/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/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loops/s3.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-5d317bd [2022-03-19 02:20:16,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-19 02:20:16,778 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-19 02:20:16,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-19 02:20:16,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-19 02:20:16,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-19 02:20:16,818 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-19 02:20:16,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-19 02:20:16,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-19 02:20:16,826 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-19 02:20:16,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-19 02:20:16,828 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-19 02:20:16,828 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-19 02:20:16,830 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-19 02:20:16,830 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-19 02:20:16,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-19 02:20:16,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-19 02:20:16,834 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-19 02:20:16,836 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-19 02:20:16,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-19 02:20:16,840 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-19 02:20:16,842 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-19 02:20:16,842 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-19 02:20:16,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-19 02:20:16,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-19 02:20:16,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-19 02:20:16,852 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-19 02:20:16,853 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-19 02:20:16,854 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-19 02:20:16,855 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-03-19 02:20:16,865 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-19 02:20:16,865 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-19 02:20:16,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-19 02:20:16,868 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-19 02:20:16,868 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-19 02:20:16,868 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-19 02:20:16,868 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-19 02:20:16,868 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-19 02:20:16,868 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-19 02:20:16,869 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-19 02:20:16,869 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-19 02:20:16,869 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-19 02:20:16,869 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-19 02:20:16,869 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-19 02:20:16,869 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-19 02:20:16,869 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-19 02:20:16,869 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-19 02:20:16,870 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-19 02:20:16,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 02:20:16,870 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-19 02:20:16,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-19 02:20:16,870 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-19 02:20:16,870 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-19 02:20:16,870 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-19 02:20:16,870 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-03-19 02:20:16,871 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-19 02:20:17,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-19 02:20:17,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-19 02:20:17,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-19 02:20:17,081 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-19 02:20:17,082 INFO L275 PluginConnector]: CDTParser initialized [2022-03-19 02:20:17,083 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/s3.i [2022-03-19 02:20:17,131 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ad023a1c/19fc39a30c334694a7ad667d721e23db/FLAGe934dcb7e [2022-03-19 02:20:17,564 INFO L306 CDTParser]: Found 1 translation units. [2022-03-19 02:20:17,564 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/s3.i [2022-03-19 02:20:17,580 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ad023a1c/19fc39a30c334694a7ad667d721e23db/FLAGe934dcb7e [2022-03-19 02:20:17,595 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ad023a1c/19fc39a30c334694a7ad667d721e23db [2022-03-19 02:20:17,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-19 02:20:17,600 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-19 02:20:17,601 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-19 02:20:17,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-19 02:20:17,603 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-19 02:20:17,604 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 02:20:17" (1/1) ... [2022-03-19 02:20:17,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1903a125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:20:17, skipping insertion in model container [2022-03-19 02:20:17,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 02:20:17" (1/1) ... [2022-03-19 02:20:17,610 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-19 02:20:17,657 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-19 02:20:17,968 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/s3.i[64167,64180] [2022-03-19 02:20:17,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 02:20:17,996 INFO L203 MainTranslator]: Completed pre-run [2022-03-19 02:20:18,076 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/s3.i[64167,64180] [2022-03-19 02:20:18,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 02:20:18,096 INFO L208 MainTranslator]: Completed translation [2022-03-19 02:20:18,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:20:18 WrapperNode [2022-03-19 02:20:18,096 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-19 02:20:18,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-19 02:20:18,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-19 02:20:18,097 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-19 02:20:18,106 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:20:18" (1/1) ... [2022-03-19 02:20:18,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:20:18" (1/1) ... [2022-03-19 02:20:18,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:20:18" (1/1) ... [2022-03-19 02:20:18,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:20:18" (1/1) ... [2022-03-19 02:20:18,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:20:18" (1/1) ... [2022-03-19 02:20:18,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:20:18" (1/1) ... [2022-03-19 02:20:18,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:20:18" (1/1) ... [2022-03-19 02:20:18,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-19 02:20:18,184 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-19 02:20:18,184 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-19 02:20:18,184 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-19 02:20:18,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:20:18" (1/1) ... [2022-03-19 02:20:18,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 02:20:18,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:20:18,213 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) [2022-03-19 02:20:18,214 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 [2022-03-19 02:20:18,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-19 02:20:18,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-19 02:20:18,261 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-19 02:20:18,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2022-03-19 02:20:18,261 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2022-03-19 02:20:18,261 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-19 02:20:18,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-03-19 02:20:18,261 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-19 02:20:18,261 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-19 02:20:18,261 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-19 02:20:18,261 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-19 02:20:18,261 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-19 02:20:18,261 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-19 02:20:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-19 02:20:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-19 02:20:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-19 02:20:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-19 02:20:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-19 02:20:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-19 02:20:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2022-03-19 02:20:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-19 02:20:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-03-19 02:20:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2022-03-19 02:20:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-19 02:20:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-19 02:20:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-19 02:20:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-19 02:20:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-19 02:20:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-19 02:20:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-19 02:20:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-19 02:20:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-19 02:20:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-19 02:20:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-19 02:20:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-19 02:20:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-19 02:20:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-19 02:20:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-19 02:20:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-19 02:20:18,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-19 02:20:18,430 INFO L234 CfgBuilder]: Building ICFG [2022-03-19 02:20:18,431 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-19 02:20:19,197 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-19 02:20:19,499 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-03-19 02:20:19,499 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-03-19 02:20:19,518 INFO L275 CfgBuilder]: Performing block encoding [2022-03-19 02:20:19,525 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-19 02:20:19,525 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-19 02:20:19,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 02:20:19 BoogieIcfgContainer [2022-03-19 02:20:19,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-19 02:20:19,528 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-19 02:20:19,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-19 02:20:19,530 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-19 02:20:19,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.03 02:20:17" (1/3) ... [2022-03-19 02:20:19,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db4fb58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 02:20:19, skipping insertion in model container [2022-03-19 02:20:19,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:20:18" (2/3) ... [2022-03-19 02:20:19,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5db4fb58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 02:20:19, skipping insertion in model container [2022-03-19 02:20:19,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 02:20:19" (3/3) ... [2022-03-19 02:20:19,532 INFO L111 eAbstractionObserver]: Analyzing ICFG s3.i [2022-03-19 02:20:19,536 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-19 02:20:19,536 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-19 02:20:19,570 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-19 02:20:19,575 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-19 02:20:19,575 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-19 02:20:19,590 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 132 states have (on average 1.6742424242424243) internal successors, (221), 133 states have internal predecessors, (221), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-19 02:20:19,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-03-19 02:20:19,604 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:20:19,604 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:20:19,605 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:20:19,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:20:19,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1896540148, now seen corresponding path program 1 times [2022-03-19 02:20:19,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:20:19,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [960921401] [2022-03-19 02:20:19,621 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:20:19,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1896540148, now seen corresponding path program 2 times [2022-03-19 02:20:19,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:20:19,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485119768] [2022-03-19 02:20:19,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:20:19,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:20:19,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:20:20,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:20:20,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:20:20,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:20:20,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:20:20,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485119768] [2022-03-19 02:20:20,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485119768] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:20:20,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:20:20,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 02:20:20,072 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:20:20,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [960921401] [2022-03-19 02:20:20,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [960921401] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:20:20,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:20:20,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 02:20:20,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612499955] [2022-03-19 02:20:20,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:20:20,076 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 02:20:20,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:20:20,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 02:20:20,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:20:20,108 INFO L87 Difference]: Start difference. First operand has 140 states, 132 states have (on average 1.6742424242424243) internal successors, (221), 133 states have internal predecessors, (221), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 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) [2022-03-19 02:20:22,138 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 [] [2022-03-19 02:20:22,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:20:22,512 INFO L93 Difference]: Finished difference Result 385 states and 637 transitions. [2022-03-19 02:20:22,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 02:20:22,516 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 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 [2022-03-19 02:20:22,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:20:22,523 INFO L225 Difference]: With dead ends: 385 [2022-03-19 02:20:22,523 INFO L226 Difference]: Without dead ends: 223 [2022-03-19 02:20:22,526 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:20:22,535 INFO L912 BasicCegarLoop]: 215 mSDtfsCounter, 179 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 02:20:22,535 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 419 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 237 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 02:20:22,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-03-19 02:20:22,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2022-03-19 02:20:22,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 218 states have (on average 1.481651376146789) internal successors, (323), 218 states have internal predecessors, (323), 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) [2022-03-19 02:20:22,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 327 transitions. [2022-03-19 02:20:22,592 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 327 transitions. Word has length 30 [2022-03-19 02:20:22,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:20:22,592 INFO L478 AbstractCegarLoop]: Abstraction has 223 states and 327 transitions. [2022-03-19 02:20:22,593 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 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) [2022-03-19 02:20:22,593 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 327 transitions. [2022-03-19 02:20:22,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-03-19 02:20:22,596 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:20:22,596 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:20:22,596 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-19 02:20:22,597 