/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-b030c9e [2022-03-20 12:46:10,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 12:46:10,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 12:46:10,844 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 12:46:10,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 12:46:10,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 12:46:10,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 12:46:10,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 12:46:10,851 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 12:46:10,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 12:46:10,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 12:46:10,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 12:46:10,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 12:46:10,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 12:46:10,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 12:46:10,861 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 12:46:10,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 12:46:10,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 12:46:10,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 12:46:10,867 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 12:46:10,868 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 12:46:10,869 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 12:46:10,869 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 12:46:10,870 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 12:46:10,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 12:46:10,875 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-20 12:46:10,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 12:46:10,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 12:46:10,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 12:46:10,882 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-03-20 12:46:10,888 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 12:46:10,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 12:46:10,889 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 12:46:10,889 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 12:46:10,889 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 12:46:10,889 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 12:46:10,889 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 12:46:10,890 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 12:46:10,890 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 12:46:10,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 12:46:10,890 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 12:46:10,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 12:46:10,890 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 12:46:10,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 12:46:10,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 12:46:10,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 12:46:10,891 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 12:46:10,891 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 12:46:10,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 12:46:10,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 12:46:10,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-20 12:46:10,891 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-20 12:46:10,891 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-20 12:46:10,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 12:46:10,891 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-03-20 12:46:10,891 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 12:46:11,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 12:46:11,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 12:46:11,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 12:46:11,114 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 12:46:11,114 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 12:46:11,115 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/s3.i [2022-03-20 12:46:11,158 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c09c722d/182f07c3c06a4afd82a4bc6f9c48e365/FLAG1893bb0e5 [2022-03-20 12:46:11,550 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 12:46:11,550 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/s3.i [2022-03-20 12:46:11,563 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c09c722d/182f07c3c06a4afd82a4bc6f9c48e365/FLAG1893bb0e5 [2022-03-20 12:46:11,926 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c09c722d/182f07c3c06a4afd82a4bc6f9c48e365 [2022-03-20 12:46:11,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 12:46:11,928 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 12:46:11,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 12:46:11,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 12:46:11,936 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 12:46:11,937 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 12:46:11" (1/1) ... [2022-03-20 12:46:11,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c259581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:46:11, skipping insertion in model container [2022-03-20 12:46:11,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 12:46:11" (1/1) ... [2022-03-20 12:46:11,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 12:46:12,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 12:46:12,253 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] [2022-03-20 12:46:12,258 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 12:46:12,266 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 12:46:12,346 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] [2022-03-20 12:46:12,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 12:46:12,368 INFO L208 MainTranslator]: Completed translation [2022-03-20 12:46:12,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:46:12 WrapperNode [2022-03-20 12:46:12,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 12:46:12,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 12:46:12,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 12:46:12,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 12:46:12,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:46:12" (1/1) ... [2022-03-20 12:46:12,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:46:12" (1/1) ... [2022-03-20 12:46:12,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:46:12" (1/1) ... [2022-03-20 12:46:12,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:46:12" (1/1) ... [2022-03-20 12:46:12,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:46:12" (1/1) ... [2022-03-20 12:46:12,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:46:12" (1/1) ... [2022-03-20 12:46:12,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:46:12" (1/1) ... [2022-03-20 12:46:12,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 12:46:12,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 12:46:12,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 12:46:12,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 12:46:12,466 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:46:12" (1/1) ... [2022-03-20 12:46:12,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 12:46:12,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 12:46:12,499 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-20 12:46:12,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-20 12:46:12,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 12:46:12,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 12:46:12,533 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 12:46:12,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2022-03-20 12:46:12,534 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2022-03-20 12:46:12,534 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 12:46:12,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-03-20 12:46:12,534 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 12:46:12,534 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 12:46:12,534 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 12:46:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 12:46:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 12:46:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 12:46:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 12:46:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 12:46:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 12:46:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 12:46:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 12:46:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 12:46:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2022-03-20 12:46:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 12:46:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-03-20 12:46:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2022-03-20 12:46:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 12:46:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 12:46:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 12:46:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 12:46:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 12:46:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 12:46:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 12:46:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 12:46:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 12:46:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 12:46:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 12:46:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 12:46:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 12:46:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 12:46:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 12:46:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 12:46:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 12:46:12,688 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 12:46:12,689 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 12:46:13,538 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 12:46:13,943 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-03-20 12:46:13,943 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-03-20 12:46:13,955 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 12:46:13,960 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 12:46:13,960 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 12:46:13,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 12:46:13 BoogieIcfgContainer [2022-03-20 12:46:13,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 12:46:13,963 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 12:46:13,963 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 12:46:13,965 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 12:46:13,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 12:46:11" (1/3) ... [2022-03-20 12:46:13,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1de94481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 12:46:13, skipping insertion in model container [2022-03-20 12:46:13,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 12:46:12" (2/3) ... [2022-03-20 12:46:13,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1de94481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 12:46:13, skipping insertion in model container [2022-03-20 12:46:13,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 12:46:13" (3/3) ... [2022-03-20 12:46:13,967 INFO L111 eAbstractionObserver]: Analyzing ICFG s3.i [2022-03-20 12:46:13,971 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-20 12:46:13,971 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 12:46:13,999 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 12:46:14,003 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 [2022-03-20 12:46:14,004 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 12:46:14,015 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 132 states have (on average 1.6742424242424243) internal successors, (221), 133 states have internal predecessors, (221), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 12:46:14,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-03-20 12:46:14,022 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:46:14,022 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:46:14,023 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:46:14,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:46:14,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1896540148, now seen corresponding path program 1 times [2022-03-20 12:46:14,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:14,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1389324078] [2022-03-20 12:46:14,040 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 12:46:14,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1896540148, now seen corresponding path program 2 times [2022-03-20 12:46:14,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:46:14,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273773197] [2022-03-20 12:46:14,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:46:14,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:46:14,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:14,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:46:14,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:14,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:46:14,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:46:14,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273773197] [2022-03-20 12:46:14,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273773197] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:14,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:14,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:46:14,465 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 12:46:14,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1389324078] [2022-03-20 12:46:14,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1389324078] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:14,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:14,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:46:14,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113693205] [2022-03-20 12:46:14,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:46:14,468 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:46:14,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:14,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:46:14,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:46:14,500 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) [2022-03-20 12:46:16,527 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:46:16,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:46:16,919 INFO L93 Difference]: Finished difference Result 385 states and 637 transitions. [2022-03-20 12:46:16,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:46:16,923 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 [2022-03-20 12:46:16,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:46:16,936 INFO L225 Difference]: With dead ends: 385 [2022-03-20 12:46:16,936 INFO L226 Difference]: Without dead ends: 223 [2022-03-20 12:46:16,941 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:46:16,949 INFO L913 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, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:46:16,951 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 419 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 237 