 77 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:46:11,014 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 531 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:46:11,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2022-04-06 13:46:11,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 908. [2022-04-06 13:46:11,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 903 states have (on average 1.4363233665559247) internal successors, (1297), 903 states have internal predecessors, (1297), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:11,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1301 transitions. [2022-04-06 13:46:11,037 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1301 transitions. Word has length 172 [2022-04-06 13:46:11,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:46:11,038 INFO L478 AbstractCegarLoop]: Abstraction has 908 states and 1301 transitions. [2022-04-06 13:46:11,038 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) [2022-04-06 13:46:11,038 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1301 transitions. [2022-04-06 13:46:11,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-04-06 13:46:11,040 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:46:11,040 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:46:11,041 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-06 13:46:11,041 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:46:11,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:46:11,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1106588088, now seen corresponding path program 1 times [2022-04-06 13:46:11,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:46:11,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046397386] [2022-04-06 13:46:11,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:46:11,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:46:11,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:11,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:46:11,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:11,256 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-04-06 13:46:11,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:46:11,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046397386] [2022-04-06 13:46:11,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046397386] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:46:11,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:46:11,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:46:11,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184407556] [2022-04-06 13:46:11,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:46:11,257 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:46:11,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:46:11,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:46:11,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:46:11,258 INFO L87 Difference]: Start difference. First operand 908 states and 1301 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:13,266 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 [] [2022-04-06 13:46:13,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:46:13,674 INFO L93 Difference]: Finished difference Result 1838 states and 2647 transitions. [2022-04-06 13:46:13,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:46:13,674 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-04-06 13:46:13,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:46:13,678 INFO L225 Difference]: With dead ends: 1838 [2022-04-06 13:46:13,678 INFO L226 Difference]: Without dead ends: 1106 [2022-04-06 13:46:13,680 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 13:46:13,681 INFO L913 BasicCegarLoop]: 218 mSDtfsCounter, 73 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:46:13,681 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 525 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:46:13,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2022-04-06 13:46:13,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 908. [2022-04-06 13:46:13,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 903 states have (on average 1.4318936877076411) internal successors, (1293), 903 states have internal predecessors, (1293), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:13,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1297 transitions. [2022-04-06 13:46:13,704 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1297 transitions. Word has length 173 [2022-04-06 13:46:13,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:46:13,705 INFO L478 AbstractCegarLoop]: Abstraction has 908 states and 1297 transitions. [2022-04-06 13:46:13,705 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:13,705 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1297 transitions. [2022-04-06 13:46:13,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-04-06 13:46:13,707 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:46:13,707 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:46:13,708 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-06 13:46:13,708 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:46:13,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:46:13,708 INFO L85 PathProgramCache]: Analyzing trace with hash -180209632, now seen corresponding path program 1 times [2022-04-06 13:46:13,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:46:13,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481095483] [2022-04-06 13:46:13,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:46:13,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:46:13,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:13,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:46:13,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:13,958 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 214 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-04-06 13:46:13,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:46:13,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481095483] [2022-04-06 13:46:13,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481095483] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:46:13,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:46:13,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:46:13,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571917754] [2022-04-06 13:46:13,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:46:13,960 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:46:13,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:46:13,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:46:13,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:46:13,961 INFO L87 Difference]: Start difference. First operand 908 states and 1297 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:15,972 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 [] [2022-04-06 13:46:16,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:46:16,348 INFO L93 Difference]: Finished difference Result 2259 states and 3218 transitions. [2022-04-06 13:46:16,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:46:16,351 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 175 [2022-04-06 13:46:16,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:46:16,356 INFO L225 Difference]: With dead ends: 2259 [2022-04-06 13:46:16,356 INFO L226 Difference]: Without dead ends: 1367 [2022-04-06 13:46:16,358 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 [2022-04-06 13:46:16,358 INFO L913 BasicCegarLoop]: 99 mSDtfsCounter, 90 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:46:16,359 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 282 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 389 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:46:16,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2022-04-06 