/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-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-5d317bd [2022-03-19 13:39:22,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-19 13:39:22,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-19 13:39:22,361 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-19 13:39:22,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-19 13:39:22,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-19 13:39:22,365 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-19 13:39:22,373 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-19 13:39:22,375 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-19 13:39:22,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-19 13:39:22,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-19 13:39:22,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-19 13:39:22,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-19 13:39:22,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-19 13:39:22,385 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-19 13:39:22,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-19 13:39:22,387 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-19 13:39:22,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-19 13:39:22,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-19 13:39:22,392 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-19 13:39:22,393 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-19 13:39:22,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-19 13:39:22,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-19 13:39:22,397 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-19 13:39:22,398 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-19 13:39:22,401 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-19 13:39:22,407 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-19 13:39:22,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-19 13:39:22,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-19 13:39:22,410 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-03-19 13:39:22,418 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-19 13:39:22,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-19 13:39:22,421 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-19 13:39:22,421 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-19 13:39:22,421 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-19 13:39:22,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-19 13:39:22,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-19 13:39:22,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-19 13:39:22,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-19 13:39:22,422 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-19 13:39:22,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-19 13:39:22,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-19 13:39:22,422 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-19 13:39:22,422 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-19 13:39:22,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-19 13:39:22,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 13:39:22,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-19 13:39:22,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-19 13:39:22,423 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-19 13:39:22,423 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-19 13:39:22,423 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-19 13:39:22,423 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-03-19 13:39:22,423 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-19 13:39:22,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-19 13:39:22,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-19 13:39:22,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-19 13:39:22,642 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-19 13:39:22,644 INFO L275 PluginConnector]: CDTParser initialized [2022-03-19 13:39:22,645 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-2.c [2022-03-19 13:39:22,699 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2ac5c172/e1cc8ac1f7624e0f84b500722f3d5fa6/FLAGac37f353d [2022-03-19 13:39:23,078 INFO L306 CDTParser]: Found 1 translation units. [2022-03-19 13:39:23,078 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-2.c [2022-03-19 13:39:23,102 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2ac5c172/e1cc8ac1f7624e0f84b500722f3d5fa6/FLAGac37f353d [2022-03-19 13:39:23,436 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2ac5c172/e1cc8ac1f7624e0f84b500722f3d5fa6 [2022-03-19 13:39:23,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-19 13:39:23,439 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-19 13:39:23,448 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-19 13:39:23,448 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-19 13:39:23,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-19 13:39:23,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 01:39:23" (1/1) ... [2022-03-19 13:39:23,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60c3da1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:39:23, skipping insertion in model container [2022-03-19 13:39:23,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 01:39:23" (1/1) ... [2022-03-19 13:39:23,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-19 13:39:23,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-19 13:39:23,788 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-2.c[65520,65533] [2022-03-19 13:39:23,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 13:39:23,817 INFO L203 MainTranslator]: Completed pre-run [2022-03-19 13:39:23,892 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-2.c[65520,65533] [2022-03-19 13:39:23,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 13:39:23,904 INFO L208 MainTranslator]: Completed translation [2022-03-19 13:39:23,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:39:23 WrapperNode [2022-03-19 13:39:23,906 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-19 13:39:23,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-19 13:39:23,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-19 13:39:23,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-19 13:39:23,914 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:39:23" (1/1) ... [2022-03-19 13:39:23,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:39:23" (1/1) ... [2022-03-19 13:39:23,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:39:23" (1/1) ... [2022-03-19 13:39:23,928 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:39:23" (1/1) ... [2022-03-19 13:39:23,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:39:23" (1/1) ... [2022-03-19 13:39:23,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:39:23" (1/1) ... [2022-03-19 13:39:23,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:39:23" (1/1) ... [2022-03-19 13:39:23,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-19 13:39:23,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-19 13:39:23,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-19 13:39:23,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-19 13:39:23,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:39:23" (1/1) ... [2022-03-19 13:39:24,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 13:39:24,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 13:39:24,045 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-19 13:39:24,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-19 13:39:24,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-19 13:39:24,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-19 13:39:24,084 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-19 13:39:24,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2022-03-19 13:39:24,084 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2022-03-19 13:39:24,084 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-19 13:39:24,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-03-19 13:39:24,085 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-19 13:39:24,085 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-19 13:39:24,085 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-19 13:39:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-19 13:39:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-19 13:39:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-19 13:39:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-19 13:39:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-19 13:39:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-19 13:39:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-19 13:39:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-19 13:39:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-19 13:39:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-19 13:39:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2022-03-19 13:39:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-19 13:39:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-03-19 13:39:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2022-03-19 13:39:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-19 13:39:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-19 13:39:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-19 13:39:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-19 13:39:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-19 13:39:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-19 13:39:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-19 13:39:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-19 13:39:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-19 13:39:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-19 13:39:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-19 13:39:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-19 13:39:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-19 13:39:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-19 13:39:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-19 13:39:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-19 13:39:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-19 13:39:24,219 INFO L234 CfgBuilder]: Building ICFG [2022-03-19 13:39:24,220 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-19 13:39:25,636 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-19 13:39:26,010 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-03-19 13:39:26,010 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-03-19 13:39:26,031 INFO L275 CfgBuilder]: Performing block encoding [2022-03-19 13:39:26,038 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-19 13:39:26,038 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-19 13:39:26,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 01:39:26 BoogieIcfgContainer [2022-03-19 13:39:26,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-19 13:39:26,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-19 13:39:26,043 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-19 13:39:26,046 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-19 13:39:26,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.03 01:39:23" (1/3) ... [2022-03-19 13:39:26,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@363d8a36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 01:39:26, skipping insertion in model container [2022-03-19 13:39:26,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:39:23" (2/3) ... [2022-03-19 13:39:26,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@363d8a36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 01:39:26, skipping insertion in model container [2022-03-19 13:39:26,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 01:39:26" (3/3) ... [2022-03-19 13:39:26,049 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.01.i.cil-2.c [2022-03-19 13:39:26,053 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-19 13:39:26,053 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-19 13:39:26,094 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-19 13:39:26,101 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-19 13:39:26,102 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-19 13:39:26,117 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 132 states have (on average 1.6742424242424243) internal successors, (221), 133 states have internal predecessors, (221), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-19 13:39:26,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-03-19 13:39:26,127 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:39:26,127 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:39:26,127 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:39:26,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:39:26,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1896540148, now seen corresponding path program 1 times [2022-03-19 13:39:26,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:39:26,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [975929382] [2022-03-19 13:39:26,149 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 13:39:26,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1896540148, now