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:46:16,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-03-20 12:46:16,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2022-03-20 12:46:16,993 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) [2022-03-20 12:46:16,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 327 transitions. [2022-03-20 12:46:16,996 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 327 transitions. Word has length 30 [2022-03-20 12:46:16,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:46:16,996 INFO L478 AbstractCegarLoop]: Abstraction has 223 states and 327 transitions. [2022-03-20 12:46:16,996 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) [2022-03-20 12:46:16,997 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 327 transitions. [2022-03-20 12:46:16,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-03-20 12:46:16,998 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:46:16,998 INFO L499 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] [2022-03-20 12:46:16,998 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 12:46:16,998 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:46:16,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:46:16,999 INFO L85 PathProgramCache]: Analyzing trace with hash 969835136, now seen corresponding path program 1 times [2022-03-20 12:46:16,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:16,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [701166940] [2022-03-20 12:46:17,000 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 12:46:17,000 INFO L85 PathProgramCache]: Analyzing trace with hash 969835136, now seen corresponding path program 2 times [2022-03-20 12:46:17,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:46:17,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465143223] [2022-03-20 12:46:17,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:46:17,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:46:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:17,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:46:17,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:17,233 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 12:46:17,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:46:17,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465143223] [2022-03-20 12:46:17,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465143223] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:17,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:17,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:46:17,237 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 12:46:17,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [701166940] [2022-03-20 12:46:17,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [701166940] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:17,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:17,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:46:17,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601629666] [2022-03-20 12:46:17,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:46:17,238 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:46:17,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:17,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:46:17,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:46:17,239 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) [2022-03-20 12:46:19,255 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:46:19,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:46:19,671 INFO L93 Difference]: Finished difference Result 432 states and 642 transitions. [2022-03-20 12:46:19,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:46:19,671 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 [2022-03-20 12:46:19,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:46:19,673 INFO L225 Difference]: With dead ends: 432 [2022-03-20 12:46:19,673 INFO L226 Difference]: Without dead ends: 325 [2022-03-20 12:46:19,674 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:46:19,674 INFO L913 BasicCegarLoop]: 312 mSDtfsCounter, 126 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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 [2022-03-20 12:46:19,675 INFO L914 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] [2022-03-20 12:46:19,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-03-20 12:46:19,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2022-03-20 12:46:19,690 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) [2022-03-20 12:46:19,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 476 transitions. [2022-03-20 12:46:19,691 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 476 transitions. Word has length 45 [2022-03-20 12:46:19,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:46:19,692 INFO L478 AbstractCegarLoop]: Abstraction has 325 states and 476 transitions. [2022-03-20 12:46:19,692 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) [2022-03-20 12:46:19,692 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 476 transitions. [2022-03-20 12:46:19,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-20 12:46:19,694 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:46:19,694 INFO L499 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] [2022-03-20 12:46:19,694 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 12:46:19,694 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:46:19,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:46:19,695 INFO L85 PathProgramCache]: Analyzing trace with hash -2112862728, now seen corresponding path program 1 times [2022-03-20 12:46:19,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:19,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1208536915] [2022-03-20 12:46:19,696 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 12:46:19,696 INFO L85 PathProgramCache]: Analyzing trace with hash -2112862728, now seen corresponding path program 2 times [2022-03-20 12:46:19,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:46:19,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280589971] [2022-03-20 12:46:19,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:46:19,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:46:19,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:19,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:46:19,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:19,824 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-20 12:46:19,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:46:19,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280589971] [2022-03-20 12:46:19,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280589971] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:19,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:19,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:46:19,825 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 12:46:19,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1208536915] [2022-03-20 12:46:19,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1208536915] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:19,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:19,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:46:19,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563108125] [2022-03-20 12:46:19,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:46:19,826 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:46:19,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:19,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:46:19,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:46:19,826 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) [2022-03-20 12:46:21,835 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:46:22,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:46:22,377 INFO L93 Difference]: Finished difference Result 825 states and 1216 transitions. [2022-03-20 12:46:22,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:46:22,378 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 [2022-03-20 12:46:22,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:46:22,380 INFO L225 Difference]: With dead ends: 825 [2022-03-20 12:46:22,380 INFO L226 Difference]: Without dead ends: 513 [2022-03-20 12:46:22,381 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:46:22,382 INFO L913 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, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 12:46:22,382 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 582 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 552 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 12:46:22,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-03-20 12:46:22,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 375. [2022-03-20 12:46:22,398 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) [2022-03-20 12:46:22,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 562 transitions. [2022-03-20 12:46:22,400 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 562 transitions. Word has length 63 [2022-03-20 12:46:22,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:46:22,400 INFO L478 AbstractCegarLoop]: Abstraction has 375 states and 562 transitions. [2022-03-20 12:46:22,400 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) [2022-03-20 12:46:22,400 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 562 transitions. [2022-03-20 12:46:22,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-20 12:46:22,402 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:46:22,403 INFO L499 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] [2022-03-20 12:46:22,403 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 12:46:22,403 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:46:22,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:46:22,403 INFO L85 PathProgramCache]: Analyzing trace with hash 2048091062, now seen corresponding path program 1 times [2022-03-20 12:46:22,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:22,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1955530600] [2022-03-20 12:46:22,404 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 12:46:22,404 INFO L85 PathProgramCache]: Analyzing trace with hash 2048091062, now seen corresponding path program 2 times [2022-03-20 12:46:22,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:46:22,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939677254] [2022-03-20 12:46:22,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:46:22,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:46:22,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:22,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:46:22,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:22,581 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-20 12:46:22,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:46:22,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939677254] [2022-03-20 12:46:22,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939677254] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:22,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:22,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:46:22,582 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 12:46:22,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1955530600] [2022-03-20 12:46:22,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1955530600] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:22,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:22,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:46:22,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411288215] [2022-03-20 12:46:22,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:46:22,582 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:46:22,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:22,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:46:22,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:46:22,587 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) [2022-03-20 12:46:24,599 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:46:25,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:46:25,044 INFO L93 Difference]: Finished difference Result 1012 states and 1518 transitions. [2022-03-20 12:46:25,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:46:25,045 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 [2022-03-20 12:46:25,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:46:25,047 INFO L225 Difference]: With dead ends: 1012 [2022-03-20 12:46:25,047 INFO L226 Difference]: Without dead ends: 650 [2022-03-20 12:46:25,048 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:46:25,050 INFO L913 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 [2022-03-20 12:46:25,050 INFO L914 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] [2022-03-20 12:46:25,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2022-03-20 12:46:25,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 397. [2022-03-20 12:46:25,066 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) [2022-03-20 12:46:25,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 602 transitions. [2022-03-20 12:46:25,067 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 602 transitions. Word has length 63 [2022-03-20 12:46:25,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:46:25,068 INFO L478 AbstractCegarLoop]: Abstraction has 397 states and 602 transitions. [2022-03-20 12:46:25,068 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) [2022-03-20 12:46:25,068 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 602 transitions. [2022-03-20 12:46:25,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-20 12:46:25,073 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:46:25,073 INFO L499 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] [2022-03-20 12:46:25,073 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 12:46:25,073 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:46:25,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:46:25,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1078652993, now seen corresponding path program 1 times [2022-03-20 12:46:25,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:25,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [766614160] [2022-03-20 12:46:25,074 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 12:46:25,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1078652993, now seen corresponding path program 2 times [2022-03-20 12:46:25,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:46:25,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496092522] [2022-03-20 12:46:25,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:46:25,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:46:25,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:25,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:46:25,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:25,221 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-20 12:46:25,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:46:25,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496092522] [2022-03-20 12:46:25,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496092522] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:25,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:25,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:46:25,222 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 12:46:25,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [766614160] [2022-03-20 