13:46:16,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1098. [2022-04-06 13:46:16,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1098 states, 1093 states have (on average 1.4574565416285452) internal successors, (1593), 1093 states have internal predecessors, (1593), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:16,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1597 transitions. [2022-04-06 13:46:16,386 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1597 transitions. Word has length 175 [2022-04-06 13:46:16,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:46:16,386 INFO L478 AbstractCegarLoop]: Abstraction has 1098 states and 1597 transitions. [2022-04-06 13:46:16,387 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) [2022-04-06 13:46:16,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1597 transitions. [2022-04-06 13:46:16,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-04-06 13:46:16,389 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:46:16,389 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:46:16,389 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-06 13:46:16,390 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:46:16,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:46:16,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1515897942, now seen corresponding path program 1 times [2022-04-06 13:46:16,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:46:16,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486842040] [2022-04-06 13:46:16,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:46:16,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:46:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:16,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:46:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:16,571 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 214 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-04-06 13:46:16,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:46:16,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486842040] [2022-04-06 13:46:16,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486842040] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:46:16,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:46:16,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:46:16,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088229286] [2022-04-06 13:46:16,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:46:16,572 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:46:16,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:46:16,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:46:16,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:46:16,573 INFO L87 Difference]: Start difference. First operand 1098 states and 1597 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:18,584 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 [] [2022-04-06 13:46:18,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:46:18,909 INFO L93 Difference]: Finished difference Result 2226 states and 3233 transitions. [2022-04-06 13:46:18,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:46:18,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 176 [2022-04-06 13:46:18,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:46:18,913 INFO L225 Difference]: With dead ends: 2226 [2022-04-06 13:46:18,914 INFO L226 Difference]: Without dead ends: 1144 [2022-04-06 13:46:18,915 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 [2022-04-06 13:46:18,916 INFO L913 BasicCegarLoop]: 191 mSDtfsCounter, 19 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:46:18,916 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 471 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 340 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 13:46:18,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2022-04-06 13:46:18,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 1118. [2022-04-06 13:46:18,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1118 states, 1113 states have (on average 1.4564240790655885) internal successors, (1621), 1113 states have internal predecessors, (1621), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:18,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1118 states to 1118 states and 1625 transitions. [2022-04-06 13:46:18,940 INFO L78 Accepts]: Start accepts. Automaton has 1118 states and 1625 transitions. Word has length 176 [2022-04-06 13:46:18,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:46:18,941 INFO L478 AbstractCegarLoop]: Abstraction has 1118 states and 1625 transitions. [2022-04-06 13:46:18,941 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:18,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1118 states and 1625 transitions. [2022-04-06 13:46:18,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-04-06 13:46:18,944 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:46:18,944 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:46:18,944 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-06 13:46:18,944 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:46:18,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:46:18,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1807907067, now seen corresponding path program 1 times [2022-04-06 13:46:18,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:46:18,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716388430] [2022-04-06 13:46:18,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:46:18,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:46:19,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:19,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:46:19,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:19,194 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 107 proven. 3 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-04-06 13:46:19,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:46:19,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716388430] [2022-04-06 13:46:19,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716388430] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 13:46:19,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560658275] [2022-04-06 13:46:19,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:46:19,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 13:46:19,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 13:46:19,199 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) [2022-04-06 13:46:19,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-06 13:46:20,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:20,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 1548 conjuncts, 13 conjunts are in the unsatisfiable core [2022-04-06 13:46:20,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 13:46:20,178 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-04-06 13:46:20,179 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 [2022-04-06 13:46:20,185 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 [2022-04-06 13:46:20,191 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 [2022-04-06 13:46:20,201 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 [2022-04-06 13:46:20,433 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 [2022-04-06 13:46:20,606 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-04-06 13:46:20,618 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 [2022-04-06 13:46:20,661 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 13:46:20,661 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 [2022-04-06 13:46:20,861 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 13:46:20,861 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 [2022-04-06 13:46:20,925 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 [2022-04-06 13:46:20,943 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 102 proven. 