/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/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-21 00:01:54,853 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-21 00:01:54,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-21 00:01:54,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-21 00:01:54,911 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-21 00:01:54,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-21 00:01:54,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-21 00:01:54,922 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-21 00:01:54,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-21 00:01:54,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-21 00:01:54,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-21 00:01:54,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-21 00:01:54,939 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-21 00:01:54,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-21 00:01:54,945 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-21 00:01:54,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-21 00:01:54,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-21 00:01:54,956 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-21 00:01:54,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-21 00:01:54,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-21 00:01:54,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-21 00:01:54,968 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-03-21 00:01:54,982 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-21 00:01:54,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-21 00:01:54,985 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-21 00:01:54,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-21 00:01:54,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-21 00:01:54,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-21 00:01:54,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-21 00:01:54,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-21 00:01:54,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-21 00:01:54,987 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-21 00:01:54,987 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-21 00:01:54,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-21 00:01:54,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-21 00:01:54,987 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-21 00:01:54,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-21 00:01:54,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-21 00:01:54,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-21 00:01:54,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-21 00:01:54,988 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-21 00:01:54,988 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-21 00:01:54,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-21 00:01:54,988 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-03-21 00:01:54,988 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-21 00:01:55,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-21 00:01:55,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-21 00:01:55,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-21 00:01:55,296 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-21 00:01:55,296 INFO L275 PluginConnector]: CDTParser initialized [2022-03-21 00:01:55,297 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-1.c [2022-03-21 00:01:55,359 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/732047893/0b6301febc414e07a56c8e80f653b038/FLAGbc130aeb0 [2022-03-21 00:01:55,990 INFO L306 CDTParser]: Found 1 translation units. [2022-03-21 00:01:55,990 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-1.c [2022-03-21 00:01:56,011 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/732047893/0b6301febc414e07a56c8e80f653b038/FLAGbc130aeb0 [2022-03-21 00:01:56,342 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/732047893/0b6301febc414e07a56c8e80f653b038 [2022-03-21 00:01:56,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-21 00:01:56,346 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-21 00:01:56,348 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-21 00:01:56,348 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-21 00:01:56,352 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-21 00:01:56,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.03 12:01:56" (1/1) ... [2022-03-21 00:01:56,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48daadbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:01:56, skipping insertion in model container [2022-03-21 00:01:56,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.03 12:01:56" (1/1) ... [2022-03-21 00:01:56,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-21 00:01:56,438 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-21 00:01:56,810 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-1.c[65523,65536] [2022-03-21 00:01:56,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-21 00:01:56,851 INFO L203 MainTranslator]: Completed pre-run [2022-03-21 00:01:56,932 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-1.c[65523,65536] [2022-03-21 00:01:56,935 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-21 00:01:56,950 INFO L208 MainTranslator]: Completed translation [2022-03-21 00:01:56,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:01:56 WrapperNode [2022-03-21 00:01:56,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-21 00:01:56,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-21 00:01:56,951 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-21 00:01:56,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-21 00:01:56,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:01:56" (1/1) ... [2022-03-21 00:01:56,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:01:56" (1/1) ... [2022-03-21 00:01:56,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:01:56" (1/1) ... [2022-03-21 00:01:56,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:01:56" (1/1) ... [2022-03-21 00:01:57,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:01:56" (1/1) ... [2022-03-21 00:01:57,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:01:56" (1/1) ... [2022-03-21 00:01:57,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:01:56" (1/1) ... [2022-03-21 00:01:57,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-21 00:01:57,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-21 00:01:57,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-21 00:01:57,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-21 00:01:57,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:01:56" (1/1) ... [2022-03-21 00:01:57,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-21 00:01:57,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-21 00:01:57,134 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) [2022-03-21 00:01:57,155 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 [2022-03-21 00:01:57,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-21 00:01:57,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-21 00:01:57,170 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-21 00:01:57,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2022-03-21 00:01:57,171 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2022-03-21 00:01:57,171 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-21 00:01:57,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-03-21 00:01:57,171 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-21 00:01:57,171 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-21 00:01:57,172 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-21 00:01:57,172 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-21 00:01:57,172 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-21 00:01:57,172 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-21 00:01:57,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-21 00:01:57,173 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-21 00:01:57,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-21 00:01:57,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-21 00:01:57,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-21 00:01:57,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-21 00:01:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-21 00:01:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2022-03-21 00:01:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-21 00:01:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-03-21 00:01:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2022-03-21 00:01:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-21 00:01:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-21 00:01:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-21 00:01:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-21 00:01:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-21 00:01:57,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-21 00:01:57,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-21 00:01:57,177 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-21 00:01:57,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-21 00:01:57,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-21 00:01:57,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-21 00:01:57,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-21 00:01:57,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-21 00:01:57,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-21 00:01:57,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-21 00:01:57,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-21 00:01:57,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-21 00:01:57,385 INFO L234 CfgBuilder]: Building ICFG [2022-03-21 00:01:57,387 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-21 00:01:59,383 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-21 00:01:59,862 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-03-21 00:01:59,862 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-03-21 00:01:59,873 INFO L275 CfgBuilder]: Performing block encoding [2022-03-21 00:01:59,881 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-21 00:01:59,881 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-21 00:01:59,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.03 12:01:59 BoogieIcfgContainer [2022-03-21 00:01:59,883 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-21 00:01:59,885 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-21 00:01:59,885 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-21 00:01:59,888 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-21 00:01:59,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.03 12:01:56" (1/3) ... [2022-03-21 00:01:59,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b5aeec2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.03 12:01:59, skipping insertion in model container [2022-03-21 00:01:59,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:01:56" (2/3) ... [2022-03-21 00:01:59,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b5aeec2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.03 12:01:59, skipping insertion in model container [2022-03-21 00:01:59,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.03 12:01:59" (3/3) ... [2022-03-21 00:01:59,891 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.01.i.cil-1.c [2022-03-21 00:01:59,896 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-21 00:01:59,896 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-21 00:01:59,946 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-21 00:01:59,953 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 [2022-03-21 00:01:59,953 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-21 00:01:59,973 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) [2022-03-21 00:01:59,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-03-21 00:01:59,985 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:01:59,986 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] [2022-03-21 00:01:59,986 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:01:59,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:01:59,990 INFO L85 PathProgramCache]: Analyzing trace with hash -959596949, now seen corresponding path program 1 times [2022-03-21 00:01:59,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:01:59,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1067334732] [2022-03-21 00:02:00,007 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-21 00:02:00,008 INFO L85 PathProgramCache]: Analyzing trace with hash -959596949, now seen corresponding path program 2 times [2022-03-21 00:02:00,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:02:00,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964999745] [2022-03-21 00:02:00,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:02:00,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:02:00,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:02:00,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:02:00,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:02:00,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-21 00:02:00,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:02:00,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964999745] [2022-03-21 00:02:00,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964999745] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:02:00,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:02:00,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:02:00,609 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:02:00,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1067334732] [2022-03-21 00:02:00,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1067334732] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:02:00,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:02:00,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:02:00,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791151609] [2022-03-21 00:02:00,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:02:00,618 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:02:00,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:02:00,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:02:00,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:02:00,648 INFO L87 Difference]: Start difference. First operand has 140 states, 132 states have (on average 1.6742424242424243) internal successors, (221), 133 states have internal predecessors, (221), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:02:02,689 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 [] [2022-03-21 00:02:03,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:02:03,351 INFO L93 Difference]: Finished difference Result 375 states and 621 transitions. [2022-03-21 00:02:03,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:02:03,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-03-21 00:02:03,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:02:03,362 INFO L225 Difference]: With dead ends: 375 [2022-03-21 00:02:03,362 INFO L226 Difference]: Without dead ends: 214 [2022-03-21 00:02:03,364 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 [2022-03-21 00:02:03,367 INFO L913 BasicCegarLoop]: 139 mSDtfsCounter, 141 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-21 00:02:03,367 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 405 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-03-21 00:02:03,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-03-21 00:02:03,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 144. [2022-03-21 00:02:03,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 139 states have (on average 1.5467625899280575) internal successors, (215), 139 states have internal predecessors, (215), 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) [2022-03-21 00:02:03,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 219 transitions. [2022-03-21 00:02:03,403 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 219 transitions. Word has length 30 [2022-03-21 00:02:03,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:02:03,403 INFO L478 AbstractCegarLoop]: Abstraction has 144 states and 219 transitions. [2022-03-21 00:02:03,403 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:02:03,403 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 219 transitions. [2022-03-21 00:02:03,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-03-21 00:02:03,404 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:02:03,404 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, 1] [2022-03-21 00:02:03,405 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-21 00:02:03,405 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:02:03,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:02:03,405 INFO L85 PathProgramCache]: Analyzing trace with hash 312847758, now seen corresponding path program 1 times [2022-03-21 00:02:03,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:02:03,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [670036746] [2022-03-21 00:02:03,406 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-21 00:02:03,406 INFO L85 PathProgramCache]: Analyzing trace with hash 312847758, now seen corresponding path program 2 times [2022-03-21 00:02:03,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:02:03,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671393887] [2022-03-21 00:02:03,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:02:03,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:02:03,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:02:03,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:02:03,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:02:03,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-21 00:02:03,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:02:03,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671393887] [2022-03-21 00:02:03,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671393887] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:02:03,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:02:03,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:02:03,625 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:02:03,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [670036746] [2022-03-21 00:02:03,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [670036746] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:02:03,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:02:03,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:02:03,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304609906] [2022-03-21 00:02:03,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:02:03,626 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:02:03,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:02:03,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:02:03,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:02:03,627 INFO L87 Difference]: Start difference. First operand 144 states and 219 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:02:05,639 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 [] [2022-03-21 00:02:06,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:02:06,075 INFO L93 Difference]: Finished difference Result 279 states and 426 transitions. [2022-03-21 00:02:06,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:02:06,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (3), 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 31 [2022-03-21 00:02:06,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:02:06,079 INFO L225 Difference]: With dead ends: 279 [2022-03-21 00:02:06,079 INFO L226 Difference]: Without dead ends: 148 [2022-03-21 00:02:06,080 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 [2022-03-21 00:02:06,080 INFO L913 BasicCegarLoop]: 167 mSDtfsCounter, 7 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:02:06,081 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 423 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 268 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:02:06,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-03-21 00:02:06,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 147. [2022-03-21 00:02:06,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 142 states have (on average 1.5352112676056338) internal successors, (218), 142 states have internal predecessors, (218), 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) [2022-03-21 00:02:06,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 222 transitions. [2022-03-21 00:02:06,091 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 222 transitions. Word has length 31 [2022-03-21 00:02:06,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:02:06,092 INFO L478 AbstractCegarLoop]: Abstraction has 147 states and 222 transitions. [2022-03-21 00:02:06,092 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:02:06,092 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 222 transitions. [2022-03-21 00:02:06,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-21 00:02:06,093 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:02:06,093 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:02:06,093 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-21 00:02:06,094 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:02:06,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:02:06,094 INFO L85 PathProgramCache]: Analyzing trace with hash 403410774, now seen corresponding path program 1 times [2022-03-21 00:02:06,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:02:06,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1531715956] [2022-03-21 00:02:06,095 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:02:06,095 INFO L85 PathProgramCache]: Analyzing trace with hash 403410774, now seen corresponding path program 2 times [2022-03-21 00:02:06,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:02:06,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805838287] [2022-03-21 00:02:06,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:02:06,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:02:06,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:02:06,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:02:06,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:02:06,265 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-21 00:02:06,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:02:06,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805838287] [2022-03-21 00:02:06,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805838287] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:02:06,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:02:06,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:02:06,266 