/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/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/openssl/s3_clnt.blast.02.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 02:43:59,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 02:43:59,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 02:43:59,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 02:43:59,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 02:43:59,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 02:43:59,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 02:43:59,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 02:43:59,402 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 02:43:59,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 02:43:59,407 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 02:43:59,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 02:43:59,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 02:43:59,411 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 02:43:59,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 02:43:59,413 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 02:43:59,413 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 02:43:59,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 02:43:59,417 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 02:43:59,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 02:43:59,424 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 02:43:59,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 02:43:59,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 02:43:59,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 02:43:59,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 02:43:59,433 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-20 02:43:59,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 02:43:59,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 02:43:59,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 02:43:59,442 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2022-03-20 02:43:59,476 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 02:43:59,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 02:43:59,476 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-20 02:43:59,477 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-20 02:43:59,477 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-20 02:43:59,477 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-20 02:43:59,478 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-20 02:43:59,478 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-20 02:43:59,478 INFO L138 SettingsManager]: * Use SBE=true [2022-03-20 02:43:59,479 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 02:43:59,479 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 02:43:59,479 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 02:43:59,479 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 02:43:59,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 02:43:59,479 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 02:43:59,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 02:43:59,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 02:43:59,480 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 02:43:59,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 02:43:59,481 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 02:43:59,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 02:43:59,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 02:43:59,481 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 02:43:59,481 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 02:43:59,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 02:43:59,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 02:43:59,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-20 02:43:59,482 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-20 02:43:59,482 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 02:43:59,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-20 02:43:59,482 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-20 02:43:59,482 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-03-20 02:43:59,482 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 02:43:59,482 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 02:43:59,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 02:43:59,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 02:43:59,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 02:43:59,738 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 02:43:59,739 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 02:43:59,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_clnt.blast.02.i.cil-2.c [2022-03-20 02:43:59,784 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d9aaca54/d1df7fb70d1e46a1a7107d5dd663786d/FLAG08290fe9a [2022-03-20 02:44:00,300 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 02:44:00,301 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.02.i.cil-2.c [2022-03-20 02:44:00,321 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d9aaca54/d1df7fb70d1e46a1a7107d5dd663786d/FLAG08290fe9a [2022-03-20 02:44:00,601 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d9aaca54/d1df7fb70d1e46a1a7107d5dd663786d [2022-03-20 02:44:00,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 02:44:00,605 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 02:44:00,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 02:44:00,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 02:44:00,610 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 02:44:00,611 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 02:44:00" (1/1) ... [2022-03-20 02:44:00,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37db8679 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:44:00, skipping insertion in model container [2022-03-20 02:44:00,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 02:44:00" (1/1) ... [2022-03-20 02:44:00,618 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 02:44:00,688 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 02:44:01,036 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.02.i.cil-2.c[65398,65411] [2022-03-20 02:44:01,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 02:44:01,057 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 02:44:01,177 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.02.i.cil-2.c[65398,65411] [2022-03-20 02:44:01,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 02:44:01,195 INFO L208 MainTranslator]: Completed translation [2022-03-20 02:44:01,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:44:01 WrapperNode [2022-03-20 02:44:01,196 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 02:44:01,197 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 02:44:01,197 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 02:44:01,197 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 02:44:01,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:44:01" (1/1) ... [2022-03-20 02:44:01,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:44:01" (1/1) ... [2022-03-20 02:44:01,234 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:44:01" (1/1) ... [2022-03-20 02:44:01,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:44:01" (1/1) ... [2022-03-20 02:44:01,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:44:01" (1/1) ... [2022-03-20 02:44:01,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:44:01" (1/1) ... [2022-03-20 02:44:01,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:44:01" (1/1) ... [2022-03-20 02:44:01,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 02:44:01,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 02:44:01,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 02:44:01,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 02:44:01,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:44:01" (1/1) ... [2022-03-20 02:44:01,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 02:44:01,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:44:01,360 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-20 02:44:01,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-20 02:44:01,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 02:44:01,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 02:44:01,408 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 02:44:01,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2022-03-20 02:44:01,411 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2022-03-20 02:44:01,411 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 02:44:01,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-03-20 02:44:01,411 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 02:44:01,411 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 02:44:01,411 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 02:44:01,411 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 02:44:01,412 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 02:44:01,412 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 02:44:01,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 02:44:01,412 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 02:44:01,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 02:44:01,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 02:44:01,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 02:44:01,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 02:44:01,412 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 02:44:01,412 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2022-03-20 02:44:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 02:44:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-03-20 02:44:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2022-03-20 02:44:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 02:44:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 02:44:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 02:44:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 02:44:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 02:44:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 02:44:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 02:44:01,413 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 02:44:01,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 02:44:01,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 02:44:01,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 02:44:01,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 02:44:01,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 02:44:01,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 02:44:01,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 02:44:01,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 02:44:01,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 02:44:01,586 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 02:44:01,588 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 02:44:02,631 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:44:02,977 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-03-20 02:44:02,977 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-03-20 02:44:03,004 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 02:44:03,014 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 02:44:03,014 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 02:44:03,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 02:44:03 BoogieIcfgContainer [2022-03-20 02:44:03,016 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 02:44:03,017 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 02:44:03,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 02:44:03,020 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 02:44:03,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 02:44:00" (1/3) ... [2022-03-20 02:44:03,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35dfcc03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 