70 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2022-04-06 13:46:20,944 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 13:46:21,191 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2022-04-06 13:46:21,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1560658275] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-06 13:46:21,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-06 13:46:21,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 5] total 13 [2022-04-06 13:46:21,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693713251] [2022-04-06 13:46:21,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:46:21,194 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:46:21,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:46:21,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:46:21,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-04-06 13:46:21,194 INFO L87 Difference]: Start difference. First operand 1118 states and 1625 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:23,204 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:46:23,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:46:23,480 INFO L93 Difference]: Finished difference Result 2668 states and 3858 transitions. [2022-04-06 13:46:23,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:46:23,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 180 [2022-04-06 13:46:23,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:46:23,486 INFO L225 Difference]: With dead ends: 2668 [2022-04-06 13:46:23,486 INFO L226 Difference]: Without dead ends: 1566 [2022-04-06 13:46:23,488 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-04-06 13:46:23,489 INFO L913 BasicCegarLoop]: 111 mSDtfsCounter, 92 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-06 13:46:23,489 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 310 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 214 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-04-06 13:46:23,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1566 states. [2022-04-06 13:46:23,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1566 to 1238. [2022-04-06 13:46:23,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1233 states have (on average 1.4525547445255473) internal successors, (1791), 1233 states have internal predecessors, (1791), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:23,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1795 transitions. [2022-04-06 13:46:23,522 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1795 transitions. Word has length 180 [2022-04-06 13:46:23,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:46:23,523 INFO L478 AbstractCegarLoop]: Abstraction has 1238 states and 1795 transitions. [2022-04-06 13:46:23,523 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:23,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1795 transitions. [2022-04-06 13:46:23,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-04-06 13:46:23,525 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:46:23,526 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:46:23,559 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-04-06 13:46:23,751 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-04-06 13:46:23,752 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:46:23,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:46:23,752 INFO L85 PathProgramCache]: Analyzing trace with hash -209595120, now seen corresponding path program 1 times [2022-04-06 13:46:23,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:46:23,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947799747] [2022-04-06 13:46:23,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:46:23,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:46:23,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:23,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:46:23,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:23,982 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2022-04-06 13:46:23,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:46:23,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947799747] [2022-04-06 13:46:23,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947799747] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:46:23,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:46:23,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:46:23,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281538901] [2022-04-06 13:46:23,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:46:23,983 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:46:23,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:46:23,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:46:23,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:46:23,984 INFO L87 Difference]: Start difference. First operand 1238 states and 1795 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:25,995 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 [] [2022-04-06 13:46:26,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:46:26,334 INFO L93 Difference]: Finished difference Result 2619 states and 3782 transitions. [2022-04-06 13:46:26,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:46:26,336 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 181 [2022-04-06 13:46:26,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:46:26,342 INFO L225 Difference]: With dead ends: 2619 [2022-04-06 13:46:26,342 INFO L226 Difference]: Without dead ends: 1397 [2022-04-06 13:46:26,345 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 [2022-04-06 13:46:26,349 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 22 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:46:26,350 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 474 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 350 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 13:46:26,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1397 states. [2022-04-06 13:46:26,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1397 to 1348. [2022-04-06 13:46:26,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1348 states, 1343 states have (on average 1.445271779597915) internal successors, (1941), 1343 states have internal predecessors, (1941), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:26,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 1945 transitions. [2022-04-06 13:46:26,383 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 1945 transitions. Word has length 181 [2022-04-06 13:46:26,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:46:26,383 INFO L478 AbstractCegarLoop]: Abstraction has 1348 states and 1945 transitions. [2022-04-06 13:46:26,383 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:26,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 1945 transitions. [2022-04-06 13:46:26,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-04-06 13:46:26,388 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:46:26,389 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:46:26,389 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-06 13:46:26,389 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:46:26,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:46:26,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1810219865, now seen corresponding path program 1 times [2022-04-06 13:46:26,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:46:26,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166319867] [2022-04-06 13:46:26,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:46:26,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:46:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:26,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:46:26,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:26,643 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 231 proven. 