12:46:25,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [766614160] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:25,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:25,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:46:25,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218720199] [2022-03-20 12:46:25,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:46:25,227 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:46:25,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:25,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:46:25,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:46:25,228 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) [2022-03-20 12:46:27,236 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:46:27,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:46:27,643 INFO L93 Difference]: Finished difference Result 1056 states and 1598 transitions. [2022-03-20 12:46:27,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:46:27,643 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 [2022-03-20 12:46:27,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:46:27,646 INFO L225 Difference]: With dead ends: 1056 [2022-03-20 12:46:27,646 INFO L226 Difference]: Without dead ends: 672 [2022-03-20 12:46:27,647 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:46:27,648 INFO L913 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 [2022-03-20 12:46:27,648 INFO L914 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] [2022-03-20 12:46:27,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2022-03-20 12:46:27,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 472. [2022-03-20 12:46:27,670 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) [2022-03-20 12:46:27,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 734 transitions. [2022-03-20 12:46:27,672 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 734 transitions. Word has length 64 [2022-03-20 12:46:27,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:46:27,672 INFO L478 AbstractCegarLoop]: Abstraction has 472 states and 734 transitions. [2022-03-20 12:46:27,672 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:46:27,673 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 734 transitions. [2022-03-20 12:46:27,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 12:46:27,673 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:46:27,674 INFO L499 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] [2022-03-20 12:46:27,674 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 12:46:27,674 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:46:27,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:46:27,674 INFO L85 PathProgramCache]: Analyzing trace with hash 917238579, now seen corresponding path program 1 times [2022-03-20 12:46:27,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:27,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1516238218] [2022-03-20 12:46:27,675 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 12:46:27,675 INFO L85 PathProgramCache]: Analyzing trace with hash 917238579, now seen corresponding path program 2 times [2022-03-20 12:46:27,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:46:27,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757679286] [2022-03-20 12:46:27,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:46:27,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:46:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:27,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:46:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:27,792 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-20 12:46:27,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:46:27,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757679286] [2022-03-20 12:46:27,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757679286] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:27,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:27,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:46:27,793 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 12:46:27,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1516238218] [2022-03-20 12:46:27,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1516238218] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:27,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:27,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:46:27,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721812500] [2022-03-20 12:46:27,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:46:27,794 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:46:27,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:27,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:46:27,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:46:27,795 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) [2022-03-20 12:46:29,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:46:30,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:46:30,319 INFO L93 Difference]: Finished difference Result 1113 states and 1721 transitions. [2022-03-20 12:46:30,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:46:30,319 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 [2022-03-20 12:46:30,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:46:30,322 INFO L225 Difference]: With dead ends: 1113 [2022-03-20 12:46:30,322 INFO L226 Difference]: Without dead ends: 654 [2022-03-20 12:46:30,323 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:46:30,325 INFO L913 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 [2022-03-20 12:46:30,325 INFO L914 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] [2022-03-20 12:46:30,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2022-03-20 12:46:30,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 526. [2022-03-20 12:46:30,347 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) [2022-03-20 12:46:30,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 824 transitions. [2022-03-20 12:46:30,350 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 824 transitions. Word has length 65 [2022-03-20 12:46:30,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:46:30,350 INFO L478 AbstractCegarLoop]: Abstraction has 526 states and 824 transitions. [2022-03-20 12:46:30,351 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:46:30,353 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 824 transitions. [2022-03-20 12:46:30,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-20 12:46:30,354 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:46:30,354 INFO L499 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] [2022-03-20 12:46:30,354 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 12:46:30,354 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:46:30,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:46:30,355 INFO L85 PathProgramCache]: Analyzing trace with hash 979278193, now seen corresponding path program 1 times [2022-03-20 12:46:30,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:30,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1855234839] [2022-03-20 12:46:30,355 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 12:46:30,355 INFO L85 PathProgramCache]: Analyzing trace with hash 979278193, now seen corresponding path program 2 times [2022-03-20 12:46:30,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:46:30,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622357721] [2022-03-20 12:46:30,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:46:30,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:46:30,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:30,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:46:30,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:30,473 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-20 12:46:30,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:46:30,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622357721] [2022-03-20 12:46:30,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622357721] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:30,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:30,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:46:30,474 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 12:46:30,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1855234839] [2022-03-20 12:46:30,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1855234839] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:30,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:30,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:46:30,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999185920] [2022-03-20 12:46:30,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:46:30,475 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:46:30,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:30,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:46:30,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:46:30,476 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) [2022-03-20 12:46:32,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:46:32,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:46:32,887 INFO L93 Difference]: Finished difference Result 1314 states and 2036 transitions. [2022-03-20 12:46:32,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:46:32,887 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 [2022-03-20 12:46:32,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:46:32,891 INFO L225 Difference]: With dead ends: 1314 [2022-03-20 12:46:32,891 INFO L226 Difference]: Without dead ends: 801 [2022-03-20 12:46:32,892 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:46:32,893 INFO L913 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 [2022-03-20 12:46:32,893 INFO L914 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] [2022-03-20 12:46:32,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2022-03-20 12:46:32,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 550. [2022-03-20 12:46:32,917 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) [2022-03-20 12:46:32,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 866 transitions. [2022-03-20 12:46:32,919 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 866 transitions. Word has length 65 [2022-03-20 12:46:32,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:46:32,919 INFO L478 AbstractCegarLoop]: Abstraction has 550 states and 866 transitions. [2022-03-20 12:46:32,919 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:46:32,919 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 866 transitions. [2022-03-20 12:46:32,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 12:46:32,920 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:46:32,920 INFO L499 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] [2022-03-20 12:46:32,920 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 12:46:32,920 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:46:32,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:46:32,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1634852198, now seen corresponding path program 1 times [2022-03-20 12:46:32,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:32,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [283565400] [2022-03-20 12:46:32,922 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 12:46:32,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1634852198, now seen corresponding path program 2 times [2022-03-20 12:46:32,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:46:32,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34888761] [2022-03-20 12:46:32,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:46:32,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:46:32,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:33,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:46:33,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:33,023 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-20 12:46:33,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:46:33,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34888761] [2022-03-20 12:46:33,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34888761] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:33,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:33,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:46:33,024 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 12:46:33,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [283565400] [2022-03-20 12:46:33,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [283565400] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:33,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:33,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:46:33,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585455959] [2022-03-20 12:46:33,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:46:33,025 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:46:33,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:33,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:46:33,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:46:33,025 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) [2022-03-20 12:46:35,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:46:35,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:46:35,587 INFO L93 Difference]: Finished difference Result 1259 states and 1971 transitions. [2022-03-20 12:46:35,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:46:35,587 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 [2022-03-20 12:46:35,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:46:35,589 INFO L225 Difference]: With dead ends: 1259 [2022-03-20 12:46:35,590 INFO L226 Difference]: Without dead ends: 722 [2022-03-20 12:46:35,590 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:46:35,591 INFO L913 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 [2022-03-20 12:46:35,591 INFO L914 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] [2022-03-20 12:46:35,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2022-03-20 12:46:35,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 606. [2022-03-20 12:46:35,614 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) [2022-03-20 12:46:35,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 958 transitions. [2022-03-20 12:46:35,616 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 958 transitions. Word has length 66 [2022-03-20 12:46:35,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:46:35,617 INFO L478 AbstractCegarLoop]: Abstraction has 606 states and 958 transitions. [2022-03-20 12:46:35,617 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) [2022-03-20 12:46:35,617 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 958 transitions. [2022-03-20 12:46:35,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 12:46:35,618 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:46:35,618 INFO L499 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] [2022-03-20 12:46:35,618 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 12:46:35,618 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:46:35,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:46:35,618 INFO L85 PathProgramCache]: Analyzing trace with hash 288375836, now seen corresponding path program 1 times [2022-03-20 12:46:35,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:35,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1479699872] [2022-03-20 12:46:35,619 