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:02:06,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1531715956] [2022-03-21 00:02:06,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1531715956] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:02:06,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:02:06,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:02:06,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808108448] [2022-03-21 00:02:06,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:02:06,271 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-21 00:02:06,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:02:06,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-21 00:02:06,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:02:06,272 INFO L87 Difference]: Start difference. First operand 147 states and 222 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:02:08,280 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 [] [2022-03-21 00:02:08,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:02:08,614 INFO L93 Difference]: Finished difference Result 405 states and 622 transitions. [2022-03-21 00:02:08,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-21 00:02:08,614 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (3), 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 46 [2022-03-21 00:02:08,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:02:08,616 INFO L225 Difference]: With dead ends: 405 [2022-03-21 00:02:08,616 INFO L226 Difference]: Without dead ends: 274 [2022-03-21 00:02:08,617 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 [2022-03-21 00:02:08,618 INFO L913 BasicCegarLoop]: 168 mSDtfsCounter, 124 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-21 00:02:08,619 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 323 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 192 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-21 00:02:08,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2022-03-21 00:02:08,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2022-03-21 00:02:08,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 269 states have (on average 1.5241635687732342) internal successors, (410), 269 states have internal predecessors, (410), 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) [2022-03-21 00:02:08,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 414 transitions. [2022-03-21 00:02:08,636 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 414 transitions. Word has length 46 [2022-03-21 00:02:08,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:02:08,636 INFO L478 AbstractCegarLoop]: Abstraction has 274 states and 414 transitions. [2022-03-21 00:02:08,636 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:02:08,636 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 414 transitions. [2022-03-21 00:02:08,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-03-21 00:02:08,638 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:02:08,639 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:02:08,639 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-21 00:02:08,639 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:02:08,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:02:08,639 INFO L85 PathProgramCache]: Analyzing trace with hash 742139183, now seen corresponding path program 1 times [2022-03-21 00:02:08,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:02:08,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [472138662] [2022-03-21 00:02:08,640 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:02:08,640 INFO L85 PathProgramCache]: Analyzing trace with hash 742139183, now seen corresponding path program 2 times [2022-03-21 00:02:08,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:02:08,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142149530] [2022-03-21 00:02:08,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:02:08,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:02:08,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:02:08,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:02:08,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:02:08,888 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-21 00:02:08,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:02:08,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142149530] [2022-03-21 00:02:08,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142149530] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:02:08,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:02:08,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:02:08,889 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:02:08,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [472138662] [2022-03-21 00:02:08,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [472138662] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:02:08,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:02:08,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:02:08,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51795156] [2022-03-21 00:02:08,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:02:08,890 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:02:08,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:02:08,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:02:08,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:02:08,891 INFO L87 Difference]: Start difference. First operand 274 states and 414 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) [2022-03-21 00:02:10,903 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 [] [2022-03-21 00:02:11,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:02:11,433 INFO L93 Difference]: Finished difference Result 717 states and 1086 transitions. [2022-03-21 00:02:11,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:02:11,436 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 61 [2022-03-21 00:02:11,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:02:11,438 INFO L225 Difference]: With dead ends: 717 [2022-03-21 00:02:11,438 INFO L226 Difference]: Without dead ends: 459 [2022-03-21 00:02:11,440 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:02:11,441 INFO L913 BasicCegarLoop]: 99 mSDtfsCounter, 107 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:02:11,441 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 284 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-21 00:02:11,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2022-03-21 00:02:11,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 324. [2022-03-21 00:02:11,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 319 states have (on average 1.561128526645768) internal successors, (498), 319 states have internal predecessors, (498), 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) [2022-03-21 00:02:11,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 502 transitions. [2022-03-21 00:02:11,473 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 502 transitions. Word has length 61 [2022-03-21 00:02:11,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:02:11,475 INFO L478 AbstractCegarLoop]: Abstraction has 324 states and 502 transitions. [2022-03-21 00:02:11,475 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) [2022-03-21 00:02:11,475 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 502 transitions. [2022-03-21 00:02:11,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-03-21 00:02:11,484 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:02:11,484 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:02:11,485 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-21 00:02:11,485 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:02:11,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:02:11,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1516939404, now seen corresponding path program 1 times [2022-03-21 00:02:11,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:02:11,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [959448968] [2022-03-21 00:02:11,490 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:02:11,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1516939404, now seen corresponding path program 2 times [2022-03-21 00:02:11,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:02:11,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964542617] [2022-03-21 00:02:11,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:02:11,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:02:11,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:02:11,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:02:11,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:02:11,724 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-21 00:02:11,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:02:11,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964542617] [2022-03-21 00:02:11,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964542617] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:02:11,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:02:11,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:02:11,725 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:02:11,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [959448968] [2022-03-21 00:02:11,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [959448968] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:02:11,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:02:11,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:02:11,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131144677] [2022-03-21 00:02:11,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:02:11,731 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:02:11,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:02:11,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:02:11,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:02:11,732 INFO L87 Difference]: Start difference. First operand 324 states and 502 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:02:13,743 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 [] [2022-03-21 00:02:14,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:02:14,271 INFO L93 Difference]: Finished difference Result 817 states and 1258 transitions. [2022-03-21 00:02:14,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:02:14,272 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 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 81 [2022-03-21 00:02:14,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:02:14,275 INFO L225 Difference]: With dead ends: 817 [2022-03-21 00:02:14,276 INFO L226 Difference]: Without dead ends: 509 [2022-03-21 00:02:14,277 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:02:14,278 INFO L913 BasicCegarLoop]: 99 mSDtfsCounter, 109 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:02:14,278 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 284 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-21 00:02:14,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2022-03-21 00:02:14,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 368. [2022-03-21 00:02:14,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 363 states have (on average 1.5757575757575757) internal successors, (572), 363 states have internal predecessors, (572), 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) [2022-03-21 00:02:14,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 576 transitions. [2022-03-21 00:02:14,330 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 576 transitions. Word has length 81 [2022-03-21 00:02:14,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:02:14,332 INFO L478 AbstractCegarLoop]: Abstraction has 368 states and 576 transitions. [2022-03-21 00:02:14,332 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:02:14,333 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 576 transitions. [2022-03-21 00:02:14,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-21 00:02:14,335 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:02:14,335 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:02:14,335 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-21 00:02:14,336 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:02:14,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:02:14,336 INFO L85 PathProgramCache]: Analyzing trace with hash -295498385, now seen corresponding path program 1 times [2022-03-21 00:02:14,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:02:14,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [715261005] [2022-03-21 00:02:14,337 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:02:14,337 INFO L85 PathProgramCache]: Analyzing trace with hash -295498385, now seen corresponding path program 2 times [2022-03-21 00:02:14,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:02:14,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910945713] [2022-03-21 00:02:14,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:02:14,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:02:14,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:02:14,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:02:14,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:02:14,548 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-21 00:02:14,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:02:14,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910945713] [2022-03-21 00:02:14,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910945713] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:02:14,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:02:14,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:02:14,550 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:02:14,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [715261005] [2022-03-21 00:02:14,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [715261005] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:02:14,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:02:14,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:02:14,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271757492] [2022-03-21 00:02:14,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:02:14,551 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:02:14,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:02:14,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:02:14,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:02:14,552 INFO L87 Difference]: Start difference. First operand 368 states and 576 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:02:16,565 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 [] [2022-03-21 00:02:17,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:02:17,118 INFO L93 Difference]: Finished difference Result 855 states and 1320 transitions. [2022-03-21 00:02:17,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:02:17,119 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-03-21 00:02:17,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:02:17,121 INFO L225 Difference]: With dead ends: 855 [2022-03-21 00:02:17,121 INFO L226 Difference]: Without dead ends: 503 [2022-03-21 00:02:17,122 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:02:17,123 INFO L913 BasicCegarLoop]: 105 mSDtfsCounter, 108 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:02:17,123 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 296 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 390 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-21 00:02:17,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2022-03-21 00:02:17,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 368. [2022-03-21 00:02:17,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 363 states have (on average 1.5647382920110193) internal successors, (568), 363 states have internal predecessors, (568), 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) [2022-03-21 00:02:17,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 572 transitions. [2022-03-21 00:02:17,146 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 572 transitions. Word has length 82 [2022-03-21 00:02:17,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:02:17,146 INFO L478 AbstractCegarLoop]: Abstraction has 368 states and 572 transitions. [2022-03-21 00:02:17,146 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:02:17,147 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 572 transitions. [2022-03-21 00:02:17,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-03-21 00:02:17,148 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:02:17,148 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:02:17,148 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-21 00:02:17,148 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:02:17,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:02:17,149 INFO L85 PathProgramCache]: Analyzing trace with hash 431863133, now seen corresponding path program 1 times [2022-03-21 00:02:17,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:02:17,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1262172901] [2022-03-21 00:02:17,150 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:02:17,150 INFO L85 PathProgramCache]: Analyzing trace with hash 431863133, now seen corresponding path program 2 times [2022-03-21 00:02:17,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:02:17,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727376789] [2022-03-21 00:02:17,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:02:17,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:02:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:02:17,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:02:17,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:02:17,355 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-21 00:02:17,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:02:17,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727376789] [2022-03-21 00:02:17,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727376789] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:02:17,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:02:17,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:02:17,357 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:02:17,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1262172901] [2022-03-21 00:02:17,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1262172901] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:02:17,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:02:17,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:02:17,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743152965] [2022-03-21 00:02:17,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:02:17,358 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:02:17,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:02:17,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:02:17,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:02:17,359 INFO L87 Difference]: Start difference. First operand 368 states and 572 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:02:19,371 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 [] [2022-03-21 00:02:19,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:02:19,895 INFO L93 Difference]: Finished difference Result 581 states and 906 transitions. [2022-03-21 00:02:19,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:02:19,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2022-03-21 00:02:19,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:02:19,898 INFO L225 Difference]: With dead ends: 581 [2022-03-21 00:02:19,898 INFO L226 Difference]: Without dead ends: 403 [2022-03-21 00:02:19,899 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:02:19,900 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 31 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:02:19,900 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 490 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-21 00:02:19,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-03-21 00:02:19,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 386. [2022-03-21 00:02:19,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 381 states have (on average 1.5695538057742782) internal successors, (598), 381 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) [2022-03-21 00:02:19,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 602 transitions. [2022-03-21 00:02:19,922 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 602 transitions. Word has length 97 [2022-03-21 00:02:19,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:02:19,923 INFO L478 AbstractCegarLoop]: Abstraction has 386 states and 602 transitions. [2022-03-21 00:02:19,923 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:02:19,923 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 602 transitions. [2022-03-21 00:02:19,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-03-21 00:02:19,924 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:02:19,925 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:02:19,925 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-21 00:02:19,925 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:02:19,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:02:19,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1171691203, now seen corresponding path program 3 times [2022-03-21 00:02:19,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:02:19,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2096764208] [2022-03-21 00:02:37,324 WARN L232 SmtUtils]: Spent 13.62s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:02:46,709 WARN L232 SmtUtils]: Spent 7.26s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:02:47,765 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:02:47,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1171691203, now seen corresponding path program 4 times [2022-03-21 00:02:47,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:02:47,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652635889] [2022-03-21 00:02:47,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:02:47,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:02:47,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:02:47,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:02:47,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:02:47,973 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-03-21 00:02:47,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:02:47,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652635889] [2022-03-21 