8 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-04-06 13:46:26,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:46:26,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166319867] [2022-04-06 13:46:26,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166319867] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 13:46:26,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231309841] [2022-04-06 13:46:26,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:46:26,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 13:46:26,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 13:46:26,648 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) [2022-04-06 13:46:26,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-06 13:46:27,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:27,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 1621 conjuncts, 23 conjunts are in the unsatisfiable core [2022-04-06 13:46:27,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 13:46:27,618 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-04-06 13:46:27,618 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 [2022-04-06 13:46:27,631 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 [2022-04-06 13:46:27,638 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 [2022-04-06 13:46:27,644 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 [2022-04-06 13:46:27,806 INFO L356 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-04-06 13:46:27,810 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 21 [2022-04-06 13:46:27,821 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 [2022-04-06 13:46:27,838 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 [2022-04-06 13:46:27,871 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-06 13:46:27,872 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 [2022-04-06 13:46:27,949 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-04-06 13:46:28,071 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-06 13:46:28,072 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 [2022-04-06 13:46:28,107 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 [2022-04-06 13:46:28,153 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 224 proven. 78 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2022-04-06 13:46:28,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 13:46:28,404 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 230 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2022-04-06 13:46:28,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231309841] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-06 13:46:28,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-06 13:46:28,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 10 [2022-04-06 13:46:28,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981140004] [2022-04-06 13:46:28,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:46:28,405 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 13:46:28,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:46:28,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 13:46:28,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-04-06 13:46:28,406 INFO L87 Difference]: Start difference. First operand 1348 states and 1945 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:30,412 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 [] [2022-04-06 13:46:30,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:46:30,678 INFO L93 Difference]: Finished difference Result 3020 states and 4354 transitions. [2022-04-06 13:46:30,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 13:46:30,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 199 [2022-04-06 13:46:30,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:46:30,683 INFO L225 Difference]: With dead ends: 3020 [2022-04-06 13:46:30,683 INFO L226 Difference]: Without dead ends: 1688 [2022-04-06 13:46:30,686 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-04-06 13:46:30,686 INFO L913 BasicCegarLoop]: 103 mSDtfsCounter, 108 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-06 13:46:30,687 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 288 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 209 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-04-06 13:46:30,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1688 states. [2022-04-06 13:46:30,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1688 to 1348. [2022-04-06 13:46:30,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1348 states, 1343 states have (on average 1.426656738644825) internal successors, (1916), 1343 states have internal predecessors, (1916), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:30,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 1920 transitions. [2022-04-06 13:46:30,720 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 1920 transitions. Word has length 199 [2022-04-06 13:46:30,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:46:30,720 INFO L478 AbstractCegarLoop]: Abstraction has 1348 states and 1920 transitions. [2022-04-06 13:46:30,720 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:30,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 1920 transitions. [2022-04-06 13:46:30,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-04-06 13:46:30,724 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:46:30,724 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:46:30,754 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-04-06 13:46:30,939 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-04-06 13:46:30,940 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:46:30,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:46:30,940 INFO L85 PathProgramCache]: Analyzing trace with hash 614506545, now seen corresponding path program 1 times [2022-04-06 13:46:30,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:46:30,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534738697] [2022-04-06 13:46:30,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:46:30,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:46:31,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:31,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:46:31,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:31,181 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 414 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-04-06 13:46:31,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:46:31,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534738697] [2022-04-06 13:46:31,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534738697] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:46:31,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:46:31,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:46:31,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000542758] [2022-04-06 13:46:31,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:46:31,182 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:46:31,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:46:31,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:46:31,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:46:31,183 INFO L87 Difference]: Start difference. First operand 1348 states and 1920 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:32,875 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:46:34,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:46:36,922 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:46:38,949 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 [] [2022-04-06 13:46:39,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:46:39,400 INFO L93 Difference]: Finished difference Result 2787 states and 3973 