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 12:46:35,619 INFO L85 PathProgramCache]: Analyzing trace with hash 288375836, now seen corresponding path program 2 times [2022-03-20 12:46:35,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:46:35,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008194121] [2022-03-20 12:46:35,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:46:35,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:46:35,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:35,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:46:35,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:35,727 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-20 12:46:35,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:46:35,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008194121] [2022-03-20 12:46:35,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008194121] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:35,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:35,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:46:35,728 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 12:46:35,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1479699872] [2022-03-20 12:46:35,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1479699872] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:35,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:35,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:46:35,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810724824] [2022-03-20 12:46:35,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:46:35,728 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:46:35,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:35,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:46:35,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:46:35,729 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) [2022-03-20 12:46:37,738 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:46:38,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:46:38,200 INFO L93 Difference]: Finished difference Result 1399 states and 2175 transitions. [2022-03-20 12:46:38,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:46:38,201 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 [2022-03-20 12:46:38,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:46:38,203 INFO L225 Difference]: With dead ends: 1399 [2022-03-20 12:46:38,203 INFO L226 Difference]: Without dead ends: 806 [2022-03-20 12:46:38,205 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:46:38,207 INFO L913 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 [2022-03-20 12:46:38,207 INFO L914 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] [2022-03-20 12:46:38,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2022-03-20 12:46:38,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 556. [2022-03-20 12:46:38,231 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) [2022-03-20 12:46:38,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 875 transitions. [2022-03-20 12:46:38,233 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 875 transitions. Word has length 66 [2022-03-20 12:46:38,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:46:38,233 INFO L478 AbstractCegarLoop]: Abstraction has 556 states and 875 transitions. [2022-03-20 12:46:38,233 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) [2022-03-20 12:46:38,233 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 875 transitions. [2022-03-20 12:46:38,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 12:46:38,234 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:46:38,234 INFO L499 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] [2022-03-20 12:46:38,235 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 12:46:38,235 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:46:38,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:46:38,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1163380997, now seen corresponding path program 1 times [2022-03-20 12:46:38,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:38,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [25019809] [2022-03-20 12:46:38,236 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 12:46:38,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1163380997, now seen corresponding path program 2 times [2022-03-20 12:46:38,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:46:38,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314965798] [2022-03-20 12:46:38,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:46:38,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:46:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:38,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:46:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:38,350 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-20 12:46:38,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:46:38,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314965798] [2022-03-20 12:46:38,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314965798] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:38,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:38,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:46:38,350 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 12:46:38,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [25019809] [2022-03-20 12:46:38,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [25019809] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:38,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:38,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:46:38,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908362309] [2022-03-20 12:46:38,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:46:38,351 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:46:38,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:38,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:46:38,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:46:38,352 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) [2022-03-20 12:46:40,373 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:46:40,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:46:40,907 INFO L93 Difference]: Finished difference Result 1271 states and 1987 transitions. [2022-03-20 12:46:40,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:46:40,908 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 [2022-03-20 12:46:40,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:46:40,910 INFO L225 Difference]: With dead ends: 1271 [2022-03-20 12:46:40,910 INFO L226 Difference]: Without dead ends: 728 [2022-03-20 12:46:40,911 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:46:40,912 INFO L913 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 [2022-03-20 12:46:40,912 INFO L914 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] [2022-03-20 12:46:40,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2022-03-20 12:46:40,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 602. [2022-03-20 12:46:40,953 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) [2022-03-20 12:46:40,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 953 transitions. [2022-03-20 12:46:40,954 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 953 transitions. Word has length 84 [2022-03-20 12:46:40,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:46:40,955 INFO L478 AbstractCegarLoop]: Abstraction has 602 states and 953 transitions. [2022-03-20 12:46:40,955 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) [2022-03-20 12:46:40,955 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 953 transitions. [2022-03-20 12:46:40,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 12:46:40,956 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:46:40,956 INFO L499 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] [2022-03-20 12:46:40,956 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 12:46:40,956 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:46:40,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:46:40,957 INFO L85 PathProgramCache]: Analyzing trace with hash 2056867335, now seen corresponding path program 1 times [2022-03-20 12:46:40,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:40,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [670495817] [2022-03-20 12:46:40,957 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 12:46:40,958 INFO L85 PathProgramCache]: Analyzing trace with hash 2056867335, now seen corresponding path program 2 times [2022-03-20 12:46:40,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:46:40,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362218603] [2022-03-20 12:46:40,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:46:40,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:46:41,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:41,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:46:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:41,055 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-20 12:46:41,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:46:41,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362218603] [2022-03-20 12:46:41,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362218603] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:41,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:41,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:46:41,056 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 12:46:41,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [670495817] [2022-03-20 12:46:41,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [670495817] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:41,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:41,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:46:41,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309265532] [2022-03-20 12:46:41,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:46:41,056 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:46:41,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:41,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:46:41,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:46:41,057 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) [2022-03-20 12:46:43,065 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:46:43,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:46:43,461 INFO L93 Difference]: Finished difference Result 1275 states and 2014 transitions. [2022-03-20 12:46:43,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:46:43,461 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 [2022-03-20 12:46:43,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:46:43,464 INFO L225 Difference]: With dead ends: 1275 [2022-03-20 12:46:43,464 INFO L226 Difference]: Without dead ends: 686 [2022-03-20 12:46:43,465 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:46:43,465 INFO L913 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, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:46:43,466 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 510 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 386 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:46:43,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2022-03-20 12:46:43,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 642. [2022-03-20 12:46:43,492 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) [2022-03-20 12:46:43,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 1021 transitions. [2022-03-20 12:46:43,494 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 1021 transitions. Word has length 84 [2022-03-20 12:46:43,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:46:43,494 INFO L478 AbstractCegarLoop]: Abstraction has 642 states and 1021 transitions. [2022-03-20 12:46:43,494 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:46:43,494 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 1021 transitions. [2022-03-20 12:46:43,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-20 12:46:43,495 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:46:43,496 INFO L499 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] [2022-03-20 12:46:43,496 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 12:46:43,496 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:46:43,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:46:43,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1451323138, now seen corresponding path program 1 times [2022-03-20 12:46:43,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:43,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1537593663] [2022-03-20 12:46:43,497 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 12:46:43,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1451323138, now seen corresponding path program 2 times [2022-03-20 12:46:43,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:46:43,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302831152] [2022-03-20 12:46:43,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:46:43,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:46:43,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:43,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:46:43,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:43,619 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-20 12:46:43,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:46:43,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302831152] [2022-03-20 12:46:43,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302831152] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:43,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:43,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:46:43,620 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 12:46:43,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1537593663] [2022-03-20 12:46:43,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1537593663] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:43,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:43,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:46:43,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043817122] [2022-03-20 12:46:43,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:46:43,621 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:46:43,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:43,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:46:43,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:46:43,621 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) [2022-03-20 12:46:45,630 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:46:46,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:46:46,130 INFO L93 Difference]: Finished difference Result 1391 states and 2192 transitions. [2022-03-20 12:46:46,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:46:46,130 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 [2022-03-20 12:46:46,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:46:46,133 INFO L225 Difference]: With dead ends: 1391 [2022-03-20 12:46:46,133 INFO L226 Difference]: Without dead ends: 762 [2022-03-20 12:46:46,134 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:46:46,134 INFO L913 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 [2022-03-20 12:46:46,135 INFO L914 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] [2022-03-20 12:46:46,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2022-03-20 12:46:46,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 