00:02:47,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652635889] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:02:47,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:02:47,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:02:47,974 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:02:47,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2096764208] [2022-03-21 00:02:47,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2096764208] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:02:47,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:02:47,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:02:47,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495967023] [2022-03-21 00:02:47,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:02:47,975 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:02:47,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:02:47,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:02:47,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:02:47,976 INFO L87 Difference]: Start difference. First operand 386 states and 602 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:02:49,988 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 [] [2022-03-21 00:02:50,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:02:50,485 INFO L93 Difference]: Finished difference Result 598 states and 934 transitions. [2022-03-21 00:02:50,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:02:50,486 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2022-03-21 00:02:50,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:02:50,488 INFO L225 Difference]: With dead ends: 598 [2022-03-21 00:02:50,488 INFO L226 Difference]: Without dead ends: 402 [2022-03-21 00:02:50,489 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:02:50,489 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 37 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:02:50,490 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 490 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 354 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-21 00:02:50,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-03-21 00:02:50,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 386. [2022-03-21 00:02:50,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 381 states have (on average 1.5669291338582678) internal successors, (597), 381 states have internal predecessors, (597), 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) [2022-03-21 00:02:50,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 601 transitions. [2022-03-21 00:02:50,510 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 601 transitions. Word has length 112 [2022-03-21 00:02:50,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:02:50,511 INFO L478 AbstractCegarLoop]: Abstraction has 386 states and 601 transitions. [2022-03-21 00:02:50,511 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:02:50,511 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 601 transitions. [2022-03-21 00:02:50,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-03-21 00:02:50,512 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:02:50,512 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:02:50,513 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-21 00:02:50,513 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:02:50,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:02:50,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1673263717, now seen corresponding path program 1 times [2022-03-21 00:02:50,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:02:50,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [961443477] [2022-03-21 00:02:56,104 WARN L232 SmtUtils]: Spent 5.59s on a formula simplification. DAG size of input: 189 DAG size of output: 186 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:03:12,846 WARN L232 SmtUtils]: Spent 11.68s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:03:20,722 WARN L232 SmtUtils]: Spent 5.34s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:03:21,730 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:03:21,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1673263717, now seen corresponding path program 2 times [2022-03-21 00:03:21,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:03:21,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621286064] [2022-03-21 00:03:21,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:03:21,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:03:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:03:21,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:03:21,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:03:21,906 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-03-21 00:03:21,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:03:21,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621286064] [2022-03-21 00:03:21,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621286064] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:03:21,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:03:21,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:03:21,907 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:03:21,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [961443477] [2022-03-21 00:03:21,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [961443477] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:03:21,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:03:21,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:03:21,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701072998] [2022-03-21 00:03:21,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:03:21,908 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:03:21,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:03:21,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:03:21,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:03:21,908 INFO L87 Difference]: Start difference. First operand 386 states and 601 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:03:23,928 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 [] [2022-03-21 00:03:24,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:03:24,437 INFO L93 Difference]: Finished difference Result 891 states and 1370 transitions. [2022-03-21 00:03:24,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:03:24,438 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2022-03-21 00:03:24,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:03:24,441 INFO L225 Difference]: With dead ends: 891 [2022-03-21 00:03:24,441 INFO L226 Difference]: Without dead ends: 521 [2022-03-21 00:03:24,443 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:03:24,443 INFO L913 BasicCegarLoop]: 105 mSDtfsCounter, 118 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:03:24,443 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 296 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 390 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-21 00:03:24,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2022-03-21 00:03:24,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 386. [2022-03-21 00:03:24,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 381 states have (on average 1.5485564304461943) internal successors, (590), 381 states have internal predecessors, (590), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:03:24,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 594 transitions. [2022-03-21 00:03:24,468 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 594 transitions. Word has length 112 [2022-03-21 00:03:24,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:03:24,468 INFO L478 AbstractCegarLoop]: Abstraction has 386 states and 594 transitions. [2022-03-21 00:03:24,469 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:03:24,469 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 594 transitions. [2022-03-21 00:03:24,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-03-21 00:03:24,470 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:03:24,470 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:03:24,471 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-21 00:03:24,471 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:03:24,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:03:24,471 INFO L85 PathProgramCache]: Analyzing trace with hash 232485930, now seen corresponding path program 1 times [2022-03-21 00:03:24,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:03:24,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1045460245] [2022-03-21 00:03:30,780 WARN L232 SmtUtils]: Spent 6.31s on a formula simplification. DAG size of input: 193 DAG size of output: 187 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:03:47,726 WARN L232 SmtUtils]: Spent 13.33s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:03:55,724 WARN L232 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:03:56,497 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:03:56,498 INFO L85 PathProgramCache]: Analyzing trace with hash 232485930, now seen corresponding path program 2 times [2022-03-21 00:03:56,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:03:56,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293853624] [2022-03-21 00:03:56,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:03:56,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:03:56,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:03:56,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:03:56,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:03:56,625 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-03-21 00:03:56,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:03:56,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293853624] [2022-03-21 00:03:56,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293853624] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:03:56,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:03:56,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:03:56,626 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:03:56,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1045460245] [2022-03-21 00:03:56,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1045460245] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:03:56,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:03:56,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:03:56,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638315605] [2022-03-21 00:03:56,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:03:56,627 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:03:56,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:03:56,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:03:56,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:03:56,627 INFO L87 Difference]: Start difference. First operand 386 states and 594 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) [2022-03-21 00:03:58,643 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 [] [2022-03-21 00:03:59,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:03:59,048 INFO L93 Difference]: Finished difference Result 891 states and 1356 transitions. [2022-03-21 00:03:59,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:03:59,048 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 113 [2022-03-21 00:03:59,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:03:59,050 INFO L225 Difference]: With dead ends: 891 [2022-03-21 00:03:59,050 INFO L226 Difference]: Without dead ends: 521 [2022-03-21 00:03:59,051 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:03:59,052 INFO L913 BasicCegarLoop]: 116 mSDtfsCounter, 116 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:03:59,052 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 318 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 402 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:03:59,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2022-03-21 00:03:59,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 386. [2022-03-21 00:03:59,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 381 states have (on average 1.5301837270341208) internal successors, (583), 381 states have internal predecessors, (583), 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) [2022-03-21 00:03:59,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 587 transitions. [2022-03-21 00:03:59,071 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 587 transitions. Word has length 113 [2022-03-21 00:03:59,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:03:59,071 INFO L478 AbstractCegarLoop]: Abstraction has 386 states and 587 transitions. [2022-03-21 00:03:59,071 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) [2022-03-21 00:03:59,072 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 587 transitions. [2022-03-21 00:03:59,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-03-21 00:03:59,073 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:03:59,073 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:03:59,073 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-21 00:03:59,073 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:03:59,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:03:59,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1244585760, now seen corresponding path program 1 times [2022-03-21 00:03:59,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:03:59,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [519468315] [2022-03-21 00:04:07,824 WARN L232 SmtUtils]: Spent 6.08s 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) [2022-03-21 00:04:20,519 WARN L232 SmtUtils]: Spent 11.42s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:04:28,041 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:04:28,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1244585760, now seen corresponding path program 2 times [2022-03-21 00:04:28,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:04:28,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488365518] [2022-03-21 00:04:28,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:04:28,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:04:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:04:28,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:04:28,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:04:28,174 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-03-21 00:04:28,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:04:28,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488365518] [2022-03-21 00:04:28,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488365518] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:04:28,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:04:28,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:04:28,175 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:04:28,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [519468315] [2022-03-21 00:04:28,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [519468315] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:04:28,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:04:28,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:04:28,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602688823] [2022-03-21 00:04:28,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:04:28,175 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:04:28,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:04:28,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:04:28,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:04:28,176 INFO L87 Difference]: Start difference. First operand 386 states and 587 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:04:30,185 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 [] [2022-03-21 00:04:30,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:04:30,635 INFO L93 Difference]: Finished difference Result 891 states and 1342 transitions. [2022-03-21 00:04:30,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:04:30,635 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 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 114 [2022-03-21 00:04:30,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:04:30,637 INFO L225 Difference]: With dead ends: 891 [2022-03-21 00:04:30,637 INFO L226 Difference]: Without dead ends: 521 [2022-03-21 00:04:30,638 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:04:30,639 INFO L913 BasicCegarLoop]: 105 mSDtfsCounter, 114 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:04:30,639 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 296 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 390 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:04:30,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2022-03-21 00:04:30,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 386. [2022-03-21 00:04:30,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 381 states have (on average 1.5118110236220472) internal successors, (576), 381 states have internal predecessors, (576), 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) [2022-03-21 00:04:30,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 580 transitions. [2022-03-21 00:04:30,680 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 580 transitions. Word has length 114 [2022-03-21 00:04:30,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:04:30,680 INFO L478 AbstractCegarLoop]: Abstraction has 386 states and 580 transitions. [2022-03-21 00:04:30,680 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:04:30,680 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 580 transitions. [2022-03-21 00:04:30,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-03-21 00:04:30,681 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:04:30,682 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:04:30,682 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-21 00:04:30,682 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:04:30,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:04:30,682 INFO L85 PathProgramCache]: Analyzing trace with hash 448198853, now seen corresponding path program 1 times [2022-03-21 00:04:30,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:04:30,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [529733509] [2022-03-21 00:04:36,036 WARN L232 SmtUtils]: Spent 5.35s on a formula simplification. DAG size of input: 203 DAG size of output: 192 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:04:54,249 WARN L232 SmtUtils]: Spent 14.25s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:05:02,111 WARN L232 SmtUtils]: Spent 5.40s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:05:02,858 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:05:02,859 INFO L85 PathProgramCache]: Analyzing trace with hash 448198853, now seen corresponding path program 2 times [2022-03-21 00:05:02,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:05:02,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588408398] [2022-03-21 00:05:02,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:05:02,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:05:02,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:05:02,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:05:02,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:05:02,995 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-03-21 00:05:02,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:05:02,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588408398] [2022-03-21 00:05:02,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588408398] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:05:02,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:05:02,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:05:02,996 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:05:02,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [529733509] [2022-03-21 00:05:02,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [529733509] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:05:02,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:05:02,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:05:02,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044724942] [2022-03-21 00:05:02,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:05:02,996 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:05:02,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:05:02,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:05:02,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:05:02,997 INFO L87 Difference]: Start difference. First operand 386 states and 580 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 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) [2022-03-21 00:05:05,008 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 [] [2022-03-21 00:05:05,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:05:05,395 INFO L93 Difference]: Finished difference Result 589 states and 888 transitions. [2022-03-21 00:05:05,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:05:05,395 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 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 115 [2022-03-21 00:05:05,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:05:05,397 INFO L225 Difference]: With dead ends: 589 [2022-03-21 00:05:05,397 INFO L226 Difference]: Without dead ends: 393 [2022-03-21 00:05:05,398 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:05:05,398 INFO L913 BasicCegarLoop]: 190 mSDtfsCounter, 22 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:05:05,398 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 470 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 328 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:05:05,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-03-21 00:05:05,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 386. [2022-03-21 00:05:05,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 381 states have (on average 1.5091863517060367) internal successors, (575), 381 states have internal predecessors, (575), 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) [2022-03-21 00:05:05,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 579 transitions. [2022-03-21 00:05:05,448 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 579 transitions. Word has length 115 [2022-03-21 00:05:05,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:05:05,448 INFO L478 AbstractCegarLoop]: Abstraction has 386 states and 579 transitions. [2022-03-21 00:05:05,449 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 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) [2022-03-21 00:05:05,449 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 579 transitions. [2022-03-21 00:05:05,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-03-21 00:05:05,450 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:05:05,450 