/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.01.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-15 03:09:52,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 03:09:52,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 03:09:52,055 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-15 03:09:52,055 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-15 03:09:52,058 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-15 03:09:52,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-15 03:09:52,063 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-15 03:09:52,064 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-15 03:09:52,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-15 03:09:52,066 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-15 03:09:52,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-15 03:09:52,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-15 03:09:52,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-15 03:09:52,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-15 03:09:52,071 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-15 03:09:52,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-15 03:09:52,073 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-15 03:09:52,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-15 03:09:52,079 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-15 03:09:52,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-15 03:09:52,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-15 03:09:52,083 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-15 03:09:52,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-15 03:09:52,090 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-15 03:09:52,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 03:09:52,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 03:09:52,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 03:09:52,100 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-02-15 03:09:52,111 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 03:09:52,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 03:09:52,113 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 03:09:52,113 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-15 03:09:52,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 03:09:52,114 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-15 03:09:52,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 03:09:52,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 03:09:52,114 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 03:09:52,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 03:09:52,115 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-15 03:09:52,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 03:09:52,115 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 03:09:52,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 03:09:52,116 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 03:09:52,116 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 03:09:52,116 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 03:09:52,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 03:09:52,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 03:09:52,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 03:09:52,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-15 03:09:52,116 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-15 03:09:52,117 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-02-15 03:09:52,117 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-15 03:09:52,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 03:09:52,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 03:09:52,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 03:09:52,393 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 03:09:52,393 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 03:09:52,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.01.i.cil-2.c [2022-02-15 03:09:52,568 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e84bf6171/bee84fe3c6ab46ea98da5f3aacced562/FLAGbacde4e4e [2022-02-15 03:09:53,088 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 03:09:53,089 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.01.i.cil-2.c [2022-02-15 03:09:53,106 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e84bf6171/bee84fe3c6ab46ea98da5f3aacced562/FLAGbacde4e4e [2022-02-15 03:09:53,375 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e84bf6171/bee84fe3c6ab46ea98da5f3aacced562 [2022-02-15 03:09:53,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 03:09:53,379 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-15 03:09:53,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 03:09:53,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 03:09:53,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 03:09:53,390 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 03:09:53" (1/1) ... [2022-02-15 03:09:53,391 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d5d087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:09:53, skipping insertion in model container [2022-02-15 03:09:53,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 03:09:53" (1/1) ... [2022-02-15 03:09:53,398 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 03:09:53,467 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 03:09:53,878 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_srvr.blast.01.i.cil-2.c[72913,72926] [2022-02-15 03:09:53,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 03:09:53,909 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 03:09:54,071 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_srvr.blast.01.i.cil-2.c[72913,72926] [2022-02-15 03:09:54,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 03:09:54,100 INFO L208 MainTranslator]: Completed translation [2022-02-15 03:09:54,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:09:54 WrapperNode [2022-02-15 03:09:54,101 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 03:09:54,102 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 03:09:54,102 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 03:09:54,103 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 03:09:54,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:09:54" (1/1) ... [2022-02-15 03:09:54,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:09:54" (1/1) ... [2022-02-15 03:09:54,153 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:09:54" (1/1) ... [2022-02-15 03:09:54,153 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:09:54" (1/1) ... [2022-02-15 03:09:54,198 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:09:54" (1/1) ... [2022-02-15 03:09:54,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:09:54" (1/1) ... [2022-02-15 03:09:54,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:09:54" (1/1) ... [2022-02-15 03:09:54,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 03:09:54,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 03:09:54,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 03:09:54,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 03:09:54,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:09:54" (1/1) ... [2022-02-15 03:09:54,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 03:09:54,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 03:09:54,277 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) [2022-02-15 03:09:54,303 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 [2022-02-15 03:09:54,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-15 03:09:54,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 03:09:54,332 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-15 03:09:54,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-02-15 03:09:54,332 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-02-15 03:09:54,333 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-15 03:09:54,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-15 03:09:54,333 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-15 03:09:54,334 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-15 03:09:54,334 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-15 03:09:54,334 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-15 03:09:54,334 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-15 03:09:54,335 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-15 03:09:54,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 03:09:54,336 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-15 03:09:54,337 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-15 03:09:54,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-15 03:09:54,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-15 03:09:54,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-15 03:09:54,338 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-15 03:09:54,338 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-02-15 03:09:54,338 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-15 03:09:54,338 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-15 03:09:54,338 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-02-15 03:09:54,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-15 03:09:54,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-15 03:09:54,339 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-15 03:09:54,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-15 03:09:54,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 03:09:54,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-15 03:09:54,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 03:09:54,339 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-15 03:09:54,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-15 03:09:54,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-15 03:09:54,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 03:09:54,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 03:09:54,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-15 03:09:54,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-15 03:09:54,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-15 03:09:54,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-15 03:09:54,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 03:09:54,590 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 03:09:54,592 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 03:09:57,038 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-15 03:09:57,471 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-02-15 03:09:57,471 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-02-15 03:09:57,482 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 03:09:57,490 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 03:09:57,490 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-15 03:09:57,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 03:09:57 BoogieIcfgContainer [2022-02-15 03:09:57,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 03:09:57,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 03:09:57,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 03:09:57,497 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 03:09:57,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 03:09:53" (1/3) ... [2022-02-15 03:09:57,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d32ff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 03:09:57, skipping insertion in model container [2022-02-15 03:09:57,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:09:54" (2/3) ... [2022-02-15 03:09:57,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d32ff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 03:09:57, skipping insertion in model container [2022-02-15 03:09:57,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 03:09:57" (3/3) ... [2022-02-15 03:09:57,499 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.01.i.cil-2.c [2022-02-15 03:09:57,504 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-15 03:09:57,504 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 03:09:57,544 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 03:09:57,550 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, 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, mLoopAccelerationTechnique=JORDAN [2022-02-15 03:09:57,550 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-15 03:09:57,578 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 147 states have (on average 1.6870748299319729) internal successors, (248), 148 states have internal predecessors, (248), 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) [2022-02-15 03:09:57,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-15 03:09:57,602 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:09:57,602 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:09:57,603 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:09:57,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:09:57,608 INFO L85 PathProgramCache]: Analyzing trace with hash 740864289, now seen corresponding path program 1 times [2022-02-15 03:09:57,614 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:09:57,614 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1351003759] [2022-02-15 03:09:57,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:09:57,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:09:57,681 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:09:57,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:09:58,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:09:58,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:09:58,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:09:58,171 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:09:58,172 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1351003759] [2022-02-15 03:09:58,173 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1351003759] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:09:58,173 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:09:58,173 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:09:58,174 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556347901] [2022-02-15 03:09:58,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:09:58,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:09:58,178 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:09:58,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:09:58,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:09:58,209 INFO L87 Difference]: Start difference. First operand has 155 states, 147 states have (on average 1.6870748299319729) internal successors, (248), 148 states have internal predecessors, (248), 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 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:01,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:10:02,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:10:02,065 INFO L93 Difference]: Finished difference Result 328 states and 543 transitions. [2022-02-15 03:10:02,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:10:02,073 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 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 52 [2022-02-15 03:10:02,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:10:02,081 INFO L225 Difference]: With dead ends: 328 [2022-02-15 03:10:02,081 INFO L226 Difference]: Without dead ends: 167 [2022-02-15 03:10:02,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:10:02,087 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 33 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-02-15 03:10:02,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 583 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-02-15 03:10:02,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-02-15 03:10:02,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 150. [2022-02-15 03:10:02,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.5379310344827586) internal successors, (223), 145 states have internal predecessors, (223), 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) [2022-02-15 03:10:02,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 227 transitions. [2022-02-15 03:10:02,180 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 227 transitions. Word has length 52 [2022-02-15 03:10:02,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:10:02,181 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 227 transitions. [2022-02-15 03:10:02,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:02,181 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 227 transitions. [2022-02-15 03:10:02,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-15 03:10:02,183 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:10:02,183 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:10:02,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 03:10:02,184 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:10:02,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:10:02,185 INFO L85 PathProgramCache]: Analyzing trace with hash -444444622, now seen corresponding path program 1 times [2022-02-15 03:10:02,185 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:10:02,185 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2022396375] [2022-02-15 03:10:02,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:10:02,213 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:10:02,213 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:10:02,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:10:02,218 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:10:02,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:02,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:10:02,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:02,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:10:02,471 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:10:02,472 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2022396375] [2022-02-15 03:10:02,473 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2022396375] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:10:02,473 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:10:02,473 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:10:02,473 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632483567] [2022-02-15 03:10:02,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:10:02,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:10:02,475 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:10:02,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:10:02,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:10:02,480 INFO L87 Difference]: Start difference. First operand 150 states and 227 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:04,500 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 [] [2022-02-15 03:10:04,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:10:04,978 INFO L93 Difference]: Finished difference Result 291 states and 437 transitions. [2022-02-15 03:10:04,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:10:04,979 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-02-15 03:10:04,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:10:04,980 INFO L225 Difference]: With dead ends: 291 [2022-02-15 03:10:04,980 INFO L226 Difference]: Without dead ends: 167 [2022-02-15 03:10:04,981 INFO L932 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 [2022-02-15 03:10:04,982 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 24 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:10:04,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 462 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 353 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 03:10:04,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-02-15 03:10:05,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 150. [2022-02-15 03:10:05,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 145 states have (on average 1.5310344827586206) internal successors, (222), 145 states have internal predecessors, (222), 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) [2022-02-15 03:10:05,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 226 transitions. [2022-02-15 03:10:05,011 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 226 transitions. Word has length 65 [2022-02-15 03:10:05,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:10:05,011 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 226 transitions. [2022-02-15 03:10:05,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:05,011 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 226 transitions. [2022-02-15 03:10:05,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-15 03:10:05,013 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:10:05,013 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:10:05,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 03:10:05,014 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:10:05,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:10:05,014 INFO L85 PathProgramCache]: Analyzing trace with hash 795477037, now seen corresponding path program 1 times [2022-02-15 03:10:05,015 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:10:05,015 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1802664590] [2022-02-15 03:10:05,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:10:05,021 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:10:05,022 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:10:05,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:10:05,026 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:10:05,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:05,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:10:05,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:05,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:10:05,234 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:10:05,234 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1802664590] [2022-02-15 03:10:05,235 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1802664590] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:10:05,235 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:10:05,235 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:10:05,235 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179687511] [2022-02-15 03:10:05,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:10:05,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:10:05,236 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:10:05,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:10:05,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:10:05,237 INFO L87 Difference]: Start difference. First operand 150 states and 226 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:07,248 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 [] [2022-02-15 03:10:07,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:10:07,873 INFO L93 Difference]: Finished difference Result 390 states and 594 transitions. [2022-02-15 03:10:07,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:10:07,873 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-02-15 03:10:07,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:10:07,875 INFO L225 Difference]: With dead ends: 390 [2022-02-15 03:10:07,875 INFO L226 Difference]: Without dead ends: 266 [2022-02-15 03:10:07,876 INFO L932 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 [2022-02-15 03:10:07,877 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 139 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-02-15 03:10:07,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 321 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-02-15 03:10:07,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-02-15 03:10:07,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 167. [2022-02-15 03:10:07,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 162 states have (on average 1.537037037037037) internal successors, (249), 162 states have internal predecessors, (249), 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) [2022-02-15 03:10:07,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 253 transitions. [2022-02-15 03:10:07,897 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 253 transitions. Word has length 66 [2022-02-15 03:10:07,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:10:07,897 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 253 transitions. [2022-02-15 03:10:07,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:07,897 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 253 transitions. [2022-02-15 03:10:07,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-15 03:10:07,907 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:10:07,907 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:10:07,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 03:10:07,908 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:10:07,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:10:07,909 INFO L85 PathProgramCache]: Analyzing trace with hash -498657998, now seen corresponding path program 1 times [2022-02-15 03:10:07,909 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:10:07,909 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1744926036] [2022-02-15 03:10:07,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:10:07,915 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:10:07,915 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:10:07,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:10:07,920 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:10:07,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:08,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:10:08,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:08,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:10:08,089 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:10:08,090 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1744926036] [2022-02-15 03:10:08,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1744926036] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:10:08,091 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:10:08,091 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:10:08,091 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123782498] [2022-02-15 03:10:08,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:10:08,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:10:08,091 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:10:08,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:10:08,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:10:08,092 INFO L87 Difference]: Start difference. First operand 167 states and 253 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:10,104 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 [] [2022-02-15 03:10:10,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:10:10,520 INFO L93 Difference]: Finished difference Result 322 states and 488 transitions. [2022-02-15 03:10:10,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:10:10,521 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-02-15 03:10:10,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:10:10,522 INFO L225 Difference]: With dead ends: 322 [2022-02-15 03:10:10,522 INFO L226 Difference]: Without dead ends: 181 [2022-02-15 03:10:10,523 INFO L932 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 [2022-02-15 03:10:10,524 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 20 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:10:10,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 468 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 347 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 03:10:10,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-02-15 03:10:10,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 167. [2022-02-15 03:10:10,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 162 states have (on average 1.5308641975308641) internal successors, (248), 162 states have internal predecessors, (248), 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) [2022-02-15 03:10:10,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 252 transitions. [2022-02-15 03:10:10,536 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 252 transitions. Word has length 66 [2022-02-15 03:10:10,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:10:10,536 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 252 transitions. [2022-02-15 03:10:10,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:10,537 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 252 transitions. [2022-02-15 03:10:10,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-15 03:10:10,538 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:10:10,538 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:10:10,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-15 03:10:10,538 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:10:10,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:10:10,539 INFO L85 PathProgramCache]: Analyzing trace with hash -2086075870, now seen corresponding path program 1 times [2022-02-15 03:10:10,539 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:10:10,539 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [145641775] [2022-02-15 03:10:10,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:10:10,548 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:10:10,548 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:10:10,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:10:10,551 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:10:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:10,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:10:10,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:10,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:10:10,701 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:10:10,701 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [145641775] [2022-02-15 03:10:10,701 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [145641775] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:10:10,701 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:10:10,701 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:10:10,701 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133054340] [2022-02-15 03:10:10,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:10:10,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:10:10,703 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:10:10,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:10:10,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:10:10,704 INFO L87 Difference]: Start difference. First operand 167 states and 252 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:12,723 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 [] [2022-02-15 03:10:13,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:10:13,236 INFO L93 Difference]: Finished difference Result 321 states and 486 transitions. [2022-02-15 03:10:13,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:10:13,237 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 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 67 [2022-02-15 03:10:13,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:10:13,238 INFO L225 Difference]: With dead ends: 321 [2022-02-15 03:10:13,238 INFO L226 Difference]: Without dead ends: 180 [2022-02-15 03:10:13,239 INFO L932 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 [2022-02-15 03:10:13,240 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 26 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:10:13,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 470 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 345 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 03:10:13,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-02-15 03:10:13,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 167. [2022-02-15 03:10:13,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 162 states have (on average 1.5246913580246915) internal successors, (247), 162 states have internal predecessors, (247), 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) [2022-02-15 03:10:13,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 251 transitions. [2022-02-15 03:10:13,253 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 251 transitions. Word has length 67 [2022-02-15 03:10:13,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:10:13,253 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 251 transitions. [2022-02-15 03:10:13,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:13,253 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 251 transitions. [2022-02-15 03:10:13,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-15 03:10:13,254 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:10:13,255 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:10:13,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-15 03:10:13,255 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:10:13,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:10:13,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1877545714, now seen corresponding path program 1 times [2022-02-15 03:10:13,256 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:10:13,256 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2004892650] [2022-02-15 03:10:13,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:10:13,265 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:10:13,265 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:10:13,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:10:13,269 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:10:13,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:13,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:10:13,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:13,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:10:13,400 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:10:13,401 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2004892650] [2022-02-15 03:10:13,401 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2004892650] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:10:13,401 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:10:13,401 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:10:13,401 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028254406] [2022-02-15 03:10:13,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:10:13,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:10:13,402 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:10:13,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:10:13,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:10:13,403 INFO L87 Difference]: Start difference. First operand 167 states and 251 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:15,423 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 [] [2022-02-15 03:10:16,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:10:16,077 INFO L93 Difference]: Finished difference Result 407 states and 618 transitions. [2022-02-15 03:10:16,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:10:16,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 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 67 [2022-02-15 03:10:16,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:10:16,080 INFO L225 Difference]: With dead ends: 407 [2022-02-15 03:10:16,080 INFO L226 Difference]: Without dead ends: 266 [2022-02-15 03:10:16,081 INFO L932 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 [2022-02-15 03:10:16,082 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 143 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-02-15 03:10:16,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 321 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-02-15 03:10:16,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-02-15 03:10:16,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 167. [2022-02-15 03:10:16,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 162 states have (on average 1.5123456790123457) internal successors, (245), 162 states have internal predecessors, (245), 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) [2022-02-15 03:10:16,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 249 transitions. [2022-02-15 03:10:16,094 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 249 transitions. Word has length 67 [2022-02-15 03:10:16,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:10:16,094 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 249 transitions. [2022-02-15 03:10:16,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:16,095 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 249 transitions. [2022-02-15 03:10:16,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-15 03:10:16,096 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:10:16,096 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:10:16,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-15 03:10:16,096 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:10:16,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:10:16,097 INFO L85 PathProgramCache]: Analyzing trace with hash -175906935, now seen corresponding path program 1 times [2022-02-15 03:10:16,097 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:10:16,097 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1089200700] [2022-02-15 03:10:16,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:10:16,106 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:10:16,106 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:10:16,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:10:16,111 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:10:16,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:16,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:10:16,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:16,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:10:16,255 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:10:16,255 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1089200700] [2022-02-15 03:10:16,255 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1089200700] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:10:16,255 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:10:16,255 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:10:16,255 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3342741] [2022-02-15 03:10:16,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:10:16,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:10:16,256 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:10:16,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:10:16,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:10:16,257 INFO L87 Difference]: Start difference. First operand 167 states and 249 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:18,268 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 [] [2022-02-15 03:10:18,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:10:18,716 INFO L93 Difference]: Finished difference Result 321 states and 482 transitions. [2022-02-15 03:10:18,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:10:18,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 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 68 [2022-02-15 03:10:18,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:10:18,718 INFO L225 Difference]: With dead ends: 321 [2022-02-15 03:10:18,718 INFO L226 Difference]: Without dead ends: 180 [2022-02-15 03:10:18,718 INFO L932 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 [2022-02-15 03:10:18,719 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 22 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:10:18,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 470 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 345 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 03:10:18,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-02-15 03:10:18,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 167. [2022-02-15 03:10:18,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 162 states have (on average 1.5061728395061729) internal successors, (244), 162 states have internal predecessors, (244), 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) [2022-02-15 03:10:18,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 248 transitions. [2022-02-15 03:10:18,729 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 248 transitions. Word has length 68 [2022-02-15 03:10:18,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:10:18,729 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 248 transitions. [2022-02-15 03:10:18,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:18,729 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 248 transitions. [2022-02-15 03:10:18,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-15 03:10:18,730 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:10:18,730 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:10:18,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-15 03:10:18,731 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:10:18,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:10:18,731 INFO L85 PathProgramCache]: Analyzing trace with hash -167412983, now seen corresponding path program 1 times [2022-02-15 03:10:18,731 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:10:18,732 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1896309285] [2022-02-15 03:10:18,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:10:18,739 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:10:18,739 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:10:18,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:10:18,744 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:10:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:18,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:10:18,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:18,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:10:18,905 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:10:18,905 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1896309285] [2022-02-15 03:10:18,905 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1896309285] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:10:18,905 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:10:18,905 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:10:18,906 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770699751] [2022-02-15 03:10:18,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:10:18,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:10:18,906 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:10:18,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:10:18,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:10:18,907 INFO L87 Difference]: Start difference. First operand 167 states and 248 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:20,921 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 [] [2022-02-15 03:10:21,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:10:21,305 INFO L93 Difference]: Finished difference Result 321 states and 481 transitions. [2022-02-15 03:10:21,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:10:21,306 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 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 69 [2022-02-15 03:10:21,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:10:21,307 INFO L225 Difference]: With dead ends: 321 [2022-02-15 03:10:21,307 INFO L226 Difference]: Without dead ends: 180 [2022-02-15 03:10:21,308 INFO L932 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 [2022-02-15 03:10:21,308 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 20 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:10:21,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 470 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 345 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 03:10:21,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-02-15 03:10:21,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 167. [2022-02-15 03:10:21,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 162 states have (on average 1.5) internal successors, (243), 162 states have internal predecessors, (243), 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) [2022-02-15 03:10:21,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 247 transitions. [2022-02-15 03:10:21,317 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 247 transitions. Word has length 69 [2022-02-15 03:10:21,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:10:21,317 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 247 transitions. [2022-02-15 03:10:21,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:21,317 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 247 transitions. [2022-02-15 03:10:21,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-15 03:10:21,318 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:10:21,318 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:10:21,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-15 03:10:21,318 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:10:21,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:10:21,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1642777843, now seen corresponding path program 1 times [2022-02-15 03:10:21,319 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:10:21,319 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1623992834] [2022-02-15 03:10:21,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:10:21,324 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:10:21,324 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:10:21,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:10:21,328 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:10:21,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:21,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:10:21,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:21,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:10:21,441 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:10:21,442 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1623992834] [2022-02-15 03:10:21,442 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1623992834] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:10:21,442 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:10:21,442 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:10:21,442 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875806152] [2022-02-15 03:10:21,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:10:21,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:10:21,442 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:10:21,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:10:21,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:10:21,443 INFO L87 Difference]: Start difference. First operand 167 states and 247 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:23,453 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 [] [2022-02-15 03:10:23,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:10:23,959 INFO L93 Difference]: Finished difference Result 351 states and 527 transitions. [2022-02-15 03:10:23,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:10:23,960 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 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 69 [2022-02-15 03:10:23,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:10:23,962 INFO L225 Difference]: With dead ends: 351 [2022-02-15 03:10:23,962 INFO L226 Difference]: Without dead ends: 210 [2022-02-15 03:10:23,962 INFO L932 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 [2022-02-15 03:10:23,963 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 32 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:10:23,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 510 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 403 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 03:10:23,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-02-15 03:10:23,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 189. [2022-02-15 03:10:23,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 184 states have (on average 1.516304347826087) internal successors, (279), 184 states have internal predecessors, (279), 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) [2022-02-15 03:10:23,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 283 transitions. [2022-02-15 03:10:23,972 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 283 transitions. Word has length 69 [2022-02-15 03:10:23,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:10:23,972 INFO L470 AbstractCegarLoop]: Abstraction has 189 states and 283 transitions. [2022-02-15 03:10:23,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:23,972 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 283 transitions. [2022-02-15 03:10:23,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-02-15 03:10:23,973 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:10:23,973 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:10:23,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-15 03:10:23,973 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:10:23,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:10:23,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1106801116, now seen corresponding path program 1 times [2022-02-15 03:10:23,974 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:10:23,974 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [887361853] [2022-02-15 03:10:23,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:10:23,983 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:10:23,983 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:10:23,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:10:23,988 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:10:24,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:24,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:10:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:24,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:10:24,112 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:10:24,112 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [887361853] [2022-02-15 03:10:24,112 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [887361853] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:10:24,112 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:10:24,113 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:10:24,113 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970882340] [2022-02-15 03:10:24,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:10:24,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:10:24,113 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:10:24,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:10:24,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:10:24,114 INFO L87 Difference]: Start difference. First operand 189 states and 283 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:26,132 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 [] [2022-02-15 03:10:26,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:10:26,568 INFO L93 Difference]: Finished difference Result 355 states and 539 transitions. [2022-02-15 03:10:26,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:10:26,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 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 70 [2022-02-15 03:10:26,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:10:26,570 INFO L225 Difference]: With dead ends: 355 [2022-02-15 03:10:26,570 INFO L226 Difference]: Without dead ends: 192 [2022-02-15 03:10:26,571 INFO L932 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 [2022-02-15 03:10:26,572 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 11 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:10:26,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 484 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 331 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 03:10:26,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-02-15 03:10:26,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 189. [2022-02-15 03:10:26,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 184 states have (on average 1.5108695652173914) internal successors, (278), 184 states have internal predecessors, (278), 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) [2022-02-15 03:10:26,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 282 transitions. [2022-02-15 03:10:26,587 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 282 transitions. Word has length 70 [2022-02-15 03:10:26,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:10:26,587 INFO L470 AbstractCegarLoop]: Abstraction has 189 states and 282 transitions. [2022-02-15 03:10:26,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:26,587 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 282 transitions. [2022-02-15 03:10:26,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-02-15 03:10:26,589 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:10:26,589 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:10:26,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-15 03:10:26,590 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:10:26,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:10:26,590 INFO L85 PathProgramCache]: Analyzing trace with hash -299545146, now seen corresponding path program 1 times [2022-02-15 03:10:26,591 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:10:26,591 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2032366161] [2022-02-15 03:10:26,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:10:26,607 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:10:26,607 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:10:26,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:10:26,612 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:10:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:26,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:10:26,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:26,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:10:26,760 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:10:26,760 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2032366161] [2022-02-15 03:10:26,761 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2032366161] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:10:26,761 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:10:26,761 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:10:26,761 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298437126] [2022-02-15 03:10:26,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:10:26,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:10:26,761 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:10:26,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:10:26,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:10:26,762 INFO L87 Difference]: Start difference. First operand 189 states and 282 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:28,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:10:30,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:10:32,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:10:34,403 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 [] [2022-02-15 03:10:34,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:10:34,876 INFO L93 Difference]: Finished difference Result 371 states and 559 transitions. [2022-02-15 03:10:34,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:10:34,877 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-02-15 03:10:34,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:10:34,878 INFO L225 Difference]: With dead ends: 371 [2022-02-15 03:10:34,878 INFO L226 Difference]: Without dead ends: 208 [2022-02-15 03:10:34,879 INFO L932 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 [2022-02-15 03:10:34,880 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 37 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:10:34,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 486 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 383 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-02-15 03:10:34,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-02-15 03:10:34,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 189. [2022-02-15 03:10:34,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 184 states have (on average 1.5054347826086956) internal successors, (277), 184 states have internal predecessors, (277), 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) [2022-02-15 03:10:34,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 281 transitions. [2022-02-15 03:10:34,889 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 281 transitions. Word has length 82 [2022-02-15 03:10:34,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:10:34,889 INFO L470 AbstractCegarLoop]: Abstraction has 189 states and 281 transitions. [2022-02-15 03:10:34,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:34,889 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 281 transitions. [2022-02-15 03:10:34,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-02-15 03:10:34,890 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:10:34,890 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:10:34,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-15 03:10:34,891 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:10:34,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:10:34,891 INFO L85 PathProgramCache]: Analyzing trace with hash -301741538, now seen corresponding path program 1 times [2022-02-15 03:10:34,891 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:10:34,892 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [836142928] [2022-02-15 03:10:34,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:10:34,901 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:10:34,901 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:10:34,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:10:34,906 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:10:34,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:35,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:10:35,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:35,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:10:35,053 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:10:35,053 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [836142928] [2022-02-15 03:10:35,053 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [836142928] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:10:35,053 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:10:35,053 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:10:35,053 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259859608] [2022-02-15 03:10:35,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:10:35,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:10:35,054 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:10:35,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:10:35,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:10:35,054 INFO L87 Difference]: Start difference. First operand 189 states and 281 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:37,071 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 [] [2022-02-15 03:10:37,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:10:37,506 INFO L93 Difference]: Finished difference Result 370 states and 556 transitions. [2022-02-15 03:10:37,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:10:37,507 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 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 83 [2022-02-15 03:10:37,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:10:37,530 INFO L225 Difference]: With dead ends: 370 [2022-02-15 03:10:37,531 INFO L226 Difference]: Without dead ends: 207 [2022-02-15 03:10:37,533 INFO L932 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 [2022-02-15 03:10:37,533 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 34 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:10:37,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 488 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 380 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 03:10:37,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-02-15 03:10:37,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 189. [2022-02-15 03:10:37,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 184 states have (on average 1.5) internal successors, (276), 184 states have internal predecessors, (276), 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) [2022-02-15 03:10:37,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 280 transitions. [2022-02-15 03:10:37,542 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 280 transitions. Word has length 83 [2022-02-15 03:10:37,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:10:37,543 INFO L470 AbstractCegarLoop]: Abstraction has 189 states and 280 transitions. [2022-02-15 03:10:37,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:37,543 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 280 transitions. [2022-02-15 03:10:37,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-02-15 03:10:37,544 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:10:37,544 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:10:37,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-15 03:10:37,544 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:10:37,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:10:37,545 INFO L85 PathProgramCache]: Analyzing trace with hash -276632906, now seen corresponding path program 1 times [2022-02-15 03:10:37,545 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:10:37,545 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1469730055] [2022-02-15 03:10:37,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:10:37,563 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:10:37,563 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:10:37,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:10:37,570 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:10:37,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:37,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:10:37,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:37,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:10:37,713 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:10:37,713 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1469730055] [2022-02-15 03:10:37,713 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1469730055] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:10:37,713 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:10:37,713 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:10:37,713 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759798747] [2022-02-15 03:10:37,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:10:37,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:10:37,714 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:10:37,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:10:37,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:10:37,715 INFO L87 Difference]: Start difference. First operand 189 states and 280 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:39,732 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 [] [2022-02-15 03:10:40,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:10:40,272 INFO L93 Difference]: Finished difference Result 381 states and 572 transitions. [2022-02-15 03:10:40,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:10:40,272 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-02-15 03:10:40,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:10:40,274 INFO L225 Difference]: With dead ends: 381 [2022-02-15 03:10:40,274 INFO L226 Difference]: Without dead ends: 218 [2022-02-15 03:10:40,275 INFO L932 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 [2022-02-15 03:10:40,276 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 21 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:10:40,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 551 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 387 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 03:10:40,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-02-15 03:10:40,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 205. [2022-02-15 03:10:40,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 200 states have (on average 1.505) internal successors, (301), 200 states have internal predecessors, (301), 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) [2022-02-15 03:10:40,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 305 transitions. [2022-02-15 03:10:40,287 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 305 transitions. Word has length 84 [2022-02-15 03:10:40,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:10:40,287 INFO L470 AbstractCegarLoop]: Abstraction has 205 states and 305 transitions. [2022-02-15 03:10:40,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:40,287 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 305 transitions. [2022-02-15 03:10:40,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-02-15 03:10:40,288 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:10:40,288 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:10:40,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-15 03:10:40,289 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:10:40,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:10:40,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1096918579, now seen corresponding path program 1 times [2022-02-15 03:10:40,290 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:10:40,290 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [889612004] [2022-02-15 03:10:40,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:10:40,306 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:10:40,306 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:10:40,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:10:40,313 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:10:40,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:40,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:10:40,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:40,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:10:40,449 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:10:40,449 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [889612004] [2022-02-15 03:10:40,449 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [889612004] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:10:40,449 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:10:40,449 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 03:10:40,449 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472543940] [2022-02-15 03:10:40,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:10:40,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 03:10:40,450 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:10:40,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 03:10:40,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:10:40,451 INFO L87 Difference]: Start difference. First operand 205 states and 305 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:42,462 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 [] [2022-02-15 03:10:42,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:10:42,848 INFO L93 Difference]: Finished difference Result 393 states and 592 transitions. [2022-02-15 03:10:42,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 03:10:42,849 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-02-15 03:10:42,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:10:42,850 INFO L225 Difference]: With dead ends: 393 [2022-02-15 03:10:42,850 INFO L226 Difference]: Without dead ends: 214 [2022-02-15 03:10:42,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-15 03:10:42,852 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 2 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:10:42,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 605 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 424 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 03:10:42,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-02-15 03:10:42,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2022-02-15 03:10:42,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.492822966507177) internal successors, (312), 209 states have internal predecessors, (312), 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) [2022-02-15 03:10:42,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 316 transitions. [2022-02-15 03:10:42,884 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 316 transitions. Word has length 85 [2022-02-15 03:10:42,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:10:42,885 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 316 transitions. [2022-02-15 03:10:42,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:42,885 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 316 transitions. [2022-02-15 03:10:42,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-02-15 03:10:42,886 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:10:42,886 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:10:42,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-15 03:10:42,887 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:10:42,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:10:42,887 INFO L85 PathProgramCache]: Analyzing trace with hash -662610092, now seen corresponding path program 1 times [2022-02-15 03:10:42,888 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:10:42,888 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2083217752] [2022-02-15 03:10:42,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:10:42,903 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:10:42,904 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:10:42,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:10:42,910 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:10:42,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:43,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:10:43,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:43,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:10:43,020 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:10:43,020 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2083217752] [2022-02-15 03:10:43,021 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2083217752] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:10:43,021 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:10:43,021 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:10:43,021 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807141772] [2022-02-15 03:10:43,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:10:43,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:10:43,021 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:10:43,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:10:43,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:10:43,022 INFO L87 Difference]: Start difference. First operand 214 states and 316 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:46,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:10:48,038 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:10:50,068 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:10:50,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:10:50,526 INFO L93 Difference]: Finished difference Result 429 states and 637 transitions. [2022-02-15 03:10:50,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:10:50,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 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 86 [2022-02-15 03:10:50,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:10:50,528 INFO L225 Difference]: With dead ends: 429 [2022-02-15 03:10:50,528 INFO L226 Difference]: Without dead ends: 241 [2022-02-15 03:10:50,529 INFO L932 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 [2022-02-15 03:10:50,529 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 38 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:10:50,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 488 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 381 Invalid, 3 Unknown, 0 Unchecked, 7.5s Time] [2022-02-15 03:10:50,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-02-15 03:10:50,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 214. [2022-02-15 03:10:50,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.4880382775119618) internal successors, (311), 209 states have internal predecessors, (311), 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) [2022-02-15 03:10:50,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 315 transitions. [2022-02-15 03:10:50,540 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 315 transitions. Word has length 86 [2022-02-15 03:10:50,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:10:50,541 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 315 transitions. [2022-02-15 03:10:50,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:50,541 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 315 transitions. [2022-02-15 03:10:50,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-02-15 03:10:50,542 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:10:50,542 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:10:50,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-15 03:10:50,542 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:10:50,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:10:50,542 INFO L85 PathProgramCache]: Analyzing trace with hash -831422676, now seen corresponding path program 1 times [2022-02-15 03:10:50,543 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:10:50,543 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1979556614] [2022-02-15 03:10:50,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:10:50,559 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:10:50,560 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:10:50,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:10:50,567 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:10:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:50,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:10:50,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:50,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:10:50,687 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:10:50,687 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1979556614] [2022-02-15 03:10:50,687 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1979556614] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:10:50,687 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:10:50,687 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:10:50,687 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461500425] [2022-02-15 03:10:50,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:10:50,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:10:50,688 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:10:50,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:10:50,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:10:50,688 INFO L87 Difference]: Start difference. First operand 214 states and 315 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 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) [2022-02-15 03:10:52,700 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 [] [2022-02-15 03:10:53,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:10:53,149 INFO L93 Difference]: Finished difference Result 429 states and 635 transitions. [2022-02-15 03:10:53,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:10:53,149 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 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 87 [2022-02-15 03:10:53,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:10:53,151 INFO L225 Difference]: With dead ends: 429 [2022-02-15 03:10:53,151 INFO L226 Difference]: Without dead ends: 241 [2022-02-15 03:10:53,151 INFO L932 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 [2022-02-15 03:10:53,152 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 36 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:10:53,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 488 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 380 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 03:10:53,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-02-15 03:10:53,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 214. [2022-02-15 03:10:53,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.4832535885167464) internal successors, (310), 209 states have internal predecessors, (310), 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) [2022-02-15 03:10:53,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 314 transitions. [2022-02-15 03:10:53,162 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 314 transitions. Word has length 87 [2022-02-15 03:10:53,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:10:53,162 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 314 transitions. [2022-02-15 03:10:53,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 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) [2022-02-15 03:10:53,162 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 314 transitions. [2022-02-15 03:10:53,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-02-15 03:10:53,163 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:10:53,163 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:10:53,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-15 03:10:53,163 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:10:53,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:10:53,164 INFO L85 PathProgramCache]: Analyzing trace with hash -398659815, now seen corresponding path program 1 times [2022-02-15 03:10:53,164 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:10:53,164 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1303544642] [2022-02-15 03:10:53,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:10:53,194 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:10:53,194 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:10:53,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:10:53,200 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:10:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:53,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:10:53,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:53,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:10:53,327 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:10:53,327 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1303544642] [2022-02-15 03:10:53,328 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1303544642] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:10:53,328 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:10:53,328 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:10:53,328 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887352022] [2022-02-15 03:10:53,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:10:53,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:10:53,328 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:10:53,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:10:53,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:10:53,329 INFO L87 Difference]: Start difference. First operand 214 states and 314 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:55,340 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 [] [2022-02-15 03:10:55,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:10:55,836 INFO L93 Difference]: Finished difference Result 510 states and 759 transitions. [2022-02-15 03:10:55,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:10:55,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 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 88 [2022-02-15 03:10:55,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:10:55,837 INFO L225 Difference]: With dead ends: 510 [2022-02-15 03:10:55,837 INFO L226 Difference]: Without dead ends: 322 [2022-02-15 03:10:55,838 INFO L932 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 [2022-02-15 03:10:55,838 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 140 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:10:55,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 321 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 03:10:55,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-02-15 03:10:55,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 214. [2022-02-15 03:10:55,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.4688995215311005) internal successors, (307), 209 states have internal predecessors, (307), 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) [2022-02-15 03:10:55,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 311 transitions. [2022-02-15 03:10:55,852 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 311 transitions. Word has length 88 [2022-02-15 03:10:55,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:10:55,852 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 311 transitions. [2022-02-15 03:10:55,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:55,852 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 311 transitions. [2022-02-15 03:10:55,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-15 03:10:55,853 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:10:55,853 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:10:55,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-15 03:10:55,853 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:10:55,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:10:55,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1973605427, now seen corresponding path program 1 times [2022-02-15 03:10:55,854 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:10:55,854 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1029901873] [2022-02-15 03:10:55,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:10:55,866 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:10:55,866 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:10:55,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:10:55,872 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:10:55,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:55,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:10:55,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:55,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:10:55,982 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:10:55,982 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1029901873] [2022-02-15 03:10:55,982 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1029901873] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:10:55,982 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:10:55,982 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:10:55,982 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55485488] [2022-02-15 03:10:55,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:10:55,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:10:55,982 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:10:55,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:10:55,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:10:55,983 INFO L87 Difference]: Start difference. First operand 214 states and 311 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) [2022-02-15 03:10:57,993 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 [] [2022-02-15 03:10:58,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:10:58,573 INFO L93 Difference]: Finished difference Result 527 states and 779 transitions. [2022-02-15 03:10:58,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:10:58,573 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 91 [2022-02-15 03:10:58,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:10:58,575 INFO L225 Difference]: With dead ends: 527 [2022-02-15 03:10:58,575 INFO L226 Difference]: Without dead ends: 339 [2022-02-15 03:10:58,576 INFO L932 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 [2022-02-15 03:10:58,576 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 110 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:10:58,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 322 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 03:10:58,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-02-15 03:10:58,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 257. [2022-02-15 03:10:58,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 252 states have (on average 1.5238095238095237) internal successors, (384), 252 states have internal predecessors, (384), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:10:58,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 388 transitions. [2022-02-15 03:10:58,590 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 388 transitions. Word has length 91 [2022-02-15 03:10:58,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:10:58,590 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 388 transitions. [2022-02-15 03:10:58,590 INFO L471 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) [2022-02-15 03:10:58,590 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 388 transitions. [2022-02-15 03:10:58,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 03:10:58,591 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:10:58,591 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:10:58,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-15 03:10:58,592 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:10:58,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:10:58,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1059321323, now seen corresponding path program 1 times [2022-02-15 03:10:58,592 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:10:58,592 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [935026375] [2022-02-15 03:10:58,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:10:58,606 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:10:58,607 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:10:58,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:10:58,613 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:10:58,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:58,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:10:58,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:10:58,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:10:58,743 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:10:58,743 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [935026375] [2022-02-15 03:10:58,743 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [935026375] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:10:58,743 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:10:58,743 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:10:58,743 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807063052] [2022-02-15 03:10:58,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:10:58,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:10:58,744 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:10:58,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:10:58,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:10:58,744 INFO L87 Difference]: Start difference. First operand 257 states and 388 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:11:00,772 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 [] [2022-02-15 03:11:01,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:11:01,321 INFO L93 Difference]: Finished difference Result 596 states and 907 transitions. [2022-02-15 03:11:01,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:11:01,322 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 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 92 [2022-02-15 03:11:01,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:11:01,324 INFO L225 Difference]: With dead ends: 596 [2022-02-15 03:11:01,324 INFO L226 Difference]: Without dead ends: 363 [2022-02-15 03:11:01,325 INFO L932 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 [2022-02-15 03:11:01,325 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 111 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:11:01,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 337 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 03:11:01,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2022-02-15 03:11:01,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 282. [2022-02-15 03:11:01,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 277 states have (on average 1.5631768953068592) internal successors, (433), 277 states have internal predecessors, (433), 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) [2022-02-15 03:11:01,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 437 transitions. [2022-02-15 03:11:01,340 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 437 transitions. Word has length 92 [2022-02-15 03:11:01,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:11:01,340 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 437 transitions. [2022-02-15 03:11:01,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:11:01,341 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 437 transitions. [2022-02-15 03:11:01,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-02-15 03:11:01,342 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:11:01,342 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:11:01,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-15 03:11:01,342 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:11:01,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:11:01,342 INFO L85 PathProgramCache]: Analyzing trace with hash 502133768, now seen corresponding path program 1 times [2022-02-15 03:11:01,343 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:11:01,343 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1076911125] [2022-02-15 03:11:01,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:11:01,365 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:11:01,365 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:11:01,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:11:01,372 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:11:01,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:11:01,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:11:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:11:01,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:11:01,528 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:11:01,528 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1076911125] [2022-02-15 03:11:01,528 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1076911125] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:11:01,528 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:11:01,528 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:11:01,528 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429732796] [2022-02-15 03:11:01,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:11:01,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:11:01,531 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:11:01,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:11:01,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:11:01,531 INFO L87 Difference]: Start difference. First operand 282 states and 437 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:11:03,544 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 [] [2022-02-15 03:11:04,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:11:04,088 INFO L93 Difference]: Finished difference Result 641 states and 998 transitions. [2022-02-15 03:11:04,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:11:04,088 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 121 [2022-02-15 03:11:04,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:11:04,090 INFO L225 Difference]: With dead ends: 641 [2022-02-15 03:11:04,090 INFO L226 Difference]: Without dead ends: 385 [2022-02-15 03:11:04,091 INFO L932 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 [2022-02-15 03:11:04,092 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 84 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:11:04,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 486 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 525 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 03:11:04,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2022-02-15 03:11:04,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 316. [2022-02-15 03:11:04,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 311 states have (on average 1.5755627009646302) internal successors, (490), 311 states have internal predecessors, (490), 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) [2022-02-15 03:11:04,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 494 transitions. [2022-02-15 03:11:04,109 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 494 transitions. Word has length 121 [2022-02-15 03:11:04,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:11:04,109 INFO L470 AbstractCegarLoop]: Abstraction has 316 states and 494 transitions. [2022-02-15 03:11:04,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:11:04,110 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 494 transitions. [2022-02-15 03:11:04,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-02-15 03:11:04,111 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:11:04,111 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:11:04,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-15 03:11:04,111 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:11:04,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:11:04,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1408908790, now seen corresponding path program 1 times [2022-02-15 03:11:04,112 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:11:04,112 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1645416617] [2022-02-15 03:11:04,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:11:04,137 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:11:04,137 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:11:04,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:11:04,145 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:11:04,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:11:04,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:11:04,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:11:04,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:11:04,271 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:11:04,271 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1645416617] [2022-02-15 03:11:04,271 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1645416617] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:11:04,271 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:11:04,271 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:11:04,271 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196897266] [2022-02-15 03:11:04,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:11:04,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:11:04,272 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:11:04,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:11:04,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:11:04,272 INFO L87 Difference]: Start difference. First operand 316 states and 494 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:11:06,291 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 [] [2022-02-15 03:11:06,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:11:06,869 INFO L93 Difference]: Finished difference Result 725 states and 1136 transitions. [2022-02-15 03:11:06,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:11:06,869 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 121 [2022-02-15 03:11:06,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:11:06,870 INFO L225 Difference]: With dead ends: 725 [2022-02-15 03:11:06,870 INFO L226 Difference]: Without dead ends: 435 [2022-02-15 03:11:06,871 INFO L932 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 [2022-02-15 03:11:06,871 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 118 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:11:06,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 353 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 03:11:06,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-02-15 03:11:06,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 314. [2022-02-15 03:11:06,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 309 states have (on average 1.5760517799352751) internal successors, (487), 309 states have internal predecessors, (487), 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) [2022-02-15 03:11:06,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 491 transitions. [2022-02-15 03:11:06,887 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 491 transitions. Word has length 121 [2022-02-15 03:11:06,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:11:06,887 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 491 transitions. [2022-02-15 03:11:06,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:11:06,887 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 491 transitions. [2022-02-15 03:11:06,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-02-15 03:11:06,888 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:11:06,888 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:11:06,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-15 03:11:06,889 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:11:06,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:11:06,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1513581320, now seen corresponding path program 1 times [2022-02-15 03:11:06,889 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:11:06,889 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2118978746] [2022-02-15 03:11:06,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:11:06,921 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:11:06,921 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:11:06,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:11:06,930 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:11:06,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:11:07,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:11:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:11:07,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:11:07,060 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:11:07,060 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2118978746] [2022-02-15 03:11:07,060 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2118978746] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:11:07,060 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:11:07,060 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:11:07,060 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674360648] [2022-02-15 03:11:07,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:11:07,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:11:07,061 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:11:07,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:11:07,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:11:07,061 INFO L87 Difference]: Start difference. First operand 314 states and 491 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:11:09,072 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 [] [2022-02-15 03:11:09,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:11:09,606 INFO L93 Difference]: Finished difference Result 673 states and 1048 transitions. [2022-02-15 03:11:09,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:11:09,607 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 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 127 [2022-02-15 03:11:09,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:11:09,609 INFO L225 Difference]: With dead ends: 673 [2022-02-15 03:11:09,610 INFO L226 Difference]: Without dead ends: 385 [2022-02-15 03:11:09,610 INFO L932 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 [2022-02-15 03:11:09,612 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 141 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:11:09,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 325 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 03:11:09,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2022-02-15 03:11:09,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 314. [2022-02-15 03:11:09,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 309 states have (on average 1.5598705501618122) internal successors, (482), 309 states have internal predecessors, (482), 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) [2022-02-15 03:11:09,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 486 transitions. [2022-02-15 03:11:09,632 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 486 transitions. Word has length 127 [2022-02-15 03:11:09,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:11:09,632 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 486 transitions. [2022-02-15 03:11:09,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:11:09,632 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 486 transitions. [2022-02-15 03:11:09,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-02-15 03:11:09,633 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:11:09,634 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:11:09,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-15 03:11:09,634 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:11:09,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:11:09,634 INFO L85 PathProgramCache]: Analyzing trace with hash 773095969, now seen corresponding path program 1 times [2022-02-15 03:11:09,635 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:11:09,635 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [866065480] [2022-02-15 03:11:09,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:11:09,675 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:11:09,676 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:11:09,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:11:09,684 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:11:09,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:11:09,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:11:09,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:11:09,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:11:09,884 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:11:09,884 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [866065480] [2022-02-15 03:11:09,884 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [866065480] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:11:09,884 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:11:09,884 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 03:11:09,884 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651295366] [2022-02-15 03:11:09,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:11:09,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 03:11:09,885 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:11:09,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 03:11:09,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 03:11:09,890 INFO L87 Difference]: Start difference. First operand 314 states and 486 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:11:11,907 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 [] [2022-02-15 03:11:12,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:11:12,350 INFO L93 Difference]: Finished difference Result 890 states and 1398 transitions. [2022-02-15 03:11:12,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 03:11:12,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-02-15 03:11:12,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:11:12,352 INFO L225 Difference]: With dead ends: 890 [2022-02-15 03:11:12,353 INFO L226 Difference]: Without dead ends: 602 [2022-02-15 03:11:12,354 INFO L932 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 [2022-02-15 03:11:12,354 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 143 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:11:12,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 565 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 395 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 03:11:12,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2022-02-15 03:11:12,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 600. [2022-02-15 03:11:12,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 595 states have (on average 1.5663865546218487) internal successors, (932), 595 states have internal predecessors, (932), 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) [2022-02-15 03:11:12,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 936 transitions. [2022-02-15 03:11:12,388 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 936 transitions. Word has length 132 [2022-02-15 03:11:12,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:11:12,388 INFO L470 AbstractCegarLoop]: Abstraction has 600 states and 936 transitions. [2022-02-15 03:11:12,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:11:12,388 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 936 transitions. [2022-02-15 03:11:12,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-02-15 03:11:12,390 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:11:12,390 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:11:12,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-15 03:11:12,390 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:11:12,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:11:12,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1276291873, now seen corresponding path program 1 times [2022-02-15 03:11:12,391 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:11:12,391 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1227056910] [2022-02-15 03:11:12,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:11:12,424 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:11:12,424 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:11:12,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:11:12,431 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:11:12,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:11:12,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:11:12,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:11:12,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:11:12,582 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:11:12,583 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1227056910] [2022-02-15 03:11:12,583 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1227056910] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:11:12,583 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:11:12,583 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 03:11:12,583 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317629147] [2022-02-15 03:11:12,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:11:12,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 03:11:12,583 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:11:12,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 03:11:12,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 03:11:12,584 INFO L87 Difference]: Start difference. First operand 600 states and 936 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:11:14,601 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 [] [2022-02-15 03:11:14,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:11:14,963 INFO L93 Difference]: Finished difference Result 1415 states and 2220 transitions. [2022-02-15 03:11:14,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 03:11:14,964 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 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 132 [2022-02-15 03:11:14,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:11:14,967 INFO L225 Difference]: With dead ends: 1415 [2022-02-15 03:11:14,967 INFO L226 Difference]: Without dead ends: 841 [2022-02-15 03:11:14,969 INFO L932 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 [2022-02-15 03:11:14,970 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 138 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 03:11:14,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 438 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 267 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 03:11:14,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2022-02-15 03:11:15,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 841. [2022-02-15 03:11:15,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 836 states have (on average 1.5598086124401913) internal successors, (1304), 836 states have internal predecessors, (1304), 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) [2022-02-15 03:11:15,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1308 transitions. [2022-02-15 03:11:15,016 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1308 transitions. Word has length 132 [2022-02-15 03:11:15,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:11:15,017 INFO L470 AbstractCegarLoop]: Abstraction has 841 states and 1308 transitions. [2022-02-15 03:11:15,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:11:15,017 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1308 transitions. [2022-02-15 03:11:15,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-02-15 03:11:15,019 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:11:15,019 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:11:15,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-15 03:11:15,019 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:11:15,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:11:15,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1060100637, now seen corresponding path program 1 times [2022-02-15 03:11:15,020 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:11:15,020 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [729616646] [2022-02-15 03:11:15,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:11:15,061 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:11:15,061 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:11:15,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:11:15,070 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:11:15,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:11:15,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:11:15,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:11:15,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:11:15,174 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:11:15,174 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [729616646] [2022-02-15 03:11:15,174 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [729616646] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:11:15,174 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:11:15,174 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 03:11:15,174 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364564513] [2022-02-15 03:11:15,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:11:15,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 03:11:15,175 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:11:15,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 03:11:15,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 03:11:15,175 INFO L87 Difference]: Start difference. First operand 841 states and 1308 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 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) [2022-02-15 03:11:17,185 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 03:11:17,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:11:17,483 INFO L93 Difference]: Finished difference Result 1683 states and 2623 transitions. [2022-02-15 03:11:17,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 03:11:17,484 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 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 132 [2022-02-15 03:11:17,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:11:17,488 INFO L225 Difference]: With dead ends: 1683 [2022-02-15 03:11:17,488 INFO L226 Difference]: Without dead ends: 868 [2022-02-15 03:11:17,490 INFO L932 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 [2022-02-15 03:11:17,491 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 15 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 03:11:17,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 411 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 232 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 03:11:17,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2022-02-15 03:11:17,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 868. [2022-02-15 03:11:17,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 863 states have (on average 1.5515643105446117) internal successors, (1339), 863 states have internal predecessors, (1339), 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) [2022-02-15 03:11:17,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1343 transitions. [2022-02-15 03:11:17,548 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1343 transitions. Word has length 132 [2022-02-15 03:11:17,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:11:17,548 INFO L470 AbstractCegarLoop]: Abstraction has 868 states and 1343 transitions. [2022-02-15 03:11:17,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 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) [2022-02-15 03:11:17,549 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1343 transitions. [2022-02-15 03:11:17,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-02-15 03:11:17,552 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:11:17,552 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:11:17,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-15 03:11:17,552 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:11:17,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:11:17,553 INFO L85 PathProgramCache]: Analyzing trace with hash 436819035, now seen corresponding path program 1 times [2022-02-15 03:11:17,553 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:11:17,553 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1193112687] [2022-02-15 03:11:17,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:11:17,586 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:11:17,586 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:11:17,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:11:17,596 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:11:17,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:11:17,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:11:17,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:11:17,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:11:17,700 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:11:17,700 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1193112687] [2022-02-15 03:11:17,701 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1193112687] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:11:17,701 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:11:17,701 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 03:11:17,701 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614916321] [2022-02-15 03:11:17,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:11:17,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 03:11:17,701 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:11:17,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 03:11:17,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 03:11:17,702 INFO L87 Difference]: Start difference. First operand 868 states and 1343 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) [2022-02-15 03:11:19,712 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 [] [2022-02-15 03:11:19,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:11:19,979 INFO L93 Difference]: Finished difference Result 1426 states and 2204 transitions. [2022-02-15 03:11:19,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 03:11:19,980 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 132 [2022-02-15 03:11:19,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:11:19,982 INFO L225 Difference]: With dead ends: 1426 [2022-02-15 03:11:19,982 INFO L226 Difference]: Without dead ends: 584 [2022-02-15 03:11:19,984 INFO L932 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 [2022-02-15 03:11:19,985 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 4 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-15 03:11:19,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 388 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 214 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-02-15 03:11:19,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2022-02-15 03:11:20,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2022-02-15 03:11:20,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 579 states have (on average 1.5302245250431779) internal successors, (886), 579 states have internal predecessors, (886), 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) [2022-02-15 03:11:20,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 890 transitions. [2022-02-15 03:11:20,021 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 890 transitions. Word has length 132 [2022-02-15 03:11:20,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:11:20,021 INFO L470 AbstractCegarLoop]: Abstraction has 584 states and 890 transitions. [2022-02-15 03:11:20,021 INFO L471 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) [2022-02-15 03:11:20,021 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 890 transitions. [2022-02-15 03:11:20,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-02-15 03:11:20,022 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:11:20,023 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:11:20,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-15 03:11:20,023 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:11:20,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:11:20,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1803828749, now seen corresponding path program 1 times [2022-02-15 03:11:20,023 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:11:20,024 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1860246826] [2022-02-15 03:11:20,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:11:20,059 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:11:20,060 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:11:20,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:11:20,068 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:11:20,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:11:20,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:11:20,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:11:20,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:11:20,582 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:11:20,582 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1860246826] [2022-02-15 03:11:20,582 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1860246826] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:11:20,582 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:11:20,583 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-15 03:11:20,583 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471974487] [2022-02-15 03:11:20,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:11:20,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-15 03:11:20,585 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:11:20,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-15 03:11:20,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-15 03:11:20,585 INFO L87 Difference]: Start difference. First operand 584 states and 890 transitions. Second operand has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 2 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) [2022-02-15 03:11:22,598 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 [] [2022-02-15 03:11:23,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:11:23,176 INFO L93 Difference]: Finished difference Result 1161 states and 1772 transitions. [2022-02-15 03:11:23,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 03:11:23,177 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 2 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) Word has length 133 [2022-02-15 03:11:23,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:11:23,180 INFO L225 Difference]: With dead ends: 1161 [2022-02-15 03:11:23,181 INFO L226 Difference]: Without dead ends: 584 [2022-02-15 03:11:23,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-02-15 03:11:23,186 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 7 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:11:23,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 797 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 429 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 03:11:23,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2022-02-15 03:11:23,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2022-02-15 03:11:23,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 579 states have (on average 1.528497409326425) internal successors, (885), 579 states have internal predecessors, (885), 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) [2022-02-15 03:11:23,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 889 transitions. [2022-02-15 03:11:23,225 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 889 transitions. Word has length 133 [2022-02-15 03:11:23,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:11:23,226 INFO L470 AbstractCegarLoop]: Abstraction has 584 states and 889 transitions. [2022-02-15 03:11:23,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 5 states have internal predecessors, (68), 2 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) [2022-02-15 03:11:23,226 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 889 transitions. [2022-02-15 03:11:23,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-02-15 03:11:23,228 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:11:23,229 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:11:23,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-15 03:11:23,230 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:11:23,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:11:23,230 INFO L85 PathProgramCache]: Analyzing trace with hash 2056632949, now seen corresponding path program 1 times [2022-02-15 03:11:23,230 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:11:23,230 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1079520196] [2022-02-15 03:11:23,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:11:23,264 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: -1 HavocedVariables, -1 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 03:11:23,265 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because SIMULTANEOUS_UPDATE_FAILED [2022-02-15 03:11:23,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:11:23,276 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:11:23,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-15 03:11:23,763 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-15 03:11:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-15 03:11:24,133 INFO L138 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-02-15 03:11:24,133 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-15 03:11:24,139 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-15 03:11:24,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-15 03:11:24,144 INFO L732 BasicCegarLoop]: Path program 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] [2022-02-15 03:11:24,148 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-15 03:11:24,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 03:11:24 BoogieIcfgContainer [2022-02-15 03:11:24,188 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-15 03:11:24,189 INFO L158 Benchmark]: Toolchain (without parser) took 90810.53ms. Allocated memory was 178.3MB in the beginning and 280.0MB in the end (delta: 101.7MB). Free memory was 151.9MB in the beginning and 204.9MB in the end (delta: -53.1MB). Peak memory consumption was 176.4MB. Max. memory is 8.0GB. [2022-02-15 03:11:24,190 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 178.3MB. Free memory was 145.1MB in the beginning and 145.1MB in the end (delta: 53.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-15 03:11:24,192 INFO L158 Benchmark]: CACSL2BoogieTranslator took 721.47ms. Allocated memory was 178.3MB in the beginning and 232.8MB in the end (delta: 54.5MB). Free memory was 151.7MB in the beginning and 189.5MB in the end (delta: -37.8MB). Peak memory consumption was 18.0MB. Max. memory is 8.0GB. [2022-02-15 03:11:24,192 INFO L158 Benchmark]: Boogie Preprocessor took 115.66ms. Allocated memory is still 232.8MB. Free memory was 189.5MB in the beginning and 182.0MB in the end (delta: 7.5MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-02-15 03:11:24,193 INFO L158 Benchmark]: RCFGBuilder took 3273.66ms. Allocated memory is still 232.8MB. Free memory was 182.0MB in the beginning and 171.2MB in the end (delta: 10.8MB). Peak memory consumption was 49.6MB. Max. memory is 8.0GB. [2022-02-15 03:11:24,195 INFO L158 Benchmark]: TraceAbstraction took 86694.83ms. Allocated memory was 232.8MB in the beginning and 280.0MB in the end (delta: 47.2MB). Free memory was 170.6MB in the beginning and 204.9MB in the end (delta: -34.3MB). Peak memory consumption was 141.3MB. Max. memory is 8.0GB. [2022-02-15 03:11:24,196 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 178.3MB. Free memory was 145.1MB in the beginning and 145.1MB in the end (delta: 53.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 721.47ms. Allocated memory was 178.3MB in the beginning and 232.8MB in the end (delta: 54.5MB). Free memory was 151.7MB in the beginning and 189.5MB in the end (delta: -37.8MB). Peak memory consumption was 18.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 115.66ms. Allocated memory is still 232.8MB. Free memory was 189.5MB in the beginning and 182.0MB in the end (delta: 7.5MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 3273.66ms. Allocated memory is still 232.8MB. Free memory was 182.0MB in the beginning and 171.2MB in the end (delta: 10.8MB). Peak memory consumption was 49.6MB. Max. memory is 8.0GB. * TraceAbstraction took 86694.83ms. Allocated memory was 232.8MB in the beginning and 280.0MB in the end (delta: 47.2MB). Free memory was 170.6MB in the beginning and 204.9MB in the end (delta: -34.3MB). Peak memory consumption was 141.3MB. 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: 1737]: 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 1151. Possible FailurePath: [L1054] static int init = 1; [L1055] static SSL_METHOD SSLv3_server_data ; [L1077] SSL *s ; [L1078] int tmp ; [L1082] s = malloc(sizeof(SSL)) [L1083] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1084] s->ctx = malloc(sizeof(SSL_CTX)) [L1085] s->session = malloc(sizeof(SSL_SESSION)) [L1086] s->state = 8464 [L1088] s->info_callback = (void (*) ()) __VERIFIER_nondet_ulong() [L1089] s->options = __VERIFIER_nondet_ulong() [L1090] s->verify_mode = __VERIFIER_nondet_int() [L1091] EXPR s->session [L1091] (s->session)->peer = (struct x509_st*) __VERIFIER_nondet_ulong() [L1092] EXPR s->s3 [L1092] (s->s3)->tmp.cert_request = __VERIFIER_nondet_int() [L1093] EXPR s->s3 [L1093] (s->s3)->tmp.new_cipher = malloc(sizeof(struct ssl_cipher_st)) [L1094] EXPR s->s3 [L1094] EXPR (s->s3)->tmp.new_cipher [L1094] ((s->s3)->tmp.new_cipher)->algorithms = __VERIFIER_nondet_ulong() [L1095] EXPR s->s3 [L1095] EXPR (s->s3)->tmp.new_cipher [L1095] ((s->s3)->tmp.new_cipher)->algo_strength = __VERIFIER_nondet_ulong() [L1096] COND FALSE !(__VERIFIER_nondet_int()) [L1102] s->cert = malloc(sizeof(struct cert_st)) [L1103] EXPR s->cert [L1103] (s->cert)->pkeys[0].privatekey = (struct evp_pkey_st*) __VERIFIER_nondet_ulong() [L1106] CALL ssl3_accept(s) [L1112] BUF_MEM *buf = (BUF_MEM *)__VERIFIER_nondet_ulong(); [L1113] unsigned long l ; [L1114] unsigned long Time ; [L1115] unsigned long tmp = __VERIFIER_nondet_long() ; [L1116] void (*cb)() ; [L1117] long num1 ; [L1118] int ret ; [L1119] int new_state ; [L1120] int state ; [L1121] int skip ; [L1122] int got_new_session ; [L1123] int tmp___1 = __VERIFIER_nondet_int() ; [L1124] int tmp___2 = __VERIFIER_nondet_int() ; [L1125] int tmp___3 ; [L1126] int tmp___4 ; [L1127] int tmp___5 ; [L1128] int tmp___6 ; [L1129] int tmp___7 ; [L1130] long tmp___8 = __VERIFIER_nondet_long() ; [L1131] int tmp___9 ; [L1132] int tmp___10 ; [L1133] int blastFlag ; [L1137] blastFlag = 0 [L1138] s->hit=__VERIFIER_nondet_int () [L1139] s->state = 8464 [L1140] Time = tmp [L1141] cb = (void (*)())((void *)0) [L1142] ret = -1 [L1143] skip = 0 [L1144] got_new_session = 0 [L1145] EXPR s->info_callback [L1145] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1146] EXPR s->info_callback [L1146] cb = s->info_callback [L1150] EXPR s->in_handshake [L1150] s->in_handshake += 1 [L1151] COND FALSE !(tmp___1 & 12288) [L1160] EXPR s->cert [L1160] COND FALSE !((unsigned long )s->cert == (unsigned long )((void *)0)) [L1166] COND TRUE 1 [L1168] EXPR s->state [L1168] state = s->state [L1169] EXPR s->state [L1169] COND FALSE !(s->state == 12292) [L1172] EXPR s->state [L1172] COND FALSE !(s->state == 16384) [L1175] EXPR s->state [L1175] COND FALSE !(s->state == 8192) [L1178] EXPR s->state [L1178] COND FALSE !(s->state == 24576) [L1181] EXPR s->state [L1181] COND FALSE !(s->state == 8195) [L1184] EXPR s->state [L1184] COND FALSE !(s->state == 8480) [L1187] EXPR s->state [L1187] COND FALSE !(s->state == 8481) [L1190] EXPR s->state [L1190] COND FALSE !(s->state == 8482) [L1193] EXPR s->state [L1193] COND TRUE s->state == 8464 [L1349] s->shutdown = 0 [L1350] ret = __VERIFIER_nondet_int() [L1351] COND TRUE blastFlag == 0 [L1352] blastFlag = 1 [L1356] COND FALSE !(ret <= 0) [L1361] got_new_session = 1 [L1362] s->state = 8496 [L1363] s->init_num = 0 [L1696] EXPR s->s3 [L1696] EXPR (s->s3)->tmp.reuse_message [L1696] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1725] skip = 0 [L1166] COND TRUE 1 [L1168] EXPR s->state [L1168] state = s->state [L1169] EXPR s->state [L1169] COND FALSE !(s->state == 12292) [L1172] EXPR s->state [L1172] COND FALSE !(s->state == 16384) [L1175] EXPR s->state [L1175] COND FALSE !(s->state == 8192) [L1178] EXPR s->state [L1178] COND FALSE !(s->state == 24576) [L1181] EXPR s->state [L1181] COND FALSE !(s->state == 8195) [L1184] EXPR s->state [L1184] COND FALSE !(s->state == 8480) [L1187] EXPR s->state [L1187] COND FALSE !(s->state == 8481) [L1190] EXPR s->state [L1190] COND FALSE !(s->state == 8482) [L1193] EXPR s->state [L1193] COND FALSE !(s->state == 8464) [L1196] EXPR s->state [L1196] COND FALSE !(s->state == 8465) [L1199] EXPR s->state [L1199] COND FALSE !(s->state == 8466) [L1202] EXPR s->state [L1202] COND TRUE s->state == 8496 [L1367] ret = __VERIFIER_nondet_int() [L1368] COND TRUE blastFlag == 1 [L1369] blastFlag = 2 [L1373] COND FALSE !(ret <= 0) [L1378] s->hit [L1378] COND TRUE s->hit [L1379] s->state = 8656 [L1383] s->init_num = 0 [L1696] EXPR s->s3 [L1696] EXPR (s->s3)->tmp.reuse_message [L1696] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1725] skip = 0 [L1166] COND TRUE 1 [L1168] EXPR s->state [L1168] state = s->state [L1169] EXPR s->state [L1169] COND FALSE !(s->state == 12292) [L1172] EXPR s->state [L1172] COND FALSE !(s->state == 16384) [L1175] EXPR s->state [L1175] COND FALSE !(s->state == 8192) [L1178] EXPR s->state [L1178] COND FALSE !(s->state == 24576) [L1181] EXPR s->state [L1181] COND FALSE !(s->state == 8195) [L1184] EXPR s->state [L1184] COND FALSE !(s->state == 8480) [L1187] EXPR s->state [L1187] COND FALSE !(s->state == 8481) [L1190] EXPR s->state [L1190] COND FALSE !(s->state == 8482) [L1193] EXPR s->state [L1193] COND FALSE !(s->state == 8464) [L1196] EXPR s->state [L1196] COND FALSE !(s->state == 8465) [L1199] EXPR s->state [L1199] COND FALSE !(s->state == 8466) [L1202] EXPR s->state [L1202] COND FALSE !(s->state == 8496) [L1205] EXPR s->state [L1205] COND FALSE !(s->state == 8497) [L1208] EXPR s->state [L1208] COND FALSE !(s->state == 8512) [L1211] EXPR s->state [L1211] COND FALSE !(s->state == 8513) [L1214] EXPR s->state [L1214] COND FALSE !(s->state == 8528) [L1217] EXPR s->state [L1217] COND FALSE !(s->state == 8529) [L1220] EXPR s->state [L1220] COND FALSE !(s->state == 8544) [L1223] EXPR s->state [L1223] COND FALSE !(s->state == 8545) [L1226] EXPR s->state [L1226] COND FALSE !(s->state == 8560) [L1229] EXPR s->state [L1229] COND FALSE !(s->state == 8561) [L1232] EXPR s->state [L1232] COND FALSE !(s->state == 8448) [L1235] EXPR s->state [L1235] COND FALSE !(s->state == 8576) [L1238] EXPR s->state [L1238] COND FALSE !(s->state == 8577) [L1241] EXPR s->state [L1241] COND FALSE !(s->state == 8592) [L1244] EXPR s->state [L1244] COND FALSE !(s->state == 8593) [L1247] EXPR s->state [L1247] COND FALSE !(s->state == 8608) [L1250] EXPR s->state [L1250] COND FALSE !(s->state == 8609) [L1253] EXPR s->state [L1253] COND FALSE !(s->state == 8640) [L1256] EXPR s->state [L1256] COND FALSE !(s->state == 8641) [L1259] EXPR s->state [L1259] COND TRUE s->state == 8656 [L1583] EXPR s->session [L1583] EXPR s->s3 [L1583] EXPR (s->s3)->tmp.new_cipher [L1583] (s->session)->cipher = (s->s3)->tmp.new_cipher [L1584] tmp___9 = __VERIFIER_nondet_int() [L1585] COND FALSE !(! tmp___9) [L1591] ret = __VERIFIER_nondet_int() [L1592] COND TRUE blastFlag == 2 [L1593] blastFlag = 5 [L1597] COND FALSE !(ret <= 0) [L1602] s->state = 8672 [L1603] s->init_num = 0 [L1604] tmp___10 = __VERIFIER_nondet_int() [L1605] COND FALSE !(! tmp___10) [L1696] EXPR s->s3 [L1696] EXPR (s->s3)->tmp.reuse_message [L1696] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1725] skip = 0 [L1166] COND TRUE 1 [L1168] EXPR s->state [L1168] state = s->state [L1169] EXPR s->state [L1169] COND FALSE !(s->state == 12292) [L1172] EXPR s->state [L1172] COND FALSE !(s->state == 16384) [L1175] EXPR s->state [L1175] COND FALSE !(s->state == 8192) [L1178] EXPR s->state [L1178] COND FALSE !(s->state == 24576) [L1181] EXPR s->state [L1181] COND FALSE !(s->state == 8195) [L1184] EXPR s->state [L1184] COND FALSE !(s->state == 8480) [L1187] EXPR s->state [L1187] COND FALSE !(s->state == 8481) [L1190] EXPR s->state [L1190] COND FALSE !(s->state == 8482) [L1193] EXPR s->state [L1193] COND FALSE !(s->state == 8464) [L1196] EXPR s->state [L1196] COND FALSE !(s->state == 8465) [L1199] EXPR s->state [L1199] COND FALSE !(s->state == 8466) [L1202] EXPR s->state [L1202] COND FALSE !(s->state == 8496) [L1205] EXPR s->state [L1205] COND FALSE !(s->state == 8497) [L1208] EXPR s->state [L1208] COND FALSE !(s->state == 8512) [L1211] EXPR s->state [L1211] COND FALSE !(s->state == 8513) [L1214] EXPR s->state [L1214] COND FALSE !(s->state == 8528) [L1217] EXPR s->state [L1217] COND FALSE !(s->state == 8529) [L1220] EXPR s->state [L1220] COND FALSE !(s->state == 8544) [L1223] EXPR s->state [L1223] COND FALSE !(s->state == 8545) [L1226] EXPR s->state [L1226] COND FALSE !(s->state == 8560) [L1229] EXPR s->state [L1229] COND FALSE !(s->state == 8561) [L1232] EXPR s->state [L1232] COND FALSE !(s->state == 8448) [L1235] EXPR s->state [L1235] COND FALSE !(s->state == 8576) [L1238] EXPR s->state [L1238] COND FALSE !(s->state == 8577) [L1241] EXPR s->state [L1241] COND FALSE !(s->state == 8592) [L1244] EXPR s->state [L1244] COND FALSE !(s->state == 8593) [L1247] EXPR s->state [L1247] COND FALSE !(s->state == 8608) [L1250] EXPR s->state [L1250] COND FALSE !(s->state == 8609) [L1253] EXPR s->state [L1253] COND FALSE !(s->state == 8640) [L1256] EXPR s->state [L1256] COND FALSE !(s->state == 8641) [L1259] EXPR s->state [L1259] COND FALSE !(s->state == 8656) [L1262] EXPR s->state [L1262] COND FALSE !(s->state == 8657) [L1265] EXPR s->state [L1265] COND TRUE s->state == 8672 [L1614] ret = __VERIFIER_nondet_int() [L1615] COND FALSE !(blastFlag == 4) [L1618] COND TRUE blastFlag == 5 [L1737] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 186 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 86.6s, OverallIterations: 28, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 79.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 30 mSolverCounterUnknown, 1649 SdHoareTripleChecker+Valid, 78.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1649 mSDsluCounter, 12408 SdHoareTripleChecker+Invalid, 75.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7483 mSDsCounter, 588 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10543 IncrementalHoareTripleChecker+Invalid, 11161 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 588 mSolverCounterUnsat, 4925 mSDtfsCounter, 10543 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 203 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=868occurred in iteration=25, InterpolantAutomatonStates: 135, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 27 MinimizatonAttempts, 947 StatesRemovedByMinimization, 22 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 [2022-02-15 03:11:24,234 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...