02:44:03, skipping insertion in model container [2022-03-20 02:44:03,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:44:01" (2/3) ... [2022-03-20 02:44:03,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35dfcc03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 02:44:03, skipping insertion in model container [2022-03-20 02:44:03,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 02:44:03" (3/3) ... [2022-03-20 02:44:03,023 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.02.i.cil-2.c [2022-03-20 02:44:03,028 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-20 02:44:03,028 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 02:44:03,066 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 02:44:03,070 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-20 02:44:03,070 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 02:44:03,086 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 130 states have (on average 1.6923076923076923) internal successors, (220), 131 states have internal predecessors, (220), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 02:44:03,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-03-20 02:44:03,090 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:44:03,091 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:44:03,091 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:44:03,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:44:03,095 INFO L85 PathProgramCache]: Analyzing trace with hash -22644822, now seen corresponding path program 1 times [2022-03-20 02:44:03,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:44:03,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56558222] [2022-03-20 02:44:03,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:44:03,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:44:03,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:03,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:44:03,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:03,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:44:03,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:44:03,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56558222] [2022-03-20 02:44:03,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56558222] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:44:03,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:44:03,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:44:03,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154777461] [2022-03-20 02:44:03,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:44:03,760 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:44:03,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:44:03,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:44:03,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:44:03,792 INFO L87 Difference]: Start difference. First operand has 138 states, 130 states have (on average 1.6923076923076923) internal successors, (220), 131 states have internal predecessors, (220), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:05,829 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:44:06,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:44:06,383 INFO L93 Difference]: Finished difference Result 267 states and 442 transitions. [2022-03-20 02:44:06,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:44:06,388 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-03-20 02:44:06,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:44:06,396 INFO L225 Difference]: With dead ends: 267 [2022-03-20 02:44:06,396 INFO L226 Difference]: Without dead ends: 122 [2022-03-20 02:44:06,398 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:44:06,401 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 [2022-03-20 02:44:06,402 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] [2022-03-20 02:44:06,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-03-20 02:44:06,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2022-03-20 02:44:06,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 116 states have (on average 1.5) internal successors, (174), 116 states have internal predecessors, (174), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:06,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 178 transitions. [2022-03-20 02:44:06,461 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 178 transitions. Word has length 30 [2022-03-20 02:44:06,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:44:06,462 INFO L478 AbstractCegarLoop]: Abstraction has 121 states and 178 transitions. [2022-03-20 02:44:06,462 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:06,462 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 178 transitions. [2022-03-20 02:44:06,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-03-20 02:44:06,463 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:44:06,463 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:44:06,464 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 02:44:06,464 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:44:06,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:44:06,465 INFO L85 PathProgramCache]: Analyzing trace with hash 868047042, now seen corresponding path program 1 times [2022-03-20 02:44:06,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:44:06,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387729188] [2022-03-20 02:44:06,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:44:06,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:44:06,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:06,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:44:06,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:06,720 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 02:44:06,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:44:06,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387729188] [2022-03-20 02:44:06,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387729188] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:44:06,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:44:06,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:44:06,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665202026] [2022-03-20 02:44:06,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:44:06,730 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:44:06,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:44:06,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:44:06,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:44:06,731 INFO L87 Difference]: Start difference. First operand 121 states and 178 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:08,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:44:09,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:44:09,065 INFO L93 Difference]: Finished difference Result 326 states and 488 transitions. [2022-03-20 02:44:09,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:44:09,065 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-03-20 02:44:09,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:44:09,067 INFO L225 Difference]: With dead ends: 326 [2022-03-20 02:44:09,068 INFO L226 Difference]: Without dead ends: 221 [2022-03-20 02:44:09,068 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:44:09,069 INFO L913 BasicCegarLoop]: 167 mSDtfsCounter, 123 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:44:09,070 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 320 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 189 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 02:44:09,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-03-20 02:44:09,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2022-03-20 02:44:09,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 216 states have (on average 1.4861111111111112) internal successors, (321), 216 states have internal predecessors, (321), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:09,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 325 transitions. [2022-03-20 02:44:09,086 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 325 transitions. Word has length 44 [2022-03-20 02:44:09,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:44:09,086 INFO L478 AbstractCegarLoop]: Abstraction has 221 states and 325 transitions. [2022-03-20 02:44:09,087 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:09,087 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 325 transitions. [2022-03-20 02:44:09,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-03-20 02:44:09,088 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:44:09,089 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:44:09,089 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 02:44:09,089 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:44:09,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:44:09,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1147706284, now seen corresponding path program 1 times [2022-03-20 02:44:09,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:44:09,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728044175] [2022-03-20 02:44:09,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:44:09,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:44:09,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:09,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:44:09,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:09,345 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 02:44:09,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:44:09,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728044175] [2022-03-20 02:44:09,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728044175] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:44:09,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:44:09,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:44:09,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142440588] [2022-03-20 02:44:09,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:44:09,347 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:44:09,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:44:09,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:44:09,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:44:09,348 INFO L87 Difference]: Start difference. First operand 221 states and 325 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:11,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:44:11,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:44:11,746 INFO L93 Difference]: Finished difference Result 362 states and 538 transitions. [2022-03-20 02:44:11,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:44:11,747 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2022-03-20 02:44:11,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:44:11,749 INFO L225 Difference]: With dead ends: 362 [2022-03-20 02:44:11,749 INFO L226 Difference]: Without dead ends: 257 [2022-03-20 02:44:11,750 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:44:11,751 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 33 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 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, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:44:11,751 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 484 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 359 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:44:11,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-03-20 02:44:11,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 239. [2022-03-20 02:44:11,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.5) internal successors, (351), 234 states have internal predecessors, (351), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:11,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 355 