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:05:05,450 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-21 00:05:05,450 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:05:05,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:05:05,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1965336058, now seen corresponding path program 1 times [2022-03-21 00:05:05,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:05:05,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1767282821] [2022-03-21 00:05:05,454 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:05:05,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1965336058, now seen corresponding path program 2 times [2022-03-21 00:05:05,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:05:05,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242172668] [2022-03-21 00:05:05,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:05:05,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:05:05,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:05:05,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:05:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:05:05,620 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-21 00:05:05,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:05:05,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242172668] [2022-03-21 00:05:05,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242172668] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:05:05,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:05:05,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:05:05,620 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:05:05,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1767282821] [2022-03-21 00:05:05,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1767282821] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:05:05,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:05:05,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:05:05,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321804792] [2022-03-21 00:05:05,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:05:05,621 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-21 00:05:05,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:05:05,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-21 00:05:05,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:05:05,622 INFO L87 Difference]: Start difference. First operand 386 states and 579 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:05:07,644 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 [] [2022-03-21 00:05:08,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:05:08,085 INFO L93 Difference]: Finished difference Result 775 states and 1171 transitions. [2022-03-21 00:05:08,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-21 00:05:08,086 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (3), 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 115 [2022-03-21 00:05:08,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:05:08,088 INFO L225 Difference]: With dead ends: 775 [2022-03-21 00:05:08,088 INFO L226 Difference]: Without dead ends: 579 [2022-03-21 00:05:08,089 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 [2022-03-21 00:05:08,089 INFO L913 BasicCegarLoop]: 319 mSDtfsCounter, 109 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 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 [2022-03-21 00:05:08,089 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 483 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 343 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:05:08,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2022-03-21 00:05:08,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 579. [2022-03-21 00:05:08,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 574 states have (on average 1.505226480836237) internal successors, (864), 574 states have internal predecessors, (864), 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) [2022-03-21 00:05:08,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 868 transitions. [2022-03-21 00:05:08,119 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 868 transitions. Word has length 115 [2022-03-21 00:05:08,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:05:08,119 INFO L478 AbstractCegarLoop]: Abstraction has 579 states and 868 transitions. [2022-03-21 00:05:08,119 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:05:08,120 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 868 transitions. [2022-03-21 00:05:08,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-03-21 00:05:08,121 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:05:08,121 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:05:08,121 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-21 00:05:08,121 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:05:08,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:05:08,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1912234632, now seen corresponding path program 1 times [2022-03-21 00:05:08,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:05:08,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1678285493] [2022-03-21 00:05:08,122 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:05:08,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1912234632, now seen corresponding path program 2 times [2022-03-21 00:05:08,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:05:08,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652563] [2022-03-21 00:05:08,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:05:08,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:05:08,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:05:08,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:05:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:05:08,281 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-03-21 00:05:08,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:05:08,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652563] [2022-03-21 00:05:08,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652563] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:05:08,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:05:08,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:05:08,282 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:05:08,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1678285493] [2022-03-21 00:05:08,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1678285493] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:05:08,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:05:08,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:05:08,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741771139] [2022-03-21 00:05:08,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:05:08,283 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-21 00:05:08,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:05:08,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-21 00:05:08,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:05:08,284 INFO L87 Difference]: Start difference. First operand 579 states and 868 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) [2022-03-21 00:05:10,299 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 [] [2022-03-21 00:05:10,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:05:10,605 INFO L93 Difference]: Finished difference Result 992 states and 1488 transitions. [2022-03-21 00:05:10,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-21 00:05:10,606 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 115 [2022-03-21 00:05:10,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:05:10,608 INFO L225 Difference]: With dead ends: 992 [2022-03-21 00:05:10,608 INFO L226 Difference]: Without dead ends: 603 [2022-03-21 00:05:10,610 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 [2022-03-21 00:05:10,610 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 15 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-21 00:05:10,610 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 363 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 215 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-21 00:05:10,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2022-03-21 00:05:10,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 603. [2022-03-21 00:05:10,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 598 states have (on average 1.4983277591973243) internal successors, (896), 598 states have internal predecessors, (896), 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) [2022-03-21 00:05:10,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 900 transitions. [2022-03-21 00:05:10,642 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 900 transitions. Word has length 115 [2022-03-21 00:05:10,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:05:10,642 INFO L478 AbstractCegarLoop]: Abstraction has 603 states and 900 transitions. [2022-03-21 00:05:10,642 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) [2022-03-21 00:05:10,642 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 900 transitions. [2022-03-21 00:05:10,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-03-21 00:05:10,644 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:05:10,644 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] [2022-03-21 00:05:10,644 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-21 00:05:10,644 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:05:10,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:05:10,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1619812542, now seen corresponding path program 1 times [2022-03-21 00:05:10,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:05:10,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [380779842] [2022-03-21 00:05:10,645 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:05:10,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1619812542, now seen corresponding path program 2 times [2022-03-21 00:05:10,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:05:10,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050925706] [2022-03-21 00:05:10,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:05:10,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:05:10,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:05:10,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:05:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:05:10,806 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-21 00:05:10,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:05:10,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050925706] [2022-03-21 00:05:10,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050925706] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:05:10,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:05:10,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:05:10,807 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:05:10,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [380779842] [2022-03-21 00:05:10,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [380779842] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:05:10,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:05:10,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:05:10,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470490101] [2022-03-21 00:05:10,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:05:10,808 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-21 00:05:10,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:05:10,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-21 00:05:10,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:05:10,809 INFO L87 Difference]: Start difference. First operand 603 states and 900 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) [2022-03-21 00:05:12,823 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 [] [2022-03-21 00:05:13,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:05:13,372 INFO L93 Difference]: Finished difference Result 1207 states and 1810 transitions. [2022-03-21 00:05:13,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-21 00:05:13,372 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 [2022-03-21 00:05:13,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:05:13,375 INFO L225 Difference]: With dead ends: 1207 [2022-03-21 00:05:13,376 INFO L226 Difference]: Without dead ends: 794 [2022-03-21 00:05:13,377 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 [2022-03-21 00:05:13,377 INFO L913 BasicCegarLoop]: 317 mSDtfsCounter, 126 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:05:13,377 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 481 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-21 00:05:13,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2022-03-21 00:05:13,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 794. [2022-03-21 00:05:13,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 789 states have (on average 1.4980988593155893) internal successors, (1182), 789 states have internal predecessors, (1182), 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) [2022-03-21 00:05:13,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1186 transitions. [2022-03-21 00:05:13,418 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1186 transitions. Word has length 119 [2022-03-21 00:05:13,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:05:13,419 INFO L478 AbstractCegarLoop]: Abstraction has 794 states and 1186 transitions. [2022-03-21 00:05:13,419 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) [2022-03-21 00:05:13,419 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1186 transitions. [2022-03-21 00:05:13,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-03-21 00:05:13,421 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:05:13,421 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] [2022-03-21 00:05:13,421 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-21 00:05:13,421 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:05:13,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:05:13,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1760361152, now seen corresponding path program 1 times [2022-03-21 00:05:13,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:05:13,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [386276258] [2022-03-21 00:05:13,422 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:05:13,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1760361152, now seen corresponding path program 2 times [2022-03-21 00:05:13,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:05:13,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102895477] [2022-03-21 00:05:13,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:05:13,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:05:13,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:05:13,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:05:13,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:05:13,581 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-21 00:05:13,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:05:13,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102895477] [2022-03-21 00:05:13,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102895477] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:05:13,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:05:13,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:05:13,583 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:05:13,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [386276258] [2022-03-21 00:05:13,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [386276258] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:05:13,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:05:13,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:05:13,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665752591] [2022-03-21 00:05:13,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:05:13,584 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-21 00:05:13,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:05:13,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-21 00:05:13,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:05:13,585 INFO L87 Difference]: Start difference. First operand 794 states and 1186 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) [2022-03-21 00:05:15,603 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 [] [2022-03-21 00:05:16,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:05:16,097 INFO L93 Difference]: Finished difference Result 1566 states and 2346 transitions. [2022-03-21 00:05:16,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-21 00:05:16,098 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 [2022-03-21 00:05:16,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:05:16,101 INFO L225 Difference]: With dead ends: 1566 [2022-03-21 00:05:16,101 INFO L226 Difference]: Without dead ends: 962 [2022-03-21 00:05:16,103 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 [2022-03-21 00:05:16,104 INFO L913 BasicCegarLoop]: 318 mSDtfsCounter, 130 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:05:16,104 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 482 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-21 00:05:16,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2022-03-21 00:05:16,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 962. [2022-03-21 00:05:16,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 957 states have (on average 1.4963427377220482) internal successors, (1432), 957 states have internal predecessors, (1432), 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) [2022-03-21 00:05:16,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1436 transitions. [2022-03-21 00:05:16,162 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1436 transitions. Word has length 119 [2022-03-21 00:05:16,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:05:16,162 INFO L478 AbstractCegarLoop]: Abstraction has 962 states and 1436 transitions. [2022-03-21 00:05:16,162 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) [2022-03-21 00:05:16,162 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1436 transitions. [2022-03-21 00:05:16,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-21 00:05:16,165 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:05:16,165 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:05:16,166 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-21 00:05:16,166 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:05:16,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:05:16,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1017598080, now seen corresponding path program 1 times [2022-03-21 00:05:16,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:05:16,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [417528663] [2022-03-21 00:05:16,167 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:05:16,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1017598080, now seen corresponding path program 2 times [2022-03-21 00:05:16,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:05:16,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800028838] [2022-03-21 00:05:16,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:05:16,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:05:16,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:05:16,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:05:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:05:16,345 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-03-21 00:05:16,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:05:16,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800028838] [2022-03-21 00:05:16,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800028838] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:05:16,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:05:16,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:05:16,346 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:05:16,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [417528663] [2022-03-21 00:05:16,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [417528663] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:05:16,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:05:16,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:05:16,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460171865] [2022-03-21 00:05:16,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:05:16,346 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:05:16,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:05:16,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:05:16,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:05:16,347 INFO L87 Difference]: Start difference. First operand 962 states and 1436 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:05:18,358 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 [] [2022-03-21 00:05:18,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:05:18,857 INFO L93 Difference]: Finished difference Result 2011 states and 2974 transitions. [2022-03-21 00:05:18,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:05:18,858 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 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 182 [2022-03-21 00:05:18,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:05:18,863 INFO L225 Difference]: With dead ends: 2011 [2022-03-21 00:05:18,863 INFO L226 Difference]: Without dead ends: 1065 [2022-03-21 00:05:18,865 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:05:18,866 INFO L913 BasicCegarLoop]: 212 mSDtfsCounter, 41 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:05:18,866 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 515 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 403 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:05:18,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2022-03-21 00:05:18,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 962. [2022-03-21 00:05:18,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 957 states have (on average 1.4921630094043887) internal successors, (1428), 957 states have internal predecessors, (1428), 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) [2022-03-21 00:05:18,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1432 transitions. [2022-03-21 00:05:18,911 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1432 transitions. Word has length 182 [2022-03-21 00:05:18,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:05:18,911 INFO L478 AbstractCegarLoop]: Abstraction has 962 states and 1432 transitions. [2022-03-21 00:05:18,912 