seen corresponding path program 2 times [2022-03-19 13:39:26,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:39:26,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458249059] [2022-03-19 13:39:26,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:39:26,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:39:26,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:39:26,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:39:26,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:39:26,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 13:39:26,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:39:26,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458249059] [2022-03-19 13:39:26,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458249059] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:39:26,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:39:26,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:39:26,660 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:39:26,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [975929382] [2022-03-19 13:39:26,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [975929382] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:39:26,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:39:26,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:39:26,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867353557] [2022-03-19 13:39:26,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:39:26,665 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:39:26,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:39:26,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:39:26,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:39:26,688 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) [2022-03-19 13:39:28,725 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 [] [2022-03-19 13:39:29,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:39:29,273 INFO L93 Difference]: Finished difference Result 375 states and 621 transitions. [2022-03-19 13:39:29,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:39:29,276 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 [2022-03-19 13:39:29,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:39:29,282 INFO L225 Difference]: With dead ends: 375 [2022-03-19 13:39:29,282 INFO L226 Difference]: Without dead ends: 214 [2022-03-19 13:39:29,285 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:39:29,287 INFO L912 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, 2.5s IncrementalHoareTripleChecker+Time [2022-03-19 13:39:29,288 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 405 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-19 13:39:29,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-03-19 13:39:29,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 144. [2022-03-19 13:39:29,334 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) [2022-03-19 13:39:29,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 219 transitions. [2022-03-19 13:39:29,337 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 219 transitions. Word has length 30 [2022-03-19 13:39:29,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:39:29,338 INFO L478 AbstractCegarLoop]: Abstraction has 144 states and 219 transitions. [2022-03-19 13:39:29,338 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) [2022-03-19 13:39:29,339 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 219 transitions. [2022-03-19 13:39:29,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-03-19 13:39:29,340 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:39:29,340 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:39:29,341 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-19 13:39:29,341 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:39:29,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:39:29,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1332379691, now seen corresponding path program 1 times [2022-03-19 13:39:29,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:39:29,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1426412812] [2022-03-19 13:39:29,343 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 13:39:29,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1332379691, now seen corresponding path program 2 times [2022-03-19 13:39:29,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:39:29,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948575768] [2022-03-19 13:39:29,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:39:29,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:39:29,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:39:29,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:39:29,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:39:29,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 13:39:29,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:39:29,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948575768] [2022-03-19 13:39:29,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948575768] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:39:29,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:39:29,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:39:29,546 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:39:29,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1426412812] [2022-03-19 13:39:29,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1426412812] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:39:29,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:39:29,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:39:29,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574022920] [2022-03-19 13:39:29,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:39:29,547 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:39:29,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:39:29,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:39:29,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:39:29,548 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) [2022-03-19 13:39:31,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:39:31,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:39:31,888 INFO L93 Difference]: Finished difference Result 279 states and 426 transitions. [2022-03-19 13:39:31,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:39:31,888 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 [2022-03-19 13:39:31,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:39:31,889 INFO L225 Difference]: With dead ends: 279 [2022-03-19 13:39:31,890 INFO L226 Difference]: Without dead ends: 148 [2022-03-19 13:39:31,890 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:39:31,891 INFO L912 BasicCegarLoop]: 167 mSDtfsCounter, 7 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s 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, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:39:31,891 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 423 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 268 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 13:39:31,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-03-19 13:39:31,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 147. [2022-03-19 13:39:31,898 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) [2022-03-19 13:39:31,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 222 transitions. [2022-03-19 13:39:31,899 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 222 transitions. Word has length 31 [2022-03-19 13:39:31,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:39:31,899 INFO L478 AbstractCegarLoop]: Abstraction has 147 states and 222 transitions. [2022-03-19 13:39:31,899 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) [2022-03-19 13:39:31,900 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 222 transitions. [2022-03-19 13:39:31,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-19 13:39:31,900 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:39:31,901 INFO L500 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] [2022-03-19 13:39:31,901 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-19 13:39:31,901 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:39:31,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:39:31,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1031742358, now seen corresponding path program 1 times [2022-03-19 13:39:31,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:39:31,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2132037851] [2022-03-19 13:39:31,902 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:39:31,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1031742358, now seen corresponding path program 2 times [2022-03-19 13:39:31,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:39:31,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440290438] [2022-03-19 13:39:31,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:39:31,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:39:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:39:32,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:39:32,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:39:32,027 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-19 13:39:32,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:39:32,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440290438] [2022-03-19 13:39:32,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440290438] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:39:32,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:39:32,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 13:39:32,028 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:39:32,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2132037851] [2022-03-19 13:39:32,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2132037851] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:39:32,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:39:32,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 13:39:32,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676717144] [2022-03-19 13:39:32,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:39:32,029 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 13:39:32,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:39:32,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 13:39:32,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 13:39:32,030 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) [2022-03-19 13:39:34,038 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:39:34,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:39:34,282 INFO L93 Difference]: Finished difference Result 405 states and 622 transitions. [2022-03-19 13:39:34,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 13:39:34,282 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 [2022-03-19 13:39:34,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:39:34,284 INFO L225 Difference]: With dead ends: 405 [2022-03-19 13:39:34,284 INFO L226 Difference]: Without dead ends: 274 [2022-03-19 13:39:34,285 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 13:39:34,285 INFO L912 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, 2.2s IncrementalHoareTripleChecker+Time [2022-03-19 13:39:34,286 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 323 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 192 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-19 13:39:34,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2022-03-19 13:39:34,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2022-03-19 13:39:34,311 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) [2022-03-19 13:39:34,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 414 transitions. [2022-03-19 13:39:34,312 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 414 transitions. Word has length 46 [2022-03-19 13:39:34,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:39:34,312 INFO L478 AbstractCegarLoop]: Abstraction has 274 states and 414 transitions. [2022-03-19 13:39:34,312 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) [2022-03-19 13:39:34,312 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 414 transitions. [2022-03-19 13:39:34,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-03-19 13:39:34,314 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:39:34,314 INFO L500 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] [2022-03-19 13:39:34,314 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-19 13:39:34,314 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:39:34,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:39:34,314 INFO L85 PathProgramCache]: Analyzing trace with hash -815325844, now seen corresponding path program 1 times [2022-03-19 13:39:34,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:39:34,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1025042335] [2022-03-19 13:39:34,315 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:39:34,315 INFO L85 PathProgramCache]: Analyzing trace with hash -815325844, now seen corresponding path program 2 times [2022-03-19 