644. [2022-03-20 12:46:46,162 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) [2022-03-20 12:46:46,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 1023 transitions. [2022-03-20 12:46:46,163 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 1023 transitions. Word has length 85 [2022-03-20 12:46:46,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:46:46,163 INFO L478 AbstractCegarLoop]: Abstraction has 644 states and 1023 transitions. [2022-03-20 12:46:46,163 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) [2022-03-20 12:46:46,163 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 1023 transitions. [2022-03-20 12:46:46,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-03-20 12:46:46,165 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:46:46,165 INFO L499 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] [2022-03-20 12:46:46,165 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 12:46:46,165 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:46:46,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:46:46,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1229992776, now seen corresponding path program 1 times [2022-03-20 12:46:46,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:46,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [897303170] [2022-03-20 12:46:46,166 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 12:46:46,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1229992776, now seen corresponding path program 2 times [2022-03-20 12:46:46,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:46:46,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851114423] [2022-03-20 12:46:46,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:46:46,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:46:46,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:46,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:46:46,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:46,293 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-20 12:46:46,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:46:46,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851114423] [2022-03-20 12:46:46,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851114423] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:46,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:46,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:46:46,294 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 12:46:46,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [897303170] [2022-03-20 12:46:46,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [897303170] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:46,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:46,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:46:46,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982947951] [2022-03-20 12:46:46,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:46:46,294 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:46:46,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:46,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:46:46,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:46:46,295 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) [2022-03-20 12:46:48,311 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:46:48,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:46:48,771 INFO L93 Difference]: Finished difference Result 1391 states and 2190 transitions. [2022-03-20 12:46:48,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:46:48,771 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 [2022-03-20 12:46:48,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:46:48,774 INFO L225 Difference]: With dead ends: 1391 [2022-03-20 12:46:48,774 INFO L226 Difference]: Without dead ends: 760 [2022-03-20 12:46:48,775 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:46:48,775 INFO L913 BasicCegarLoop]: 231 mSDtfsCounter, 94 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:46:48,775 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 554 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 515 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:46:48,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2022-03-20 12:46:48,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 644. [2022-03-20 12:46:48,804 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) [2022-03-20 12:46:48,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 1021 transitions. [2022-03-20 12:46:48,805 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 1021 transitions. Word has length 99 [2022-03-20 12:46:48,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:46:48,805 INFO L478 AbstractCegarLoop]: Abstraction has 644 states and 1021 transitions. [2022-03-20 12:46:48,806 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:46:48,806 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 1021 transitions. [2022-03-20 12:46:48,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-03-20 12:46:48,807 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:46:48,807 INFO L499 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] [2022-03-20 12:46:48,807 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 12:46:48,807 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:46:48,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:46:48,808 INFO L85 PathProgramCache]: Analyzing trace with hash 311489703, now seen corresponding path program 1 times [2022-03-20 12:46:48,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:48,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1672786582] [2022-03-20 12:46:51,127 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 12:46:51,128 INFO L85 PathProgramCache]: Analyzing trace with hash 311489703, now seen corresponding path program 2 times [2022-03-20 12:46:51,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:46:51,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586069224] [2022-03-20 12:46:51,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:46:51,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:46:51,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:51,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:46:51,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:51,229 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-20 12:46:51,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:46:51,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586069224] [2022-03-20 12:46:51,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586069224] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:51,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:51,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:46:51,230 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 12:46:51,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1672786582] [2022-03-20 12:46:51,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1672786582] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:51,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:51,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:46:51,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305845076] [2022-03-20 12:46:51,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:46:51,231 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:46:51,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:51,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:46:51,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:46:51,231 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) [2022-03-20 12:46:53,240 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:46:53,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:46:53,700 INFO L93 Difference]: Finished difference Result 1328 states and 2070 transitions. [2022-03-20 12:46:53,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:46:53,701 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 [2022-03-20 12:46:53,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:46:53,703 INFO L225 Difference]: With dead ends: 1328 [2022-03-20 12:46:53,703 INFO L226 Difference]: Without dead ends: 919 [2022-03-20 12:46:53,704 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:46:53,705 INFO L913 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 [2022-03-20 12:46:53,705 INFO L914 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] [2022-03-20 12:46:53,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2022-03-20 12:46:53,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 692. [2022-03-20 12:46:53,738 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) [2022-03-20 12:46:53,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1089 transitions. [2022-03-20 12:46:53,740 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1089 transitions. Word has length 99 [2022-03-20 12:46:53,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:46:53,740 INFO L478 AbstractCegarLoop]: Abstraction has 692 states and 1089 transitions. [2022-03-20 12:46:53,740 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:46:53,740 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1089 transitions. [2022-03-20 12:46:53,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-03-20 12:46:53,741 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:46:53,741 INFO L499 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] [2022-03-20 12:46:53,741 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 12:46:53,742 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:46:53,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:46:53,742 INFO L85 PathProgramCache]: Analyzing trace with hash -2137730133, now seen corresponding path program 1 times [2022-03-20 12:46:53,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:53,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1092564206] [2022-03-20 12:46:53,742 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 12:46:53,743 INFO L85 PathProgramCache]: Analyzing trace with hash -2137730133, now seen corresponding path program 2 times [2022-03-20 12:46:53,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:46:53,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726201439] [2022-03-20 12:46:53,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:46:53,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:46:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:53,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:46:53,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:53,849 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-03-20 12:46:53,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:46:53,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726201439] [2022-03-20 12:46:53,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726201439] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:53,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:53,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:46:53,850 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 12:46:53,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1092564206] [2022-03-20 12:46:53,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1092564206] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:53,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:53,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:46:53,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134365261] [2022-03-20 12:46:53,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:46:53,851 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:46:53,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:53,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:46:53,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:46:53,852 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) [2022-03-20 12:46:55,865 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:46:56,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:46:56,285 INFO L93 Difference]: Finished difference Result 1565 states and 2425 transitions. [2022-03-20 12:46:56,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:46:56,286 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 [2022-03-20 12:46:56,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:46:56,288 INFO L225 Difference]: With dead ends: 1565 [2022-03-20 12:46:56,289 INFO L226 Difference]: Without dead ends: 886 [2022-03-20 12:46:56,290 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:46:56,290 INFO L913 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, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:46:56,290 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 298 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 391 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:46:56,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2022-03-20 12:46:56,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 692. [2022-03-20 12:46:56,326 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) [2022-03-20 12:46:56,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1073 transitions. [2022-03-20 12:46:56,328 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1073 transitions. Word has length 100 [2022-03-20 12:46:56,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:46:56,328 INFO L478 AbstractCegarLoop]: Abstraction has 692 states and 1073 transitions. [2022-03-20 12:46:56,328 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:46:56,328 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1073 transitions. [2022-03-20 12:46:56,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-03-20 12:46:56,330 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:46:56,330 INFO L499 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] [2022-03-20 12:46:56,330 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 12:46:56,330 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:46:56,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:46:56,330 INFO L85 PathProgramCache]: Analyzing trace with hash 428311239, now seen corresponding path program 1 times [2022-03-20 12:46:56,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:56,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [95539567] [2022-03-20 12:46:56,331 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 12:46:56,331 INFO L85 PathProgramCache]: Analyzing trace with hash 428311239, now seen corresponding path program 2 times [2022-03-20 12:46:56,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:46:56,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440767241] [2022-03-20 12:46:56,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:46:56,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:46:56,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:56,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:46:56,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:56,427 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-03-20 12:46:56,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:46:56,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440767241] [2022-03-20 12:46:56,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440767241] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:56,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:56,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:46:56,428 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 12:46:56,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [95539567] [2022-03-20 