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:20:22,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:20:22,597 INFO L85 PathProgramCache]: Analyzing trace with hash 969835136, now seen corresponding path program 1 times [2022-03-19 02:20:22,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:20:22,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [768844690] [2022-03-19 02:20:22,598 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 02:20:22,598 INFO L85 PathProgramCache]: Analyzing trace with hash 969835136, now seen corresponding path program 2 times [2022-03-19 02:20:22,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:20:22,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138254857] [2022-03-19 02:20:22,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:20:22,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:20:22,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:20:22,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:20:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:20:22,783 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:20:22,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:20:22,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138254857] [2022-03-19 02:20:22,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138254857] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:20:22,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:20:22,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 02:20:22,788 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:20:22,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [768844690] [2022-03-19 02:20:22,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [768844690] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:20:22,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:20:22,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 02:20:22,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533082795] [2022-03-19 02:20:22,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:20:22,789 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 02:20:22,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:20:22,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 02:20:22,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:20:22,789 INFO L87 Difference]: Start difference. First operand 223 states and 327 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:20:24,806 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 [] [2022-03-19 02:20:25,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:20:25,270 INFO L93 Difference]: Finished difference Result 432 states and 642 transitions. [2022-03-19 02:20:25,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 02:20:25,270 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2022-03-19 02:20:25,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:20:25,272 INFO L225 Difference]: With dead ends: 432 [2022-03-19 02:20:25,272 INFO L226 Difference]: Without dead ends: 325 [2022-03-19 02:20:25,273 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:20:25,273 INFO L912 BasicCegarLoop]: 312 mSDtfsCounter, 126 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:20:25,274 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 476 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 336 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 02:20:25,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-03-19 02:20:25,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2022-03-19 02:20:25,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 320 states have (on average 1.475) internal successors, (472), 320 states have internal predecessors, (472), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:20:25,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 476 transitions. [2022-03-19 02:20:25,299 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 476 transitions. Word has length 45 [2022-03-19 02:20:25,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:20:25,299 INFO L478 AbstractCegarLoop]: Abstraction has 325 states and 476 transitions. [2022-03-19 02:20:25,299 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:20:25,299 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 476 transitions. [2022-03-19 02:20:25,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-19 02:20:25,301 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:20:25,301 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:20:25,301 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-19 02:20:25,301 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:20:25,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:20:25,302 INFO L85 PathProgramCache]: Analyzing trace with hash -2112862728, now seen corresponding path program 1 times [2022-03-19 02:20:25,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:20:25,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1442668962] [2022-03-19 02:20:25,302 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 02:20:25,302 INFO L85 PathProgramCache]: Analyzing trace with hash -2112862728, now seen corresponding path program 2 times [2022-03-19 02:20:25,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:20:25,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12850102] [2022-03-19 02:20:25,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:20:25,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:20:25,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:20:25,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:20:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:20:25,471 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-19 02:20:25,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:20:25,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12850102] [2022-03-19 02:20:25,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12850102] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:20:25,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:20:25,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:20:25,472 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:20:25,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1442668962] [2022-03-19 02:20:25,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1442668962] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:20:25,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:20:25,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:20:25,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437243948] [2022-03-19 02:20:25,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:20:25,473 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:20:25,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:20:25,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:20:25,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:20:25,474 INFO L87 Difference]: Start difference. First operand 325 states and 476 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:20:27,483 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 [] [2022-03-19 02:20:27,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:20:27,959 INFO L93 Difference]: Finished difference Result 825 states and 1216 transitions. [2022-03-19 02:20:27,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:20:27,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-03-19 02:20:27,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:20:27,961 INFO L225 Difference]: With dead ends: 825 [2022-03-19 02:20:27,961 INFO L226 Difference]: Without dead ends: 513 [2022-03-19 02:20:27,962 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:20:27,963 INFO L912 BasicCegarLoop]: 245 mSDtfsCounter, 98 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:20:27,963 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 582 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 552 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 02:20:27,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-03-19 02:20:27,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 375. [2022-03-19 02:20:27,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 370 states have (on average 1.508108108108108) internal successors, (558), 370 states have internal predecessors, (558), 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) [2022-03-19 02:20:27,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 562 transitions. [2022-03-19 02:20:27,977 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 562 transitions. Word has length 63 [2022-03-19 02:20:27,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:20:27,978 INFO L478 AbstractCegarLoop]: Abstraction has 375 states and 562 transitions. [2022-03-19 02:20:27,978 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:20:27,978 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 562 transitions. [2022-03-19 02:20:27,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-19 02:20:27,980 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:20:27,980 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:20:27,980 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-19 02:20:27,980 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:20:27,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:20:27,980 INFO L85 PathProgramCache]: Analyzing trace with hash 2048091062, now seen corresponding path program 1 times [2022-03-19 02:20:27,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:20:27,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [754907105] [2022-03-19 02:20:27,981 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 02:20:27,981 INFO L85 PathProgramCache]: Analyzing trace with hash 2048091062, now seen corresponding path program 2 times [2022-03-19 02:20:27,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:20:27,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032525523] [2022-03-19 02:20:27,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:20:27,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:20:28,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:20:28,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:20:28,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:20:28,139 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-19 02:20:28,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:20:28,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032525523] [2022-03-19 02:20:28,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032525523] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:20:28,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:20:28,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:20:28,140 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:20:28,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [754907105] [2022-03-19 02:20:28,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [754907105] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:20:28,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:20:28,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:20:28,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037797327] [2022-03-19 02:20:28,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:20:28,141 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:20:28,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:20:28,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:20:28,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:20:28,142 INFO L87 Difference]: Start difference. First operand 375 states and 562 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:20:30,159 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 [] [2022-03-19 02:20:30,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:20:30,579 INFO L93 Difference]: Finished difference Result 1012 states and 1518 transitions. [2022-03-19 02:20:30,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:20:30,580 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-03-19 02:20:30,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:20:30,582 INFO L225 Difference]: With dead ends: 1012 [2022-03-19 02:20:30,582 INFO L226 Difference]: Without dead ends: 650 [2022-03-19 02:20:30,583 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:20:30,584 INFO L912 BasicCegarLoop]: 99 mSDtfsCounter, 108 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:20:30,584 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 285 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 02:20:30,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2022-03-19 02:20:30,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 397. [2022-03-19 02:20:30,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 392 states have (on average 1.5255102040816326) internal successors, (598), 392 states have internal predecessors, (598), 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) [2022-03-19 02:20:30,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 602 transitions. [2022-03-19 02:20:30,602 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 602 transitions. Word has length 63 [2022-03-19 02:20:30,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:20:30,602 INFO L478 AbstractCegarLoop]: Abstraction has 397 states and 602 transitions. [2022-03-19 02:20:30,602 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:20:30,602 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 602 transitions. [2022-03-19 02:20:30,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-19 02:20:30,603 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:20:30,604 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:20:30,604 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-19 02:20:30,604 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:20:30,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:20:30,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1078652993, now seen corresponding path program 1 times [2022-03-19 02:20:30,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:20:30,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2074145480] [2022-03-19 02:20:30,605 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 02:20:30,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1078652993, now seen corresponding path program 2 times [2022-03-19 02:20:30,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:20:30,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929129193] [2022-03-19 02:20:30,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:20:30,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:20:30,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:20:30,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:20:30,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:20:30,749 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-19 02:20:30,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:20:30,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929129193] [2022-03-19 02:20:30,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929129193] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:20:30,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:20:30,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:20:30,749 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:20:30,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2074145480] [2022-03-19 02:20:30,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2074145480] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:20:30,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:20:30,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:20:30,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097899271] [2022-03-19 02:20:30,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:20:30,750 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:20:30,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:20:30,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:20:30,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:20:30,751 INFO L87 Difference]: Start difference. First operand 397 states and 602 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) [2022-03-19 02:20:32,764 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 [] [2022-03-19 02:20:33,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:20:33,175 INFO L93 Difference]: Finished difference Result 1056 states and 1598 transitions. [2022-03-19 02:20:33,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:20:33,176 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 64 [2022-03-19 02:20:33,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:20:33,179 INFO L225 Difference]: With dead ends: 1056 [2022-03-19 02:20:33,179 INFO L226 Difference]: Without dead ends: 672 [2022-03-19 02:20:33,180 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:20:33,180 INFO L912 BasicCegarLoop]: 99 mSDtfsCounter, 108 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:20:33,180 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 284 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 02:20:33,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2022-03-19 02:20:33,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 472. [2022-03-19 02:20:33,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 467 states have (on average 1.563169164882227) internal successors, (730), 467 states have internal predecessors, (730), 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) [2022-03-19 02:20:33,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 734 transitions. [2022-03-19 02:20:33,204 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 734 transitions. Word has length 64 [2022-03-19 02:20:33,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:20:33,204 INFO L478 AbstractCegarLoop]: Abstraction has 472 states and 734 transitions. [2022-03-19 02:20:33,204 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) [2022-03-19 02:20:33,204 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 734 transitions. [2022-03-19 02:20:33,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-19 02:20:33,205 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:20:33,205 