13:39:34,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:39:34,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797426705] [2022-03-19 13:39:34,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:39:34,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:39:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:39:34,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:39:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:39:34,514 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-19 13:39:34,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:39:34,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797426705] [2022-03-19 13:39:34,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797426705] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:39:34,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:39:34,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:39:34,516 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:39:34,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1025042335] [2022-03-19 13:39:34,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1025042335] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:39:34,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:39:34,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:39:34,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380437576] [2022-03-19 13:39:34,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:39:34,517 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:39:34,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:39:34,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:39:34,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:39:34,521 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) [2022-03-19 13:39:36,531 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:39:36,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:39:36,930 INFO L93 Difference]: Finished difference Result 717 states and 1086 transitions. [2022-03-19 13:39:36,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:39:36,931 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 [2022-03-19 13:39:36,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:39:36,933 INFO L225 Difference]: With dead ends: 717 [2022-03-19 13:39:36,933 INFO L226 Difference]: Without dead ends: 459 [2022-03-19 13:39:36,934 INFO L911 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 [2022-03-19 13:39:36,934 INFO L912 BasicCegarLoop]: 99 mSDtfsCounter, 107 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:39:36,935 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 284 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 13:39:36,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2022-03-19 13:39:36,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 324. [2022-03-19 13:39:36,956 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) [2022-03-19 13:39:36,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 502 transitions. [2022-03-19 13:39:36,957 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 502 transitions. Word has length 61 [2022-03-19 13:39:36,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:39:36,959 INFO L478 AbstractCegarLoop]: Abstraction has 324 states and 502 transitions. [2022-03-19 13:39:36,959 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:39:36,959 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 502 transitions. [2022-03-19 13:39:36,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-03-19 13:39:36,965 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:39:36,965 INFO L500 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, 1] [2022-03-19 13:39:36,965 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-19 13:39:36,965 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:39:36,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:39:36,966 INFO L85 PathProgramCache]: Analyzing trace with hash 490445606, now seen corresponding path program 1 times [2022-03-19 13:39:36,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:39:36,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1884038335] [2022-03-19 13:39:36,966 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:39:36,966 INFO L85 PathProgramCache]: Analyzing trace with hash 490445606, now seen corresponding path program 2 times [2022-03-19 13:39:36,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:39:36,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546057896] [2022-03-19 13:39:36,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:39:36,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:39:37,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:39:37,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:39:37,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:39:37,112 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-19 13:39:37,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:39:37,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546057896] [2022-03-19 13:39:37,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546057896] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:39:37,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:39:37,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:39:37,113 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:39:37,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1884038335] [2022-03-19 13:39:37,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1884038335] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:39:37,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:39:37,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:39:37,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812314633] [2022-03-19 13:39:37,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:39:37,116 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:39:37,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:39:37,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:39:37,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:39:37,117 INFO L87 Difference]: Start difference. First operand 324 states and 502 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:39:39,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:39:39,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:39:39,534 INFO L93 Difference]: Finished difference Result 817 states and 1258 transitions. [2022-03-19 13:39:39,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:39:39,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (3), 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 62 [2022-03-19 13:39:39,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:39:39,536 INFO L225 Difference]: With dead ends: 817 [2022-03-19 13:39:39,536 INFO L226 Difference]: Without dead ends: 509 [2022-03-19 13:39:39,537 INFO L911 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 [2022-03-19 13:39:39,537 INFO L912 BasicCegarLoop]: 99 mSDtfsCounter, 105 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:39:39,538 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 284 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 13:39:39,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2022-03-19 13:39:39,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 376. [2022-03-19 13:39:39,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 371 states have (on average 1.5795148247978437) internal successors, (586), 371 states have internal predecessors, (586), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:39:39,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 590 transitions. [2022-03-19 13:39:39,559 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 590 transitions. Word has length 62 [2022-03-19 13:39:39,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:39:39,560 INFO L478 AbstractCegarLoop]: Abstraction has 376 states and 590 transitions. [2022-03-19 13:39:39,560 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:39:39,560 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 590 transitions. [2022-03-19 13:39:39,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-19 13:39:39,561 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:39:39,561 INFO L500 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, 1, 1] [2022-03-19 13:39:39,561 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-19 13:39:39,561 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:39:39,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:39:39,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1980532473, now seen corresponding path program 1 times [2022-03-19 13:39:39,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:39:39,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1142368834] [2022-03-19 13:39:39,562 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:39:39,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1980532473, now seen corresponding path program 2 times [2022-03-19 13:39:39,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:39:39,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130429872] [2022-03-19 13:39:39,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:39:39,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:39:39,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:39:39,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:39:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:39:39,730 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-19 13:39:39,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:39:39,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130429872] [2022-03-19 13:39:39,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130429872] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:39:39,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:39:39,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:39:39,732 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:39:39,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1142368834] [2022-03-19 13:39:39,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1142368834] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:39:39,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:39:39,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:39:39,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000192064] [2022-03-19 13:39:39,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:39:39,733 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:39:39,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:39:39,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:39:39,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:39:39,733 INFO L87 Difference]: Start difference. First operand 376 states and 590 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:39:41,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:39:42,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:39:42,141 INFO L93 Difference]: Finished difference Result 871 states and 1348 transitions. [2022-03-19 13:39:42,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:39:42,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-03-19 13:39:42,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:39:42,143 INFO L225 Difference]: With dead ends: 871 [2022-03-19 13:39:42,143 INFO L226 Difference]: Without dead ends: 511 [2022-03-19 13:39:42,144 INFO L911 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 [2022-03-19 13:39:42,144 INFO L912 BasicCegarLoop]: 106 mSDtfsCounter, 104 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 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, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:39:42,144 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 298 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 391 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 13:39:42,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2022-03-19 13:39:42,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 380. [2022-03-19 13:39:42,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 375 states have (on average 1.5786666666666667) internal successors, (592), 375 states have internal predecessors, (592), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:39:42,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 596 transitions. [2022-03-19 13:39:42,159 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 596 transitions. Word has length 63 [2022-03-19 13:39:42,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:39:42,159 INFO L478 AbstractCegarLoop]: Abstraction has 380 states and 596 transitions. [2022-03-19 13:39:42,160 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:39:42,167 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 596 transitions. [2022-03-19 13:39:42,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-03-19 13:39:42,169 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:39:42,170 INFO L500 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] [2022-03-19 13:39:42,170 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-19 13:39:42,170 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:39:42,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:39:42,170 INFO L85 PathProgramCache]: Analyzing trace with hash -807453134, now seen corresponding path program 1 times [2022-03-19 