transitions. [2022-04-06 13:46:39,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:46:39,400 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 215 [2022-04-06 13:46:39,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:46:39,404 INFO L225 Difference]: With dead ends: 2787 [2022-04-06 13:46:39,404 INFO L226 Difference]: Without dead ends: 1704 [2022-04-06 13:46:39,406 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 [2022-04-06 13:46:39,407 INFO L913 BasicCegarLoop]: 220 mSDtfsCounter, 76 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-04-06 13:46:39,407 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 530 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 487 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-04-06 13:46:39,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1704 states. [2022-04-06 13:46:39,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1704 to 1428. [2022-04-06 13:46:39,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1423 states have (on average 1.4202389318341533) internal successors, (2021), 1423 states have internal predecessors, (2021), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:39,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 2025 transitions. [2022-04-06 13:46:39,444 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 2025 transitions. Word has length 215 [2022-04-06 13:46:39,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:46:39,445 INFO L478 AbstractCegarLoop]: Abstraction has 1428 states and 2025 transitions. [2022-04-06 13:46:39,445 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:39,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 2025 transitions. [2022-04-06 13:46:39,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-04-06 13:46:39,448 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:46:39,449 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:46:39,449 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-06 13:46:39,449 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:46:39,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:46:39,449 INFO L85 PathProgramCache]: Analyzing trace with hash 792566790, now seen corresponding path program 1 times [2022-04-06 13:46:39,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:46:39,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449313077] [2022-04-06 13:46:39,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:46:39,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:46:39,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:39,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:46:39,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:39,691 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-04-06 13:46:39,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:46:39,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449313077] [2022-04-06 13:46:39,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449313077] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:46:39,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:46:39,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:46:39,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104085484] [2022-04-06 13:46:39,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:46:39,692 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:46:39,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:46:39,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:46:39,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:46:39,693 INFO L87 Difference]: Start difference. First operand 1428 states and 2025 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:41,711 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:46:42,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:46:42,156 INFO L93 Difference]: Finished difference Result 2836 states and 4036 transitions. [2022-04-06 13:46:42,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:46:42,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 216 [2022-04-06 13:46:42,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:46:42,161 INFO L225 Difference]: With dead ends: 2836 [2022-04-06 13:46:42,162 INFO L226 Difference]: Without dead ends: 1689 [2022-04-06 13:46:42,163 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 [2022-04-06 13:46:42,164 INFO L913 BasicCegarLoop]: 217 mSDtfsCounter, 72 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:46:42,164 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 524 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:46:42,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1689 states. [2022-04-06 13:46:42,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1689 to 1433. [2022-04-06 13:46:42,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1433 states, 1428 states have (on average 1.4187675070028012) internal successors, (2026), 1428 states have internal predecessors, (2026), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:42,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 2030 transitions. [2022-04-06 13:46:42,207 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 2030 transitions. Word has length 216 [2022-04-06 13:46:42,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:46:42,207 INFO L478 AbstractCegarLoop]: Abstraction has 1433 states and 2030 transitions. [2022-04-06 13:46:42,208 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:42,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 2030 transitions. [2022-04-06 13:46:42,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-04-06 13:46:42,210 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:46:42,211 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:46:42,211 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-06 13:46:42,211 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:46:42,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:46:42,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1390782110, now seen corresponding path program 1 times [2022-04-06 13:46:42,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:46:42,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73946165] [2022-04-06 13:46:42,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:46:42,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:46:42,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:42,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:46:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:42,450 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 366 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-04-06 13:46:42,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:46:42,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73946165] [2022-04-06 13:46:42,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73946165] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:46:42,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:46:42,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:46:42,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900783] [2022-04-06 13:46:42,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:46:42,452 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:46:42,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:46:42,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:46:42,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:46:42,453 INFO L87 Difference]: Start difference. First operand 1433 states and 2030 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:44,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:46:44,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:46:44,797 INFO L93 Difference]: Finished difference Result 2941 states and 4162 transitions. [2022-04-06 13:46:44,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:46:44,798 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 219 [2022-04-06 