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:20:33,205 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-19 02:20:33,206 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:20:33,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:20:33,206 INFO L85 PathProgramCache]: Analyzing trace with hash 917238579, now seen corresponding path program 1 times [2022-03-19 02:20:33,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:20:33,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [220702978] [2022-03-19 02:20:33,207 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 02:20:33,207 INFO L85 PathProgramCache]: Analyzing trace with hash 917238579, now seen corresponding path program 2 times [2022-03-19 02:20:33,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:20:33,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284442877] [2022-03-19 02:20:33,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:20:33,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:20:33,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:20:33,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:20:33,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:20:33,367 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-19 02:20:33,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:20:33,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284442877] [2022-03-19 02:20:33,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284442877] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:20:33,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:20:33,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:20:33,369 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:20:33,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [220702978] [2022-03-19 02:20:33,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [220702978] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:20:33,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:20:33,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:20:33,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142632735] [2022-03-19 02:20:33,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:20:33,370 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:20:33,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:20:33,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:20:33,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:20:33,371 INFO L87 Difference]: Start difference. First operand 472 states and 734 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:20:35,383 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 [] [2022-03-19 02:20:35,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:20:35,895 INFO L93 Difference]: Finished difference Result 1113 states and 1721 transitions. [2022-03-19 02:20:35,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:20:35,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-19 02:20:35,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:20:35,898 INFO L225 Difference]: With dead ends: 1113 [2022-03-19 02:20:35,898 INFO L226 Difference]: Without dead ends: 654 [2022-03-19 02:20:35,899 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:20:35,899 INFO L912 BasicCegarLoop]: 241 mSDtfsCounter, 91 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-19 02:20:35,899 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 574 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 544 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-19 02:20:35,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2022-03-19 02:20:35,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 526. [2022-03-19 02:20:35,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 521 states have (on average 1.5738963531669865) internal successors, (820), 521 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) [2022-03-19 02:20:35,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 824 transitions. [2022-03-19 02:20:35,921 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 824 transitions. Word has length 65 [2022-03-19 02:20:35,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:20:35,922 INFO L478 AbstractCegarLoop]: Abstraction has 526 states and 824 transitions. [2022-03-19 02:20:35,922 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:20:35,922 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 824 transitions. [2022-03-19 02:20:35,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-19 02:20:35,923 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:20:35,924 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:20:35,924 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-19 02:20:35,924 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:20:35,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:20:35,924 INFO L85 PathProgramCache]: Analyzing trace with hash 979278193, now seen corresponding path program 1 times [2022-03-19 02:20:35,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:20:35,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1218048413] [2022-03-19 02:20:35,925 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 02:20:35,925 INFO L85 PathProgramCache]: Analyzing trace with hash 979278193, now seen corresponding path program 2 times [2022-03-19 02:20:35,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:20:35,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916564367] [2022-03-19 02:20:35,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:20:35,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:20:35,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:20:36,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:20:36,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:20:36,056 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-19 02:20:36,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:20:36,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916564367] [2022-03-19 02:20:36,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916564367] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:20:36,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:20:36,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:20:36,057 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:20:36,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1218048413] [2022-03-19 02:20:36,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1218048413] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:20:36,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:20:36,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:20:36,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089958835] [2022-03-19 02:20:36,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:20:36,058 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:20:36,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:20:36,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:20:36,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:20:36,059 INFO L87 Difference]: Start difference. First operand 526 states and 824 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:20:38,069 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 [] [2022-03-19 02:20:38,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:20:38,490 INFO L93 Difference]: Finished difference Result 1314 states and 2036 transitions. [2022-03-19 02:20:38,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:20:38,490 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-19 02:20:38,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:20:38,493 INFO L225 Difference]: With dead ends: 1314 [2022-03-19 02:20:38,493 INFO L226 Difference]: Without dead ends: 801 [2022-03-19 02:20:38,494 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:20:38,494 INFO L912 BasicCegarLoop]: 99 mSDtfsCounter, 106 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:20:38,495 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 284 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 02:20:38,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2022-03-19 02:20:38,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 550. [2022-03-19 02:20:38,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.581651376146789) internal successors, (862), 545 states have internal predecessors, (862), 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) [2022-03-19 02:20:38,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 866 transitions. [2022-03-19 02:20:38,517 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 866 transitions. Word has length 65 [2022-03-19 02:20:38,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:20:38,517 INFO L478 AbstractCegarLoop]: Abstraction has 550 states and 866 transitions. [2022-03-19 02:20:38,517 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:20:38,517 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 866 transitions. [2022-03-19 02:20:38,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-19 02:20:38,518 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:20:38,518 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:20:38,518 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-19 02:20:38,518 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:20:38,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:20:38,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1634852198, now seen corresponding path program 1 times [2022-03-19 02:20:38,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:20:38,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2115574981] [2022-03-19 02:20:38,519 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 02:20:38,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1634852198, now seen corresponding path program 2 times [2022-03-19 02:20:38,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:20:38,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889927229] [2022-03-19 02:20:38,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:20:38,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:20:38,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:20:38,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:20:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:20:38,627 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-19 02:20:38,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:20:38,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889927229] [2022-03-19 02:20:38,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889927229] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:20:38,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:20:38,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:20:38,628 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:20:38,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2115574981] [2022-03-19 02:20:38,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2115574981] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:20:38,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:20:38,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:20:38,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992396516] [2022-03-19 02:20:38,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:20:38,629 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:20:38,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:20:38,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:20:38,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:20:38,629 INFO L87 Difference]: Start difference. First operand 550 states and 866 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:20:40,637 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 [] [2022-03-19 02:20:41,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:20:41,208 INFO L93 Difference]: Finished difference Result 1259 states and 1971 transitions. [2022-03-19 02:20:41,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:20:41,209 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-19 02:20:41,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:20:41,211 INFO L225 Difference]: With dead ends: 1259 [2022-03-19 02:20:41,211 INFO L226 Difference]: Without dead ends: 722 [2022-03-19 02:20:41,212 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:20:41,212 INFO L912 BasicCegarLoop]: 236 mSDtfsCounter, 84 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-19 02:20:41,213 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 564 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 528 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-19 02:20:41,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2022-03-19 02:20:41,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 606. [2022-03-19 02:20:41,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 601 states have (on average 1.5873544093178036) internal successors, (954), 601 states have internal predecessors, (954), 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) [2022-03-19 02:20:41,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 958 transitions. [2022-03-19 02:20:41,237 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 958 transitions. Word has length 66 [2022-03-19 02:20:41,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:20:41,237 INFO L478 AbstractCegarLoop]: Abstraction has 606 states and 958 transitions. [2022-03-19 02:20:41,237 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:20:41,237 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 958 transitions. [2022-03-19 02:20:41,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-19 02:20:41,238 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:20:41,238 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:20:41,238 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-19 02:20:41,238 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:20:41,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:20:41,239 INFO L85 PathProgramCache]: Analyzing trace with hash 288375836, now seen corresponding path program 1 times [2022-03-19 02:20:41,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:20:41,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1827596750] [2022-03-19 02:20:41,239 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 02:20:41,239 INFO L85 PathProgramCache]: Analyzing trace with hash 288375836, now seen corresponding path program 2 times [2022-03-19 02:20:41,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:20:41,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252606047] [2022-03-19 02:20:41,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:20:41,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:20:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:20:41,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:20:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:20:41,357 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-19 02:20:41,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:20:41,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252606047] [2022-03-19 02:20:41,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252606047] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:20:41,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:20:41,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:20:41,358 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:20:41,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1827596750] [2022-03-19 02:20:41,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1827596750] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:20:41,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:20:41,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:20:41,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422816741] [2022-03-19 02:20:41,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:20:41,359 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:20:41,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:20:41,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:20:41,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:20:41,360 INFO L87 Difference]: Start difference. First operand 606 states and 958 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:20:43,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:20:43,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:20:43,802 INFO L93 Difference]: Finished difference Result 1399 states and 2175 transitions. [2022-03-19 02:20:43,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:20:43,803 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-19 02:20:43,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:20:43,805 INFO L225 Difference]: With dead ends: 1399 [2022-03-19 02:20:43,805 INFO L226 Difference]: Without dead ends: 806 [2022-03-19 02:20:43,807 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:20:43,807 INFO L912 BasicCegarLoop]: 106 mSDtfsCounter, 105 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:20:43,807 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 298 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 391 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 02:20:43,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2022-03-19 02:20:43,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 556. [2022-03-19 02:20:43,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.5807622504537204) internal successors, (871), 551 states have internal predecessors, (871), 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) [2022-03-19 02:20:43,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 875 transitions. [2022-03-19 02:20:43,847 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 875 transitions. Word has length 66 [2022-03-19 02:20:43,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:20:43,847 INFO L478 AbstractCegarLoop]: Abstraction has 556 states and 875 transitions. [2022-03-19 02:20:43,847 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:20:43,847 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 875 transitions. [2022-03-19 