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:05:18,912 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1432 transitions. [2022-03-21 00:05:18,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-21 00:05:18,915 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:05:18,915 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:05:18,915 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-21 00:05:18,916 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:05:18,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:05:18,916 INFO L85 PathProgramCache]: Analyzing trace with hash -874581490, now seen corresponding path program 3 times [2022-03-21 00:05:18,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:05:18,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [210512570] [2022-03-21 00:05:46,579 WARN L232 SmtUtils]: Spent 23.77s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:05:54,295 WARN L232 SmtUtils]: Spent 5.70s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:05:56,247 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:05:56,247 INFO L85 PathProgramCache]: Analyzing trace with hash -874581490, now seen corresponding path program 4 times [2022-03-21 00:05:56,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:05:56,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255113652] [2022-03-21 00:05:56,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:05:56,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:05:56,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:05:56,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:05:56,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:05:56,413 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 225 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-03-21 00:05:56,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:05:56,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255113652] [2022-03-21 00:05:56,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255113652] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:05:56,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:05:56,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:05:56,413 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:05:56,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [210512570] [2022-03-21 00:05:56,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [210512570] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:05:56,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:05:56,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:05:56,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599021375] [2022-03-21 00:05:56,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:05:56,414 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:05:56,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:05:56,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:05:56,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:05:56,415 INFO L87 Difference]: Start difference. First operand 962 states and 1432 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:05:58,425 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:05:58,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:05:58,857 INFO L93 Difference]: Finished difference Result 2368 states and 3493 transitions. [2022-03-21 00:05:58,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:05:58,857 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 197 [2022-03-21 00:05:58,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:05:58,862 INFO L225 Difference]: With dead ends: 2368 [2022-03-21 00:05:58,862 INFO L226 Difference]: Without dead ends: 1422 [2022-03-21 00:05:58,863 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 [2022-03-21 00:05:58,864 INFO L913 BasicCegarLoop]: 106 mSDtfsCounter, 108 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:05:58,864 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 298 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 393 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:05:58,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1422 states. [2022-03-21 00:05:58,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1422 to 1067. [2022-03-21 00:05:58,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 1062 states have (on average 1.4868173258003767) internal successors, (1579), 1062 states have internal predecessors, (1579), 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) [2022-03-21 00:05:58,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1583 transitions. [2022-03-21 00:05:58,908 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1583 transitions. Word has length 197 [2022-03-21 00:05:58,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:05:58,908 INFO L478 AbstractCegarLoop]: Abstraction has 1067 states and 1583 transitions. [2022-03-21 00:05:58,908 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:05:58,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1583 transitions. [2022-03-21 00:05:58,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-21 00:05:58,910 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:05:58,910 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:05:58,910 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-21 00:05:58,911 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:05:58,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:05:58,911 INFO L85 PathProgramCache]: Analyzing trace with hash -448026992, now seen corresponding path program 1 times [2022-03-21 00:05:58,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:05:58,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1842308349] [2022-03-21 00:06:17,271 WARN L232 SmtUtils]: Spent 15.78s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:06:25,874 WARN L232 SmtUtils]: Spent 6.76s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:06:28,241 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:06:28,241 INFO L85 PathProgramCache]: Analyzing trace with hash -448026992, now seen corresponding path program 2 times [2022-03-21 00:06:28,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:06:28,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211712319] [2022-03-21 00:06:28,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:06:28,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:06:28,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:06:28,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:06:28,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:06:28,420 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 231 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-21 00:06:28,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:06:28,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211712319] [2022-03-21 00:06:28,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211712319] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:06:28,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:06:28,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:06:28,421 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:06:28,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1842308349] [2022-03-21 00:06:28,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1842308349] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:06:28,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:06:28,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:06:28,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440393477] [2022-03-21 00:06:28,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:06:28,421 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:06:28,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:06:28,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:06:28,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:06:28,422 INFO L87 Difference]: Start difference. First operand 1067 states and 1583 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:06:30,430 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 [] [2022-03-21 00:06:30,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:06:30,820 INFO L93 Difference]: Finished difference Result 2443 states and 3595 transitions. [2022-03-21 00:06:30,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:06:30,820 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 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 197 [2022-03-21 00:06:30,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:06:30,824 INFO L225 Difference]: With dead ends: 2443 [2022-03-21 00:06:30,824 INFO L226 Difference]: Without dead ends: 1392 [2022-03-21 00:06:30,826 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:06:30,826 INFO L913 BasicCegarLoop]: 112 mSDtfsCounter, 108 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-21 00:06:30,826 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 314 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 387 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-21 00:06:30,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2022-03-21 00:06:30,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1067. [2022-03-21 00:06:30,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 1062 states have (on average 1.4689265536723164) internal successors, (1560), 1062 states have internal predecessors, (1560), 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) [2022-03-21 00:06:30,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1564 transitions. [2022-03-21 00:06:30,876 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1564 transitions. Word has length 197 [2022-03-21 00:06:30,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:06:30,876 INFO L478 AbstractCegarLoop]: Abstraction has 1067 states and 1564 transitions. [2022-03-21 00:06:30,876 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:06:30,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1564 transitions. [2022-03-21 00:06:30,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-03-21 00:06:30,878 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:06:30,878 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:06:30,879 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-21 00:06:30,879 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:06:30,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:06:30,879 INFO L85 PathProgramCache]: Analyzing trace with hash 356385574, now seen corresponding path program 1 times [2022-03-21 00:06:30,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:06:30,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [998576171] [2022-03-21 00:06:51,004 WARN L232 SmtUtils]: Spent 11.44s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:06:59,330 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:06:59,330 INFO L85 PathProgramCache]: Analyzing trace with hash 356385574, now seen corresponding path program 2 times [2022-03-21 00:06:59,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:06:59,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015505072] [2022-03-21 00:06:59,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:06:59,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:06:59,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:06:59,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:06:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:06:59,492 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-21 00:06:59,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:06:59,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015505072] [2022-03-21 00:06:59,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015505072] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:06:59,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:06:59,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:06:59,492 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:06:59,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [998576171] [2022-03-21 00:06:59,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [998576171] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:06:59,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:06:59,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:06:59,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760999974] [2022-03-21 00:06:59,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:06:59,493 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:06:59,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:06:59,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:06:59,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:06:59,494 INFO L87 Difference]: Start difference. First operand 1067 states and 1564 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:01,502 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 [] [2022-03-21 00:07:01,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:07:01,874 INFO L93 Difference]: Finished difference Result 2181 states and 3182 transitions. [2022-03-21 00:07:01,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:07:01,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 200 [2022-03-21 00:07:01,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:07:01,878 INFO L225 Difference]: With dead ends: 2181 [2022-03-21 00:07:01,878 INFO L226 Difference]: Without dead ends: 1130 [2022-03-21 00:07:01,880 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:07:01,880 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 40 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-21 00:07:01,881 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 499 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 372 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-21 00:07:01,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1130 states. [2022-03-21 00:07:01,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1130 to 1067. [2022-03-21 00:07:01,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 1062 states have (on average 1.4651600753295668) internal successors, (1556), 1062 states have internal predecessors, (1556), 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) [2022-03-21 00:07:01,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1560 transitions. [2022-03-21 00:07:01,926 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1560 transitions. Word has length 200 [2022-03-21 00:07:01,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:07:01,926 INFO L478 AbstractCegarLoop]: Abstraction has 1067 states and 1560 transitions. [2022-03-21 00:07:01,926 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:01,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1560 transitions. [2022-03-21 00:07:01,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-03-21 00:07:01,928 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:07:01,928 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:07:01,928 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-21 00:07:01,928 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:07:01,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:07:01,929 INFO L85 PathProgramCache]: Analyzing trace with hash -144707799, now seen corresponding path program 1 times [2022-03-21 00:07:01,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:01,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [483377599] [2022-03-21 00:07:17,122 WARN L232 SmtUtils]: Spent 12.57s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:07:26,614 WARN L232 SmtUtils]: Spent 7.20s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:07:35,030 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:07:35,030 INFO L85 PathProgramCache]: Analyzing trace with hash -144707799, now seen corresponding path program 2 times [2022-03-21 00:07:35,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:07:35,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795135352] [2022-03-21 00:07:35,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:07:35,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:07:35,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:35,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:07:35,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:35,189 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 301 proven. 1 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-03-21 00:07:35,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:07:35,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795135352] [2022-03-21 00:07:35,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795135352] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-21 00:07:35,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625943904] [2022-03-21 00:07:35,190 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-21 00:07:35,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-21 00:07:35,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-21 00:07:35,191 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-21 00:07:35,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-21 00:08:08,101 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-21 00:08:08,101 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-21 00:08:08,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 1629 conjuncts, 23 conjunts are in the unsatisfiable core [2022-03-21 00:08:08,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-21 00:08:08,225 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-03-21 00:08:08,226 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 143 [2022-03-21 00:08:08,229 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 63 [2022-03-21 00:08:08,248 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-21 00:08:08,256 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-21 00:08:08,383 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2022-03-21 00:08:08,386 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-03-21 00:08:08,517 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-03-21 00:08:08,525 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2022-03-21 00:08:08,527 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-03-21 00:08:08,559 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-21 00:08:08,559 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-21 00:08:08,647 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-21 00:08:08,647 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-21 00:08:08,685 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-21 00:08:08,797 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 267 proven. 40 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-03-21 00:08:08,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-21 00:08:08,849 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-03-21 00:08:09,096 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 273 proven. 15 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2022-03-21 00:08:09,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625943904] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-21 00:08:09,096 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-21 00:08:09,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 7] total 14 [2022-03-21 00:08:09,097 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:08:09,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [483377599] [2022-03-21 00:08:09,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [483377599] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:09,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:09,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-21 00:08:09,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166468876] [2022-03-21 00:08:09,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:08:09,098 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-21 00:08:09,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:09,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-21 00:08:09,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-21 00:08:09,098 INFO L87 Difference]: Start difference. First operand 1067 states and 1560 transitions. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 5 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:11,107 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 [] [2022-03-21 00:08:11,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:08:11,858 INFO L93 Difference]: Finished difference Result 3029 states and 4435 transitions. [2022-03-21 00:08:11,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-21 00:08:11,858 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 5 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 200 [2022-03-21 00:08:11,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:08:11,863 INFO L225 Difference]: With dead ends: 3029 [2022-03-21 00:08:11,863 INFO L226 Difference]: Without dead ends: 1978 [2022-03-21 00:08:11,865 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 397 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-03-21 00:08:11,866 INFO L913 BasicCegarLoop]: 247 mSDtfsCounter, 92 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 24 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-21 00:08:11,866 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 756 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 710 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-03-21 00:08:11,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2022-03-21 00:08:11,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 1901. [2022-03-21 00:08:11,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1901 states, 1896 states have (on average 1.47415611814346) internal successors, (2795), 1896 states have internal predecessors, (2795), 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) [2022-03-21 00:08:11,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1901 states to 1901 states and 2799 transitions. [2022-03-21 00:08:11,956 INFO L78 Accepts]: Start accepts. Automaton has 1901 states and 2799 transitions. Word has length 200 [2022-03-21 00:08:11,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:08:11,956 INFO L478 AbstractCegarLoop]: Abstraction has 1901 states and 2799 transitions. [2022-03-21 00:08:11,956 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 5 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:11,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1901 states and 2799 transitions. [2022-03-21 00:08:11,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-03-21 00:08:11,960 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:08:11,960 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:08:11,994 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-21 00:08:12,167 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-03-21 00:08:12,168 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:08:12,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:08:12,168 INFO L85 PathProgramCache]: Analyzing trace with hash -730984021, now seen corresponding path program 1 times [2022-03-21 00:08:12,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:12,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [403507355] [2022-03-21 00:08:35,103 WARN L232 SmtUtils]: Spent 20.62s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:08:47,872 WARN L232 SmtUtils]: Spent 9.67s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:09:00,572 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:09:00,573 INFO L85 PathProgramCache]: Analyzing trace with hash -730984021, now seen corresponding path program 2 times [2022-03-21 00:09:00,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:09:00,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446477200] [2022-03-21 00:09:00,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:09:00,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:09:00,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:00,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:09:00,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:00,763 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 274 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-21 00:09:00,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:09:00,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446477200] [2022-03-21 00:09:00,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446477200] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:00,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:00,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:09:00,766 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:09:00,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [403507355] [2022-03-21 00:09:00,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [403507355] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:00,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:00,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:09:00,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152819589] [2022-03-21 00:09:00,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:09:00,767 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:09:00,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:00,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:09:00,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:09:00,767 INFO L87 Difference]: Start difference. First operand 1901 states and 2799 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:02,778 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 [] [2022-03-21 00:09:03,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:09:03,349 INFO L93 Difference]: Finished difference Result 4370 states and 6396 transitions. [2022-03-21 00:09:03,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:09:03,351 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 200 [2022-03-21 00:09:03,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:09:03,359 INFO L225 Difference]: With dead ends: 4370 [2022-03-21 00:09:03,360 INFO L226 Difference]: Without dead ends: 2485 [2022-03-21 00:09:03,364 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:09:03,364 INFO L913 BasicCegarLoop]: 107 mSDtfsCounter, 107 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:09:03,364 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 302 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 393 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:09:03,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2485 states. [2022-03-21 00:09:03,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2485 to 1901. [2022-03-21 00:09:03,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1901 states, 1896 states have (on average 1.4567510548523206) internal successors, (2762), 1896 states have internal predecessors, (2762), 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) [2022-03-21 00:09:03,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1901 states to 1901 states and 2766 transitions. [2022-03-21 00:09:03,491 INFO L78 Accepts]: Start accepts. Automaton has 1901 states and 2766 transitions. Word has length 200 [2022-03-21 00:09:03,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:09:03,491 INFO L478 AbstractCegarLoop]: Abstraction has 1901 states and 2766 transitions. [2022-03-21 00:09:03,491 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:03,491 INFO L276 IsEmpty]: Start isEmpty. Operand 1901 states and 2766 transitions. [2022-03-21 00:09:03,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-03-21 00:09:03,495 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:09:03,496 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:09:03,496 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-21 00:09:03,496 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:09:03,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:09:03,497 INFO L85 PathProgramCache]: Analyzing trace with hash -234182702, now seen corresponding path program 1 times [2022-03-21 00:09:03,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:03,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1245007227] [2022-03-21 00:09:20,681 WARN L232 SmtUtils]: Spent 14.08s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:09:28,668 WARN L232 SmtUtils]: Spent 5.16s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:09:37,831 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:09:37,831 INFO L85 PathProgramCache]: Analyzing trace with hash -234182702, now seen corresponding path program 2 times [2022-03-21 00:09:37,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:09:37,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080588052] [2022-03-21 00:09:37,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:09:37,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:09:37,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:37,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:09:37,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:37,969 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 279 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-21 00:09:37,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:09:37,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080588052] [2022-03-21 00:09:37,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080588052] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:37,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:37,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:09:37,969 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:09:37,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1245007227] [2022-03-21 00:09:37,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1245007227] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:37,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:37,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:09:37,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027370013] [2022-03-21 00:09:37,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:09:37,970 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:09:37,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:37,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:09:37,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:09:37,971 INFO L87 Difference]: Start difference. First operand 1901 states and 2766 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:39,979 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 [] [2022-03-21 00:09:40,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:09:40,405 INFO L93 Difference]: Finished difference Result 3878 states and 5617 transitions. [2022-03-21 00:09:40,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:09:40,405 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 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 201 [2022-03-21 00:09:40,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:09:40,411 INFO L225 Difference]: With dead ends: 3878 [2022-03-21 00:09:40,411 INFO L226 Difference]: Without dead ends: 1993 [2022-03-21 00:09:40,413 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:09:40,413 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 30 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-21 00:09:40,414 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 489 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 356 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-21 00:09:40,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1993 states. [2022-03-21 00:09:40,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1993 to 1901. [2022-03-21 00:09:40,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1901 states, 1896 states have (on average 1.4525316455696202) internal successors, (2754), 1896 states have internal predecessors, (2754), 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) [2022-03-21 00:09:40,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1901 states to 1901 states and 2758 transitions. [2022-03-21 00:09:40,514 INFO L78 Accepts]: Start accepts. Automaton has 1901 states and 2758 transitions. Word has length 201 [2022-03-21 00:09:40,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:09:40,515 INFO L478 AbstractCegarLoop]: Abstraction has 1901 states and 2758 transitions. [2022-03-21 00:09:40,515 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:40,515 INFO L276 IsEmpty]: Start isEmpty. Operand 1901 states and 2758 transitions. [2022-03-21 00:09:40,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-03-21 00:09:40,518 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:09:40,518 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:09:40,518 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-21 00:09:40,519 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:09:40,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:09:40,519 INFO L85 PathProgramCache]: Analyzing trace with hash 232338556, now seen corresponding path program 1 times [2022-03-21 00:09:40,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:40,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1082840662] [2022-03-21 00:09:51,644 WARN L232 SmtUtils]: Spent 8.60s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:10:07,826 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:10:07,826 INFO L85 PathProgramCache]: Analyzing trace with hash 232338556, now seen corresponding path program 2 times [2022-03-21 00:10:07,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:10:07,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20814482] [2022-03-21 00:10:07,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:10:07,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:10:07,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:07,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:10:07,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:07,980 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 286 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-21 00:10:07,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:10:07,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20814482] [2022-03-21 00:10:07,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20814482] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:07,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:07,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:10:07,981 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:10:07,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1082840662] [2022-03-21 00:10:07,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1082840662] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:07,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:07,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:10:07,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648450598] [2022-03-21 00:10:07,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:10:07,983 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:10:07,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:07,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:10:07,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:10:07,983 INFO L87 Difference]: Start difference. First operand 1901 states and 2758 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:09,996 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 [] [2022-03-21 00:10:10,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:10:10,448 INFO L93 Difference]: Finished difference Result 3836 states and 5549 transitions. [2022-03-21 00:10:10,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:10:10,449 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 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 201 [2022-03-21 00:10:10,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:10:10,454 INFO L225 Difference]: With dead ends: 3836 [2022-03-21 00:10:10,455 INFO L226 Difference]: Without dead ends: 1951 [2022-03-21 00:10:10,458 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:10:10,458 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 21 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-21 00:10:10,459 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 477 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 343 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-21 00:10:10,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1951 states. [2022-03-21 00:10:10,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1951 to 1901. [2022-03-21 00:10:10,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1901 states, 1896 states have (on average 1.4483122362869199) internal successors, (2746), 1896 states have internal predecessors, (2746), 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) [2022-03-21 00:10:10,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1901 states to 1901 states and 2750 transitions. [2022-03-21 00:10:10,588 INFO L78 Accepts]: Start accepts. Automaton has 1901 states and 2750 transitions. Word has length 201 [2022-03-21 00:10:10,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:10:10,588 INFO L478 AbstractCegarLoop]: Abstraction has 1901 states and 2750 transitions. [2022-03-21 00:10:10,589 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:10,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1901 states and 2750 transitions. [2022-03-21 00:10:10,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-03-21 00:10:10,592 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:10:10,592 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:10:10,592 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-21 00:10:10,593 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:10:10,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:10:10,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1003216029, now seen corresponding path program 1 times [2022-03-21 00:10:10,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:10,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1223247354] [2022-03-21 00:10:10,594 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:10:10,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1003216029, now seen corresponding path program 2 times [2022-03-21 00:10:10,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:10:10,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099431327] [2022-03-21 00:10:10,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:10:10,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:10:10,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:10,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:10:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:10,772 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-03-21 00:10:10,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:10:10,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099431327] [2022-03-21 00:10:10,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099431327] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:10,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:10,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:10:10,773 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:10:10,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1223247354] [2022-03-21 00:10:10,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1223247354] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:10,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:10,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:10:10,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755399766] [2022-03-21 00:10:10,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:10:10,773 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:10:10,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:10,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:10:10,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:10:10,774 INFO L87 Difference]: Start difference. First operand 1901 states and 2750 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:12,782 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 [] [2022-03-21 00:10:13,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:10:13,297 INFO L93 Difference]: Finished difference Result 4196 states and 6030 transitions. [2022-03-21 00:10:13,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:10:13,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 204 [2022-03-21 00:10:13,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:10:13,304 INFO L225 Difference]: With dead ends: 4196 [2022-03-21 00:10:13,304 INFO L226 Difference]: Without dead ends: 2311 [2022-03-21 00:10:13,308 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 [2022-03-21 00:10:13,308 INFO L913 BasicCegarLoop]: 210 mSDtfsCounter, 41 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:10:13,308 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 512 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 422 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:10:13,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2311 states. [2022-03-21 00:10:13,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2311 to 2133. [2022-03-21 00:10:13,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2133 states, 2128 states have (on average 1.4445488721804511) internal successors, (3074), 2128 states have internal predecessors, (3074), 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) [2022-03-21 00:10:13,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2133 states to 2133 states and 3078 transitions. [2022-03-21 00:10:13,449 INFO L78 Accepts]: Start accepts. Automaton has 2133 states and 3078 transitions. Word has length 204 [2022-03-21 00:10:13,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:10:13,449 INFO L478 AbstractCegarLoop]: Abstraction has 2133 states and 3078 transitions. [2022-03-21 00:10:13,449 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:13,449 INFO L276 IsEmpty]: Start isEmpty. Operand 2133 states and 3078 transitions. [2022-03-21 00:10:13,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-03-21 00:10:13,454 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:10:13,454 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:10:13,454 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-21 00:10:13,454 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:10:13,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:10:13,454 INFO L85 PathProgramCache]: Analyzing trace with hash 958358629, now seen corresponding path program 1 times [2022-03-21 00:10:13,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:13,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1372695287] [2022-03-21 00:10:13,455 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:10:13,455 INFO L85 PathProgramCache]: Analyzing trace with hash 958358629, now seen corresponding path program 2 times [2022-03-21 00:10:13,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:10:13,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911643739] [2022-03-21 00:10:13,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:10:13,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:10:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:13,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:10:13,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:13,628 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-03-21 00:10:13,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:10:13,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911643739] [2022-03-21 00:10:13,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911643739] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:13,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:13,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:10:13,628 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:10:13,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1372695287] [2022-03-21 00:10:13,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1372695287] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:13,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:13,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:10:13,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555204436] [2022-03-21 00:10:13,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:10:13,629 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:10:13,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:13,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:10:13,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:10:13,630 INFO L87 Difference]: Start difference. First operand 2133 states and 3078 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:15,639 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 [] [2022-03-21 00:10:16,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:10:16,204 INFO L93 Difference]: Finished difference Result 4819 states and 6926 transitions. [2022-03-21 00:10:16,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:10:16,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 204 [2022-03-21 00:10:16,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:10:16,212 INFO L225 Difference]: With dead ends: 4819 [2022-03-21 00:10:16,212 INFO L226 Difference]: Without dead ends: 2702 [2022-03-21 00:10:16,215 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 [2022-03-21 00:10:16,216 INFO L913 BasicCegarLoop]: 216 mSDtfsCounter, 47 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:10:16,216 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 524 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 449 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:10:16,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2702 states. [2022-03-21 00:10:16,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2702 to 2453. [2022-03-21 00:10:16,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2453 states, 2448 states have (on average 1.451797385620915) internal successors, (3554), 2448 states have internal predecessors, (3554), 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) [2022-03-21 