13:46:44,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:46:44,803 INFO L225 Difference]: With dead ends: 2941 [2022-04-06 13:46:44,803 INFO L226 Difference]: Without dead ends: 1524 [2022-04-06 13:46:44,805 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 [2022-04-06 13:46:44,806 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 23 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:46:44,806 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 478 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 360 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 13:46:44,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1524 states. [2022-04-06 13:46:44,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1524 to 1478. [2022-04-06 13:46:44,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 1473 states have (on average 1.419551934826884) internal successors, (2091), 1473 states have internal predecessors, (2091), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:44,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 2095 transitions. [2022-04-06 13:46:44,842 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 2095 transitions. Word has length 219 [2022-04-06 13:46:44,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:46:44,842 INFO L478 AbstractCegarLoop]: Abstraction has 1478 states and 2095 transitions. [2022-04-06 13:46:44,843 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) [2022-04-06 13:46:44,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 2095 transitions. [2022-04-06 13:46:44,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-04-06 13:46:44,846 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:46:44,846 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:46:44,846 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-06 13:46:44,846 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:46:44,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:46:44,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1029021668, now seen corresponding path program 1 times [2022-04-06 13:46:44,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:46:44,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013741082] [2022-04-06 13:46:44,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:46:44,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:46:44,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:45,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:46:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:45,108 INFO L134 CoverageAnalysis]: Checked inductivity of 798 backedges. 489 proven. 0 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-04-06 13:46:45,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:46:45,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013741082] [2022-04-06 13:46:45,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013741082] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:46:45,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:46:45,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:46:45,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016654491] [2022-04-06 13:46:45,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:46:45,109 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:46:45,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:46:45,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:46:45,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:46:45,110 INFO L87 Difference]: Start difference. First operand 1478 states and 2095 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:47,127 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 [] [2022-04-06 13:46:47,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:46:47,565 INFO L93 Difference]: Finished difference Result 3026 states and 4293 transitions. [2022-04-06 13:46:47,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:46:47,565 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 240 [2022-04-06 13:46:47,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:46:47,571 INFO L225 Difference]: With dead ends: 3026 [2022-04-06 13:46:47,571 INFO L226 Difference]: Without dead ends: 1839 [2022-04-06 13:46:47,573 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 [2022-04-06 13:46:47,573 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 76 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:46:47,574 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 528 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:46:47,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1839 states. [2022-04-06 13:46:47,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1839 to 1563. [2022-04-06 13:46:47,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1563 states, 1558 states have (on average 1.4127086007702183) internal successors, (2201), 1558 states have internal predecessors, (2201), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:47,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1563 states to 1563 states and 2205 transitions. [2022-04-06 13:46:47,611 INFO L78 Accepts]: Start accepts. Automaton has 1563 states and 2205 transitions. Word has length 240 [2022-04-06 13:46:47,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:46:47,611 INFO L478 AbstractCegarLoop]: Abstraction has 1563 states and 2205 transitions. [2022-04-06 13:46:47,611 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:47,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1563 states and 2205 transitions. [2022-04-06 13:46:47,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-04-06 13:46:47,614 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:46:47,614 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:46:47,615 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-06 13:46:47,615 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:46:47,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:46:47,615 INFO L85 PathProgramCache]: Analyzing trace with hash -513501219, now seen corresponding path program 1 times [2022-04-06 13:46:47,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:46:47,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845158695] [2022-04-06 13:46:47,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:46:47,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:46:47,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:47,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:46:47,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:47,900 INFO L134 CoverageAnalysis]: Checked inductivity of 798 backedges. 489 proven. 0 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-04-06 13:46:47,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:46:47,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845158695] [2022-04-06 13:46:47,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845158695] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:46:47,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:46:47,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:46:47,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646292926] [2022-04-06 13:46:47,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:46:47,901 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:46:47,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:46:47,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:46:47,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:46:47,902 INFO L87 Difference]: Start difference. First operand 1563 states and 2205 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:49,911 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 [] [2022-04-06 13:46:50,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:46:50,391 INFO L93 Difference]: Finished difference Result 3338 states and 4742 transitions. [2022-04-06 13:46:50,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:46:50,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 240 [2022-04-06 