13:39:42,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:39:42,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [449216024] [2022-03-19 13:39:42,171 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:39:42,171 INFO L85 PathProgramCache]: Analyzing trace with hash -807453134, now seen corresponding path program 2 times [2022-03-19 13:39:42,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:39:42,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613810567] [2022-03-19 13:39:42,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:39:42,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:39:42,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:39:42,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:39:42,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:39:42,298 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-03-19 13:39:42,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:39:42,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613810567] [2022-03-19 13:39:42,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613810567] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:39:42,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:39:42,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:39:42,299 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:39:42,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [449216024] [2022-03-19 13:39:42,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [449216024] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:39:42,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:39:42,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:39:42,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216091127] [2022-03-19 13:39:42,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:39:42,299 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:39:42,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:39:42,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:39:42,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:39:42,300 INFO L87 Difference]: Start difference. First operand 380 states and 596 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:39:44,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:39:44,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:39:44,674 INFO L93 Difference]: Finished difference Result 599 states and 942 transitions. [2022-03-19 13:39:44,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:39:44,675 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2022-03-19 13:39:44,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:39:44,676 INFO L225 Difference]: With dead ends: 599 [2022-03-19 13:39:44,676 INFO L226 Difference]: Without dead ends: 415 [2022-03-19 13:39:44,677 INFO L911 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 [2022-03-19 13:39:44,677 INFO L912 BasicCegarLoop]: 200 mSDtfsCounter, 31 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:39:44,677 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 490 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 13:39:44,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2022-03-19 13:39:44,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 398. [2022-03-19 13:39:44,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 393 states have (on average 1.5826972010178118) internal successors, (622), 393 states have internal predecessors, (622), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:39:44,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 626 transitions. [2022-03-19 13:39:44,691 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 626 transitions. Word has length 81 [2022-03-19 13:39:44,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:39:44,692 INFO L478 AbstractCegarLoop]: Abstraction has 398 states and 626 transitions. [2022-03-19 13:39:44,692 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:39:44,692 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 626 transitions. [2022-03-19 13:39:44,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-03-19 13:39:44,693 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:39:44,693 INFO L500 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:39:44,693 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-19 13:39:44,693 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:39:44,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:39:44,693 INFO L85 PathProgramCache]: Analyzing trace with hash -789307781, now seen corresponding path program 3 times [2022-03-19 13:39:44,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:39:44,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [76683506] [2022-03-19 13:39:54,964 WARN L232 SmtUtils]: Spent 10.27s 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) [2022-03-19 13:40:02,480 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:40:02,480 INFO L85 PathProgramCache]: Analyzing trace with hash -789307781, now seen corresponding path program 4 times [2022-03-19 13:40:02,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:40:02,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353144585] [2022-03-19 13:40:02,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:40:02,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:40:02,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:40:02,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:40:02,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:40:02,622 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-03-19 13:40:02,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:40:02,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353144585] [2022-03-19 13:40:02,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353144585] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:40:02,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:40:02,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:40:02,623 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:40:02,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [76683506] [2022-03-19 13:40:02,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [76683506] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:40:02,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:40:02,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:40:02,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538383796] [2022-03-19 13:40:02,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:40:02,624 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:40:02,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:40:02,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:40:02,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:40:02,624 INFO L87 Difference]: Start difference. First operand 398 states and 626 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:40:04,633 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:40:04,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:40:04,989 INFO L93 Difference]: Finished difference Result 616 states and 970 transitions. [2022-03-19 13:40:04,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:40:04,989 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2022-03-19 13:40:04,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:40:04,990 INFO L225 Difference]: With dead ends: 616 [2022-03-19 13:40:04,991 INFO L226 Difference]: Without dead ends: 414 [2022-03-19 13:40:04,991 INFO L911 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 [2022-03-19 13:40:04,992 INFO L912 BasicCegarLoop]: 200 mSDtfsCounter, 37 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:40:04,992 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 490 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 354 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 13:40:04,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2022-03-19 13:40:05,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 398. [2022-03-19 13:40:05,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 393 states have (on average 1.5801526717557253) internal successors, (621), 393 states have internal predecessors, (621), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:40:05,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 625 transitions. [2022-03-19 13:40:05,006 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 625 transitions. Word has length 96 [2022-03-19 13:40:05,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:40:05,007 INFO L478 AbstractCegarLoop]: Abstraction has 398 states and 625 transitions. [2022-03-19 13:40:05,007 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:40:05,007 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 625 transitions. [2022-03-19 13:40:05,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-03-19 13:40:05,011 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:40:05,011 INFO L500 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:40:05,011 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-19 13:40:05,011 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:40:05,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:40:05,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1141442077, now seen corresponding path program 1 times [2022-03-19 13:40:05,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:40:05,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1555277785] [2022-03-19 13:40:19,299 WARN L232 SmtUtils]: Spent 9.37s 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) [2022-03-19 13:40:27,012 WARN L232 SmtUtils]: Spent 5.39s 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) [2022-03-19 13:40:28,165 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:40:28,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1141442077, now seen corresponding path program 2 times [2022-03-19 13:40:28,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:40:28,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935757182] [2022-03-19 13:40:28,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:40:28,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:40:28,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:40:28,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:40:28,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:40:28,316 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-03-19 13:40:28,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:40:28,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935757182] [2022-03-19 13:40:28,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935757182] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:40:28,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:40:28,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:40:28,317 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:40:28,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1555277785] [2022-03-19 13:40:28,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1555277785] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:40:28,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:40:28,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:40:28,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739532637] [2022-03-19 13:40:28,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:40:28,317 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:40:28,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:40:28,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:40:28,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:40:28,318 INFO L87 Difference]: Start difference. First operand 398 states and 625 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:40:30,328 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:40:30,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:40:30,688 INFO L93 Difference]: Finished difference Result 616 states and 968 transitions. [2022-03-19 13:40:30,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:40:30,688 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2022-03-19 13:40:30,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:40:30,690 INFO L225 Difference]: With dead ends: 616 [2022-03-19 13:40:30,690 INFO L226 Difference]: Without dead ends: 414 [2022-03-19 13:40:30,691 INFO L911 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 [2022-03-19 13:40:30,691 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 35 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:40:30,691 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 488 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 353 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 13:40:30,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2022-03-19 13:40:30,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 398. [2022-03-19 13:40:30,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 393 states have (on average 1.5776081424936388) internal successors, (620), 393 states have internal predecessors, (620), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:40:30,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 624 transitions. [2022-03-19 13:40:30,705 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 624 transitions. Word has length 96 [2022-03-19 13:40:30,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:40:30,705 INFO L478 AbstractCegarLoop]: Abstraction has 398 states and 