12:46:56,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [95539567] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:56,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:56,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:46:56,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252650264] [2022-03-20 12:46:56,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:46:56,429 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:46:56,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:56,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:46:56,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:46:56,429 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) [2022-03-20 12:46:58,443 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:46:58,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:46:58,946 INFO L93 Difference]: Finished difference Result 1581 states and 2420 transitions. [2022-03-20 12:46:58,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:46:58,947 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 [2022-03-20 12:46:58,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:46:58,949 INFO L225 Difference]: With dead ends: 1581 [2022-03-20 12:46:58,949 INFO L226 Difference]: Without dead ends: 902 [2022-03-20 12:46:58,950 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:46:58,951 INFO L913 BasicCegarLoop]: 207 mSDtfsCounter, 111 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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 [2022-03-20 12:46:58,951 INFO L914 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] [2022-03-20 12:46:58,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2022-03-20 12:46:58,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 695. [2022-03-20 12:46:58,989 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) [2022-03-20 12:46:58,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 1063 transitions. [2022-03-20 12:46:58,991 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 1063 transitions. Word has length 100 [2022-03-20 12:46:58,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:46:58,991 INFO L478 AbstractCegarLoop]: Abstraction has 695 states and 1063 transitions. [2022-03-20 12:46:58,991 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:46:58,991 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 1063 transitions. [2022-03-20 12:46:58,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-20 12:46:58,993 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:46:58,993 INFO L499 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] [2022-03-20 12:46:58,993 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 12:46:58,993 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:46:58,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:46:58,993 INFO L85 PathProgramCache]: Analyzing trace with hash -852029360, now seen corresponding path program 1 times [2022-03-20 12:46:58,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:58,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1281896387] [2022-03-20 12:46:58,994 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 12:46:58,994 INFO L85 PathProgramCache]: Analyzing trace with hash -852029360, now seen corresponding path program 2 times [2022-03-20 12:46:58,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:46:58,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421855816] [2022-03-20 12:46:58,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:46:58,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:46:59,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:59,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:46:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:46:59,109 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-03-20 12:46:59,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:46:59,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421855816] [2022-03-20 12:46:59,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421855816] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:59,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:59,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:46:59,109 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 12:46:59,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1281896387] [2022-03-20 12:46:59,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1281896387] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:46:59,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:46:59,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:46:59,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484091187] [2022-03-20 12:46:59,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:46:59,110 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:46:59,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 12:46:59,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:46:59,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:46:59,111 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) [2022-03-20 12:47:01,124 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:47:01,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:47:01,527 INFO L93 Difference]: Finished difference Result 1566 states and 2367 transitions. [2022-03-20 12:47:01,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:47:01,527 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 [2022-03-20 12:47:01,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:47:01,530 INFO L225 Difference]: With dead ends: 1566 [2022-03-20 12:47:01,530 INFO L226 Difference]: Without dead ends: 887 [2022-03-20 12:47:01,532 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:47:01,532 INFO L913 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, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:47:01,532 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 320 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 403 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:47:01,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2022-03-20 12:47:01,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 695. [2022-03-20 12:47:01,574 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) [2022-03-20 12:47:01,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 1047 transitions. [2022-03-20 12:47:01,576 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 1047 transitions. Word has length 101 [2022-03-20 12:47:01,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:47:01,576 INFO L478 AbstractCegarLoop]: Abstraction has 695 states and 1047 transitions. [2022-03-20 12:47:01,576 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) [2022-03-20 12:47:01,576 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 1047 transitions. [2022-03-20 12:47:01,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-20 12:47:01,577 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:47:01,577 INFO L499 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] [2022-03-20 12:47:01,578 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 12:47:01,578 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:47:01,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:47:01,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1276111053, now seen corresponding path program 1 times [2022-03-20 12:47:01,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 12:47:01,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1605954660] [2022-03-20 12:47:03,805 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 12:47:03,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1276111053, now seen corresponding path program 2 times [2022-03-20 12:47:03,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:47:03,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481436167] [2022-03-20 12:47:03,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:47:03,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:47:03,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:47:03,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:47:03,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:47:03,914 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-03-20 12:47:03,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:47:03,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481436167] [2022-03-20 12:47:03,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481436167] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:47:03,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:47:03,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:47:03,915 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 12:47:03,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1605954660] [2022-03-20 12:47:03,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1605954660] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:47:03,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:47:03,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:47:03,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679260689] [2022-03-20 12:47:03,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:47:03,916 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:47:03,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 12:47:03,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:47:03,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:47:03,916 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) [2022-03-20 12:47:05,924 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:47:06,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:47:06,415 INFO L93 Difference]: Finished difference Result 1246 states and 1868 transitions. [2022-03-20 12:47:06,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:47:06,416 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 [2022-03-20 12:47:06,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:47:06,418 INFO L225 Difference]: With dead ends: 1246 [2022-03-20 12:47:06,418 INFO L226 Difference]: Without dead ends: 805 [2022-03-20 12:47:06,419 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:47:06,419 INFO L913 BasicCegarLoop]: 225 mSDtfsCounter, 82 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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 [2022-03-20 12:47:06,420 INFO L914 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] [2022-03-20 12:47:06,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2022-03-20 12:47:06,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 695. [2022-03-20 12:47:06,464 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) [2022-03-20 12:47:06,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 1045 transitions. [2022-03-20 12:47:06,465 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 1045 transitions. Word has length 101 [2022-03-20 12:47:06,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:47:06,465 INFO L478 AbstractCegarLoop]: Abstraction has 695 states and 1045 transitions. [2022-03-20 12:47:06,465 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) [2022-03-20 12:47:06,465 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 1045 transitions. [2022-03-20 12:47:06,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-20 12:47:06,470 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:47:06,470 INFO L499 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] [2022-03-20 12:47:06,470 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 12:47:06,470 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:47:06,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:47:06,471 INFO L85 PathProgramCache]: Analyzing trace with hash 725640173, now seen corresponding path program 1 times [2022-03-20 12:47:06,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 12:47:06,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [941638886] [2022-03-20 12:47:06,471 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 12:47:06,471 INFO L85 PathProgramCache]: Analyzing trace with hash 725640173, now seen corresponding path program 2 times [2022-03-20 12:47:06,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:47:06,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639488809] [2022-03-20 12:47:06,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:47:06,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:47:06,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:47:06,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:47:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:47:06,584 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-20 12:47:06,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:47:06,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639488809] [2022-03-20 12:47:06,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639488809] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:47:06,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:47:06,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:47:06,585 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 12:47:06,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [941638886] [2022-03-20 12:47:06,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [941638886] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:47:06,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:47:06,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:47:06,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989532016] [2022-03-20 12:47:06,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:47:06,586 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:47:06,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 12:47:06,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:47:06,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:47:06,586 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) [2022-03-20 12:47:08,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:47:09,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:47:09,107 INFO L93 Difference]: Finished difference Result 1484 states and 2223 transitions. [2022-03-20 12:47:09,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:47:09,108 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 [2022-03-20 12:47:09,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:47:09,110 INFO L225 Difference]: With dead ends: 1484 [2022-03-20 12:47:09,110 INFO L226 Difference]: Without dead ends: 805 [2022-03-20 12:47:09,111 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:47:09,112 INFO L913 BasicCegarLoop]: 224 mSDtfsCounter, 62 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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 [2022-03-20 12:47:09,112 INFO L914 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] [2022-03-20 12:47:09,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2022-03-20 12:47:09,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 721. [2022-03-20 12:47:09,158 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) [2022-03-20 12:47:09,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 1087 transitions. [2022-03-20 12:47:09,159 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 1087 transitions. Word has length 101 [2022-03-20 12:47:09,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:47:09,160 INFO L478 AbstractCegarLoop]: Abstraction has 721 states and 1087 transitions. [2022-03-20 12:47:09,160 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:47:09,160 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 1087 transitions. [2022-03-20 12:47:09,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-20 12:47:09,161 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:47:09,161 INFO L499 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] [2022-03-20 12:47:09,162 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 12:47:09,162 