13:46:50,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:46:50,396 INFO L225 Difference]: With dead ends: 3338 [2022-04-06 13:46:50,397 INFO L226 Difference]: Without dead ends: 2083 [2022-04-06 13:46:50,399 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 [2022-04-06 13:46:50,399 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 110 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 33 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 13:46:50,399 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 476 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 13:46:50,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2083 states. [2022-04-06 13:46:50,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2083 to 1558. [2022-04-06 13:46:50,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1553 states have (on average 1.3979394719896974) internal successors, (2171), 1553 states have internal predecessors, (2171), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:50,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 2175 transitions. [2022-04-06 13:46:50,441 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 2175 transitions. Word has length 240 [2022-04-06 13:46:50,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:46:50,442 INFO L478 AbstractCegarLoop]: Abstraction has 1558 states and 2175 transitions. [2022-04-06 13:46:50,442 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:50,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 2175 transitions. [2022-04-06 13:46:50,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-04-06 13:46:50,445 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:46:50,445 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:46:50,445 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-06 13:46:50,445 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:46:50,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:46:50,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1382799739, now seen corresponding path program 1 times [2022-04-06 13:46:50,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:46:50,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653815714] [2022-04-06 13:46:50,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:46:50,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:46:50,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:50,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:46:50,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:50,696 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 498 proven. 0 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-04-06 13:46:50,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:46:50,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653815714] [2022-04-06 13:46:50,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653815714] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:46:50,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:46:50,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:46:50,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743470783] [2022-04-06 13:46:50,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:46:50,698 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:46:50,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:46:50,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:46:50,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:46:50,699 INFO L87 Difference]: Start difference. First operand 1558 states and 2175 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:52,098 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:46:54,121 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:46:56,150 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 13:46:58,172 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 [] [2022-04-06 13:46:58,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:46:58,638 INFO L93 Difference]: Finished difference Result 2888 states and 4063 transitions. [2022-04-06 13:46:58,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:46:58,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 241 [2022-04-06 13:46:58,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:46:58,643 INFO L225 Difference]: With dead ends: 2888 [2022-04-06 13:46:58,643 INFO L226 Difference]: Without dead ends: 1637 [2022-04-06 13:46:58,645 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 [2022-04-06 13:46:58,646 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 106 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 32 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-04-06 13:46:58,646 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 474 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 481 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-04-06 13:46:58,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1637 states. [2022-04-06 13:46:58,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1637 to 1299. [2022-04-06 13:46:58,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1299 states, 1294 states have (on average 1.3763523956723338) internal successors, (1781), 1294 states have internal predecessors, (1781), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:58,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1785 transitions. [2022-04-06 13:46:58,680 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1785 transitions. Word has length 241 [2022-04-06 13:46:58,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:46:58,681 INFO L478 AbstractCegarLoop]: Abstraction has 1299 states and 1785 transitions. [2022-04-06 13:46:58,681 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:46:58,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1785 transitions. [2022-04-06 13:46:58,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-04-06 13:46:58,683 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:46:58,684 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:46:58,684 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-06 13:46:58,684 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:46:58,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:46:58,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1424455945, now seen corresponding path program 1 times [2022-04-06 13:46:58,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:46:58,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694988362] [2022-04-06 13:46:58,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:46:58,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:46:58,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:58,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:46:58,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:46:58,949 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 438 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-04-06 13:46:58,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:46:58,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694988362] [2022-04-06 13:46:58,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694988362] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:46:58,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:46:58,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:46:58,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699574689] [2022-04-06 13:46:58,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:46:58,950 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:46:58,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:46:58,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:46:58,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:46:58,951 INFO L87 Difference]: Start difference. First operand 1299 states and 1785 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:47:00,964 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 [] [2022-04-06 13:47:01,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:47:01,296 