transitions. [2022-03-20 02:44:11,763 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 355 transitions. Word has length 59 [2022-03-20 02:44:11,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:44:11,764 INFO L478 AbstractCegarLoop]: Abstraction has 239 states and 355 transitions. [2022-03-20 02:44:11,764 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:11,764 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 355 transitions. [2022-03-20 02:44:11,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-03-20 02:44:11,766 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:44:11,766 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:44:11,766 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 02:44:11,767 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:44:11,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:44:11,767 INFO L85 PathProgramCache]: Analyzing trace with hash -861449916, now seen corresponding path program 2 times [2022-03-20 02:44:11,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:44:11,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585632064] [2022-03-20 02:44:11,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:44:11,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:44:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:12,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:44:12,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:12,006 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 02:44:12,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:44:12,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585632064] [2022-03-20 02:44:12,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585632064] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:44:12,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:44:12,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:44:12,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339222622] [2022-03-20 02:44:12,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:44:12,007 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:44:12,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:44:12,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:44:12,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:44:12,008 INFO L87 Difference]: Start difference. First operand 239 states and 355 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:14,022 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:44:14,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:44:14,410 INFO L93 Difference]: Finished difference Result 379 states and 566 transitions. [2022-03-20 02:44:14,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:44:14,411 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73 [2022-03-20 02:44:14,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:44:14,413 INFO L225 Difference]: With dead ends: 379 [2022-03-20 02:44:14,413 INFO L226 Difference]: Without dead ends: 256 [2022-03-20 02:44:14,413 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:44:14,414 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 39 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:44:14,415 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 484 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 352 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:44:14,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-03-20 02:44:14,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 239. [2022-03-20 02:44:14,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.4957264957264957) internal successors, (350), 234 states have internal predecessors, (350), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:14,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 354 transitions. [2022-03-20 02:44:14,425 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 354 transitions. Word has length 73 [2022-03-20 02:44:14,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:44:14,425 INFO L478 AbstractCegarLoop]: Abstraction has 239 states and 354 transitions. [2022-03-20 02:44:14,426 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:14,426 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 354 transitions. [2022-03-20 02:44:14,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-03-20 02:44:14,428 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:44:14,428 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:44:14,428 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 02:44:14,428 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:44:14,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:44:14,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1970430362, now seen corresponding path program 1 times [2022-03-20 02:44:14,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:44:14,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909731010] [2022-03-20 02:44:14,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:44:14,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:44:14,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:14,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:44:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:14,652 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 02:44:14,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:44:14,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909731010] [2022-03-20 02:44:14,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909731010] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:44:14,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:44:14,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:44:14,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344879156] [2022-03-20 02:44:14,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:44:14,654 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:44:14,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:44:14,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:44:14,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:44:14,655 INFO L87 Difference]: Start difference. First operand 239 states and 354 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:16,666 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:44:17,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:44:17,102 INFO L93 Difference]: Finished difference Result 644 states and 963 transitions. [2022-03-20 02:44:17,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:44:17,102 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73 [2022-03-20 02:44:17,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:44:17,105 INFO L225 Difference]: With dead ends: 644 [2022-03-20 02:44:17,105 INFO L226 Difference]: Without dead ends: 421 [2022-03-20 02:44:17,106 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:44:17,106 INFO L913 BasicCegarLoop]: 97 mSDtfsCounter, 119 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:44:17,107 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:44:17,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-03-20 02:44:17,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 263. [2022-03-20 02:44:17,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 258 states have (on average 1.4922480620155039) internal successors, (385), 258 states have internal predecessors, (385), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:17,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 389 transitions. [2022-03-20 02:44:17,120 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 389 transitions. Word has length 73 [2022-03-20 02:44:17,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:44:17,120 INFO L478 AbstractCegarLoop]: Abstraction has 263 states and 389 transitions. [2022-03-20 02:44:17,120 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:17,120 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 389 transitions. [2022-03-20 02:44:17,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-03-20 02:44:17,122 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:44:17,122 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:44:17,122 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 02:44:17,122 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:44:17,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:44:17,122 INFO L85 PathProgramCache]: Analyzing trace with hash -899406007, now seen corresponding path program 1 times [2022-03-20 02:44:17,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:44:17,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279981070] [2022-03-20 02:44:17,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:44:17,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:44:17,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:17,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:44:17,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:17,314 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 02:44:17,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:44:17,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279981070] [2022-03-20 02:44:17,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279981070] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:44:17,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:44:17,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:44:17,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62249808] [2022-03-20 02:44:17,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:44:17,318 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:44:17,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:44:17,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:44:17,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:44:17,320 INFO L87 Difference]: Start difference. First operand 263 states and 389 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:19,331 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:44:19,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:44:19,712 INFO L93 Difference]: Finished difference Result 415 states and 616 transitions. [2022-03-20 02:44:19,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:44:19,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2022-03-20 02:44:19,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:44:19,714 INFO L225 Difference]: With dead ends: 415 [2022-03-20 02:44:19,714 INFO L226 Difference]: Without dead ends: 280 [2022-03-20 02:44:19,714 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:44:19,715 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 35 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:44:19,715 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 480 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 350 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:44:19,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2022-03-20 02:44:19,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 263. [2022-03-20 02:44:19,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 258 states have (on average 1.4883720930232558) internal successors, (384), 258 states have internal predecessors, (384), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:19,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 388 transitions. [2022-03-20 02:44:19,724 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 388 transitions. Word has length 74 [2022-03-20 02:44:19,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:44:19,724 INFO L478 AbstractCegarLoop]: Abstraction has 263 states and 388 transitions. [2022-03-20 02:44:19,725 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:19,725 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 388 transitions. [2022-03-20 02:44:19,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-03-20 02:44:19,726 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:44:19,726 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:44:19,726 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 02:44:19,726 