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:47:09,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:47:09,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1316661163, now seen corresponding path program 1 times [2022-03-20 12:47:09,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 12:47:09,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [201934372] [2022-03-20 12:47:09,163 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 12:47:09,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1316661163, now seen corresponding path program 2 times [2022-03-20 12:47:09,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:47:09,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109430948] [2022-03-20 12:47:09,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:47:09,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:47:09,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:47:09,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:47:09,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:47:09,267 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-20 12:47:09,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:47:09,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109430948] [2022-03-20 12:47:09,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109430948] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:47:09,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:47:09,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:47:09,268 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 12:47:09,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [201934372] [2022-03-20 12:47:09,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [201934372] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:47:09,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:47:09,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:47:09,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966556937] [2022-03-20 12:47:09,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:47:09,268 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:47:09,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 12:47:09,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:47:09,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:47:09,269 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) [2022-03-20 12:47:11,277 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:47:11,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:47:11,670 INFO L93 Difference]: Finished difference Result 1618 states and 2415 transitions. [2022-03-20 12:47:11,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:47:11,670 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 [2022-03-20 12:47:11,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:47:11,673 INFO L225 Difference]: With dead ends: 1618 [2022-03-20 12:47:11,673 INFO L226 Difference]: Without dead ends: 913 [2022-03-20 12:47:11,674 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:47:11,674 INFO L913 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, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:47:11,674 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 298 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 391 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:47:11,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2022-03-20 12:47:11,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 754. [2022-03-20 12:47:11,738 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) [2022-03-20 12:47:11,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1150 transitions. [2022-03-20 12:47:11,739 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1150 transitions. Word has length 101 [2022-03-20 12:47:11,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:47:11,739 INFO L478 AbstractCegarLoop]: Abstraction has 754 states and 1150 transitions. [2022-03-20 12:47:11,739 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:47:11,739 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1150 transitions. [2022-03-20 12:47:11,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-20 12:47:11,741 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:47:11,741 INFO L499 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] [2022-03-20 12:47:11,741 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 12:47:11,741 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:47:11,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:47:11,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1057281585, now seen corresponding path program 1 times [2022-03-20 12:47:11,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 12:47:11,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2049070848] [2022-03-20 12:47:13,994 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 12:47:13,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1057281585, now seen corresponding path program 2 times [2022-03-20 12:47:13,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:47:13,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599945466] [2022-03-20 12:47:13,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:47:13,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:47:14,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:47:14,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:47:14,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:47:14,092 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-03-20 12:47:14,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:47:14,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599945466] [2022-03-20 12:47:14,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599945466] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:47:14,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:47:14,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:47:14,093 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 12:47:14,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2049070848] [2022-03-20 12:47:14,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2049070848] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:47:14,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:47:14,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:47:14,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061937810] [2022-03-20 12:47:14,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:47:14,094 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:47:14,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 12:47:14,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:47:14,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:47:14,094 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) [2022-03-20 12:47:16,102 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:47:16,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:47:16,510 INFO L93 Difference]: Finished difference Result 1447 states and 2183 transitions. [2022-03-20 12:47:16,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:47:16,510 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 [2022-03-20 12:47:16,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:47:16,513 INFO L225 Difference]: With dead ends: 1447 [2022-03-20 12:47:16,513 INFO L226 Difference]: Without dead ends: 971 [2022-03-20 12:47:16,514 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:47:16,514 INFO L913 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, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 12:47:16,515 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 330 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 402 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 12:47:16,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2022-03-20 12:47:16,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 757. [2022-03-20 12:47:16,579 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) [2022-03-20 12:47:16,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 1145 transitions. [2022-03-20 12:47:16,580 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 1145 transitions. Word has length 101 [2022-03-20 12:47:16,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:47:16,581 INFO L478 AbstractCegarLoop]: Abstraction has 757 states and 1145 transitions. [2022-03-20 12:47:16,581 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) [2022-03-20 12:47:16,581 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 1145 transitions. [2022-03-20 12:47:16,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-03-20 12:47:16,582 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:47:16,582 INFO L499 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] [2022-03-20 12:47:16,583 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 12:47:16,583 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:47:16,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:47:16,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1200804144, now seen corresponding path program 1 times [2022-03-20 12:47:16,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 12:47:16,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [54887027] [2022-03-20 12:47:22,258 WARN L232 SmtUtils]: Spent 5.67s on a formula simplification. DAG size of input: 198 DAG size of output: 190 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-20 12:47:38,496 WARN L232 SmtUtils]: Spent 14.89s 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) [2022-03-20 12:47:46,250 WARN L232 SmtUtils]: Spent 5.38s 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) [2022-03-20 12:47:47,706 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 12:47:47,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1200804144, now seen corresponding path program 2 times [2022-03-20 12:47:47,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:47:47,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264270483] [2022-03-20 12:47:47,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:47:47,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:47:47,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:47:47,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:47:47,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:47:47,820 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-03-20 12:47:47,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:47:47,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264270483] [2022-03-20 12:47:47,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264270483] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:47:47,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:47:47,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:47:47,822 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 12:47:47,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [54887027] [2022-03-20 12:47:47,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [54887027] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:47:47,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:47:47,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:47:47,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386634580] [2022-03-20 12:47:47,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:47:47,822 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:47:47,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 12:47:47,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:47:47,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:47:47,823 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) [2022-03-20 12:47:49,839 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:47:50,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:47:50,299 INFO L93 Difference]: Finished difference Result 1499 states and 2277 transitions. [2022-03-20 12:47:50,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:47:50,299 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 [2022-03-20 12:47:50,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:47:50,302 INFO L225 Difference]: With dead ends: 1499 [2022-03-20 12:47:50,302 INFO L226 Difference]: Without dead ends: 1023 [2022-03-20 12:47:50,303 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:47:50,304 INFO L913 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, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 12:47:50,304 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 483 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 343 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 12:47:50,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2022-03-20 12:47:50,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 1023. [2022-03-20 12:47:50,370 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) [2022-03-20 12:47:50,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1547 transitions. [2022-03-20 12:47:50,371 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1547 transitions. Word has length 116 [2022-03-20 12:47:50,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:47:50,371 INFO L478 AbstractCegarLoop]: Abstraction has 1023 states and 1547 transitions. [2022-03-20 12:47:50,371 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) [2022-03-20 12:47:50,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1547 transitions. [2022-03-20 12:47:50,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-03-20 12:47:50,380 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:47:50,380 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:47:50,380 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 12:47:50,380 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:47:50,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:47:50,381 INFO L85 PathProgramCache]: Analyzing trace with hash -816970310, now seen corresponding path program 1 times [2022-03-20 12:47:50,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 12:47:50,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [557050676] [2022-03-20 12:47:50,381 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 12:47:50,381 INFO L85 PathProgramCache]: Analyzing trace with hash -816970310, now seen corresponding path program 2 times [2022-03-20 12:47:50,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:47:50,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233777627] [2022-03-20 12:47:50,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:47:50,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:47:50,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:47:50,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:47:50,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:47:50,469 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-20 12:47:50,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:47:50,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233777627] [2022-03-20 12:47:50,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233777627] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:47:50,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:47:50,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:47:50,470 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 12:47:50,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [557050676] [2022-03-20 12:47:50,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [557050676] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:47:50,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:47:50,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:47:50,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873569153] [2022-03-20 12:47:50,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:47:50,471 