INFO L93 Difference]: Finished difference Result 2744 states and 3765 transitions. [2022-04-06 13:47:01,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:47:01,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 244 [2022-04-06 13:47:01,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:47:01,299 INFO L225 Difference]: With dead ends: 2744 [2022-04-06 13:47:01,299 INFO L226 Difference]: Without dead ends: 1461 [2022-04-06 13:47:01,300 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 [2022-04-06 13:47:01,301 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 26 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:47:01,301 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 482 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 375 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 13:47:01,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2022-04-06 13:47:01,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1415. [2022-04-06 13:47:01,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1415 states, 1410 states have (on average 1.376595744680851) internal successors, (1941), 1410 states have internal predecessors, (1941), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:47:01,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 1945 transitions. [2022-04-06 13:47:01,334 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 1945 transitions. Word has length 244 [2022-04-06 13:47:01,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:47:01,334 INFO L478 AbstractCegarLoop]: Abstraction has 1415 states and 1945 transitions. [2022-04-06 13:47:01,334 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:47:01,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 1945 transitions. [2022-04-06 13:47:01,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-04-06 13:47:01,337 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:47:01,337 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:47:01,337 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-06 13:47:01,338 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:47:01,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:47:01,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1739724726, now seen corresponding path program 1 times [2022-04-06 13:47:01,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:47:01,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113210528] [2022-04-06 13:47:01,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:47:01,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:47:01,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:47:01,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:47:01,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:47:01,575 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 438 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-04-06 13:47:01,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:47:01,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113210528] [2022-04-06 13:47:01,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113210528] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 13:47:01,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 13:47:01,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 13:47:01,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399226901] [2022-04-06 13:47:01,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 13:47:01,576 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 13:47:01,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 13:47:01,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 13:47:01,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 13:47:01,577 INFO L87 Difference]: Start difference. First operand 1415 states and 1945 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:47:03,588 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 [] [2022-04-06 13:47:03,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 13:47:03,954 INFO L93 Difference]: Finished difference Result 3000 states and 4129 transitions. [2022-04-06 13:47:03,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 13:47:03,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 244 [2022-04-06 13:47:03,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 13:47:03,958 INFO L225 Difference]: With dead ends: 3000 [2022-04-06 13:47:03,958 INFO L226 Difference]: Without dead ends: 1601 [2022-04-06 13:47:03,960 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 [2022-04-06 13:47:03,961 INFO L913 BasicCegarLoop]: 202 mSDtfsCounter, 32 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 13:47:03,961 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 494 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 402 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 13:47:03,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2022-04-06 13:47:03,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1543. [2022-04-06 13:47:03,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1538 states have (on average 1.3842652795838752) internal successors, (2129), 1538 states have internal predecessors, (2129), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:47:03,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2133 transitions. [2022-04-06 13:47:03,997 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2133 transitions. Word has length 244 [2022-04-06 13:47:03,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 13:47:03,997 INFO L478 AbstractCegarLoop]: Abstraction has 1543 states and 2133 transitions. [2022-04-06 13:47:03,997 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 13:47:03,997 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2133 transitions. [2022-04-06 13:47:04,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-04-06 13:47:04,000 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 13:47:04,000 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 13:47:04,000 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-06 13:47:04,000 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 13:47:04,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 13:47:04,001 INFO L85 PathProgramCache]: Analyzing trace with hash 556149849, now seen corresponding path program 1 times [2022-04-06 13:47:04,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 13:47:04,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501453433] [2022-04-06 13:47:04,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:47:04,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 13:47:05,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:47:06,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 13:47:06,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:47:06,359 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 303 proven. 264 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2022-04-06 13:47:06,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 13:47:06,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501453433] [2022-04-06 13:47:06,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501453433] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 13:47:06,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269328293] [2022-04-06 13:47:06,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 13:47:06,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 13:47:06,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 13:47:06,361 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 13:47:06,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-06 13:47:07,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 13:47:07,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 1939 conjuncts, 386 conjunts are in the unsatisfiable core [2022-04-06 13:47:07,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 13:47:08,392 INFO L190 IndexEqualityManager]: detected not equals via solver