02:20:43,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-19 02:20:43,851 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:20:43,851 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:20:43,852 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-19 02:20:43,852 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:20:43,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:20:43,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1163380997, now seen corresponding path program 1 times [2022-03-19 02:20:43,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:20:43,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1872443296] [2022-03-19 02:20:43,853 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 02:20:43,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1163380997, now seen corresponding path program 2 times [2022-03-19 02:20:43,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:20:43,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948033015] [2022-03-19 02:20:43,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:20:43,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:20:43,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:20:43,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:20:43,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:20:43,959 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-19 02:20:43,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:20:43,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948033015] [2022-03-19 02:20:43,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948033015] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:20:43,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:20:43,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:20:43,960 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:20:43,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1872443296] [2022-03-19 02:20:43,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1872443296] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:20:43,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:20:43,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:20:43,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316283896] [2022-03-19 02:20:43,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:20:43,960 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:20:43,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:20:43,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:20:43,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:20:43,961 INFO L87 Difference]: Start difference. First operand 556 states and 875 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:20:45,974 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 [] [2022-03-19 02:20:46,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:20:46,542 INFO L93 Difference]: Finished difference Result 1271 states and 1987 transitions. [2022-03-19 02:20:46,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:20:46,542 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 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 84 [2022-03-19 02:20:46,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:20:46,545 INFO L225 Difference]: With dead ends: 1271 [2022-03-19 02:20:46,545 INFO L226 Difference]: Without dead ends: 728 [2022-03-19 02:20:46,546 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:20:46,547 INFO L912 BasicCegarLoop]: 236 mSDtfsCounter, 88 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-19 02:20:46,547 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 564 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 528 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-19 02:20:46,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2022-03-19 02:20:46,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 602. [2022-03-19 02:20:46,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 597 states have (on average 1.5896147403685092) internal successors, (949), 597 states have internal predecessors, (949), 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) [2022-03-19 02:20:46,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 953 transitions. [2022-03-19 02:20:46,574 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 953 transitions. Word has length 84 [2022-03-19 02:20:46,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:20:46,575 INFO L478 AbstractCegarLoop]: Abstraction has 602 states and 953 transitions. [2022-03-19 02:20:46,575 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:20:46,575 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 953 transitions. [2022-03-19 02:20:46,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-19 02:20:46,576 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:20:46,576 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:20:46,576 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-19 02:20:46,576 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:20:46,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:20:46,577 INFO L85 PathProgramCache]: Analyzing trace with hash 2056867335, now seen corresponding path program 1 times [2022-03-19 02:20:46,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:20:46,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2104857330] [2022-03-19 02:20:46,577 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 02:20:46,577 INFO L85 PathProgramCache]: Analyzing trace with hash 2056867335, now seen corresponding path program 2 times [2022-03-19 02:20:46,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:20:46,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214707242] [2022-03-19 02:20:46,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:20:46,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:20:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:20:46,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:20:46,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:20:46,696 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-19 02:20:46,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:20:46,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214707242] [2022-03-19 02:20:46,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214707242] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:20:46,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:20:46,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:20:46,697 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:20:46,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2104857330] [2022-03-19 02:20:46,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2104857330] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:20:46,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:20:46,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:20:46,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388336261] [2022-03-19 02:20:46,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:20:46,697 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:20:46,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:20:46,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:20:46,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:20:46,698 INFO L87 Difference]: Start difference. First operand 602 states and 953 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:20:48,707 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 [] [2022-03-19 02:20:49,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:20:49,094 INFO L93 Difference]: Finished difference Result 1275 states and 2014 transitions. [2022-03-19 02:20:49,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:20:49,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-19 02:20:49,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:20:49,097 INFO L225 Difference]: With dead ends: 1275 [2022-03-19 02:20:49,097 INFO L226 Difference]: Without dead ends: 686 [2022-03-19 02:20:49,098 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:20:49,098 INFO L912 BasicCegarLoop]: 209 mSDtfsCounter, 38 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 02:20:49,099 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 510 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 386 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 02:20:49,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2022-03-19 02:20:49,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 642. [2022-03-19 02:20:49,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 637 states have (on average 1.596546310832025) internal successors, (1017), 637 states have internal predecessors, (1017), 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) [2022-03-19 02:20:49,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 1021 transitions. [2022-03-19 02:20:49,127 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 1021 transitions. Word has length 84 [2022-03-19 02:20:49,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:20:49,127 INFO L478 AbstractCegarLoop]: Abstraction has 642 states and 1021 transitions. [2022-03-19 02:20:49,127 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:20:49,127 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 1021 transitions. [2022-03-19 02:20:49,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-19 02:20:49,128 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:20:49,128 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:20:49,129 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-19 02:20:49,129 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:20:49,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:20:49,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1451323138, now seen corresponding path program 1 times [2022-03-19 02:20:49,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:20:49,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [800161587] [2022-03-19 02:20:49,130 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 02:20:49,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1451323138, now seen corresponding path program 2 times [2022-03-19 02:20:49,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:20:49,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907050150] [2022-03-19 02:20:49,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:20:49,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:20:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:20:49,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:20:49,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:20:49,235 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-19 02:20:49,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:20:49,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907050150] [2022-03-19 02:20:49,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907050150] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:20:49,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:20:49,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:20:49,235 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:20:49,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [800161587] [2022-03-19 02:20:49,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [800161587] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:20:49,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:20:49,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:20:49,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021187693] [2022-03-19 02:20:49,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:20:49,236 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:20:49,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:20:49,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:20:49,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:20:49,237 INFO L87 Difference]: Start difference. First operand 642 states and 1021 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:20:51,245 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 [] [2022-03-19 02:20:51,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:20:51,779 INFO L93 Difference]: Finished difference Result 1391 states and 2192 transitions. [2022-03-19 02:20:51,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:20:51,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 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 85 [2022-03-19 02:20:51,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:20:51,782 INFO L225 Difference]: With dead ends: 1391 [2022-03-19 02:20:51,782 INFO L226 Difference]: Without dead ends: 762 [2022-03-19 02:20:51,783 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:20:51,784 INFO L912 BasicCegarLoop]: 232 mSDtfsCounter, 83 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-19 02:20:51,784 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 556 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 520 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-19 02:20:51,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2022-03-19 02:20:51,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 644. [2022-03-19 02:20:51,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 639 states have (on average 1.594679186228482) internal successors, (1019), 639 states have internal predecessors, (1019), 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) [2022-03-19 02:20:51,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 1023 transitions. [2022-03-19 02:20:51,813 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 1023 transitions. Word has length 85 [2022-03-19 02:20:51,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:20:51,813 INFO L478 AbstractCegarLoop]: Abstraction has 644 states and 1023 transitions. [2022-03-19 02:20:51,813 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:20:51,813 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 1023 transitions. [2022-03-19 02:20:51,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-03-19 02:20:51,814 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:20:51,814 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:20:51,814 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-19 02:20:51,814 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:20:51,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:20:51,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1229992776, now seen corresponding path program 1 times [2022-03-19 02:20:51,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:20:51,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1962566913] [2022-03-19 02:20:51,815 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 02:20:51,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1229992776, now seen corresponding path program 2 times [2022-03-19 02:20:51,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:20:51,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4289715] [2022-03-19 02:20:51,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:20:51,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:20:51,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:20:51,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:20:51,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:20:51,917 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-19 02:20:51,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:20:51,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4289715] [2022-03-19 02:20:51,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4289715] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:20:51,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:20:51,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:20:51,918 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:20:51,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1962566913] [2022-03-19 02:20:51,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1962566913] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:20:51,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:20:51,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:20:51,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700736317] [2022-03-19 02:20:51,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:20:51,919 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:20:51,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:20:51,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:20:51,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:20:51,919 INFO L87 Difference]: Start difference. First operand 644 states and 1023 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:20:53,928 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 [] [2022-03-19 02:20:54,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:20:54,532 INFO L93 Difference]: Finished difference Result 1391 states and 2190 transitions. [2022-03-19 02:20:54,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:20:54,532 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 99 [2022-03-19 02:20:54,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:20:54,535 INFO L225 Difference]: With dead ends: 1391 [2022-03-19 02:20:54,535 INFO L226 Difference]: Without dead ends: 760 [2022-03-19 02:20:54,536 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:20:54,536 INFO L912 BasicCegarLoop]: 231 mSDtfsCounter, 94 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-19 02:20:54,537 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 554 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 515 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-19 02:20:54,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2022-03-19 02:20:54,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 644. [2022-03-19 02:20:54,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 639 states have (on average 1.591549295774648) internal successors, (1017), 639 states have internal predecessors, (1017), 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) [2022-03-19 02:20:54,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 1021 transitions. [2022-03-19 