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:44:19,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:44:19,727 INFO L85 PathProgramCache]: Analyzing trace with hash -2000808735, now seen corresponding path program 1 times [2022-03-20 02:44:19,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:44:19,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75982897] [2022-03-20 02:44:19,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:44:19,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:44:19,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:19,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:44:19,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:19,933 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 02:44:19,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:44:19,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75982897] [2022-03-20 02:44:19,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75982897] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:44:19,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:44:19,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:44:19,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277922662] [2022-03-20 02:44:19,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:44:19,934 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:44:19,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:44:19,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:44:19,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:44:19,935 INFO L87 Difference]: Start difference. First operand 263 states and 388 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:21,946 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:44:22,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:44:22,339 INFO L93 Difference]: Finished difference Result 415 states and 614 transitions. [2022-03-20 02:44:22,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:44:22,340 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2022-03-20 02:44:22,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:44:22,341 INFO L225 Difference]: With dead ends: 415 [2022-03-20 02:44:22,341 INFO L226 Difference]: Without dead ends: 280 [2022-03-20 02:44:22,342 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:44:22,342 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 33 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:44:22,343 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 478 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 349 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:44:22,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2022-03-20 02:44:22,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 263. [2022-03-20 02:44:22,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 258 states have (on average 1.4844961240310077) internal successors, (383), 258 states have internal predecessors, (383), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:22,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 387 transitions. [2022-03-20 02:44:22,351 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 387 transitions. Word has length 75 [2022-03-20 02:44:22,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:44:22,352 INFO L478 AbstractCegarLoop]: Abstraction has 263 states and 387 transitions. [2022-03-20 02:44:22,352 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:22,352 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 387 transitions. [2022-03-20 02:44:22,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-03-20 02:44:22,353 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:44:22,353 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:44:22,353 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 02:44:22,353 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:44:22,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:44:22,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1727974300, now seen corresponding path program 1 times [2022-03-20 02:44:22,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:44:22,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611741025] [2022-03-20 02:44:22,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:44:22,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:44:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:22,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:44:22,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:22,538 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 02:44:22,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:44:22,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611741025] [2022-03-20 02:44:22,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611741025] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:44:22,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:44:22,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:44:22,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500077243] [2022-03-20 02:44:22,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:44:22,539 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:44:22,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:44:22,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:44:22,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:44:22,540 INFO L87 Difference]: Start difference. First operand 263 states and 387 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:24,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:44:25,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:44:25,003 INFO L93 Difference]: Finished difference Result 668 states and 991 transitions. [2022-03-20 02:44:25,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:44:25,003 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 76 [2022-03-20 02:44:25,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:44:25,005 INFO L225 Difference]: With dead ends: 668 [2022-03-20 02:44:25,005 INFO L226 Difference]: Without dead ends: 421 [2022-03-20 02:44:25,006 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:44:25,006 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 [2022-03-20 02:44:25,007 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] [2022-03-20 02:44:25,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-03-20 02:44:25,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 269. [2022-03-20 02:44:25,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 264 states have (on average 1.4848484848484849) internal successors, (392), 264 states have internal predecessors, (392), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:25,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 396 transitions. [2022-03-20 02:44:25,015 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 396 transitions. Word has length 76 [2022-03-20 02:44:25,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:44:25,016 INFO L478 AbstractCegarLoop]: Abstraction has 269 states and 396 transitions. [2022-03-20 02:44:25,016 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:25,016 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 396 transitions. [2022-03-20 02:44:25,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-20 02:44:25,018 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:44:25,018 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:44:25,019 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 02:44:25,019 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:44:25,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:44:25,019 INFO L85 PathProgramCache]: Analyzing trace with hash -988156823, now seen corresponding path program 1 times [2022-03-20 02:44:25,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:44:25,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608126581] [2022-03-20 02:44:25,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:44:25,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:44:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:25,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:44:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:25,222 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-03-20 02:44:25,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:44:25,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608126581] [2022-03-20 02:44:25,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608126581] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:44:25,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:44:25,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:44:25,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035286729] [2022-03-20 02:44:25,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:44:25,223 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:44:25,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:44:25,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:44:25,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:44:25,224 INFO L87 Difference]: Start difference. First operand 269 states and 396 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:27,236 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:44:27,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:44:27,727 INFO L93 Difference]: Finished difference Result 542 states and 806 transitions. [2022-03-20 02:44:27,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:44:27,728 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2022-03-20 02:44:27,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:44:27,730 INFO L225 Difference]: With dead ends: 542 [2022-03-20 02:44:27,730 INFO L226 Difference]: Without dead ends: 404 [2022-03-20 02:44:27,731 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:44:27,731 INFO L913 BasicCegarLoop]: 315 mSDtfsCounter, 126 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 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 [2022-03-20 02:44:27,732 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 477 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 339 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:44:27,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-03-20 02:44:27,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2022-03-20 02:44:27,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 399 states have (on average 1.4786967418546366) internal successors, (590), 399 states have internal predecessors, (590), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:27,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 594 transitions. [2022-03-20 02:44:27,743 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 594 transitions. Word has length 77 [2022-03-20 02:44:27,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:44:27,743 INFO L478 AbstractCegarLoop]: Abstraction has 404 states and 594 transitions. [2022-03-20 02:44:27,743 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:27,743 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 594 transitions. [2022-03-20 02:44:27,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-20 02:44:27,744 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:44:27,744 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:44:27,744 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 02:44:27,745 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:44:27,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:44:27,745 INFO L85 PathProgramCache]: Analyzing trace with hash -926117209, now seen corresponding path program 1 times [2022-03-20 02:44:27,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:44:27,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841314242] [2022-03-20 02:44:27,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:44:27,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:44:27,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:27,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:44:27,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:27,932 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-20 02:44:27,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:44:27,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841314242] [2022-03-20 02:44:27,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841314242] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:44:27,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:44:27,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:44:27,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136794728] [2022-03-20 02:44:27,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:44:27,933 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:44:27,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:44:27,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:44:27,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:44:27,934 INFO L87 Difference]: Start difference. First operand 404 states and 594 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:29,944 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:44:30,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:44:30,199 INFO L93 Difference]: Finished difference Result 702 states and 1034 transitions. [2022-03-20 02:44:30,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:44:30,199 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2022-03-20 02:44:30,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:44:30,201 INFO L225 Difference]: With dead ends: 702 [2022-03-20 02:44:30,201 INFO L226 Difference]: Without dead ends: 429 [2022-03-20 02:44:30,202 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:44:30,203 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 16 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:44:30,203 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 358 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 214 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 02:44:30,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-03-20 02:44:30,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 429. [2022-03-20 02:44:30,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 424 states have (on average 1.4693396226415094) internal successors, (623), 424 states have internal predecessors, (623), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:30,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 627 transitions. [2022-03-20 02:44:30,215 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 627 transitions. Word has length 77 [2022-03-20 02:44:30,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:44:30,216 INFO L478 AbstractCegarLoop]: Abstraction has 429 states and 627 transitions. [2022-03-20 02:44:30,216 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:30,216 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 627 transitions. [2022-03-20 02:44:30,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-03-20 02:44:30,217 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:44:30,217 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:44:30,218 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 02:44:30,218 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:44:30,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:44:30,218 INFO L85 PathProgramCache]: Analyzing trace with hash 140608816, now seen corresponding path program 1 times [2022-03-20 02:44:30,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:44:30,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121114453] [2022-03-20 02:44:30,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:44:30,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:44:30,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:30,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:44:30,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:30,435 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-20 02:44:30,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:44:30,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121114453] [2022-03-20 02:44:30,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121114453] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:44:30,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:44:30,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:44:30,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422251257] [2022-03-20 02:44:30,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:44:30,436 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:44:30,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:44:30,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:44:30,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:44:30,437 INFO L87 Difference]: Start difference. First operand 429 states and 627 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:32,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:44:32,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:44:32,870 INFO L93 Difference]: Finished difference Result 861 states and 1267 transitions. [2022-03-20 02:44:32,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:44:32,870 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2022-03-20 02:44:32,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:44:32,873 INFO L225 Difference]: With dead ends: 861 [2022-03-20 02:44:32,873 INFO L226 Difference]: Without dead ends: 563 [2022-03-20 02:44:32,873 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:44:32,874 INFO L913 BasicCegarLoop]: 314 mSDtfsCounter, 126 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:44:32,874 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 476 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 338 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:44:32,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2022-03-20 02:44:32,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563. [2022-03-20 02:44:32,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 558 states have (on average 1.4695340501792116) internal successors, (820), 558 states have internal predecessors, (820), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:32,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 824 transitions. [2022-03-20 02:44:32,887 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 824 transitions. Word has length 97 [2022-03-20 02:44:32,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:44:32,887 INFO L478 AbstractCegarLoop]: Abstraction has 563 states and 824 transitions. [2022-03-20 02:44:32,887 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:32,887 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 824 transitions. [2022-03-20 02:44:32,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-20 02:44:32,890 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:44:32,890 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:44:32,890 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 02:44:32,890 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:44:32,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:44:32,891 INFO L85 PathProgramCache]: Analyzing trace with hash -2136926065, now seen corresponding path program 1 times [2022-03-20 02:44:32,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:44:32,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039293425] [2022-03-20 02:44:32,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:44:32,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:44:32,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:33,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:44:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:33,067 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-20 02:44:33,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:44:33,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039293425] [2022-03-20 02:44:33,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039293425] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:44:33,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:44:33,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:44:33,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202436752] [2022-03-20 02:44:33,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:44:33,068 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:44:33,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:44:33,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:44:33,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:44:33,069 INFO L87 Difference]: Start difference. First operand 563 states and 824 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:35,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:44:35,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:44:35,494 INFO L93 Difference]: Finished difference Result 1111 states and 1635 transitions. [2022-03-20 02:44:35,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:44:35,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-03-20 02:44:35,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:44:35,498 INFO L225 Difference]: With dead ends: 1111 [2022-03-20 02:44:35,498 INFO L226 Difference]: Without dead ends: 679 [2022-03-20 02:44:35,499 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:44:35,500 INFO L913 BasicCegarLoop]: 313 mSDtfsCounter, 125 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:44:35,500 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 475 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 337 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:44:35,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2022-03-20 02:44:35,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 679. [2022-03-20 02:44:35,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 674 states have (on average 1.470326409495549) internal successors, (991), 674 states have internal predecessors, (991), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:35,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 995 transitions. [2022-03-20 02:44:35,515 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 995 transitions. Word has length 118 [2022-03-20 02:44:35,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:44:35,515 INFO L478 AbstractCegarLoop]: Abstraction has 679 states and 995 transitions. [2022-03-20 02:44:35,515 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:35,515 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 995 transitions. [2022-03-20 02:44:35,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-03-20 02:44:35,517 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:44:35,517 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 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] [2022-03-20 02:44:35,517 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 02:44:35,518 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:44:35,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:44:35,518 INFO L85 PathProgramCache]: Analyzing trace with hash -383649488, now seen corresponding path program 1 times [2022-03-20 02:44:35,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:44:35,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997641250] [2022-03-20 02:44:35,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:44:35,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:44:35,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:35,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:44:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:35,760 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 190 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-03-20 02:44:35,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:44:35,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997641250] [2022-03-20 02:44:35,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997641250] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:44:35,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:44:35,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:44:35,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634259274] [2022-03-20 02:44:35,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:44:35,761 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:44:35,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:44:35,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:44:35,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:44:35,762 INFO L87 Difference]: Start difference. First operand 679 states and 995 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:37,773 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:44:38,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:44:38,296 INFO L93 Difference]: Finished difference Result 1682 states and 2470 transitions. [2022-03-20 02:44:38,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:44:38,297 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 152 [2022-03-20 02:44:38,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:44:38,301 INFO L225 Difference]: With dead ends: 1682 [2022-03-20 02:44:38,301 INFO L226 Difference]: Without dead ends: 1132 [2022-03-20 02:44:38,302 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:44:38,303 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 113 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:44:38,303 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 508 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 503 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:44:38,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2022-03-20 02:44:38,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 759. [2022-03-20 02:44:38,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 759 states, 754 states have (on average 1.4681697612732096) internal successors, (1107), 754 states have internal predecessors, (1107), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:38,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 1111 transitions. [2022-03-20 02:44:38,324 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 1111 transitions. Word has length 152 [2022-03-20 02:44:38,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:44:38,325 INFO L478 AbstractCegarLoop]: Abstraction has 759 states and 1111 transitions. [2022-03-20 02:44:38,325 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:38,325 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 1111 transitions. [2022-03-20 02:44:38,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-20 02:44:38,327 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:44:38,327 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:44:38,327 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 02:44:38,327 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:44:38,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:44:38,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1211981165, now seen corresponding path program 1 times [2022-03-20 02:44:38,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:44:38,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031843363] [2022-03-20 02:44:38,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:44:38,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:44:38,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:38,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:44:38,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:38,567 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-03-20 02:44:38,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:44:38,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031843363] [2022-03-20 02:44:38,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031843363] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:44:38,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:44:38,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:44:38,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689255222] [2022-03-20 02:44:38,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:44:38,569 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:44:38,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:44:38,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:44:38,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:44:38,570 INFO L87 Difference]: Start difference. First operand 759 states and 1111 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:40,580 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:44:41,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:44:41,138 INFO L93 Difference]: Finished difference Result 1724 states and 2528 transitions. [2022-03-20 02:44:41,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:44:41,139 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-03-20 02:44:41,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:44:41,143 INFO L225 Difference]: With dead ends: 1724 [2022-03-20 02:44:41,143 INFO L226 Difference]: Without dead ends: 1110 [2022-03-20 02:44:41,144 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:44:41,145 INFO L913 BasicCegarLoop]: 239 mSDtfsCounter, 97 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:44:41,145 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 567 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 536 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:44:41,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2022-03-20 02:44:41,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 827. [2022-03-20 02:44:41,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 827 states, 822 states have (on average 1.4683698296836982) internal successors, (1207), 822 states have internal predecessors, (1207), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:41,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1211 transitions. [2022-03-20 02:44:41,170 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1211 transitions. Word has length 153 [2022-03-20 02:44:41,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:44:41,170 INFO L478 AbstractCegarLoop]: Abstraction has 827 states and 1211 transitions. [2022-03-20 02:44:41,170 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:41,170 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1211 transitions. [2022-03-20 02:44:41,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-03-20 02:44:41,172 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:44:41,173 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 7, 7, 7, 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] [2022-03-20 02:44:41,173 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 02:44:41,173 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:44:41,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:44:41,173 INFO L85 PathProgramCache]: Analyzing trace with hash -22163576, now seen corresponding path program 2 times [2022-03-20 02:44:41,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:44:41,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090893424] [2022-03-20 02:44:41,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:44:41,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:44:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:41,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:44:41,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:41,395 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 221 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-03-20 02:44:41,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:44:41,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090893424] [2022-03-20 02:44:41,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090893424] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:44:41,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:44:41,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:44:41,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957439735] [2022-03-20 02:44:41,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:44:41,396 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:44:41,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:44:41,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:44:41,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:44:41,397 INFO L87 Difference]: Start difference. First operand 827 states and 1211 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:43,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:44:43,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:44:43,838 INFO L93 Difference]: Finished difference Result 2011 states and 2950 transitions. [2022-03-20 02:44:43,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:44:43,838 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 166 [2022-03-20 02:44:43,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:44:43,842 INFO L225 Difference]: With dead ends: 2011 [2022-03-20 02:44:43,842 INFO L226 Difference]: Without dead ends: 1200 [2022-03-20 02:44:43,845 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:44:43,846 INFO L913 BasicCegarLoop]: 104 mSDtfsCounter, 110 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 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 [2022-03-20 02:44:43,846 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 296 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 379 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:44:43,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1200 states. [2022-03-20 02:44:43,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1200 to 827. [2022-03-20 02:44:43,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 827 states, 822 states have (on average 1.451338199513382) internal successors, (1193), 822 states have internal predecessors, (1193), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:43,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1197 transitions. [2022-03-20 02:44:43,870 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1197 transitions. Word has length 166 [2022-03-20 02:44:43,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:44:43,870 INFO L478 AbstractCegarLoop]: Abstraction has 827 states and 1197 transitions. [2022-03-20 02:44:43,870 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:43,871 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1197 transitions. [2022-03-20 02:44:43,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-03-20 02:44:43,887 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:44:43,887 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:44:43,888 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 02:44:43,888 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:44:43,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:44:43,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1496700185, now seen corresponding path program 1 times [2022-03-20 02:44:43,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:44:43,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004775372] [2022-03-20 02:44:43,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:44:43,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:44:43,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:44,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:44:44,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:44,085 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 234 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-03-20 02:44:44,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:44:44,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004775372] [2022-03-20 02:44:44,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004775372] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:44:44,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:44:44,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:44:44,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100618011] [2022-03-20 02:44:44,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:44:44,088 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:44:44,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:44:44,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:44:44,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:44:44,089 INFO L87 Difference]: Start difference. First operand 827 states and 1197 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:46,099 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:44:46,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:44:46,569 INFO L93 Difference]: Finished difference Result 1917 states and 2784 transitions. [2022-03-20 02:44:46,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:44:46,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2022-03-20 02:44:46,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:44:46,573 INFO L225 Difference]: With dead ends: 1917 [2022-03-20 02:44:46,573 INFO L226 Difference]: Without dead ends: 1106 [2022-03-20 02:44:46,575 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:44:46,575 INFO L913 BasicCegarLoop]: 237 mSDtfsCounter, 99 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:44:46,576 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 563 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 530 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:44:46,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2022-03-20 02:44:46,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 827. [2022-03-20 02:44:46,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 827 states, 822 states have (on average 1.4464720194647203) internal successors, (1189), 822 states have internal predecessors, (1189), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:46,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1193 transitions. [2022-03-20 02:44:46,598 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1193 transitions. Word has length 167 [2022-03-20 02:44:46,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:44:46,599 INFO L478 AbstractCegarLoop]: Abstraction has 827 states and 1193 transitions. [2022-03-20 02:44:46,599 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:46,599 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1193 transitions. [2022-03-20 02:44:46,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-03-20 02:44:46,601 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:44:46,601 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:44:46,601 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 02:44:46,602 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:44:46,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:44:46,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1030373157, now seen corresponding path program 1 times [2022-03-20 02:44:46,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:44:46,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851476519] [2022-03-20 02:44:46,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:44:46,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:44:46,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:46,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:44:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:46,818 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-03-20 02:44:46,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:44:46,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851476519] [2022-03-20 02:44:46,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851476519] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:44:46,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:44:46,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:44:46,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125221615] [2022-03-20 02:44:46,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:44:46,819 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:44:46,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:44:46,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:44:46,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:44:46,821 INFO L87 Difference]: Start difference. First operand 827 states and 1193 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:48,832 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:44:49,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:44:49,308 INFO L93 Difference]: Finished difference Result 1881 states and 2732 transitions. [2022-03-20 02:44:49,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:44:49,309 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 168 [2022-03-20 02:44:49,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:44:49,313 INFO L225 Difference]: With dead ends: 1881 [2022-03-20 02:44:49,313 INFO L226 Difference]: Without dead ends: 1070 [2022-03-20 02:44:49,315 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:44:49,315 INFO L913 BasicCegarLoop]: 230 mSDtfsCounter, 90 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:44:49,315 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 549 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 507 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:44:49,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2022-03-20 02:44:49,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 827. [2022-03-20 02:44:49,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 827 states, 822 states have (on average 1.4416058394160585) internal successors, (1185), 822 states have internal predecessors, (1185), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:49,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1189 transitions. [2022-03-20 02:44:49,337 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1189 transitions. Word has length 168 [2022-03-20 02:44:49,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:44:49,337 INFO L478 AbstractCegarLoop]: Abstraction has 827 states and 1189 transitions. [2022-03-20 02:44:49,338 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:49,338 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1189 transitions. [2022-03-20 02:44:49,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-03-20 02:44:49,340 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:44:49,340 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:44:49,340 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 02:44:49,340 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:44:49,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:44:49,341 INFO L85 PathProgramCache]: Analyzing trace with hash -310692014, now seen corresponding path program 2 times [2022-03-20 02:44:49,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:44:49,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339509509] [2022-03-20 02:44:49,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:44:49,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:44:49,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:49,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:44:49,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:49,547 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 267 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2022-03-20 02:44:49,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:44:49,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339509509] [2022-03-20 02:44:49,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339509509] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:44:49,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:44:49,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:44:49,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431351773] [2022-03-20 02:44:49,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:44:49,548 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:44:49,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:44:49,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:44:49,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:44:49,548 INFO L87 Difference]: Start difference. First operand 827 states and 1189 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:51,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:44:52,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:44:52,052 INFO L93 Difference]: Finished difference Result 1881 states and 2724 transitions. [2022-03-20 02:44:52,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:44:52,052 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 171 [2022-03-20 02:44:52,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:44:52,056 INFO L225 Difference]: With dead ends: 1881 [2022-03-20 02:44:52,056 INFO L226 Difference]: Without dead ends: 1070 [2022-03-20 02:44:52,058 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:44:52,058 INFO L913 BasicCegarLoop]: 229 mSDtfsCounter, 85 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:44:52,059 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 547 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 506 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:44:52,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2022-03-20 02:44:52,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 831. [2022-03-20 02:44:52,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 826 states have (on average 1.4394673123486683) internal successors, (1189), 826 states have internal predecessors, (1189), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:52,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1193 transitions. [2022-03-20 02:44:52,080 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1193 transitions. Word has length 171 [2022-03-20 02:44:52,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:44:52,080 INFO L478 AbstractCegarLoop]: Abstraction has 831 states and 1193 transitions. [2022-03-20 02:44:52,080 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:52,080 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1193 transitions. [2022-03-20 02:44:52,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-03-20 02:44:52,082 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:44:52,083 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:44:52,083 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 02:44:52,083 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:44:52,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:44:52,083 INFO L85 PathProgramCache]: Analyzing trace with hash -228612804, now seen corresponding path program 1 times [2022-03-20 02:44:52,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:44:52,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695067293] [2022-03-20 02:44:52,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:44:52,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:44:52,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:52,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:44:52,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:52,270 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-03-20 02:44:52,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:44:52,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695067293] [2022-03-20 02:44:52,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695067293] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:44:52,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:44:52,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:44:52,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753370677] [2022-03-20 02:44:52,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:44:52,272 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:44:52,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:44:52,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:44:52,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:44:52,273 INFO L87 Difference]: Start difference. First operand 831 states and 1193 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:54,282 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:44:54,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:44:54,728 INFO L93 Difference]: Finished difference Result 2105 states and 3035 transitions. [2022-03-20 02:44:54,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:44:54,728 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 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 171 [2022-03-20 02:44:54,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:44:54,733 INFO L225 Difference]: With dead ends: 2105 [2022-03-20 02:44:54,733 INFO L226 Difference]: Without dead ends: 1290 [2022-03-20 02:44:54,735 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:44:54,735 INFO L913 BasicCegarLoop]: 102 mSDtfsCounter, 109 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 02:44:54,735 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 288 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 389 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 02:44:54,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1290 states. [2022-03-20 02:44:54,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1290 to 941. [2022-03-20 02:44:54,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 936 states have (on average 1.4465811965811965) internal successors, (1354), 936 states have internal predecessors, (1354), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:54,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1358 transitions. [2022-03-20 02:44:54,761 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1358 transitions. Word has length 171 [2022-03-20 02:44:54,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:44:54,761 INFO L478 AbstractCegarLoop]: Abstraction has 941 states and 1358 transitions. [2022-03-20 02:44:54,761 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:54,761 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1358 transitions. [2022-03-20 02:44:54,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-03-20 02:44:54,764 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:44:54,764 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:44:54,764 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 02:44:54,764 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:44:54,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:44:54,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1837109397, now seen corresponding path program 1 times [2022-03-20 02:44:54,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:44:54,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33882670] [2022-03-20 02:44:54,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:44:54,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:44:54,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:54,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:44:54,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:54,959 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 270 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2022-03-20 02:44:54,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:44:54,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33882670] [2022-03-20 02:44:54,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33882670] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:44:54,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:44:54,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:44:54,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94652370] [2022-03-20 02:44:54,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:44:54,960 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:44:54,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:44:54,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:44:54,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:44:54,961 INFO L87 Difference]: Start difference. First operand 941 states and 1358 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:56,972 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 [] [2022-03-20 02:44:57,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:44:57,339 INFO L93 Difference]: Finished difference Result 2235 states and 3235 transitions. [2022-03-20 02:44:57,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:44:57,339 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 172 [2022-03-20 02:44:57,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:44:57,344 INFO L225 Difference]: With dead ends: 2235 [2022-03-20 02:44:57,344 INFO L226 Difference]: Without dead ends: 1310 [2022-03-20 02:44:57,345 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 [2022-03-20 02:44:57,346 INFO L913 BasicCegarLoop]: 97 mSDtfsCounter, 110 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 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, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 02:44:57,346 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 02:44:57,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2022-03-20 02:44:57,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 956. [2022-03-20 02:44:57,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 956 states, 951 states have (on average 1.444794952681388) internal successors, (1374), 951 states have internal predecessors, (1374), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:57,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 956 states to 956 states and 1378 transitions. [2022-03-20 02:44:57,373 INFO L78 Accepts]: Start accepts. Automaton has 956 states and 1378 transitions. Word has length 172 [2022-03-20 02:44:57,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:44:57,373 INFO L478 AbstractCegarLoop]: Abstraction has 956 states and 1378 transitions. [2022-03-20 02:44:57,374 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:57,374 INFO L276 IsEmpty]: Start isEmpty. Operand 956 states and 1378 transitions. [2022-03-20 02:44:57,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-03-20 02:44:57,376 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:44:57,376 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 4, 4, 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] [2022-03-20 02:44:57,376 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 02:44:57,376 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:44:57,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:44:57,377 INFO L85 PathProgramCache]: Analyzing trace with hash -68628705, now seen corresponding path program 1 times [2022-03-20 02:44:57,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:44:57,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290167002] [2022-03-20 02:44:57,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:44:57,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:44:57,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:57,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:44:57,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:44:57,631 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 273 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-03-20 02:44:57,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:44:57,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290167002] [2022-03-20 02:44:57,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290167002] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:44:57,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:44:57,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:44:57,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284719261] [2022-03-20 02:44:57,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:44:57,632 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:44:57,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:44:57,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:44:57,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:44:57,633 INFO L87 Difference]: Start difference. First operand 956 states and 1378 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:44:59,645 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:45:00,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:45:00,120 INFO L93 Difference]: Finished difference Result 2098 states and 3039 transitions. [2022-03-20 02:45:00,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 02:45:00,121 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 172 [2022-03-20 02:45:00,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:45:00,124 INFO L225 Difference]: With dead ends: 2098 [2022-03-20 02:45:00,124 INFO L226 Difference]: Without dead ends: 1158 [2022-03-20 02:45:00,126 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:45:00,127 INFO L913 BasicCegarLoop]: 218 mSDtfsCounter, 69 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 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, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 02:45:00,127 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 525 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 02:45:00,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2022-03-20 02:45:00,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 968. [2022-03-20 02:45:00,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.439252336448598) internal successors, (1386), 963 states have internal predecessors, (1386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:45:00,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1390 transitions. [2022-03-20 02:45:00,152 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1390 transitions. Word has length 172 [2022-03-20 02:45:00,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:45:00,152 INFO L478 AbstractCegarLoop]: Abstraction has 968 states and 1390 transitions. [2022-03-20 02:45:00,152 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 02:45:00,152 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1390 transitions. [2022-03-20 02:45:00,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-03-20 02:45:00,155 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:45:00,155 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 4, 4, 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] [2022-03-20 02:45:00,155 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 02:45:00,155 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:45:00,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:45:00,155 INFO L85 PathProgramCache]: Analyzing trace with hash 506446570, now seen corresponding path program 1 times [2022-03-20 02:45:00,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:45:00,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075013533] [2022-03-20 02:45:00,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:45:00,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:45:00,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:45:00,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:45:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:45:00,397 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 105 proven. 5 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2022-03-20 02:45:00,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:45:00,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075013533] [2022-03-20 02:45:00,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075013533] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 02:45:00,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713876659] [2022-03-20 02:45:00,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:45:00,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 02:45:00,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:45:00,403 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 02:45:00,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 02:45:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:45:01,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 1545 conjuncts, 15 conjunts are in the unsatisfiable core [2022-03-20 02:45:01,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 02:45:01,463 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-03-20 02:45:01,464 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 143 [2022-03-20 02:45:01,471 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 63 [2022-03-20 02:45:01,482 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-20 02:45:01,494 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