00:10:16,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2453 states to 2453 states and 3558 transitions. [2022-03-21 00:10:16,376 INFO L78 Accepts]: Start accepts. Automaton has 2453 states and 3558 transitions. Word has length 204 [2022-03-21 00:10:16,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:10:16,376 INFO L478 AbstractCegarLoop]: Abstraction has 2453 states and 3558 transitions. [2022-03-21 00:10:16,376 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:16,376 INFO L276 IsEmpty]: Start isEmpty. Operand 2453 states and 3558 transitions. [2022-03-21 00:10:16,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-03-21 00:10:16,380 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:10:16,380 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:10:16,380 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-21 00:10:16,381 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:10:16,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:10:16,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1208886526, now seen corresponding path program 1 times [2022-03-21 00:10:16,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:16,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1035250880] [2022-03-21 00:10:46,829 WARN L232 SmtUtils]: Spent 30.09s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:10:57,165 WARN L232 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:11:04,649 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:11:04,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1208886526, now seen corresponding path program 2 times [2022-03-21 00:11:04,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:11:04,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139520732] [2022-03-21 00:11:04,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:11:04,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:11:04,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:11:04,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:11:04,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:11:04,855 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 321 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-03-21 00:11:04,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:11:04,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139520732] [2022-03-21 00:11:04,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139520732] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:11:04,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:11:04,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:11:04,856 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:11:04,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1035250880] [2022-03-21 00:11:04,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1035250880] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:11:04,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:11:04,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:11:04,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996693100] [2022-03-21 00:11:04,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:11:04,856 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:11:04,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:11:04,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:11:04,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:11:04,857 INFO L87 Difference]: Start difference. First operand 2453 states and 3558 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:11:06,868 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 [] [2022-03-21 00:11:07,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:11:07,538 INFO L93 Difference]: Finished difference Result 5030 states and 7262 transitions. [2022-03-21 00:11:07,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:11:07,538 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 207 [2022-03-21 00:11:07,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:11:07,546 INFO L225 Difference]: With dead ends: 5030 [2022-03-21 00:11:07,546 INFO L226 Difference]: Without dead ends: 2593 [2022-03-21 00:11:07,551 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 [2022-03-21 00:11:07,552 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 41 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:11:07,552 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 502 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 407 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:11:07,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2593 states. [2022-03-21 00:11:07,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2593 to 2453. [2022-03-21 00:11:07,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2453 states, 2448 states have (on average 1.4485294117647058) internal successors, (3546), 2448 states have internal predecessors, (3546), 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) [2022-03-21 00:11:07,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2453 states to 2453 states and 3550 transitions. [2022-03-21 00:11:07,749 INFO L78 Accepts]: Start accepts. Automaton has 2453 states and 3550 transitions. Word has length 207 [2022-03-21 00:11:07,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:11:07,749 INFO L478 AbstractCegarLoop]: Abstraction has 2453 states and 3550 transitions. [2022-03-21 00:11:07,750 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:11:07,750 INFO L276 IsEmpty]: Start isEmpty. Operand 2453 states and 3550 transitions. [2022-03-21 00:11:07,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-03-21 00:11:07,755 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:11:07,755 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:11:07,755 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-21 00:11:07,755 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:11:07,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:11:07,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1263279424, now seen corresponding path program 1 times [2022-03-21 00:11:07,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:11:07,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [233887951] [2022-03-21 00:11:35,311 WARN L232 SmtUtils]: Spent 27.11s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:11:47,013 WARN L232 SmtUtils]: Spent 8.97s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:11:56,473 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:11:56,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1263279424, now seen corresponding path program 2 times [2022-03-21 00:11:56,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:11:56,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269804483] [2022-03-21 00:11:56,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:11:56,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:11:56,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:11:56,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:11:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:11:56,729 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 321 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-03-21 00:11:56,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:11:56,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269804483] [2022-03-21 00:11:56,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269804483] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:11:56,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:11:56,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:11:56,730 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:11:56,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [233887951] [2022-03-21 00:11:56,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [233887951] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:11:56,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:11:56,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:11:56,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307668909] [2022-03-21 00:11:56,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:11:56,731 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:11:56,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:11:56,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:11:56,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:11:56,731 INFO L87 Difference]: Start difference. First operand 2453 states and 3550 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:11:58,747 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 [] [2022-03-21 00:11:59,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:11:59,444 INFO L93 Difference]: Finished difference Result 5091 states and 7320 transitions. [2022-03-21 00:11:59,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:11:59,445 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 207 [2022-03-21 00:11:59,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:11:59,451 INFO L225 Difference]: With dead ends: 5091 [2022-03-21 00:11:59,451 INFO L226 Difference]: Without dead ends: 2654 [2022-03-21 00:11:59,455 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:11:59,455 INFO L913 BasicCegarLoop]: 211 mSDtfsCounter, 51 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:11:59,455 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 514 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 434 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-21 00:11:59,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2654 states. [2022-03-21 00:11:59,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2654 to 2453. [2022-03-21 00:11:59,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2453 states, 2448 states have (on average 1.4444444444444444) internal successors, (3536), 2448 states have internal predecessors, (3536), 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) [2022-03-21 00:11:59,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2453 states to 2453 states and 3540 transitions. [2022-03-21 00:11:59,651 INFO L78 Accepts]: Start accepts. Automaton has 2453 states and 3540 transitions. Word has length 207 [2022-03-21 00:11:59,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:11:59,652 INFO L478 AbstractCegarLoop]: Abstraction has 2453 states and 3540 transitions. [2022-03-21 00:11:59,652 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:11:59,652 INFO L276 IsEmpty]: Start isEmpty. Operand 2453 states and 3540 transitions. [2022-03-21 00:11:59,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-03-21 00:11:59,657 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:11:59,657 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:11:59,657 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-21 00:11:59,657 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:11:59,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:11:59,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1538011467, now seen corresponding path program 1 times [2022-03-21 00:11:59,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:11:59,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [281269031] [2022-03-21 00:12:07,978 WARN L232 SmtUtils]: Spent 8.32s on a formula simplification. DAG size of input: 203 DAG size of output: 192 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:12:45,546 WARN L232 SmtUtils]: Spent 32.24s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:12:54,942 WARN L232 SmtUtils]: Spent 5.95s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:12:57,664 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:12:57,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1538011467, now seen corresponding path program 2 times [2022-03-21 00:12:57,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:12:57,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744978055] [2022-03-21 00:12:57,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:12:57,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:12:57,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:12:57,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:12:57,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:12:57,845 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 289 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2022-03-21 00:12:57,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:12:57,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744978055] [2022-03-21 00:12:57,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744978055] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:12:57,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:12:57,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:12:57,846 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:12:57,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [281269031] [2022-03-21 00:12:57,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [281269031] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:12:57,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:12:57,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:12:57,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658079696] [2022-03-21 00:12:57,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:12:57,846 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:12:57,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:12:57,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:12:57,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:12:57,847 INFO L87 Difference]: Start difference. First operand 2453 states and 3540 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:12:59,872 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 [] [2022-03-21 00:13:00,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:13:00,535 INFO L93 Difference]: Finished difference Result 4994 states and 7182 transitions. [2022-03-21 00:13:00,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:13:00,536 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 222 [2022-03-21 00:13:00,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:13:00,543 INFO L225 Difference]: With dead ends: 4994 [2022-03-21 00:13:00,543 INFO L226 Difference]: Without dead ends: 2557 [2022-03-21 00:13:00,548 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 [2022-03-21 00:13:00,549 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 39 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:13:00,549 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 488 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:13:00,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2557 states. [2022-03-21 00:13:00,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2557 to 2453. [2022-03-21 00:13:00,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2453 states, 2448 states have (on average 1.4411764705882353) internal successors, (3528), 2448 states have internal predecessors, (3528), 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) [2022-03-21 00:13:00,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2453 states to 2453 states and 3532 transitions. [2022-03-21 00:13:00,764 INFO L78 Accepts]: Start accepts. Automaton has 2453 states and 3532 transitions. Word has length 222 [2022-03-21 00:13:00,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:13:00,765 INFO L478 AbstractCegarLoop]: Abstraction has 2453 states and 3532 transitions. [2022-03-21 00:13:00,765 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:13:00,765 INFO L276 IsEmpty]: Start isEmpty. Operand 2453 states and 3532 transitions. [2022-03-21 00:13:00,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-03-21 00:13:00,770 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:13:00,770 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:13:00,770 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-21 00:13:00,770 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:13:00,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:13:00,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1778251213, now seen corresponding path program 1 times [2022-03-21 00:13:00,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:13:00,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [381754517] [2022-03-21 00:13:07,191 WARN L232 SmtUtils]: Spent 6.42s on a formula simplification. DAG size of input: 203 DAG size of output: 192 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:13:27,475 WARN L232 SmtUtils]: Spent 16.22s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:13:36,134 WARN L232 SmtUtils]: Spent 6.69s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:13:39,684 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:13:39,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1778251213, now seen corresponding path program 2 times [2022-03-21 00:13:39,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:13:39,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991938039] [2022-03-21 00:13:39,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:13:39,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:13:39,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:13:39,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:13:39,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:13:39,951 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 289 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2022-03-21 00:13:39,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:13:39,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991938039] [2022-03-21 00:13:39,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991938039] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:13:39,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:13:39,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:13:39,952 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:13:39,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [381754517] [2022-03-21 00:13:39,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [381754517] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:13:39,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:13:39,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:13:39,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174705838] [2022-03-21 00:13:39,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:13:39,953 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:13:39,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:13:39,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:13:39,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:13:39,954 INFO L87 Difference]: Start difference. First operand 2453 states and 3532 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:13:41,968 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 [] [2022-03-21 00:13:42,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:13:42,737 INFO L93 Difference]: Finished difference Result 5474 states and 7862 transitions. [2022-03-21 00:13:42,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:13:42,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 222 [2022-03-21 00:13:42,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:13:42,745 INFO L225 Difference]: With dead ends: 5474 [2022-03-21 00:13:42,746 INFO L226 Difference]: Without dead ends: 3037 [2022-03-21 00:13:42,753 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 [2022-03-21 00:13:42,753 INFO L913 BasicCegarLoop]: 105 mSDtfsCounter, 113 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:13:42,754 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 296 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 390 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-21 00:13:42,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3037 states. [2022-03-21 00:13:42,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3037 to 2453. [2022-03-21 00:13:42,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2453 states, 2448 states have (on average 1.4268790849673203) internal successors, (3493), 2448 states have internal predecessors, (3493), 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) [2022-03-21 00:13:42,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2453 states to 2453 states and 3497 transitions. [2022-03-21 00:13:42,992 INFO L78 Accepts]: Start accepts. Automaton has 2453 states and 3497 transitions. Word has length 222 [2022-03-21 00:13:42,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:13:42,992 INFO L478 AbstractCegarLoop]: Abstraction has 2453 states and 3497 transitions. [2022-03-21 00:13:42,992 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:13:42,993 INFO L276 IsEmpty]: Start isEmpty. Operand 2453 states and 3497 transitions. [2022-03-21 00:13:42,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-21 00:13:42,997 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:13:42,997 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:13:42,998 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-21 00:13:42,998 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:13:42,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:13:42,998 INFO L85 PathProgramCache]: Analyzing trace with hash -318441025, now seen corresponding path program 1 times [2022-03-21 00:13:42,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:13:42,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1899948014] [2022-03-21 00:14:05,878 WARN L232 SmtUtils]: Spent 18.59s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:14:16,663 WARN L232 SmtUtils]: Spent 7.98s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:14:30,222 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:14:30,223 INFO L85 PathProgramCache]: Analyzing trace with hash -318441025, now seen corresponding path program 2 times [2022-03-21 00:14:30,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:14:30,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912700391] [2022-03-21 00:14:30,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:14:30,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:14:30,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:14:30,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:14:30,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:14:30,499 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-03-21 00:14:30,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:14:30,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912700391] [2022-03-21 00:14:30,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912700391] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:14:30,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:14:30,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:14:30,500 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:14:30,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1899948014] [2022-03-21 00:14:30,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1899948014] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:14:30,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:14:30,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:14:30,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874464613] [2022-03-21 