02:20:54,567 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 1021 transitions. Word has length 99 [2022-03-19 02:20:54,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:20:54,568 INFO L478 AbstractCegarLoop]: Abstraction has 644 states and 1021 transitions. [2022-03-19 02:20:54,568 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:20:54,568 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 1021 transitions. [2022-03-19 02:20:54,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-03-19 02:20:54,569 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:20:54,569 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:20:54,569 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-19 02:20:54,569 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:20:54,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:20:54,570 INFO L85 PathProgramCache]: Analyzing trace with hash 311489703, now seen corresponding path program 1 times [2022-03-19 02:20:54,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:20:54,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1195151868] [2022-03-19 02:20:56,922 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 02:20:56,922 INFO L85 PathProgramCache]: Analyzing trace with hash 311489703, now seen corresponding path program 2 times [2022-03-19 02:20:56,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:20:56,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494840602] [2022-03-19 02:20:56,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:20:56,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:20:56,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:20:57,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:20:57,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:20:57,042 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-19 02:20:57,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:20:57,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494840602] [2022-03-19 02:20:57,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494840602] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:20:57,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:20:57,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:20:57,043 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:20:57,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1195151868] [2022-03-19 02:20:57,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1195151868] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:20:57,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:20:57,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:20:57,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218784815] [2022-03-19 02:20:57,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:20:57,044 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:20:57,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:20:57,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:20:57,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:20:57,044 INFO L87 Difference]: Start difference. First operand 644 states and 1021 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:20:59,053 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 [] [2022-03-19 02:20:59,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:20:59,508 INFO L93 Difference]: Finished difference Result 1328 states and 2070 transitions. [2022-03-19 02:20:59,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:20:59,509 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 99 [2022-03-19 02:20:59,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:20:59,512 INFO L225 Difference]: With dead ends: 1328 [2022-03-19 02:20:59,512 INFO L226 Difference]: Without dead ends: 919 [2022-03-19 02:20:59,513 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:20:59,514 INFO L912 BasicCegarLoop]: 120 mSDtfsCounter, 115 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:20:59,514 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 326 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 406 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 02:20:59,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2022-03-19 02:20:59,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 692. [2022-03-19 02:20:59,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 687 states have (on average 1.579330422125182) internal successors, (1085), 687 states have internal predecessors, (1085), 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) [2022-03-19 02:20:59,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1089 transitions. [2022-03-19 02:20:59,554 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1089 transitions. Word has length 99 [2022-03-19 02:20:59,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:20:59,554 INFO L478 AbstractCegarLoop]: Abstraction has 692 states and 1089 transitions. [2022-03-19 02:20:59,554 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:20:59,554 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1089 transitions. [2022-03-19 02:20:59,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-03-19 02:20:59,556 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:20:59,556 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:20:59,556 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-19 02:20:59,556 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:20:59,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:20:59,556 INFO L85 PathProgramCache]: Analyzing trace with hash -2137730133, now seen corresponding path program 1 times [2022-03-19 02:20:59,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:20:59,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [796034185] [2022-03-19 02:20:59,557 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 02:20:59,557 INFO L85 PathProgramCache]: Analyzing trace with hash -2137730133, now seen corresponding path program 2 times [2022-03-19 02:20:59,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:20:59,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161339165] [2022-03-19 02:20:59,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:20:59,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:20:59,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:20:59,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:20:59,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:20:59,684 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-03-19 02:20:59,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:20:59,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161339165] [2022-03-19 02:20:59,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161339165] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:20:59,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:20:59,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:20:59,684 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:20:59,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [796034185] [2022-03-19 02:20:59,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [796034185] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:20:59,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:20:59,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:20:59,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778960861] [2022-03-19 02:20:59,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:20:59,686 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:20:59,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:20:59,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:20:59,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:20:59,687 INFO L87 Difference]: Start difference. First operand 692 states and 1089 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:21:01,695 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 [] [2022-03-19 02:21:02,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:21:02,122 INFO L93 Difference]: Finished difference Result 1565 states and 2425 transitions. [2022-03-19 02:21:02,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:21:02,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2022-03-19 02:21:02,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:21:02,125 INFO L225 Difference]: With dead ends: 1565 [2022-03-19 02:21:02,125 INFO L226 Difference]: Without dead ends: 886 [2022-03-19 02:21:02,126 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:21:02,127 INFO L912 BasicCegarLoop]: 106 mSDtfsCounter, 119 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:21:02,127 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 298 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 391 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 02:21:02,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2022-03-19 02:21:02,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 692. [2022-03-19 02:21:02,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 687 states have (on average 1.5560407569141192) internal successors, (1069), 687 states have internal predecessors, (1069), 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) [2022-03-19 02:21:02,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1073 transitions. [2022-03-19 02:21:02,167 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1073 transitions. Word has length 100 [2022-03-19 02:21:02,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:21:02,167 INFO L478 AbstractCegarLoop]: Abstraction has 692 states and 1073 transitions. [2022-03-19 02:21:02,168 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:21:02,168 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1073 transitions. [2022-03-19 02:21:02,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-03-19 02:21:02,169 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:21:02,169 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:21:02,169 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-19 02:21:02,170 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:21:02,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:21:02,170 INFO L85 PathProgramCache]: Analyzing trace with hash 428311239, now seen corresponding path program 1 times [2022-03-19 02:21:02,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:21:02,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [283321041] [2022-03-19 02:21:02,171 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 02:21:02,171 INFO L85 PathProgramCache]: Analyzing trace with hash 428311239, now seen corresponding path program 2 times [2022-03-19 02:21:02,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:21:02,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157190727] [2022-03-19 02:21:02,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:21:02,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:21:02,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:21:02,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:21:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:21:02,353 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-03-19 02:21:02,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:21:02,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157190727] [2022-03-19 02:21:02,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157190727] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:21:02,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:21:02,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:21:02,355 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:21:02,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [283321041] [2022-03-19 02:21:02,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [283321041] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:21:02,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:21:02,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:21:02,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464682210] [2022-03-19 02:21:02,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:21:02,355 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:21:02,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:21:02,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:21:02,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:21:02,356 INFO L87 Difference]: Start difference. First operand 692 states and 1073 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:21:04,364 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 [] [2022-03-19 02:21:04,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:21:04,842 INFO L93 Difference]: Finished difference Result 1581 states and 2420 transitions. [2022-03-19 02:21:04,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:21:04,843 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2022-03-19 02:21:04,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:21:04,846 INFO L225 Difference]: With dead ends: 1581 [2022-03-19 02:21:04,846 INFO L226 Difference]: Without dead ends: 902 [2022-03-19 02:21:04,847 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:21:04,847 INFO L912 BasicCegarLoop]: 207 mSDtfsCounter, 111 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:21:04,848 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 503 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 02:21:04,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2022-03-19 02:21:04,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 695. [2022-03-19 02:21:04,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 690 states have (on average 1.5347826086956522) internal successors, (1059), 690 states have internal predecessors, (1059), 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) [2022-03-19 02:21:04,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 1063 transitions. [2022-03-19 02:21:04,891 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 1063 transitions. Word has length 100 [2022-03-19 02:21:04,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:21:04,891 INFO L478 AbstractCegarLoop]: Abstraction has 695 states and 1063 transitions. [2022-03-19 02:21:04,891 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:21:04,891 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 1063 transitions. [2022-03-19 02:21:04,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-19 02:21:04,893 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:21:04,893 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:21:04,893 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-19 02:21:04,893 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:21:04,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:21:04,893 INFO L85 PathProgramCache]: Analyzing trace with hash -852029360, now seen corresponding path program 1 times [2022-03-19 02:21:04,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:21:04,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [470192200] [2022-03-19 02:21:04,894 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 02:21:04,894 INFO L85 PathProgramCache]: Analyzing trace with hash -852029360, now seen corresponding path program 2 times [2022-03-19 02:21:04,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:21:04,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159225490] [2022-03-19 02:21:04,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:21:04,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:21:04,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:21:05,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:21:05,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:21:05,005 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-03-19 02:21:05,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:21:05,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159225490] [2022-03-19 02:21:05,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159225490] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:21:05,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:21:05,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:21:05,005 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:21:05,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [470192200] [2022-03-19 02:21:05,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [470192200] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:21:05,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:21:05,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:21:05,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679896675] [2022-03-19 02:21:05,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:21:05,006 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:21:05,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:21:05,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:21:05,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:21:05,007 INFO L87 Difference]: Start difference. First operand 695 states and 1063 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:21:07,018 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 [] [2022-03-19 02:21:07,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:21:07,450 INFO L93 Difference]: Finished difference Result 1566 states and 2367 transitions. [2022-03-19 02:21:07,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:21:07,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 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 101 [2022-03-19 02:21:07,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:21:07,453 INFO L225 Difference]: With dead ends: 1566 [2022-03-19 02:21:07,453 INFO L226 Difference]: Without dead ends: 887 [2022-03-19 02:21:07,455 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:21:07,455 INFO L912 BasicCegarLoop]: 117 mSDtfsCounter, 117 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:21:07,455 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 320 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 403 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 02:21:07,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2022-03-19 02:21:07,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 