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:47:50,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 12:47:50,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:47:50,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:47:50,471 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) [2022-03-20 12:47:52,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:47:52,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:47:52,898 INFO L93 Difference]: Finished difference Result 2031 states and 3079 transitions. [2022-03-20 12:47:52,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:47:52,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2022-03-20 12:47:52,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:47:52,902 INFO L225 Difference]: With dead ends: 2031 [2022-03-20 12:47:52,902 INFO L226 Difference]: Without dead ends: 1289 [2022-03-20 12:47:52,903 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:47:52,904 INFO L913 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 [2022-03-20 12:47:52,904 INFO L914 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] [2022-03-20 12:47:52,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2022-03-20 12:47:52,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1287. [2022-03-20 12:47:52,978 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) [2022-03-20 12:47:52,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 1287 states and 1946 transitions. [2022-03-20 12:47:52,979 INFO L78 Accepts]: Start accepts. Automaton has 1287 states and 1946 transitions. Word has length 119 [2022-03-20 12:47:52,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:47:52,980 INFO L478 AbstractCegarLoop]: Abstraction has 1287 states and 1946 transitions. [2022-03-20 12:47:52,980 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 12:47:52,980 INFO L276 IsEmpty]: Start isEmpty. Operand 1287 states and 1946 transitions. [2022-03-20 12:47:52,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-03-20 12:47:52,981 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:47:52,981 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:47:52,982 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 12:47:52,982 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:47:52,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:47:52,982 INFO L85 PathProgramCache]: Analyzing trace with hash -676421700, now seen corresponding path program 1 times [2022-03-20 12:47:52,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 12:47:52,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [364547207] [2022-03-20 12:47:52,983 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 12:47:52,983 INFO L85 PathProgramCache]: Analyzing trace with hash -676421700, now seen corresponding path program 2 times [2022-03-20 12:47:52,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:47:52,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307282433] [2022-03-20 12:47:52,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:47:52,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:47:53,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:47:53,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:47:53,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:47:53,072 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-20 12:47:53,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:47:53,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307282433] [2022-03-20 12:47:53,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307282433] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:47:53,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:47:53,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:47:53,073 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 12:47:53,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [364547207] [2022-03-20 12:47:53,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [364547207] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:47:53,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:47:53,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 12:47:53,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026756056] [2022-03-20 12:47:53,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:47:53,074 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 12:47:53,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 12:47:53,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 12:47:53,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:47:53,074 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) [2022-03-20 12:47:55,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:47:55,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:47:55,512 INFO L93 Difference]: Finished difference Result 2267 states and 3431 transitions. [2022-03-20 12:47:55,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 12:47:55,512 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 [2022-03-20 12:47:55,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:47:55,516 INFO L225 Difference]: With dead ends: 2267 [2022-03-20 12:47:55,516 INFO L226 Difference]: Without dead ends: 1261 [2022-03-20 12:47:55,517 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 12:47:55,517 INFO L913 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 [2022-03-20 12:47:55,518 INFO L914 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] [2022-03-20 12:47:55,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1261 states. [2022-03-20 12:47:55,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1261 to 1261. [2022-03-20 12:47:55,614 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) [2022-03-20 12:47:55,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1261 states to 1261 states and 1900 transitions. [2022-03-20 12:47:55,615 INFO L78 Accepts]: Start accepts. Automaton has 1261 states and 1900 transitions. Word has length 119 [2022-03-20 12:47:55,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:47:55,615 INFO L478 AbstractCegarLoop]: Abstraction has 1261 states and 1900 transitions. [2022-03-20 12:47:55,616 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) [2022-03-20 12:47:55,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1261 states and 1900 transitions. [2022-03-20 12:47:55,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-20 12:47:55,617 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:47:55,617 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:47:55,618 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 12:47:55,618 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:47:55,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:47:55,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1107867599, now seen corresponding path program 1 times [2022-03-20 12:47:55,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 12:47:55,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [457961824] [2022-03-20 12:47:55,620 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 12:47:55,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1107867599, now seen corresponding path program 2 times [2022-03-20 12:47:55,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:47:55,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330455263] [2022-03-20 12:47:55,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:47:55,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:47:55,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:47:55,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 12:47:55,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 12:47:55,723 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-03-20 12:47:55,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 12:47:55,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330455263] [2022-03-20 12:47:55,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330455263] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:47:55,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:47:55,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:47:55,723 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 12:47:55,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [457961824] [2022-03-20 12:47:55,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [457961824] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 12:47:55,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 12:47:55,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 12:47:55,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650190135] [2022-03-20 12:47:55,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 12:47:55,724 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 12:47:55,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 12:47:55,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 12:47:55,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 12:47:55,725 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) [2022-03-20 12:47:57,733 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 12:47:58,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 12:47:58,190 INFO L93 Difference]: Finished difference Result 2764 states and 4089 transitions. [2022-03-20 12:47:58,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 12:47:58,191 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 [2022-03-20 12:47:58,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 12:47:58,194 INFO L225 Difference]: With dead ends: 2764 [2022-03-20 12:47:58,194 INFO L226 Difference]: Without dead ends: 1519 [2022-03-20 12:47:58,196 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 12:47:58,196 INFO L913 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 [2022-03-20 12:47:58,196 INFO L914 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] [2022-03-20 12:47:58,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2022-03-20 12:47:58,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1261. [2022-03-20 12:47:58,290 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) [2022-03-20 12:47:58,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1261 states to 1261 states and 1882 transitions. [2022-03-20 12:47:58,292 INFO L78 Accepts]: Start accepts. Automaton has 1261 states and 1882 transitions. Word has length 143 [2022-03-20 12:47:58,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 12:47:58,292 INFO L478 AbstractCegarLoop]: Abstraction has 1261 states and 1882 transitions. [2022-03-20 12:47:58,292 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) [2022-03-20 12:47:58,292 INFO L276 IsEmpty]: Start isEmpty. Operand 1261 states and 1882 transitions. [2022-03-20 12:47:58,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-20 12:47:58,294 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 12:47:58,294 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 12:47:58,294 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 12:47:58,294 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 12:47:58,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 12:47:58,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1878601165, now seen corresponding path program 1 times [2022-03-20 12:47:58,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 12:47:58,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1080952062] [2022-03-20 12:47:58,295 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 12:47:58,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1878601165, now seen corresponding path program 2 times [2022-03-20 12:47:58,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 12:47:58,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265569452] [2022-03-20 12:47:58,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 12:47:58,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 12:47:58,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-20 12:47:58,982 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-20 12:47:59,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-20 12:47:59,270 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-20 12:47:59,270 INFO L130 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found a feasible trace [2022-03-20 12:47:59,270 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-03-20 12:47:59,274 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-20 12:47:59,276 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-20 12:47:59,278 INFO L719 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] [2022-03-20 12:47:59,280 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-20 12:47:59,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 12:47:59 BoogieIcfgContainer [2022-03-20 12:47:59,314 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-20 12:47:59,315 INFO L158 Benchmark]: Toolchain (without parser) took 107386.52ms. Allocated memory was 186.6MB in the beginning and 262.1MB in the end (delta: 75.5MB). Free memory was 131.6MB in the beginning and 185.3MB in the end (delta: -53.7MB). Peak memory consumption was 145.7MB. Max. memory is 8.0GB. [2022-03-20 12:47:59,315 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 186.6MB. Free memory is still 149.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-20 12:47:59,315 INFO L158 Benchmark]: CACSL2BoogieTranslator took 439.15ms. Allocated memory is still 186.6MB. Free memory was 131.4MB in the beginning and 139.6MB in the end (delta: -8.2MB). Peak memory consumption was 13.7MB. Max. memory is 8.0GB. [2022-03-20 12:47:59,315 INFO L158 Benchmark]: Boogie Preprocessor took 90.51ms. Allocated memory is still 186.6MB. Free memory was 139.6MB in the beginning and 132.7MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-03-20 12:47:59,316 INFO L158 Benchmark]: RCFGBuilder took 1501.56ms. Allocated memory was 186.6MB in the beginning and 262.1MB in the end (delta: 75.5MB). Free memory was 132.3MB in the beginning and 200.7MB in the end (delta: -68.5MB). Peak memory consumption was 58.8MB. Max. memory is 8.0GB. [2022-03-20 12:47:59,316 INFO L158 Benchmark]: TraceAbstraction took 105351.29ms. Allocated memory is still 262.1MB. Free memory was 200.2MB in the beginning and 185.3MB in the end (delta: 15.0MB). Peak memory consumption was 138.2MB. Max. memory is 8.0GB. [2022-03-20 12:47:59,320 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 186.6MB. Free memory is still 149.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 439.15ms. Allocated memory is still 186.6MB. Free memory was 131.4MB in the beginning and 139.6MB in the end (delta: -8.2MB). Peak memory consumption was 13.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 90.51ms. Allocated memory is still 186.6MB. Free memory was 139.6MB in the beginning and 132.7MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1501.56ms. Allocated memory was 186.6MB in the beginning and 262.1MB in the end (delta: 75.5MB). Free memory was 132.3MB in the beginning and 200.7MB in the end (delta: -68.5MB). Peak memory consumption was 58.8MB. Max. memory is 8.0GB. * TraceAbstraction took 105351.29ms. Allocated memory is still 262.1MB. Free memory was 200.2MB in the beginning and 185.3MB in the end (delta: 15.0MB). Peak memory consumption was 138.2MB. 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: 105.3s, OverallIterations: 26, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 61.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 25 mSolverCounterUnknown, 2598 SdHoareTripleChecker+Valid, 59.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2598 mSDsluCounter, 10848 SdHoareTripleChecker+Invalid, 57.9s 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: 1.0s 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 [2022-03-20 12:47:59,336 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...