624 transitions. [2022-03-19 13:40:30,705 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:40:30,705 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 624 transitions. [2022-03-19 13:40:30,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-03-19 13:40:30,706 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:40:30,706 INFO L500 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:40:30,706 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-19 13:40:30,706 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:40:30,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:40:30,707 INFO L85 PathProgramCache]: Analyzing trace with hash 2018061342, now seen corresponding path program 1 times [2022-03-19 13:40:30,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:40:30,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1440435676] [2022-03-19 13:40:50,349 WARN L232 SmtUtils]: Spent 13.78s 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) [2022-03-19 13:40:58,993 WARN L232 SmtUtils]: Spent 6.29s 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) [2022-03-19 13:41:00,089 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:41:00,089 INFO L85 PathProgramCache]: Analyzing trace with hash 2018061342, now seen corresponding path program 2 times [2022-03-19 13:41:00,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:41:00,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810516932] [2022-03-19 13:41:00,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:41:00,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:41:00,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:41:00,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:41:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:41:00,238 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-03-19 13:41:00,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:41:00,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810516932] [2022-03-19 13:41:00,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810516932] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:41:00,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:41:00,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:41:00,239 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:41:00,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1440435676] [2022-03-19 13:41:00,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1440435676] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:41:00,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:41:00,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:41:00,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743033339] [2022-03-19 13:41:00,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:41:00,239 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:41:00,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:41:00,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:41:00,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:41:00,240 INFO L87 Difference]: Start difference. First operand 398 states and 624 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) [2022-03-19 13:41:02,249 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:41:02,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:41:02,603 INFO L93 Difference]: Finished difference Result 616 states and 966 transitions. [2022-03-19 13:41:02,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:41:02,603 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 97 [2022-03-19 13:41:02,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:41:02,605 INFO L225 Difference]: With dead ends: 616 [2022-03-19 13:41:02,605 INFO L226 Difference]: Without dead ends: 414 [2022-03-19 13:41:02,606 INFO L911 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 [2022-03-19 13:41:02,606 INFO L912 BasicCegarLoop]: 198 mSDtfsCounter, 33 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:41:02,606 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 486 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 352 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 13:41:02,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2022-03-19 13:41:02,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 398. [2022-03-19 13:41:02,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 393 states have (on average 1.575063613231552) internal successors, (619), 393 states have internal predecessors, (619), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:41:02,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 623 transitions. [2022-03-19 13:41:02,620 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 623 transitions. Word has length 97 [2022-03-19 13:41:02,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:41:02,620 INFO L478 AbstractCegarLoop]: Abstraction has 398 states and 623 transitions. [2022-03-19 13:41:02,620 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) [2022-03-19 13:41:02,620 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 623 transitions. [2022-03-19 13:41:02,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-03-19 13:41:02,621 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:41:02,621 INFO L500 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:41:02,621 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-19 13:41:02,621 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:41:02,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:41:02,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1320629736, now seen corresponding path program 1 times [2022-03-19 13:41:02,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:41:02,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1886534688] [2022-03-19 13:41:17,354 WARN L232 SmtUtils]: Spent 9.44s 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) [2022-03-19 13:41:25,234 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:41:25,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1320629736, now seen corresponding path program 2 times [2022-03-19 13:41:25,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:41:25,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751439571] [2022-03-19 13:41:25,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:41:25,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:41:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:41:25,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:41:25,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:41:25,370 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-03-19 13:41:25,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:41:25,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751439571] [2022-03-19 13:41:25,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751439571] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:41:25,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:41:25,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:41:25,371 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:41:25,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1886534688] [2022-03-19 13:41:25,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1886534688] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:41:25,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:41:25,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:41:25,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116648411] [2022-03-19 13:41:25,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:41:25,372 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:41:25,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:41:25,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:41:25,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:41:25,372 INFO L87 Difference]: Start difference. First operand 398 states and 623 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) [2022-03-19 13:41:27,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:41:27,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:41:27,792 INFO L93 Difference]: Finished difference Result 911 states and 1406 transitions. [2022-03-19 13:41:27,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:41:27,793 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 98 [2022-03-19 13:41:27,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:41:27,794 INFO L225 Difference]: With dead ends: 911 [2022-03-19 13:41:27,794 INFO L226 Difference]: Without dead ends: 529 [2022-03-19 13:41:27,795 INFO L911 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 [2022-03-19 13:41:27,796 INFO L912 BasicCegarLoop]: 106 mSDtfsCounter, 116 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 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, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:41:27,796 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 298 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 391 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 13:41:27,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2022-03-19 13:41:27,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 398. [2022-03-19 13:41:27,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 393 states have (on average 1.5572519083969465) internal successors, (612), 393 states have internal predecessors, (612), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:41:27,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 616 transitions. [2022-03-19 13:41:27,812 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 616 transitions. Word has length 98 [2022-03-19 13:41:27,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:41:27,812 INFO L478 AbstractCegarLoop]: Abstraction has 398 states and 616 transitions. [2022-03-19 13:41:27,812 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) [2022-03-19 13:41:27,812 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 616 transitions. [2022-03-19 13:41:27,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-03-19 13:41:27,813 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:41:27,813 INFO L500 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:41:27,813 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-19 13:41:27,813 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:41:27,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:41:27,814 INFO L85 PathProgramCache]: Analyzing trace with hash 2105012025, now seen corresponding path program 1 times [2022-03-19 13:41:27,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:41:27,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1256983006] [2022-03-19 13:41:47,617 WARN L232 SmtUtils]: Spent 13.86s 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) [2022-03-19 13:41:54,978 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:41:54,978 INFO L85 PathProgramCache]: Analyzing trace with hash 2105012025, now seen corresponding path program 2 times [2022-03-19 13:41:54,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:41:54,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958947053] [2022-03-19 13:41:54,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:41:54,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:41:55,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:41:55,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:41:55,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:41:55,140 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-03-19 13:41:55,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:41:55,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958947053] [2022-03-19 13:41:55,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958947053] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:41:55,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:41:55,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:41:55,140 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:41:55,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1256983006] [2022-03-19 13:41:55,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1256983006] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:41:55,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:41:55,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:41:55,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909933253] [2022-03-19 13:41:55,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:41:55,141 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:41:55,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:41:55,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:41:55,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:41:55,141 INFO L87 Difference]: Start difference. First operand 398 states and 616 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:41:57,150 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:41:57,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:41:57,557 INFO L93 Difference]: Finished difference Result 911 states and 1392 transitions. [2022-03-19 13:41:57,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:41:57,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 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 99 [2022-03-19 13:41:57,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:41:57,560 INFO L225 Difference]: With dead ends: 911 [2022-03-19 13:41:57,560 INFO L226 Difference]: Without dead ends: 529 [2022-03-19 13:41:57,561 INFO L911 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 [2022-03-19 13:41:57,561 INFO L912 BasicCegarLoop]: 106 mSDtfsCounter, 114 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 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, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:41:57,561 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 298 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 391 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 13:41:57,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2022-03-19 13:41:57,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 398. [2022-03-19 13:41:57,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 393 states have (on average 1.539440203562341) internal successors, (605), 393 states have internal predecessors, (605), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:41:57,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 609 transitions. [2022-03-19 13:41:57,577 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 609 transitions. Word has length 99 [2022-03-19 13:41:57,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:41:57,577 INFO L478 AbstractCegarLoop]: Abstraction has 398 states and 609 transitions. [2022-03-19 13:41:57,577 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:41:57,577 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 609 transitions. [2022-03-19 13:41:57,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-03-19 13:41:57,578 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:41:57,578 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:41:57,578 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-19 13:41:57,578 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:41:57,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:41:57,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1726018170, now seen corresponding path program 1 times [2022-03-19 13:41:57,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:41:57,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [919810474] [2022-03-19 13:41:57,580 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:41:57,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1726018170, now seen corresponding path program 2 times [2022-03-19 13:41:57,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:41:57,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73715838] [2022-03-19 13:41:57,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:41:57,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:41:57,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:41:57,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:41:57,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:41:57,706 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-03-19 13:41:57,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:41:57,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73715838] [2022-03-19 13:41:57,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73715838] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:41:57,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:41:57,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 13:41:57,707 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:41:57,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [919810474] [2022-03-19 13:41:57,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [919810474] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:41:57,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:41:57,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 13:41:57,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962861263] [2022-03-19 13:41:57,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:41:57,707 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 13:41:57,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:41:57,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 13:41:57,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 13:41:57,707 INFO L87 Difference]: Start difference. First operand 398 states and 609 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:41:59,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:42:00,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:42:00,155 INFO L93 Difference]: Finished difference Result 799 states and 1231 transitions. [2022-03-19 13:42:00,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 13:42:00,155 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 99 [2022-03-19 13:42:00,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:42:00,157 INFO L225 Difference]: With dead ends: 799 [2022-03-19 13:42:00,157 INFO L226 Difference]: Without dead ends: 597 [2022-03-19 13:42:00,158 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 13:42:00,158 INFO L912 BasicCegarLoop]: 319 mSDtfsCounter, 130 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 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 [2022-03-19 13:42:00,158 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 483 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 343 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 13:42:00,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2022-03-19 13:42:00,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 597. [2022-03-19 13:42:00,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 592 states have (on average 1.535472972972973) internal successors, (909), 592 states have internal predecessors, (909), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:42:00,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 913 transitions. [2022-03-19 13:42:00,180 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 913 transitions. Word has length 99 [2022-03-19 13:42:00,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:42:00,180 INFO L478 AbstractCegarLoop]: Abstraction has 597 states and 913 transitions. [2022-03-19 13:42:00,180 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:42:00,180 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 913 transitions. [2022-03-19 13:42:00,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-03-19 13:42:00,181 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:42:00,181 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:42:00,181 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-19 13:42:00,181 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:42:00,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:42:00,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1372929788, now seen corresponding path program 1 times [2022-03-19 13:42:00,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:42:00,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [823668591] [2022-03-19 13:42:00,182 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:42:00,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1372929788, now seen corresponding path program 2 times [2022-03-19 13:42:00,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:42:00,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781678438] [2022-03-19 13:42:00,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:42:00,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:42:00,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:42:00,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:42:00,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:42:00,282 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-03-19 13:42:00,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:42:00,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781678438] [2022-03-19 13:42:00,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781678438] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:42:00,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:42:00,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 13:42:00,282 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:42:00,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [823668591] [2022-03-19 13:42:00,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [823668591] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:42:00,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:42:00,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 13:42:00,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857092350] [2022-03-19 13:42:00,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:42:00,283 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 13:42:00,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:42:00,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 13:42:00,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 13:42:00,283 INFO L87 Difference]: Start difference. First operand 597 states and 913 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:42:02,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:42:02,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:42:02,533 INFO L93 Difference]: Finished difference Result 1022 states and 1563 transitions. [2022-03-19 13:42:02,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 13:42:02,533 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 99 [2022-03-19 13:42:02,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:42:02,535 INFO L225 Difference]: With dead ends: 1022 [2022-03-19 13:42:02,535 INFO L226 Difference]: Without dead ends: 621 [2022-03-19 13:42:02,536 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 13:42:02,536 INFO L912 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, 2.2s IncrementalHoareTripleChecker+Time [2022-03-19 13:42:02,537 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 363 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 215 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-19 13:42:02,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2022-03-19 13:42:02,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 621. [2022-03-19 13:42:02,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 616 states have (on average 1.5275974025974026) internal successors, (941), 616 states have internal predecessors, (941), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:42:02,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 945 transitions. [2022-03-19 13:42:02,558 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 945 transitions. Word has length 99 [2022-03-19 13:42:02,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:42:02,558 INFO L478 AbstractCegarLoop]: Abstraction has 621 states and 945 transitions. [2022-03-19 13:42:02,559 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:42:02,559 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 945 transitions. [2022-03-19 13:42:02,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-03-19 13:42:02,560 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:42:02,560 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:42:02,560 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-19 13:42:02,560 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:42:02,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:42:02,560 INFO L85 PathProgramCache]: Analyzing trace with hash -816970310, now seen corresponding path program 1 times [2022-03-19 13:42:02,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:42:02,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1678603603] [2022-03-19 13:42:02,561 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:42:02,561 INFO L85 PathProgramCache]: Analyzing trace with hash -816970310, now seen corresponding path program 2 times [2022-03-19 13:42:02,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:42:02,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039461546] [2022-03-19 13:42:02,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:42:02,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:42:02,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:42:02,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:42:02,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:42:02,701 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-19 13:42:02,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:42:02,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039461546] [2022-03-19 13:42:02,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039461546] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:42:02,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:42:02,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 13:42:02,701 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:42:02,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1678603603] [2022-03-19 13:42:02,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1678603603] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:42:02,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:42:02,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 13:42:02,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453599788] [2022-03-19 13:42:02,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:42:02,702 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 13:42:02,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:42:02,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 13:42:02,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 13:42:02,702 INFO L87 Difference]: Start difference. First operand 621 states and 945 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:42:04,711 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:42:05,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:42:05,097 INFO L93 Difference]: Finished difference Result 1245 states and 1901 transitions. [2022-03-19 13:42:05,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 13:42:05,098 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2022-03-19 13:42:05,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:42:05,100 INFO L225 Difference]: With dead ends: 1245 [2022-03-19 13:42:05,100 INFO L226 Difference]: Without dead ends: 820 [2022-03-19 13:42:05,101 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 13:42:05,102 INFO L912 BasicCegarLoop]: 318 mSDtfsCounter, 127 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:42:05,102 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 482 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 341 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 13:42:05,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2022-03-19 13:42:05,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 818. [2022-03-19 13:42:05,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 813 states have (on average 1.5276752767527675) internal successors, (1242), 813 states have internal predecessors, (1242), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:42:05,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1246 transitions. [2022-03-19 13:42:05,131 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1246 transitions. Word has length 119 [2022-03-19 13:42:05,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:42:05,131 INFO L478 AbstractCegarLoop]: Abstraction has 818 states and 1246 transitions. [2022-03-19 13:42:05,131 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:42:05,131 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1246 transitions. [2022-03-19 13:42:05,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-03-19 13:42:05,132 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:42:05,132 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:42:05,132 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-19 13:42:05,132 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:42:05,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:42:05,133 INFO L85 PathProgramCache]: Analyzing trace with hash -676421700, now seen corresponding path program 1 times [2022-03-19 13:42:05,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:42:05,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1244085515] [2022-03-19 13:42:05,134 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:42:05,134 INFO L85 PathProgramCache]: Analyzing trace with hash -676421700, now seen corresponding path program 2 times [2022-03-19 13:42:05,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:42:05,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6684876] [2022-03-19 13:42:05,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:42:05,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:42:05,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:42:05,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:42:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:42:05,276 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-19 13:42:05,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:42:05,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6684876] [2022-03-19 13:42:05,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6684876] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:42:05,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:42:05,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 13:42:05,278 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:42:05,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1244085515] [2022-03-19 13:42:05,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1244085515] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:42:05,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:42:05,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 13:42:05,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70676849] [2022-03-19 13:42:05,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:42:05,278 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 13:42:05,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:42:05,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 13:42:05,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 13:42:05,279 INFO L87 Difference]: Start difference. First operand 818 states and 1246 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:42:07,291 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:42:07,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:42:07,680 INFO L93 Difference]: Finished difference Result 1414 states and 2152 transitions. [2022-03-19 13:42:07,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 13:42:07,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2022-03-19 13:42:07,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:42:07,683 INFO L225 Difference]: With dead ends: 1414 [2022-03-19 13:42:07,683 INFO L226 Difference]: Without dead ends: 792 [2022-03-19 13:42:07,685 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 13:42:07,685 INFO L912 BasicCegarLoop]: 317 mSDtfsCounter, 130 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:42:07,685 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 481 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 340 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 13:42:07,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2022-03-19 13:42:07,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 792. [2022-03-19 13:42:07,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 787 states have (on average 1.5158831003811943) internal successors, (1193), 787 states have internal predecessors, (1193), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:42:07,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1197 transitions. [2022-03-19 13:42:07,712 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1197 transitions. Word has length 119 [2022-03-19 13:42:07,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:42:07,712 INFO L478 AbstractCegarLoop]: Abstraction has 792 states and 1197 transitions. [2022-03-19 13:42:07,712 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:42:07,712 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1197 transitions. [2022-03-19 13:42:07,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-19 13:42:07,714 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:42:07,714 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:42:07,714 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-19 13:42:07,714 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:42:07,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:42:07,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1107867599, now seen corresponding path program 1 times [2022-03-19 13:42:07,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:42:07,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1320125560] [2022-03-19 13:42:07,715 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:42:07,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1107867599, now seen corresponding path program 2 times [2022-03-19 13:42:07,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:42:07,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039277170] [2022-03-19 13:42:07,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:42:07,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:42:07,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:42:07,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:42:07,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:42:07,859 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-03-19 13:42:07,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:42:07,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039277170] [2022-03-19 13:42:07,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039277170] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:42:07,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:42:07,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:42:07,860 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:42:07,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1320125560] [2022-03-19 13:42:07,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1320125560] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:42:07,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:42:07,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:42:07,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427527337] [2022-03-19 13:42:07,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:42:07,860 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:42:07,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:42:07,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:42:07,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:42:07,861 INFO L87 Difference]: Start difference. First operand 792 states and 1197 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:42:09,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:42:10,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:42:10,373 INFO L93 Difference]: Finished difference Result 1910 states and 2864 transitions. [2022-03-19 13:42:10,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:42:10,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 143 [2022-03-19 13:42:10,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:42:10,377 INFO L225 Difference]: With dead ends: 1910 [2022-03-19 13:42:10,377 INFO L226 Difference]: Without dead ends: 1134 [2022-03-19 13:42:10,379 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:42:10,379 INFO L912 BasicCegarLoop]: 233 mSDtfsCounter, 87 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-19 13:42:10,379 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 557 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 525 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-19 13:42:10,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1134 states. [2022-03-19 13:42:10,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1134 to 876. [2022-03-19 13:42:10,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 871 states have (on average 1.521239954075775) internal successors, (1325), 871 states have internal predecessors, (1325), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:42:10,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1329 transitions. [2022-03-19 13:42:10,415 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1329 transitions. Word has length 143 [2022-03-19 13:42:10,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:42:10,415 INFO L478 AbstractCegarLoop]: Abstraction has 876 states and 1329 transitions. [2022-03-19 13:42:10,415 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:42:10,415 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1329 transitions. [2022-03-19 13:42:10,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-19 13:42:10,417 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:42:10,417 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:42:10,417 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-19 13:42:10,417 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:42:10,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:42:10,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1878601165, now seen corresponding path program 1 times [2022-03-19 13:42:10,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:42:10,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1632310036] [2022-03-19 13:42:10,418 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:42:10,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1878601165, now seen corresponding path program 2 times [2022-03-19 13:42:10,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:42:10,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349548421] [2022-03-19 13:42:10,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:42:10,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:42:11,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-19 13:42:11,692 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-19 13:42:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-19 13:42:12,063 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-19 13:42:12,063 INFO L130 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found a feasible trace [2022-03-19 13:42:12,063 INFO L614 BasicCegarLoop]: Counterexample is feasible [2022-03-19 13:42:12,067 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-19 13:42:12,069 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-19 13:42:12,071 INFO L718 BasicCegarLoop]: Path program histogram: [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2] [2022-03-19 13:42:12,073 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-19 13:42:12,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.03 01:42:12 BoogieIcfgContainer [2022-03-19 13:42:12,111 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-19 13:42:12,111 INFO L158 Benchmark]: Toolchain (without parser) took 168672.59ms. Allocated memory was 198.2MB in the beginning and 273.7MB in the end (delta: 75.5MB). Free memory was 147.4MB in the beginning and 184.5MB in the end (delta: -37.0MB). Peak memory consumption was 148.0MB. Max. memory is 8.0GB. [2022-03-19 13:42:12,111 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 198.2MB. Free memory was 165.8MB in the beginning and 165.7MB in the end (delta: 150.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-19 13:42:12,111 INFO L158 Benchmark]: CACSL2BoogieTranslator took 457.69ms. Allocated memory is still 198.2MB. Free memory was 147.1MB in the beginning and 154.6MB in the end (delta: -7.5MB). Peak memory consumption was 12.9MB. Max. memory is 8.0GB. [2022-03-19 13:42:12,111 INFO L158 Benchmark]: Boogie Preprocessor took 91.62ms. Allocated memory is still 198.2MB. Free memory was 154.6MB in the beginning and 147.7MB in the end (delta: 6.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-03-19 13:42:12,112 INFO L158 Benchmark]: RCFGBuilder took 2041.92ms. Allocated memory was 198.2MB in the beginning and 273.7MB in the end (delta: 75.5MB). Free memory was 147.7MB in the beginning and 191.8MB in the end (delta: -44.0MB). Peak memory consumption was 36.1MB. Max. memory is 8.0GB. [2022-03-19 13:42:12,112 INFO L158 Benchmark]: TraceAbstraction took 166067.87ms. Allocated memory is still 273.7MB. Free memory was 191.2MB in the beginning and 184.5MB in the end (delta: 6.8MB). Peak memory consumption was 114.8MB. Max. memory is 8.0GB. [2022-03-19 13:42:12,112 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 198.2MB. Free memory was 165.8MB in the beginning and 165.7MB in the end (delta: 150.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 457.69ms. Allocated memory is still 198.2MB. Free memory was 147.1MB in the beginning and 154.6MB in the end (delta: -7.5MB). Peak memory consumption was 12.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 91.62ms. Allocated memory is still 198.2MB. Free memory was 154.6MB in the beginning and 147.7MB in the end (delta: 6.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 2041.92ms. Allocated memory was 198.2MB in the beginning and 273.7MB in the end (delta: 75.5MB). Free memory was 147.7MB in the beginning and 191.8MB in the end (delta: -44.0MB). Peak memory consumption was 36.1MB. Max. memory is 8.0GB. * TraceAbstraction took 166067.87ms. Allocated memory is still 273.7MB. Free memory was 191.2MB in the beginning and 184.5MB in the end (delta: 6.8MB). Peak memory consumption was 114.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1668]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 1353. Possible FailurePath: [L1054] static int init = 1; [L1055] static SSL_METHOD SSLv3_client_data ; [L1077] SSL *s = (SSL*)malloc(sizeof(SSL)) ; [L1081] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1082] s->ctx = malloc(sizeof(SSL_CTX)) [L1083] s->session = malloc(sizeof(SSL_SESSION)) [L1084] s->state = 12292 [L1085] s->version = __VERIFIER_nondet_int() [L1087] s->info_callback = (void (*)()) __VERIFIER_nondet_ulong() [L1088] EXPR s->ctx [L1088] (s->ctx)->info_callback = (void (*)()) __VERIFIER_nondet_ulong() [L1089] s->init_buf = (BUF_MEM *)__VERIFIER_nondet_ulong() [L1090] s->bbio = (BIO *) __VERIFIER_nondet_ulong() [L1091] s->wbio = (BIO *) __VERIFIER_nondet_ulong() [L1092] EXPR s->s3 [L1092] (s->s3)->flags = __VERIFIER_nondet_long() [L1093] EXPR s->s3 [L1093] (s->s3)->tmp.cert_req = __VERIFIER_nondet_int() [L1094] EXPR s->s3 [L1094] (s->s3)->tmp.new_cipher = malloc(sizeof(struct ssl_cipher_st)) [L1095] EXPR s->s3 [L1095] EXPR (s->s3)->tmp.new_cipher [L1095] ((s->s3)->tmp.new_cipher)->algorithms = __VERIFIER_nondet_ulong() [L1096] EXPR s->s3 [L1096] (s->s3)->tmp.next_state = __VERIFIER_nondet_int() [L1098] CALL ssl3_connect(s) [L1104] BUF_MEM *buf = (BUF_MEM *)__VERIFIER_nondet_ulong(); [L1105] unsigned long tmp ; [L1106] unsigned long l ; [L1107] long num1 ; [L1108] void (*cb)() ; [L1109] int ret ; [L1110] int new_state ; [L1111] int state ; [L1112] int skip ; [L1113] int tmp___1 = __VERIFIER_nondet_int() ; [L1114] int tmp___2 = __VERIFIER_nondet_int() ; [L1115] int tmp___3 ; [L1116] int tmp___4 ; [L1117] int tmp___5 ; [L1118] int tmp___6 ; [L1119] int tmp___7 ; [L1120] int tmp___8 ; [L1121] long tmp___9 ; [L1123] int blastFlag ; [L1126] blastFlag = 0 [L1127] s->hit=__VERIFIER_nondet_int () [L1128] s->state = 12292 [L1129] tmp = __VERIFIER_nondet_int() [L1130] cb = (void (*)())((void *)0) [L1131] ret = -1 [L1132] skip = 0 [L1133] EXPR s->info_callback [L1133] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1134] EXPR s->info_callback [L1134] cb = s->info_callback [L1142] EXPR s->in_handshake [L1142] s->in_handshake += 1 [L1143] COND FALSE !(tmp___1 & 12288) [L1153] COND TRUE 1 [L1155] EXPR s->state [L1155] state = s->state [L1156] EXPR s->state [L1156] COND TRUE s->state == 12292 [L1259] s->new_session = 1 [L1260] s->state = 4096 [L1261] EXPR s->ctx [L1261] EXPR (s->ctx)->stats.sess_connect_renegotiate [L1261] (s->ctx)->stats.sess_connect_renegotiate += 1 [L1266] s->server = 0 [L1267] COND TRUE (unsigned long )cb != (unsigned long )((void *)0) [L1272] EXPR s->version [L1272] COND FALSE !((s->version & 65280) != 768) [L1278] s->type = 4096 [L1279] EXPR s->init_buf [L1279] COND FALSE !((unsigned long )s->init_buf == (unsigned long )((void *)0)) [L1291] tmp___4 = __VERIFIER_nondet_int() [L1292] COND FALSE !(! tmp___4) [L1298] tmp___5 = __VERIFIER_nondet_int() [L1299] COND FALSE !(! tmp___5) [L1305] s->state = 4368 [L1306] EXPR s->ctx [L1306] EXPR (s->ctx)->stats.sess_connect [L1306] (s->ctx)->stats.sess_connect += 1 [L1307] s->init_num = 0 [L1627] EXPR s->s3 [L1627] EXPR (s->s3)->tmp.reuse_message [L1627] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1656] skip = 0 [L1153] COND TRUE 1 [L1155] EXPR s->state [L1155] state = s->state [L1156] EXPR s->state [L1156] COND FALSE !(s->state == 12292) [L1159] EXPR s->state [L1159] COND FALSE !(s->state == 16384) [L1162] EXPR s->state [L1162] COND FALSE !(s->state == 4096) [L1165] EXPR s->state [L1165] COND FALSE !(s->state == 20480) [L1168] EXPR s->state [L1168] COND FALSE !(s->state == 4099) [L1171] EXPR s->state [L1171] COND TRUE s->state == 4368 [L1311] s->shutdown = 0 [L1312] ret = __VERIFIER_nondet_int() [L1313] COND TRUE blastFlag == 0 [L1314] blastFlag = 1 [L1318] COND FALSE !(ret <= 0) [L1323] s->state = 4384 [L1324] s->init_num = 0 [L1325] EXPR s->bbio [L1325] EXPR s->wbio [L1325] COND TRUE (unsigned long )s->bbio != (unsigned long )s->wbio [L1627] EXPR s->s3 [L1627] EXPR (s->s3)->tmp.reuse_message [L1627] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1656] skip = 0 [L1153] COND TRUE 1 [L1155] EXPR s->state [L1155] state = s->state [L1156] EXPR s->state [L1156] COND FALSE !(s->state == 12292) [L1159] EXPR s->state [L1159] COND FALSE !(s->state == 16384) [L1162] EXPR s->state [L1162] COND FALSE !(s->state == 4096) [L1165] EXPR s->state [L1165] COND FALSE !(s->state == 20480) [L1168] EXPR s->state [L1168] COND FALSE !(s->state == 4099) [L1171] EXPR s->state [L1171] COND FALSE !(s->state == 4368) [L1174] EXPR s->state [L1174] COND FALSE !(s->state == 4369) [L1177] EXPR s->state [L1177] COND TRUE s->state == 4384 [L1333] ret = __VERIFIER_nondet_int() [L1334] COND TRUE blastFlag == 1 [L1335] blastFlag = 2 [L1339] COND FALSE !(ret <= 0) [L1344] s->hit [L1344] COND FALSE !(s->hit) [L1347] s->state = 4400 [L1349] s->init_num = 0 [L1627] EXPR s->s3 [L1627] EXPR (s->s3)->tmp.reuse_message [L1627] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1656] skip = 0 [L1153] COND TRUE 1 [L1155] EXPR s->state [L1155] state = s->state [L1156] EXPR s->state [L1156] COND FALSE !(s->state == 12292) [L1159] EXPR s->state [L1159] COND FALSE !(s->state == 16384) [L1162] EXPR s->state [L1162] COND FALSE !(s->state == 4096) [L1165] EXPR s->state [L1165] COND FALSE !(s->state == 20480) [L1168] EXPR s->state [L1168] COND FALSE !(s->state == 4099) [L1171] EXPR s->state [L1171] COND FALSE !(s->state == 4368) [L1174] EXPR s->state [L1174] COND FALSE !(s->state == 4369) [L1177] EXPR s->state [L1177] COND FALSE !(s->state == 4384) [L1180] EXPR s->state [L1180] COND FALSE !(s->state == 4385) [L1183] EXPR s->state [L1183] COND TRUE s->state == 4400 [L1353] EXPR s->s3 [L1353] EXPR (s->s3)->tmp.new_cipher [L1353] EXPR ((s->s3)->tmp.new_cipher)->algorithms [L1353] COND FALSE !(((s->s3)->tmp.new_cipher)->algorithms & 256UL) [L1356] ret = __VERIFIER_nondet_int() [L1357] COND TRUE blastFlag == 2 [L1358] blastFlag = 3 [L1362] COND FALSE !(ret <= 0) [L1368] s->state = 4416 [L1369] s->init_num = 0 [L1627] EXPR s->s3 [L1627] EXPR (s->s3)->tmp.reuse_message [L1627] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1656] skip = 0 [L1153] COND TRUE 1 [L1155] EXPR s->state [L1155] state = s->state [L1156] EXPR s->state [L1156] COND FALSE !(s->state == 12292) [L1159] EXPR s->state [L1159] COND FALSE !(s->state == 16384) [L1162] EXPR s->state [L1162] COND FALSE !(s->state == 4096) [L1165] EXPR s->state [L1165] COND FALSE !(s->state == 20480) [L1168] EXPR s->state [L1168] COND FALSE !(s->state == 4099) [L1171] EXPR s->state [L1171] COND FALSE !(s->state == 4368) [L1174] EXPR s->state [L1174] COND FALSE !(s->state == 4369) [L1177] EXPR s->state [L1177] COND FALSE !(s->state == 4384) [L1180] EXPR s->state [L1180] COND FALSE !(s->state == 4385) [L1183] EXPR s->state [L1183] COND FALSE !(s->state == 4400) [L1186] EXPR s->state [L1186] COND FALSE !(s->state == 4401) [L1189] EXPR s->state [L1189] COND TRUE s->state == 4416 [L1373] ret = __VERIFIER_nondet_int() [L1374] COND TRUE blastFlag == 3 [L1375] blastFlag = 4 [L1379] COND FALSE !(ret <= 0) [L1384] s->state = 4432 [L1385] s->init_num = 0 [L1386] tmp___6 = __VERIFIER_nondet_int() [L1387] COND FALSE !(! tmp___6) [L1627] EXPR s->s3 [L1627] EXPR (s->s3)->tmp.reuse_message [L1627] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1656] skip = 0 [L1153] COND TRUE 1 [L1155] EXPR s->state [L1155] state = s->state [L1156] EXPR s->state [L1156] COND FALSE !(s->state == 12292) [L1159] EXPR s->state [L1159] COND FALSE !(s->state == 16384) [L1162] EXPR s->state [L1162] COND FALSE !(s->state == 4096) [L1165] EXPR s->state [L1165] COND FALSE !(s->state == 20480) [L1168] EXPR s->state [L1168] COND FALSE !(s->state == 4099) [L1171] EXPR s->state [L1171] COND FALSE !(s->state == 4368) [L1174] EXPR s->state [L1174] COND FALSE !(s->state == 4369) [L1177] EXPR s->state [L1177] COND FALSE !(s->state == 4384) [L1180] EXPR s->state [L1180] COND FALSE !(s->state == 4385) [L1183] EXPR s->state [L1183] COND FALSE !(s->state == 4400) [L1186] EXPR s->state [L1186] COND FALSE !(s->state == 4401) [L1189] EXPR s->state [L1189] COND FALSE !(s->state == 4416) [L1192] EXPR s->state [L1192] COND FALSE !(s->state == 4417) [L1195] EXPR s->state [L1195] COND TRUE s->state == 4432 [L1396] ret = __VERIFIER_nondet_int() [L1397] COND FALSE !(blastFlag == 5) [L1402] COND FALSE !(ret <= 0) [L1407] s->state = 4448 [L1408] s->init_num = 0 [L1627] EXPR s->s3 [L1627] EXPR (s->s3)->tmp.reuse_message [L1627] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1656] skip = 0 [L1153] COND TRUE 1 [L1155] EXPR s->state [L1155] state = s->state [L1156] EXPR s->state [L1156] COND FALSE !(s->state == 12292) [L1159] EXPR s->state [L1159] COND FALSE !(s->state == 16384) [L1162] EXPR s->state [L1162] COND FALSE !(s->state == 4096) [L1165] EXPR s->state [L1165] COND FALSE !(s->state == 20480) [L1168] EXPR s->state [L1168] COND FALSE !(s->state == 4099) [L1171] EXPR s->state [L1171] COND FALSE !(s->state == 4368) [L1174] EXPR s->state [L1174] COND FALSE !(s->state == 4369) [L1177] EXPR s->state [L1177] COND FALSE !(s->state == 4384) [L1180] EXPR s->state [L1180] COND FALSE !(s->state == 4385) [L1183] EXPR s->state [L1183] COND FALSE !(s->state == 4400) [L1186] EXPR s->state [L1186] COND FALSE !(s->state == 4401) [L1189] EXPR s->state [L1189] COND FALSE !(s->state == 4416) [L1192] EXPR s->state [L1192] COND FALSE !(s->state == 4417) [L1195] EXPR s->state [L1195] COND FALSE !(s->state == 4432) [L1198] EXPR s->state [L1198] COND FALSE !(s->state == 4433) [L1201] EXPR s->state [L1201] COND TRUE s->state == 4448 [L1412] ret = __VERIFIER_nondet_int() [L1413] COND TRUE blastFlag == 4 [L1668] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 171 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 166.0s, OverallIterations: 18, TraceHistogramMax: 7, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 40.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 17 mSolverCounterUnknown, 1443 SdHoareTripleChecker+Valid, 40.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1443 mSDsluCounter, 6933 SdHoareTripleChecker+Invalid, 38.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3760 mSDsCounter, 346 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6043 IncrementalHoareTripleChecker+Invalid, 6406 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 346 mSolverCounterUnsat, 3173 mSDtfsCounter, 6043 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=876occurred in iteration=17, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 17 MinimizatonAttempts, 1057 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-03-19 13:42:12,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...