695. [2022-03-19 02:21:07,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 690 states have (on average 1.5115942028985507) internal successors, (1043), 690 states have internal predecessors, (1043), 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) [2022-03-19 02:21:07,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 1047 transitions. [2022-03-19 02:21:07,499 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 1047 transitions. Word has length 101 [2022-03-19 02:21:07,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:21:07,520 INFO L478 AbstractCegarLoop]: Abstraction has 695 states and 1047 transitions. [2022-03-19 02:21:07,521 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:21:07,521 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 1047 transitions. [2022-03-19 02:21:07,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-19 02:21:07,522 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:21:07,522 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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] [2022-03-19 02:21:07,522 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-19 02:21:07,522 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:21:07,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:21:07,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1276111053, now seen corresponding path program 1 times [2022-03-19 02:21:07,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:21:07,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1802013162] [2022-03-19 02:21:09,770 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 02:21:09,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1276111053, now seen corresponding path program 2 times [2022-03-19 02:21:09,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:21:09,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959334174] [2022-03-19 02:21:09,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:21:09,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:21:09,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:21:09,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:21:09,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:21:09,868 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-03-19 02:21:09,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:21:09,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959334174] [2022-03-19 02:21:09,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959334174] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:21:09,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:21:09,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:21:09,869 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:21:09,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1802013162] [2022-03-19 02:21:09,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1802013162] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:21:09,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:21:09,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:21:09,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729158455] [2022-03-19 02:21:09,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:21:09,869 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:21:09,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:21:09,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:21:09,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:21:09,870 INFO L87 Difference]: Start difference. First operand 695 states and 1047 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:21:11,879 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 [] [2022-03-19 02:21:12,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:21:12,391 INFO L93 Difference]: Finished difference Result 1246 states and 1868 transitions. [2022-03-19 02:21:12,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:21:12,393 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 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 101 [2022-03-19 02:21:12,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:21:12,395 INFO L225 Difference]: With dead ends: 1246 [2022-03-19 02:21:12,395 INFO L226 Difference]: Without dead ends: 805 [2022-03-19 02:21:12,397 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:21:12,397 INFO L912 BasicCegarLoop]: 225 mSDtfsCounter, 82 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:21:12,397 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 542 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 502 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 02:21:12,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2022-03-19 02:21:12,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 695. [2022-03-19 02:21:12,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 690 states have (on average 1.508695652173913) internal successors, (1041), 690 states have internal predecessors, (1041), 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) [2022-03-19 02:21:12,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 1045 transitions. [2022-03-19 02:21:12,442 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 1045 transitions. Word has length 101 [2022-03-19 02:21:12,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:21:12,442 INFO L478 AbstractCegarLoop]: Abstraction has 695 states and 1045 transitions. [2022-03-19 02:21:12,442 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:21:12,442 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 1045 transitions. [2022-03-19 02:21:12,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-19 02:21:12,444 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:21:12,444 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:21:12,444 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-19 02:21:12,444 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:21:12,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:21:12,444 INFO L85 PathProgramCache]: Analyzing trace with hash 725640173, now seen corresponding path program 1 times [2022-03-19 02:21:12,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:21:12,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1650127203] [2022-03-19 02:21:12,445 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 02:21:12,445 INFO L85 PathProgramCache]: Analyzing trace with hash 725640173, now seen corresponding path program 2 times [2022-03-19 02:21:12,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:21:12,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813519395] [2022-03-19 02:21:12,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:21:12,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:21:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:21:12,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:21:12,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:21:12,540 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-19 02:21:12,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:21:12,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813519395] [2022-03-19 02:21:12,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813519395] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:21:12,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:21:12,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:21:12,541 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:21:12,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1650127203] [2022-03-19 02:21:12,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1650127203] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:21:12,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:21:12,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:21:12,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221336146] [2022-03-19 02:21:12,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:21:12,541 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:21:12,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:21:12,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:21:12,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:21:12,542 INFO L87 Difference]: Start difference. First operand 695 states and 1045 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:21:14,553 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 [] [2022-03-19 02:21:15,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:21:15,028 INFO L93 Difference]: Finished difference Result 1484 states and 2223 transitions. [2022-03-19 02:21:15,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:21:15,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 101 [2022-03-19 02:21:15,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:21:15,031 INFO L225 Difference]: With dead ends: 1484 [2022-03-19 02:21:15,031 INFO L226 Difference]: Without dead ends: 805 [2022-03-19 02:21:15,033 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:21:15,033 INFO L912 BasicCegarLoop]: 224 mSDtfsCounter, 62 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:21:15,033 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 540 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 501 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 02:21:15,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2022-03-19 02:21:15,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 721. [2022-03-19 02:21:15,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 716 states have (on average 1.5125698324022345) internal successors, (1083), 716 states have internal predecessors, (1083), 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) [2022-03-19 02:21:15,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 1087 transitions. [2022-03-19 02:21:15,081 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 1087 transitions. Word has length 101 [2022-03-19 02:21:15,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:21:15,081 INFO L478 AbstractCegarLoop]: Abstraction has 721 states and 1087 transitions. [2022-03-19 02:21:15,082 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:21:15,082 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 1087 transitions. [2022-03-19 02:21:15,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-19 02:21:15,083 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:21:15,083 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:21:15,083 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-19 02:21:15,083 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:21:15,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:21:15,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1316661163, now seen corresponding path program 1 times [2022-03-19 02:21:15,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:21:15,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1225246352] [2022-03-19 02:21:15,084 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 02:21:15,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1316661163, now seen corresponding path program 2 times [2022-03-19 02:21:15,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:21:15,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127499034] [2022-03-19 02:21:15,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:21:15,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:21:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:21:15,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:21:15,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:21:15,194 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-19 02:21:15,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:21:15,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127499034] [2022-03-19 02:21:15,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127499034] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:21:15,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:21:15,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:21:15,195 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:21:15,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1225246352] [2022-03-19 02:21:15,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1225246352] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:21:15,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:21:15,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:21:15,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588845987] [2022-03-19 02:21:15,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:21:15,196 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:21:15,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:21:15,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:21:15,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:21:15,196 INFO L87 Difference]: Start difference. First operand 721 states and 1087 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:21:17,204 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 [] [2022-03-19 02:21:17,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:21:17,634 INFO L93 Difference]: Finished difference Result 1618 states and 2415 transitions. [2022-03-19 02:21:17,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:21:17,635 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 101 [2022-03-19 02:21:17,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:21:17,644 INFO L225 Difference]: With dead ends: 1618 [2022-03-19 02:21:17,644 INFO L226 Difference]: Without dead ends: 913 [2022-03-19 02:21:17,645 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:21:17,647 INFO L912 BasicCegarLoop]: 106 mSDtfsCounter, 91 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:21:17,647 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 298 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 391 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 02:21:17,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2022-03-19 02:21:17,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 754. [2022-03-19 02:21:17,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 749 states have (on average 1.5300400534045393) internal successors, (1146), 749 states have internal predecessors, (1146), 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) [2022-03-19 02:21:17,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1150 transitions. [2022-03-19 02:21:17,720 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1150 transitions. Word has length 101 [2022-03-19 02:21:17,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:21:17,720 INFO L478 AbstractCegarLoop]: Abstraction has 754 states and 1150 transitions. [2022-03-19 02:21:17,720 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:21:17,720 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1150 transitions. [2022-03-19 02:21:17,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-19 02:21:17,722 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:21:17,722 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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] [2022-03-19 02:21:17,722 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-19 02:21:17,722 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:21:17,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:21:17,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1057281585, now seen corresponding path program 1 times [2022-03-19 02:21:17,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:21:17,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1662684433] [2022-03-19 02:21:19,961 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 02:21:19,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1057281585, now seen corresponding path program 2 times [2022-03-19 02:21:19,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:21:19,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397336255] [2022-03-19 02:21:19,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:21:19,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:21:20,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:21:20,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:21:20,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:21:20,078 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-03-19 02:21:20,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:21:20,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397336255] [2022-03-19 02:21:20,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397336255] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:21:20,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:21:20,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:21:20,078 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:21:20,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1662684433] [2022-03-19 02:21:20,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1662684433] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:21:20,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:21:20,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:21:20,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268954149] [2022-03-19 02:21:20,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:21:20,079 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:21:20,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:21:20,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:21:20,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:21:20,080 INFO L87 Difference]: Start difference. First operand 754 states and 1150 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:21:22,089 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 [] [2022-03-19 02:21:22,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:21:22,538 INFO L93 Difference]: Finished difference Result 1447 states and 2183 transitions. [2022-03-19 02:21:22,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:21:22,539 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 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 101 [2022-03-19 02:21:22,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:21:22,542 INFO L225 Difference]: With dead ends: 1447 [2022-03-19 02:21:22,542 INFO L226 Difference]: Without dead ends: 971 [2022-03-19 02:21:22,543 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:21:22,543 INFO L912 BasicCegarLoop]: 122 mSDtfsCounter, 108 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 39 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:21:22,544 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 330 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 402 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 02:21:22,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2022-03-19 02:21:22,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 757. [2022-03-19 02:21:22,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 752 states have (on average 1.5172872340425532) internal successors, (1141), 752 states have internal predecessors, (1141), 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) [2022-03-19 02:21:22,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 1145 transitions. [2022-03-19 02:21:22,602 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 1145 transitions. Word has length 101 [2022-03-19 02:21:22,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:21:22,602 INFO L478 AbstractCegarLoop]: Abstraction has 757 states and 1145 transitions. [2022-03-19 02:21:22,602 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:21:22,602 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 1145 transitions. [2022-03-19 02:21:22,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-03-19 02:21:22,603 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:21:22,604 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 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] [2022-03-19 02:21:22,604 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-19 02:21:22,604 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:21:22,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:21:22,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1200804144, now seen corresponding path program 1 times [2022-03-19 02:21:22,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:21:22,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [615553019] [2022-03-19 02:21:46,769 WARN L232 SmtUtils]: Spent 18.63s on a formula simplification that was a NOOP. DAG size: 240 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 02:21:55,479 WARN L232 SmtUtils]: Spent 6.14s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 02:21:56,964 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 02:21:56,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1200804144, now seen corresponding path program 2 times [2022-03-19 02:21:56,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:21:56,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082362054] [2022-03-19 02:21:56,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:21:56,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:21:57,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:21:57,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:21:57,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:21:57,068 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-03-19 02:21:57,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:21:57,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082362054] [2022-03-19 02:21:57,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082362054] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:21:57,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:21:57,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 02:21:57,069 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:21:57,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [615553019] [2022-03-19 02:21:57,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [615553019] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:21:57,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:21:57,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 02:21:57,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513234218] [2022-03-19 02:21:57,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:21:57,069 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 02:21:57,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:21:57,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 02:21:57,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:21:57,070 INFO L87 Difference]: Start difference. First operand 757 states and 1145 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:21:59,080 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 [] [2022-03-19 02:21:59,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:21:59,487 INFO L93 Difference]: Finished difference Result 1499 states and 2277 transitions. [2022-03-19 02:21:59,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 02:21:59,487 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 116 [2022-03-19 02:21:59,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:21:59,490 INFO L225 Difference]: With dead ends: 1499 [2022-03-19 02:21:59,490 INFO L226 Difference]: Without dead ends: 1023 [2022-03-19 02:21:59,490 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:21:59,491 INFO L912 BasicCegarLoop]: 319 mSDtfsCounter, 121 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 02:21:59,491 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 483 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 343 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 02:21:59,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2022-03-19 02:21:59,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 1023. [2022-03-19 02:21:59,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1023 states, 1018 states have (on average 1.5157170923379175) internal successors, (1543), 1018 states have internal predecessors, (1543), 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) [2022-03-19 02:21:59,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1547 transitions. [2022-03-19 02:21:59,556 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1547 transitions. Word has length 116 [2022-03-19 02:21:59,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:21:59,558 INFO L478 AbstractCegarLoop]: Abstraction has 1023 states and 1547 transitions. [2022-03-19 02:21:59,558 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:21:59,558 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1547 transitions. [2022-03-19 02:21:59,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-03-19 02:21:59,559 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:21:59,560 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:21:59,560 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-19 02:21:59,560 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:21:59,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:21:59,560 INFO L85 PathProgramCache]: Analyzing trace with hash -816970310, now seen corresponding path program 1 times [2022-03-19 02:21:59,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:21:59,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1494415012] [2022-03-19 02:21:59,562 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 02:21:59,562 INFO L85 PathProgramCache]: Analyzing trace with hash -816970310, now seen corresponding path program 2 times [2022-03-19 02:21:59,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:21:59,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503730536] [2022-03-19 02:21:59,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:21:59,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:21:59,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:21:59,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:21:59,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:21:59,669 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-19 02:21:59,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:21:59,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503730536] [2022-03-19 02:21:59,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503730536] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:21:59,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:21:59,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 02:21:59,670 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:21:59,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1494415012] [2022-03-19 02:21:59,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1494415012] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:21:59,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:21:59,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 02:21:59,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069180959] [2022-03-19 02:21:59,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:21:59,670 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 02:21:59,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:21:59,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 02:21:59,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:21:59,671 INFO L87 Difference]: Start difference. First operand 1023 states and 1547 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:22:01,679 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 [] [2022-03-19 02:22:02,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:22:02,074 INFO L93 Difference]: Finished difference Result 2031 states and 3079 transitions. [2022-03-19 02:22:02,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 02:22:02,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2022-03-19 02:22:02,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:22:02,078 INFO L225 Difference]: With dead ends: 2031 [2022-03-19 02:22:02,078 INFO L226 Difference]: Without dead ends: 1289 [2022-03-19 02:22:02,079 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:22:02,079 INFO L912 BasicCegarLoop]: 318 mSDtfsCounter, 127 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 02:22:02,079 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 482 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 341 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 02:22:02,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2022-03-19 02:22:02,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1287. [2022-03-19 02:22:02,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1287 states, 1282 states have (on average 1.5148205928237128) internal successors, (1942), 1282 states have internal predecessors, (1942), 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) [2022-03-19 02:22:02,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 1287 states and 1946 transitions. [2022-03-19 02:22:02,155 INFO L78 Accepts]: Start accepts. Automaton has 1287 states and 1946 transitions. Word has length 119 [2022-03-19 02:22:02,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:22:02,156 INFO L478 AbstractCegarLoop]: Abstraction has 1287 states and 1946 transitions. [2022-03-19 02:22:02,156 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:22:02,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1287 states and 1946 transitions. [2022-03-19 02:22:02,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-03-19 02:22:02,157 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:22:02,157 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:22:02,158 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-19 02:22:02,158 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:22:02,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:22:02,158 INFO L85 PathProgramCache]: Analyzing trace with hash -676421700, now seen corresponding path program 1 times [2022-03-19 02:22:02,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:22:02,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1591168436] [2022-03-19 02:22:02,158 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 02:22:02,159 INFO L85 PathProgramCache]: Analyzing trace with hash -676421700, now seen corresponding path program 2 times [2022-03-19 02:22:02,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:22:02,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061236592] [2022-03-19 02:22:02,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:22:02,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:22:02,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:22:02,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:22:02,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:22:02,266 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-19 02:22:02,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:22:02,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061236592] [2022-03-19 02:22:02,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061236592] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:22:02,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:22:02,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 02:22:02,268 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:22:02,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1591168436] [2022-03-19 02:22:02,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1591168436] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:22:02,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:22:02,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 02:22:02,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393608072] [2022-03-19 02:22:02,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:22:02,268 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 02:22:02,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:22:02,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 02:22:02,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:22:02,269 INFO L87 Difference]: Start difference. First operand 1287 states and 1946 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:22:04,283 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 [] [2022-03-19 02:22:04,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:22:04,675 INFO L93 Difference]: Finished difference Result 2267 states and 3431 transitions. [2022-03-19 02:22:04,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 02:22:04,676 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2022-03-19 02:22:04,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:22:04,679 INFO L225 Difference]: With dead ends: 2267 [2022-03-19 02:22:04,679 INFO L226 Difference]: Without dead ends: 1261 [2022-03-19 02:22:04,680 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:22:04,681 INFO L912 BasicCegarLoop]: 317 mSDtfsCounter, 130 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 02:22:04,681 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 481 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 340 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 02:22:04,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1261 states. [2022-03-19 02:22:04,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1261 to 1261. [2022-03-19 02:22:04,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1261 states, 1256 states have (on average 1.5095541401273886) internal successors, (1896), 1256 states have internal predecessors, (1896), 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) [2022-03-19 02:22:04,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1261 states to 1261 states and 1900 transitions. [2022-03-19 02:22:04,768 INFO L78 Accepts]: Start accepts. Automaton has 1261 states and 1900 transitions. Word has length 119 [2022-03-19 02:22:04,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:22:04,768 INFO L478 AbstractCegarLoop]: Abstraction has 1261 states and 1900 transitions. [2022-03-19 02:22:04,768 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:22:04,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1261 states and 1900 transitions. [2022-03-19 02:22:04,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-19 02:22:04,770 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:22:04,770 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:22:04,771 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-19 02:22:04,771 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:22:04,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:22:04,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1107867599, now seen corresponding path program 1 times [2022-03-19 02:22:04,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:22:04,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [863226271] [2022-03-19 02:22:04,771 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 02:22:04,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1107867599, now seen corresponding path program 2 times [2022-03-19 02:22:04,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:22:04,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503359834] [2022-03-19 02:22:04,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:22:04,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:22:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:22:04,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:22:04,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:22:04,879 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-03-19 02:22:04,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:22:04,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503359834] [2022-03-19 02:22:04,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503359834] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:22:04,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:22:04,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:22:04,880 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:22:04,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [863226271] [2022-03-19 02:22:04,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [863226271] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:22:04,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:22:04,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:22:04,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147058133] [2022-03-19 02:22:04,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:22:04,881 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:22:04,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:22:04,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:22:04,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:22:04,881 INFO L87 Difference]: Start difference. First operand 1261 states and 1900 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:22:06,899 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 [] [2022-03-19 02:22:07,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:22:07,350 INFO L93 Difference]: Finished difference Result 2764 states and 4089 transitions. [2022-03-19 02:22:07,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:22:07,350 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 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 143 [2022-03-19 02:22:07,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:22:07,354 INFO L225 Difference]: With dead ends: 2764 [2022-03-19 02:22:07,355 INFO L226 Difference]: Without dead ends: 1519 [2022-03-19 02:22:07,356 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:22:07,357 INFO L912 BasicCegarLoop]: 105 mSDtfsCounter, 107 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 02:22:07,357 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 295 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 392 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 02:22:07,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2022-03-19 02:22:07,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1261. [2022-03-19 02:22:07,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1261 states, 1256 states have (on average 1.4952229299363058) internal successors, (1878), 1256 states have internal predecessors, (1878), 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) [2022-03-19 02:22:07,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1261 states to 1261 states and 1882 transitions. [2022-03-19 02:22:07,454 INFO L78 Accepts]: Start accepts. Automaton has 1261 states and 1882 transitions. Word has length 143 [2022-03-19 02:22:07,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:22:07,454 INFO L478 AbstractCegarLoop]: Abstraction has 1261 states and 1882 transitions. [2022-03-19 02:22:07,454 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:22:07,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1261 states and 1882 transitions. [2022-03-19 02:22:07,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-19 02:22:07,456 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:22:07,457 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:22:07,457 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-19 02:22:07,457 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:22:07,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:22:07,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1878601165, now seen corresponding path program 1 times [2022-03-19 02:22:07,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:22:07,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [107211114] [2022-03-19 02:22:07,458 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 02:22:07,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1878601165, now seen corresponding path program 2 times [2022-03-19 02:22:07,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:22:07,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002945364] [2022-03-19 02:22:07,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:22:07,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:22:08,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-19 02:22:08,092 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-19 02:22:08,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-19 02:22:08,359 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-19 02:22:08,359 INFO L130 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found a feasible trace [2022-03-19 02:22:08,360 INFO L614 BasicCegarLoop]: Counterexample is feasible [2022-03-19 02:22:08,365 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-19 02:22:08,367 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-19 02:22:08,369 INFO L718 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2] [2022-03-19 02:22:08,372 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-19 02:22:08,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.03 02:22:08 BoogieIcfgContainer [2022-03-19 02:22:08,413 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-19 02:22:08,414 INFO L158 Benchmark]: Toolchain (without parser) took 110813.85ms. Allocated memory was 198.2MB in the beginning and 286.3MB in the end (delta: 88.1MB). Free memory was 144.2MB in the beginning and 90.1MB in the end (delta: 54.1MB). Peak memory consumption was 143.1MB. Max. memory is 8.0GB. [2022-03-19 02:22:08,414 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 198.2MB. Free memory was 162.6MB in the beginning and 162.4MB in the end (delta: 132.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-19 02:22:08,414 INFO L158 Benchmark]: CACSL2BoogieTranslator took 496.07ms. Allocated memory was 198.2MB in the beginning and 238.0MB in the end (delta: 39.8MB). Free memory was 144.0MB in the beginning and 195.4MB in the end (delta: -51.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-19 02:22:08,414 INFO L158 Benchmark]: Boogie Preprocessor took 85.98ms. Allocated memory is still 238.0MB. Free memory was 195.4MB in the beginning and 188.1MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-03-19 02:22:08,414 INFO L158 Benchmark]: RCFGBuilder took 1343.26ms. Allocated memory is still 238.0MB. Free memory was 188.1MB in the beginning and 204.3MB in the end (delta: -16.2MB). Peak memory consumption was 84.0MB. Max. memory is 8.0GB. [2022-03-19 02:22:08,415 INFO L158 Benchmark]: TraceAbstraction took 108884.74ms. Allocated memory was 238.0MB in the beginning and 286.3MB in the end (delta: 48.2MB). Free memory was 203.7MB in the beginning and 90.1MB in the end (delta: 113.6MB). Peak memory consumption was 161.8MB. Max. memory is 8.0GB. [2022-03-19 02:22:08,419 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 198.2MB. Free memory was 162.6MB in the beginning and 162.4MB in the end (delta: 132.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 496.07ms. Allocated memory was 198.2MB in the beginning and 238.0MB in the end (delta: 39.8MB). Free memory was 144.0MB in the beginning and 195.4MB in the end (delta: -51.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 85.98ms. Allocated memory is still 238.0MB. Free memory was 195.4MB in the beginning and 188.1MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1343.26ms. Allocated memory is still 238.0MB. Free memory was 188.1MB in the beginning and 204.3MB in the end (delta: -16.2MB). Peak memory consumption was 84.0MB. Max. memory is 8.0GB. * TraceAbstraction took 108884.74ms. Allocated memory was 238.0MB in the beginning and 286.3MB in the end (delta: 48.2MB). Free memory was 203.7MB in the beginning and 90.1MB in the end (delta: 113.6MB). Peak memory consumption was 161.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1658]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 1343. Possible FailurePath: [L1042] static int init = 1; [L1043] static SSL_METHOD SSLv3_client_data ; [L1065] SSL *s ; [L1069] s = malloc (sizeof (SSL)) [L1070] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1071] EXPR s->s3 [L1071] s->s3->flags = __VERIFIER_nondet_long() [L1072] EXPR s->s3 [L1072] (s->s3)->tmp.cert_req = __VERIFIER_nondet_int() [L1073] EXPR s->s3 [L1073] (s->s3)->tmp.new_cipher = malloc(sizeof(struct ssl_cipher_st)) [L1074] EXPR s->s3 [L1074] EXPR (s->s3)->tmp.new_cipher [L1074] ((s->s3)->tmp.new_cipher)->algorithms = __VERIFIER_nondet_ulong() [L1075] EXPR s->s3 [L1075] s->s3->tmp.next_state = __VERIFIER_nondet_int() [L1076] s->bbio = (BIO *) __VERIFIER_nondet_ulong() [L1077] s->wbio = (BIO *) __VERIFIER_nondet_ulong() [L1078] s->ctx = malloc(sizeof(SSL_CTX)) [L1079] EXPR s->ctx [L1079] (s->ctx)->info_callback = (void (*)()) __VERIFIER_nondet_ulong() [L1080] s->state = 12292 [L1081] s->version = __VERIFIER_nondet_int() [L1082] s->init_buf = (BUF_MEM *)__VERIFIER_nondet_ulong() [L1083] s->info_callback = (void (*)()) __VERIFIER_nondet_ulong() [L1084] CALL ssl3_connect(s) [L1090] BUF_MEM *buf = (BUF_MEM *)__VERIFIER_nondet_ulong(); [L1091] unsigned long tmp ; [L1092] unsigned long l ; [L1093] long num1 ; [L1094] void (*cb)() ; [L1095] int ret ; [L1096] int new_state ; [L1097] int state ; [L1098] int skip ; [L1099] int *tmp___0 ; [L1100] int tmp___1 = __VERIFIER_nondet_int(); [L1101] int tmp___2 = __VERIFIER_nondet_int(); [L1102] int tmp___3 ; [L1103] int tmp___4 ; [L1104] int tmp___5 ; [L1105] int tmp___6 ; [L1106] int tmp___7 ; [L1107] int tmp___8 ; [L1108] long tmp___9 ; [L1110] int blastFlag ; [L1113] blastFlag = 0 [L1114] s->state = 12292 [L1115] s->hit = __VERIFIER_nondet_int() [L1117] tmp = __VERIFIER_nondet_int() [L1118] cb = (void (*)())((void *)0) [L1119] ret = -1 [L1120] skip = 0 [L1121] tmp___0 = (int*)malloc(sizeof(int)) [L1122] *tmp___0 = 0 [L1123] EXPR s->info_callback [L1123] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1124] EXPR s->info_callback [L1124] cb = s->info_callback [L1132] EXPR s->in_handshake [L1132] s->in_handshake += 1 [L1133] COND FALSE !(tmp___1 & 12288) [L1143] COND TRUE 1 [L1145] EXPR s->state [L1145] state = s->state [L1146] EXPR s->state [L1146] COND TRUE s->state == 12292 [L1249] s->new_session = 1 [L1250] s->state = 4096 [L1251] EXPR s->ctx [L1251] EXPR (s->ctx)->stats.sess_connect_renegotiate [L1251] (s->ctx)->stats.sess_connect_renegotiate += 1 [L1256] s->server = 0 [L1257] COND TRUE (unsigned long )cb != (unsigned long )((void *)0) [L1262] EXPR s->version [L1262] COND FALSE !((s->version & 65280) != 768) [L1268] s->type = 4096 [L1269] EXPR s->init_buf [L1269] COND FALSE !((unsigned long )s->init_buf == (unsigned long )((void *)0)) [L1281] tmp___4 = __VERIFIER_nondet_int() [L1282] COND FALSE !(! tmp___4) [L1288] tmp___5 = __VERIFIER_nondet_int() [L1289] COND FALSE !(! tmp___5) [L1295] s->state = 4368 [L1296] EXPR s->ctx [L1296] EXPR (s->ctx)->stats.sess_connect [L1296] (s->ctx)->stats.sess_connect += 1 [L1297] s->init_num = 0 [L1617] EXPR s->s3 [L1617] EXPR (s->s3)->tmp.reuse_message [L1617] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1646] skip = 0 [L1143] COND TRUE 1 [L1145] EXPR s->state [L1145] state = s->state [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 12292) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 16384) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4096) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 20480) [L1158] EXPR s->state [L1158] COND FALSE !(s->state == 4099) [L1161] EXPR s->state [L1161] COND TRUE s->state == 4368 [L1301] s->shutdown = 0 [L1302] ret = __VERIFIER_nondet_int() [L1303] COND TRUE blastFlag == 0 [L1304] blastFlag = 1 [L1308] COND FALSE !(ret <= 0) [L1313] s->state = 4384 [L1314] s->init_num = 0 [L1315] EXPR s->bbio [L1315] EXPR s->wbio [L1315] COND TRUE (unsigned long )s->bbio != (unsigned long )s->wbio [L1617] EXPR s->s3 [L1617] EXPR (s->s3)->tmp.reuse_message [L1617] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1646] skip = 0 [L1143] COND TRUE 1 [L1145] EXPR s->state [L1145] state = s->state [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 12292) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 16384) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4096) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 20480) [L1158] EXPR s->state [L1158] COND FALSE !(s->state == 4099) [L1161] EXPR s->state [L1161] COND FALSE !(s->state == 4368) [L1164] EXPR s->state [L1164] COND FALSE !(s->state == 4369) [L1167] EXPR s->state [L1167] COND TRUE s->state == 4384 [L1323] ret = __VERIFIER_nondet_int() [L1324] COND TRUE blastFlag == 1 [L1325] blastFlag = 2 [L1329] COND FALSE !(ret <= 0) [L1334] s->hit [L1334] COND FALSE !(s->hit) [L1337] s->state = 4400 [L1339] s->init_num = 0 [L1617] EXPR s->s3 [L1617] EXPR (s->s3)->tmp.reuse_message [L1617] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1646] skip = 0 [L1143] COND TRUE 1 [L1145] EXPR s->state [L1145] state = s->state [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 12292) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 16384) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4096) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 20480) [L1158] EXPR s->state [L1158] COND FALSE !(s->state == 4099) [L1161] EXPR s->state [L1161] COND FALSE !(s->state == 4368) [L1164] EXPR s->state [L1164] COND FALSE !(s->state == 4369) [L1167] EXPR s->state [L1167] COND FALSE !(s->state == 4384) [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 4385) [L1173] EXPR s->state [L1173] COND TRUE s->state == 4400 [L1343] EXPR s->s3 [L1343] EXPR (s->s3)->tmp.new_cipher [L1343] EXPR ((s->s3)->tmp.new_cipher)->algorithms [L1343] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1346] ret = __VERIFIER_nondet_int() [L1347] COND TRUE blastFlag == 2 [L1348] blastFlag = 3 [L1352] COND FALSE !(ret <= 0) [L1358] s->state = 4416 [L1359] s->init_num = 0 [L1617] EXPR s->s3 [L1617] EXPR (s->s3)->tmp.reuse_message [L1617] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1646] skip = 0 [L1143] COND TRUE 1 [L1145] EXPR s->state [L1145] state = s->state [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 12292) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 16384) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4096) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 20480) [L1158] EXPR s->state [L1158] COND FALSE !(s->state == 4099) [L1161] EXPR s->state [L1161] COND FALSE !(s->state == 4368) [L1164] EXPR s->state [L1164] COND FALSE !(s->state == 4369) [L1167] EXPR s->state [L1167] COND FALSE !(s->state == 4384) [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 4385) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 4400) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 4401) [L1179] EXPR s->state [L1179] COND TRUE s->state == 4416 [L1363] ret = __VERIFIER_nondet_int() [L1364] COND TRUE blastFlag == 3 [L1365] blastFlag = 4 [L1369] COND FALSE !(ret <= 0) [L1374] s->state = 4432 [L1375] s->init_num = 0 [L1376] tmp___6 = __VERIFIER_nondet_int() [L1377] COND FALSE !(! tmp___6) [L1617] EXPR s->s3 [L1617] EXPR (s->s3)->tmp.reuse_message [L1617] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1646] skip = 0 [L1143] COND TRUE 1 [L1145] EXPR s->state [L1145] state = s->state [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 12292) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 16384) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4096) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 20480) [L1158] EXPR s->state [L1158] COND FALSE !(s->state == 4099) [L1161] EXPR s->state [L1161] COND FALSE !(s->state == 4368) [L1164] EXPR s->state [L1164] COND FALSE !(s->state == 4369) [L1167] EXPR s->state [L1167] COND FALSE !(s->state == 4384) [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 4385) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 4400) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 4401) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 4416) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 4417) [L1185] EXPR s->state [L1185] COND TRUE s->state == 4432 [L1386] ret = __VERIFIER_nondet_int() [L1387] COND FALSE !(blastFlag == 5) [L1392] COND FALSE !(ret <= 0) [L1397] s->state = 4448 [L1398] s->init_num = 0 [L1617] EXPR s->s3 [L1617] EXPR (s->s3)->tmp.reuse_message [L1617] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1646] skip = 0 [L1143] COND TRUE 1 [L1145] EXPR s->state [L1145] state = s->state [L1146] EXPR s->state [L1146] COND FALSE !(s->state == 12292) [L1149] EXPR s->state [L1149] COND FALSE !(s->state == 16384) [L1152] EXPR s->state [L1152] COND FALSE !(s->state == 4096) [L1155] EXPR s->state [L1155] COND FALSE !(s->state == 20480) [L1158] EXPR s->state [L1158] COND FALSE !(s->state == 4099) [L1161] EXPR s->state [L1161] COND FALSE !(s->state == 4368) [L1164] EXPR s->state [L1164] COND FALSE !(s->state == 4369) [L1167] EXPR s->state [L1167] COND FALSE !(s->state == 4384) [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 4385) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 4400) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 4401) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 4416) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 4417) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 4432) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 4433) [L1191] EXPR s->state [L1191] COND TRUE s->state == 4448 [L1402] ret = __VERIFIER_nondet_int() [L1403] COND TRUE blastFlag == 4 [L1658] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 171 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 108.8s, OverallIterations: 26, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 62.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 25 mSolverCounterUnknown, 2598 SdHoareTripleChecker+Valid, 60.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2598 mSDsluCounter, 10848 SdHoareTripleChecker+Invalid, 58.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6002 mSDsCounter, 573 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10589 IncrementalHoareTripleChecker+Invalid, 11187 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 573 mSolverCounterUnsat, 4846 mSDtfsCounter, 10589 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 185 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1287occurred in iteration=23, InterpolantAutomatonStates: 120, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 25 MinimizatonAttempts, 3387 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-03-19 02:22:08,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...