00:14:30,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:14:30,501 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:14:30,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:14:30,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:14:30,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:14:30,502 INFO L87 Difference]: Start difference. First operand 2453 states and 3497 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:14:32,514 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 [] [2022-03-21 00:14:33,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:14:33,130 INFO L93 Difference]: Finished difference Result 4949 states and 7041 transitions. [2022-03-21 00:14:33,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:14:33,131 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 223 [2022-03-21 00:14:33,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:14:33,144 INFO L225 Difference]: With dead ends: 4949 [2022-03-21 00:14:33,144 INFO L226 Difference]: Without dead ends: 2512 [2022-03-21 00:14:33,149 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 [2022-03-21 00:14:33,150 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 25 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:14:33,150 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 483 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 347 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:14:33,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2512 states. [2022-03-21 00:14:33,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2512 to 2453. [2022-03-21 00:14:33,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2453 states, 2448 states have (on average 1.4248366013071896) internal successors, (3488), 2448 states have internal predecessors, (3488), 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) [2022-03-21 00:14:33,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2453 states to 2453 states and 3492 transitions. [2022-03-21 00:14:33,368 INFO L78 Accepts]: Start accepts. Automaton has 2453 states and 3492 transitions. Word has length 223 [2022-03-21 00:14:33,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:14:33,369 INFO L478 AbstractCegarLoop]: Abstraction has 2453 states and 3492 transitions. [2022-03-21 00:14:33,369 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:14:33,369 INFO L276 IsEmpty]: Start isEmpty. Operand 2453 states and 3492 transitions. [2022-03-21 00:14:33,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-03-21 00:14:33,373 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:14:33,373 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:14:33,374 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-21 00:14:33,374 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:14:33,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:14:33,374 INFO L85 PathProgramCache]: Analyzing trace with hash -841165724, now seen corresponding path program 1 times [2022-03-21 00:14:33,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:14:33,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [303518019] [2022-03-21 00:14:53,598 WARN L232 SmtUtils]: Spent 15.42s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:15:08,005 WARN L232 SmtUtils]: Spent 10.99s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:15:17,526 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:15:17,526 INFO L85 PathProgramCache]: Analyzing trace with hash -841165724, now seen corresponding path program 2 times [2022-03-21 00:15:17,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:15:17,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826668595] [2022-03-21 00:15:17,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:15:17,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:15:17,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:17,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:15:17,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:17,664 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2022-03-21 00:15:17,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:15:17,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826668595] [2022-03-21 00:15:17,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826668595] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:17,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:17,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:17,665 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:15:17,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [303518019] [2022-03-21 00:15:17,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [303518019] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:17,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:17,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:17,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390881976] [2022-03-21 00:15:17,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:15:17,666 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:15:17,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:17,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:15:17,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:15:17,666 INFO L87 Difference]: Start difference. First operand 2453 states and 3492 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:15:19,675 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 [] [2022-03-21 00:15:20,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:15:20,303 INFO L93 Difference]: Finished difference Result 5243 states and 7469 transitions. [2022-03-21 00:15:20,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:15:20,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 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 224 [2022-03-21 00:15:20,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:15:20,315 INFO L225 Difference]: With dead ends: 5243 [2022-03-21 00:15:20,315 INFO L226 Difference]: Without dead ends: 2806 [2022-03-21 00:15:20,321 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 [2022-03-21 00:15:20,321 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 70 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:15:20,321 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 530 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:15:20,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2806 states. [2022-03-21 00:15:20,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2806 to 2558. [2022-03-21 00:15:20,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2558 states, 2553 states have (on average 1.4230317273795534) internal successors, (3633), 2553 states have internal predecessors, (3633), 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) [2022-03-21 00:15:20,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2558 states to 2558 states and 3637 transitions. [2022-03-21 00:15:20,498 INFO L78 Accepts]: Start accepts. Automaton has 2558 states and 3637 transitions. Word has length 224 [2022-03-21 00:15:20,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:15:20,498 INFO L478 AbstractCegarLoop]: Abstraction has 2558 states and 3637 transitions. [2022-03-21 00:15:20,498 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:15:20,498 INFO L276 IsEmpty]: Start isEmpty. Operand 2558 states and 3637 transitions. [2022-03-21 00:15:20,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-03-21 00:15:20,502 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:15:20,502 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:15:20,502 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-21 00:15:20,503 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:15:20,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:15:20,505 INFO L85 PathProgramCache]: Analyzing trace with hash -496155121, now seen corresponding path program 1 times [2022-03-21 00:15:20,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:20,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1472730230] [2022-03-21 00:15:33,321 WARN L232 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:15:42,425 WARN L232 SmtUtils]: Spent 6.86s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:15:49,272 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:15:49,272 INFO L85 PathProgramCache]: Analyzing trace with hash -496155121, now seen corresponding path program 2 times [2022-03-21 00:15:49,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:15:49,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86202809] [2022-03-21 00:15:49,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:15:49,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:15:49,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:49,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:15:49,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:49,454 INFO L134 CoverageAnalysis]: Checked inductivity of 686 backedges. 416 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-03-21 00:15:49,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:15:49,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86202809] [2022-03-21 00:15:49,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86202809] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:49,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:49,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:49,455 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:15:49,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1472730230] [2022-03-21 00:15:49,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1472730230] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:49,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:49,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:49,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737579905] [2022-03-21 00:15:49,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:15:49,456 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:15:49,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:49,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:15:49,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:15:49,456 INFO L87 Difference]: Start difference. First operand 2558 states and 3637 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:15:51,464 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 [] [2022-03-21 00:15:52,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:15:52,010 INFO L93 Difference]: Finished difference Result 5676 states and 8063 transitions. [2022-03-21 00:15:52,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:15:52,011 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 225 [2022-03-21 00:15:52,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:15:52,017 INFO L225 Difference]: With dead ends: 5676 [2022-03-21 00:15:52,018 INFO L226 Difference]: Without dead ends: 3134 [2022-03-21 00:15:52,022 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 [2022-03-21 00:15:52,022 INFO L913 BasicCegarLoop]: 106 mSDtfsCounter, 108 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-21 00:15:52,022 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 298 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 391 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-21 00:15:52,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3134 states. [2022-03-21 00:15:52,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3134 to 2558. [2022-03-21 00:15:52,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2558 states, 2553 states have (on average 1.4042303172737955) internal successors, (3585), 2553 states have internal predecessors, (3585), 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) [2022-03-21 00:15:52,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2558 states to 2558 states and 3589 transitions. [2022-03-21 00:15:52,209 INFO L78 Accepts]: Start accepts. Automaton has 2558 states and 3589 transitions. Word has length 225 [2022-03-21 00:15:52,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:15:52,209 INFO L478 AbstractCegarLoop]: Abstraction has 2558 states and 3589 transitions. [2022-03-21 00:15:52,209 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:15:52,209 INFO L276 IsEmpty]: Start isEmpty. Operand 2558 states and 3589 transitions. [2022-03-21 00:15:52,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-03-21 00:15:52,213 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:15:52,213 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:15:52,213 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-21 00:15:52,213 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:15:52,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:15:52,213 INFO L85 PathProgramCache]: Analyzing trace with hash -506813263, now seen corresponding path program 1 times [2022-03-21 00:15:52,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:52,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [893105639] [2022-03-21 00:15:52,214 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:15:52,214 INFO L85 PathProgramCache]: Analyzing trace with hash -506813263, now seen corresponding path program 2 times [2022-03-21 00:15:52,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:15:52,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898844122] [2022-03-21 00:15:52,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:15:52,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:15:52,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:52,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:15:52,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:52,414 INFO L134 CoverageAnalysis]: Checked inductivity of 585 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2022-03-21 00:15:52,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:15:52,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898844122] [2022-03-21 00:15:52,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898844122] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:52,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:52,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:52,415 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:15:52,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [893105639] [2022-03-21 00:15:52,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [893105639] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:52,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:52,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:52,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324476538] [2022-03-21 00:15:52,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:15:52,417 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:15:52,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:52,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:15:52,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:15:52,418 INFO L87 Difference]: Start difference. First operand 2558 states and 3589 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:15:54,427 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 [] [2022-03-21 00:15:55,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:15:55,019 INFO L93 Difference]: Finished difference Result 5946 states and 8317 transitions. [2022-03-21 00:15:55,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:15:55,020 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 235 [2022-03-21 00:15:55,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:15:55,024 INFO L225 Difference]: With dead ends: 5946 [2022-03-21 00:15:55,024 INFO L226 Difference]: Without dead ends: 3404 [2022-03-21 00:15:55,027 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 [2022-03-21 00:15:55,027 INFO L913 BasicCegarLoop]: 107 mSDtfsCounter, 90 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 38 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-21 00:15:55,027 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 300 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 397 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-21 00:15:55,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3404 states. [2022-03-21 00:15:55,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3404 to 2938. [2022-03-21 00:15:55,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2938 states, 2933 states have (on average 1.4132287759972724) internal successors, (4145), 2933 states have internal predecessors, (4145), 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) [2022-03-21 00:15:55,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2938 states to 2938 states and 4149 transitions. [2022-03-21 00:15:55,241 INFO L78 Accepts]: Start accepts. Automaton has 2938 states and 4149 transitions. Word has length 235 [2022-03-21 00:15:55,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:15:55,241 INFO L478 AbstractCegarLoop]: Abstraction has 2938 states and 4149 transitions. [2022-03-21 00:15:55,241 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:15:55,241 INFO L276 IsEmpty]: Start isEmpty. Operand 2938 states and 4149 transitions. [2022-03-21 00:15:55,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-03-21 00:15:55,245 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:15:55,245 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:15:55,245 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-21 00:15:55,245 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:15:55,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:15:55,245 INFO L85 PathProgramCache]: Analyzing trace with hash -622669745, now seen corresponding path program 1 times [2022-03-21 00:15:55,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:55,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1402031567] [2022-03-21 00:15:55,246 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:15:55,246 INFO L85 PathProgramCache]: Analyzing trace with hash -622669745, now seen corresponding path program 2 times [2022-03-21 00:15:55,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:15:55,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312429873] [2022-03-21 00:15:55,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:15:55,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:15:55,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:55,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:15:55,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:55,459 INFO L134 CoverageAnalysis]: Checked inductivity of 585 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2022-03-21 00:15:55,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:15:55,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312429873] [2022-03-21 00:15:55,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312429873] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:55,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:55,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:55,460 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:15:55,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1402031567] [2022-03-21 00:15:55,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1402031567] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:55,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:55,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:55,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114795845] [2022-03-21 00:15:55,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:15:55,461 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:15:55,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:55,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:15:55,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:15:55,461 INFO L87 Difference]: Start difference. First operand 2938 states and 4149 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:15:57,470 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 [] [2022-03-21 00:15:58,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:15:58,096 INFO L93 Difference]: Finished difference Result 6436 states and 9087 transitions. [2022-03-21 00:15:58,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:15:58,098 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 235 [2022-03-21 00:15:58,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:15:58,103 INFO L225 Difference]: With dead ends: 6436 [2022-03-21 00:15:58,103 INFO L226 Difference]: Without dead ends: 3514 [2022-03-21 00:15:58,106 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 [2022-03-21 00:15:58,106 INFO L913 BasicCegarLoop]: 106 mSDtfsCounter, 88 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-21 00:15:58,107 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 298 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 391 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-21 00:15:58,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3514 states. [2022-03-21 00:15:58,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3514 to 3068. [2022-03-21 00:15:58,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3068 states, 3063 states have (on average 1.4348677766895201) internal successors, (4395), 3063 states have internal predecessors, (4395), 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) [2022-03-21 00:15:58,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3068 states to 3068 states and 4399 transitions. [2022-03-21 00:15:58,336 INFO L78 Accepts]: Start accepts. Automaton has 3068 states and 4399 transitions. Word has length 235 [2022-03-21 00:15:58,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:15:58,336 INFO L478 AbstractCegarLoop]: Abstraction has 3068 states and 4399 transitions. [2022-03-21 00:15:58,336 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:15:58,336 INFO L276 IsEmpty]: Start isEmpty. Operand 3068 states and 4399 transitions. [2022-03-21 00:15:58,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-03-21 00:15:58,340 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:15:58,340 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:15:58,340 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-21 00:15:58,340 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:15:58,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:15:58,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1454761395, now seen corresponding path program 1 times [2022-03-21 00:15:58,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:58,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1217206009] [2022-03-21 00:15:58,341 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:15:58,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1454761395, now seen corresponding path program 2 times [2022-03-21 00:15:58,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:15:58,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806282431] [2022-03-21 00:15:58,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:15:58,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms