/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.07.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-5d317bd [2022-03-18 16:28:42,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-18 16:28:42,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-18 16:28:42,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-18 16:28:42,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-18 16:28:42,965 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-18 16:28:42,968 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-18 16:28:42,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-18 16:28:42,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-18 16:28:42,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-18 16:28:42,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-18 16:28:42,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-18 16:28:42,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-18 16:28:42,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-18 16:28:42,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-18 16:28:42,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-18 16:28:42,980 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-18 16:28:42,981 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-18 16:28:42,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-18 16:28:42,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-18 16:28:42,988 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-18 16:28:42,991 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-18 16:28:42,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-18 16:28:42,992 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-18 16:28:42,993 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-18 16:28:42,996 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-18 16:28:42,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-18 16:28:42,996 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-18 16:28:42,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-18 16:28:42,997 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-18 16:28:42,998 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-03-18 16:28:43,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-18 16:28:43,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-18 16:28:43,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-18 16:28:43,004 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2022-03-18 16:28:43,033 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-18 16:28:43,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-18 16:28:43,034 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-18 16:28:43,034 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-18 16:28:43,035 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-18 16:28:43,035 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-18 16:28:43,036 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-18 16:28:43,036 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-18 16:28:43,036 INFO L138 SettingsManager]: * Use SBE=true [2022-03-18 16:28:43,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-18 16:28:43,037 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-18 16:28:43,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-18 16:28:43,037 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-18 16:28:43,037 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-18 16:28:43,038 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-18 16:28:43,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-18 16:28:43,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-18 16:28:43,038 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-18 16:28:43,039 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-18 16:28:43,039 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-18 16:28:43,040 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-18 16:28:43,040 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-18 16:28:43,040 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-18 16:28:43,040 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-18 16:28:43,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 16:28:43,042 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-18 16:28:43,042 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-18 16:28:43,042 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-18 16:28:43,042 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-18 16:28:43,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-18 16:28:43,043 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-18 16:28:43,043 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-03-18 16:28:43,043 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-18 16:28:43,043 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-18 16:28:43,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-18 16:28:43,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-18 16:28:43,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-18 16:28:43,267 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-18 16:28:43,269 INFO L275 PluginConnector]: CDTParser initialized [2022-03-18 16:28:43,270 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.07.i.cil-1.c [2022-03-18 16:28:43,333 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79c26234c/96c1a45727b14bacae4df7779a0f556f/FLAG020329b56 [2022-03-18 16:28:43,769 INFO L306 CDTParser]: Found 1 translation units. [2022-03-18 16:28:43,769 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.07.i.cil-1.c [2022-03-18 16:28:43,784 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79c26234c/96c1a45727b14bacae4df7779a0f556f/FLAG020329b56 [2022-03-18 16:28:43,795 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79c26234c/96c1a45727b14bacae4df7779a0f556f [2022-03-18 16:28:43,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-18 16:28:43,797 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-18 16:28:43,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-18 16:28:43,799 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-18 16:28:43,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-18 16:28:43,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 04:28:43" (1/1) ... [2022-03-18 16:28:43,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27098a03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:28:43, skipping insertion in model container [2022-03-18 16:28:43,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 04:28:43" (1/1) ... [2022-03-18 16:28:43,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-18 16:28:43,846 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-18 16:28:44,133 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.07.i.cil-1.c[74369,74382] [2022-03-18 16:28:44,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 16:28:44,148 INFO L203 MainTranslator]: Completed pre-run [2022-03-18 16:28:44,208 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.07.i.cil-1.c[74369,74382] [2022-03-18 16:28:44,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 16:28:44,220 INFO L208 MainTranslator]: Completed translation [2022-03-18 16:28:44,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:28:44 WrapperNode [2022-03-18 16:28:44,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-18 16:28:44,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-18 16:28:44,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-18 16:28:44,222 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-18 16:28:44,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:28:44" (1/1) ... [2022-03-18 16:28:44,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:28:44" (1/1) ... [2022-03-18 16:28:44,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:28:44" (1/1) ... [2022-03-18 16:28:44,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:28:44" (1/1) ... [2022-03-18 16:28:44,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:28:44" (1/1) ... [2022-03-18 16:28:44,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:28:44" (1/1) ... [2022-03-18 16:28:44,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:28:44" (1/1) ... [2022-03-18 16:28:44,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-18 16:28:44,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-18 16:28:44,286 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-18 16:28:44,286 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-18 16:28:44,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:28:44" (1/1) ... [2022-03-18 16:28:44,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 16:28:44,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:28:44,324 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-18 16:28:44,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-18 16:28:44,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-18 16:28:44,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-18 16:28:44,359 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-18 16:28:44,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-18 16:28:44,361 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-18 16:28:44,361 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-18 16:28:44,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-18 16:28:44,361 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-18 16:28:44,361 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-18 16:28:44,361 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-18 16:28:44,361 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-18 16:28:44,361 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-18 16:28:44,361 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-18 16:28:44,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-18 16:28:44,362 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-18 16:28:44,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-18 16:28:44,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-18 16:28:44,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-18 16:28:44,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-18 16:28:44,362 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-18 16:28:44,362 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-18 16:28:44,362 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-18 16:28:44,362 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-18 16:28:44,362 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-18 16:28:44,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-18 16:28:44,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-18 16:28:44,362 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-18 16:28:44,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-18 16:28:44,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-18 16:28:44,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-18 16:28:44,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-18 16:28:44,363 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-18 16:28:44,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-18 16:28:44,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-18 16:28:44,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-18 16:28:44,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-18 16:28:44,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-18 16:28:44,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-18 16:28:44,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-18 16:28:44,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-18 16:28:44,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-18 16:28:44,468 INFO L234 CfgBuilder]: Building ICFG [2022-03-18 16:28:44,469 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-18 16:28:45,125 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-18 16:28:45,581 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-18 16:28:45,582 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-18 16:28:45,593 INFO L275 CfgBuilder]: Performing block encoding [2022-03-18 16:28:45,598 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-18 16:28:45,599 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-18 16:28:45,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 04:28:45 BoogieIcfgContainer [2022-03-18 16:28:45,601 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-18 16:28:45,602 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-18 16:28:45,602 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-18 16:28:45,604 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-18 16:28:45,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.03 04:28:43" (1/3) ... [2022-03-18 16:28:45,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7681712f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 04:28:45, skipping insertion in model container [2022-03-18 16:28:45,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:28:44" (2/3) ... [2022-03-18 16:28:45,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7681712f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 04:28:45, skipping insertion in model container [2022-03-18 16:28:45,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 04:28:45" (3/3) ... [2022-03-18 16:28:45,607 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.07.i.cil-1.c [2022-03-18 16:28:45,611 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-18 16:28:45,612 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-18 16:28:45,645 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-18 16:28:45,649 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-18 16:28:45,649 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-18 16:28:45,663 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-18 16:28:45,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-03-18 16:28:45,678 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:28:45,679 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:28:45,679 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:28:45,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:28:45,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1538020646, now seen corresponding path program 1 times [2022-03-18 16:28:45,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:28:45,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100928294] [2022-03-18 16:28:45,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:28:45,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:28:45,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:46,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:28:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:46,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:28:46,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:28:46,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100928294] [2022-03-18 16:28:46,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100928294] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:28:46,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:28:46,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:28:46,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145031465] [2022-03-18 16:28:46,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:28:46,066 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:28:46,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:28:46,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:28:46,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:28:46,090 INFO L87 Difference]: Start difference. First operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 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 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:48,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:28:48,754 INFO L93 Difference]: Finished difference Result 428 states and 723 transitions. [2022-03-18 16:28:48,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:28:48,756 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 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 42 [2022-03-18 16:28:48,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:28:48,764 INFO L225 Difference]: With dead ends: 428 [2022-03-18 16:28:48,764 INFO L226 Difference]: Without dead ends: 259 [2022-03-18 16:28:48,767 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:28:48,769 INFO L912 BasicCegarLoop]: 157 mSDtfsCounter, 163 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-18 16:28:48,770 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 461 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-18 16:28:48,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-03-18 16:28:48,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 170. [2022-03-18 16:28:48,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 165 states have (on average 1.5818181818181818) internal successors, (261), 165 states have internal predecessors, (261), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:48,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 265 transitions. [2022-03-18 16:28:48,828 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 265 transitions. Word has length 42 [2022-03-18 16:28:48,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:28:48,828 INFO L478 AbstractCegarLoop]: Abstraction has 170 states and 265 transitions. [2022-03-18 16:28:48,828 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:48,829 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 265 transitions. [2022-03-18 16:28:48,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-03-18 16:28:48,830 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:28:48,830 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:28:48,830 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-18 16:28:48,830 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:28:48,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:28:48,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1015183371, now seen corresponding path program 1 times [2022-03-18 16:28:48,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:28:48,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576413194] [2022-03-18 16:28:48,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:28:48,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:28:48,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:48,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:28:48,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:48,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:28:48,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:28:48,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576413194] [2022-03-18 16:28:48,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576413194] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:28:48,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:28:48,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:28:48,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268186379] [2022-03-18 16:28:48,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:28:48,967 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:28:48,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:28:48,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:28:48,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:28:48,968 INFO L87 Difference]: Start difference. First operand 170 states and 265 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:52,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:28:53,075 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:28:53,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:28:53,597 INFO L93 Difference]: Finished difference Result 442 states and 693 transitions. [2022-03-18 16:28:53,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:28:53,598 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 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 43 [2022-03-18 16:28:53,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:28:53,600 INFO L225 Difference]: With dead ends: 442 [2022-03-18 16:28:53,600 INFO L226 Difference]: Without dead ends: 287 [2022-03-18 16:28:53,604 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:28:53,605 INFO L912 BasicCegarLoop]: 117 mSDtfsCounter, 130 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-18 16:28:53,605 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 342 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-18 16:28:53,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-03-18 16:28:53,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 199. [2022-03-18 16:28:53,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.6134020618556701) internal successors, (313), 194 states have internal predecessors, (313), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:53,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 317 transitions. [2022-03-18 16:28:53,616 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 317 transitions. Word has length 43 [2022-03-18 16:28:53,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:28:53,616 INFO L478 AbstractCegarLoop]: Abstraction has 199 states and 317 transitions. [2022-03-18 16:28:53,617 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:53,617 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 317 transitions. [2022-03-18 16:28:53,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-18 16:28:53,618 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:28:53,618 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:28:53,618 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-18 16:28:53,618 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:28:53,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:28:53,619 INFO L85 PathProgramCache]: Analyzing trace with hash 887448580, now seen corresponding path program 1 times [2022-03-18 16:28:53,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:28:53,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357115593] [2022-03-18 16:28:53,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:28:53,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:28:53,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:53,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:28:53,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:53,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:28:53,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:28:53,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357115593] [2022-03-18 16:28:53,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357115593] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:28:53,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:28:53,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:28:53,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046106702] [2022-03-18 16:28:53,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:28:53,721 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:28:53,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:28:53,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:28:53,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:28:53,722 INFO L87 Difference]: Start difference. First operand 199 states and 317 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:56,021 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:28:56,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:28:56,552 INFO L93 Difference]: Finished difference Result 501 states and 796 transitions. [2022-03-18 16:28:56,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:28:56,553 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 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 48 [2022-03-18 16:28:56,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:28:56,554 INFO L225 Difference]: With dead ends: 501 [2022-03-18 16:28:56,554 INFO L226 Difference]: Without dead ends: 317 [2022-03-18 16:28:56,555 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:28:56,556 INFO L912 BasicCegarLoop]: 117 mSDtfsCounter, 119 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-18 16:28:56,556 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 342 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-18 16:28:56,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-03-18 16:28:56,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 239. [2022-03-18 16:28:56,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.641025641025641) internal successors, (384), 234 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) [2022-03-18 16:28:56,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 388 transitions. [2022-03-18 16:28:56,566 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 388 transitions. Word has length 48 [2022-03-18 16:28:56,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:28:56,566 INFO L478 AbstractCegarLoop]: Abstraction has 239 states and 388 transitions. [2022-03-18 16:28:56,567 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:28:56,567 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 388 transitions. [2022-03-18 16:28:56,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-18 16:28:56,572 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:28:56,572 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:28:56,572 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-18 16:28:56,573 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:28:56,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:28:56,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1734094884, now seen corresponding path program 1 times [2022-03-18 16:28:56,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:28:56,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920985385] [2022-03-18 16:28:56,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:28:56,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:28:56,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:56,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:28:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:28:56,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:28:56,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:28:56,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920985385] [2022-03-18 16:28:56,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920985385] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:28:56,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:28:56,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:28:56,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146482980] [2022-03-18 16:28:56,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:28:56,734 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:28:56,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:28:56,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:28:56,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:28:56,735 INFO L87 Difference]: Start difference. First operand 239 states and 388 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:00,229 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:00,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:29:00,691 INFO L93 Difference]: Finished difference Result 551 states and 886 transitions. [2022-03-18 16:29:00,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:29:00,691 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 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 49 [2022-03-18 16:29:00,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:29:00,693 INFO L225 Difference]: With dead ends: 551 [2022-03-18 16:29:00,693 INFO L226 Difference]: Without dead ends: 327 [2022-03-18 16:29:00,696 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:29:00,697 INFO L912 BasicCegarLoop]: 124 mSDtfsCounter, 118 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-18 16:29:00,697 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 356 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-03-18 16:29:00,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-03-18 16:29:00,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 250. [2022-03-18 16:29:00,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 245 states have (on average 1.653061224489796) internal successors, (405), 245 states have internal predecessors, (405), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:00,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 409 transitions. [2022-03-18 16:29:00,714 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 409 transitions. Word has length 49 [2022-03-18 16:29:00,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:29:00,714 INFO L478 AbstractCegarLoop]: Abstraction has 250 states and 409 transitions. [2022-03-18 16:29:00,714 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:00,714 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 409 transitions. [2022-03-18 16:29:00,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-03-18 16:29:00,718 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:29:00,719 INFO L500 BasicCegarLoop]: trace histogram [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] [2022-03-18 16:29:00,719 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-18 16:29:00,719 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:29:00,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:29:00,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1073389890, now seen corresponding path program 1 times [2022-03-18 16:29:00,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:29:00,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806475715] [2022-03-18 16:29:00,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:29:00,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:29:00,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:00,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:29:00,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:00,861 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-03-18 16:29:00,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:29:00,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806475715] [2022-03-18 16:29:00,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806475715] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:29:00,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:29:00,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:29:00,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539776967] [2022-03-18 16:29:00,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:29:00,862 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:29:00,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:29:00,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:29:00,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:29:00,863 INFO L87 Difference]: Start difference. First operand 250 states and 409 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:02,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:03,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:29:03,354 INFO L93 Difference]: Finished difference Result 513 states and 840 transitions. [2022-03-18 16:29:03,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:29:03,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 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 [2022-03-18 16:29:03,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:29:03,355 INFO L225 Difference]: With dead ends: 513 [2022-03-18 16:29:03,356 INFO L226 Difference]: Without dead ends: 278 [2022-03-18 16:29:03,356 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:29:03,357 INFO L912 BasicCegarLoop]: 186 mSDtfsCounter, 22 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-18 16:29:03,357 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 481 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 362 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-18 16:29:03,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-03-18 16:29:03,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 261. [2022-03-18 16:29:03,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.65625) internal successors, (424), 256 states have internal predecessors, (424), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:03,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 428 transitions. [2022-03-18 16:29:03,365 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 428 transitions. Word has length 70 [2022-03-18 16:29:03,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:29:03,365 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 428 transitions. [2022-03-18 16:29:03,365 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:03,366 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 428 transitions. [2022-03-18 16:29:03,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-18 16:29:03,366 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:29:03,367 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-03-18 16:29:03,367 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-18 16:29:03,374 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:29:03,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:29:03,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1770564040, now seen corresponding path program 1 times [2022-03-18 16:29:03,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:29:03,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149097988] [2022-03-18 16:29:03,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:29:03,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:29:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:03,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:29:03,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:03,495 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-18 16:29:03,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:29:03,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149097988] [2022-03-18 16:29:03,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149097988] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:29:03,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:29:03,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:29:03,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172444011] [2022-03-18 16:29:03,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:29:03,497 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:29:03,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:29:03,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:29:03,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:29:03,497 INFO L87 Difference]: Start difference. First operand 261 states and 428 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:05,953 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:07,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:08,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:29:08,144 INFO L93 Difference]: Finished difference Result 513 states and 839 transitions. [2022-03-18 16:29:08,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:29:08,145 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 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 [2022-03-18 16:29:08,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:29:08,146 INFO L225 Difference]: With dead ends: 513 [2022-03-18 16:29:08,146 INFO L226 Difference]: Without dead ends: 278 [2022-03-18 16:29:08,147 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:29:08,147 INFO L912 BasicCegarLoop]: 187 mSDtfsCounter, 24 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-18 16:29:08,147 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 483 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-18 16:29:08,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-03-18 16:29:08,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 261. [2022-03-18 16:29:08,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.65234375) internal successors, (423), 256 states have internal predecessors, (423), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:08,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 427 transitions. [2022-03-18 16:29:08,154 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 427 transitions. Word has length 83 [2022-03-18 16:29:08,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:29:08,154 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 427 transitions. [2022-03-18 16:29:08,154 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:08,154 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 427 transitions. [2022-03-18 16:29:08,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-18 16:29:08,156 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:29:08,156 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:29:08,156 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-18 16:29:08,156 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:29:08,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:29:08,156 INFO L85 PathProgramCache]: Analyzing trace with hash 22704056, now seen corresponding path program 1 times [2022-03-18 16:29:08,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:29:08,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720551865] [2022-03-18 16:29:08,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:29:08,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:29:08,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:08,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:29:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:08,273 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-18 16:29:08,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:29:08,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720551865] [2022-03-18 16:29:08,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720551865] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:29:08,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:29:08,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:29:08,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718155283] [2022-03-18 16:29:08,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:29:08,274 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:29:08,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:29:08,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:29:08,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:29:08,275 INFO L87 Difference]: Start difference. First operand 261 states and 427 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:10,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:11,953 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:13,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:29:13,048 INFO L93 Difference]: Finished difference Result 572 states and 923 transitions. [2022-03-18 16:29:13,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:29:13,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-18 16:29:13,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:29:13,050 INFO L225 Difference]: With dead ends: 572 [2022-03-18 16:29:13,050 INFO L226 Difference]: Without dead ends: 337 [2022-03-18 16:29:13,051 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:29:13,051 INFO L912 BasicCegarLoop]: 125 mSDtfsCounter, 146 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-18 16:29:13,052 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 358 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-03-18 16:29:13,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-03-18 16:29:13,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 261. [2022-03-18 16:29:13,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.63671875) internal successors, (419), 256 states have internal predecessors, (419), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:13,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 423 transitions. [2022-03-18 16:29:13,058 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 423 transitions. Word has length 84 [2022-03-18 16:29:13,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:29:13,058 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 423 transitions. [2022-03-18 16:29:13,058 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:13,058 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 423 transitions. [2022-03-18 16:29:13,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-18 16:29:13,059 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:29:13,059 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:29:13,060 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-18 16:29:13,060 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:29:13,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:29:13,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1270495820, now seen corresponding path program 1 times [2022-03-18 16:29:13,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:29:13,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880169876] [2022-03-18 16:29:13,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:29:13,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:29:13,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:13,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:29:13,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:13,175 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-18 16:29:13,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:29:13,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880169876] [2022-03-18 16:29:13,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880169876] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:29:13,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:29:13,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:29:13,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173830653] [2022-03-18 16:29:13,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:29:13,176 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:29:13,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:29:13,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:29:13,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:29:13,177 INFO L87 Difference]: Start difference. First operand 261 states and 423 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:15,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:15,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:29:15,663 INFO L93 Difference]: Finished difference Result 572 states and 916 transitions. [2022-03-18 16:29:15,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:29:15,664 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-18 16:29:15,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:29:15,665 INFO L225 Difference]: With dead ends: 572 [2022-03-18 16:29:15,665 INFO L226 Difference]: Without dead ends: 337 [2022-03-18 16:29:15,666 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:29:15,666 INFO L912 BasicCegarLoop]: 125 mSDtfsCounter, 144 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-18 16:29:15,666 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 358 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-18 16:29:15,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-03-18 16:29:15,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 261. [2022-03-18 16:29:15,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.62109375) internal successors, (415), 256 states have internal predecessors, (415), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:15,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 419 transitions. [2022-03-18 16:29:15,673 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 419 transitions. Word has length 84 [2022-03-18 16:29:15,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:29:15,673 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 419 transitions. [2022-03-18 16:29:15,673 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:15,673 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 419 transitions. [2022-03-18 16:29:15,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-18 16:29:15,674 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:29:15,674 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:29:15,674 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-18 16:29:15,674 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:29:15,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:29:15,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1693483075, now seen corresponding path program 1 times [2022-03-18 16:29:15,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:29:15,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633452983] [2022-03-18 16:29:15,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:29:15,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:29:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:15,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:29:15,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:15,789 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-18 16:29:15,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:29:15,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633452983] [2022-03-18 16:29:15,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633452983] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:29:15,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:29:15,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:29:15,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567463050] [2022-03-18 16:29:15,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:29:15,790 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:29:15,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:29:15,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:29:15,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:29:15,791 INFO L87 Difference]: Start difference. First operand 261 states and 419 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:16,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:18,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:21,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:22,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:29:22,048 INFO L93 Difference]: Finished difference Result 510 states and 821 transitions. [2022-03-18 16:29:22,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:29:22,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-18 16:29:22,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:29:22,050 INFO L225 Difference]: With dead ends: 510 [2022-03-18 16:29:22,050 INFO L226 Difference]: Without dead ends: 275 [2022-03-18 16:29:22,051 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:29:22,051 INFO L912 BasicCegarLoop]: 190 mSDtfsCounter, 20 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:29:22,051 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 489 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 356 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-03-18 16:29:22,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-03-18 16:29:22,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 261. [2022-03-18 16:29:22,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6171875) internal successors, (414), 256 states have internal predecessors, (414), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:22,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 418 transitions. [2022-03-18 16:29:22,057 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 418 transitions. Word has length 84 [2022-03-18 16:29:22,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:29:22,057 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 418 transitions. [2022-03-18 16:29:22,057 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:22,057 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 418 transitions. [2022-03-18 16:29:22,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-18 16:29:22,058 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:29:22,058 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2022-03-18 16:29:22,058 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-18 16:29:22,058 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:29:22,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:29:22,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1703458820, now seen corresponding path program 1 times [2022-03-18 16:29:22,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:29:22,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933758143] [2022-03-18 16:29:22,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:29:22,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:29:22,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:22,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:29:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:22,164 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-18 16:29:22,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:29:22,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933758143] [2022-03-18 16:29:22,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933758143] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:29:22,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:29:22,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:29:22,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660852632] [2022-03-18 16:29:22,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:29:22,165 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:29:22,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:29:22,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:29:22,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:29:22,169 INFO L87 Difference]: Start difference. First operand 261 states and 418 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:24,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:29:24,586 INFO L93 Difference]: Finished difference Result 571 states and 907 transitions. [2022-03-18 16:29:24,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:29:24,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-03-18 16:29:24,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:29:24,588 INFO L225 Difference]: With dead ends: 571 [2022-03-18 16:29:24,588 INFO L226 Difference]: Without dead ends: 336 [2022-03-18 16:29:24,588 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:29:24,589 INFO L912 BasicCegarLoop]: 126 mSDtfsCounter, 137 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:29:24,589 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 360 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:29:24,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-03-18 16:29:24,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 261. [2022-03-18 16:29:24,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6015625) internal successors, (410), 256 states have internal predecessors, (410), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:24,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 414 transitions. [2022-03-18 16:29:24,610 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 414 transitions. Word has length 84 [2022-03-18 16:29:24,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:29:24,610 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 414 transitions. [2022-03-18 16:29:24,610 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:24,610 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 414 transitions. [2022-03-18 16:29:24,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-18 16:29:24,611 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:29:24,611 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:29:24,611 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-18 16:29:24,611 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:29:24,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:29:24,612 INFO L85 PathProgramCache]: Analyzing trace with hash -336623119, now seen corresponding path program 1 times [2022-03-18 16:29:24,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:29:24,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527010068] [2022-03-18 16:29:24,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:29:24,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:29:24,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:24,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:29:24,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:24,727 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-18 16:29:24,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:29:24,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527010068] [2022-03-18 16:29:24,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527010068] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:29:24,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:29:24,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:29:24,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975841533] [2022-03-18 16:29:24,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:29:24,728 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:29:24,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:29:24,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:29:24,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:29:24,729 INFO L87 Difference]: Start difference. First operand 261 states and 414 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) [2022-03-18 16:29:26,737 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:27,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:29:27,111 INFO L93 Difference]: Finished difference Result 509 states and 812 transitions. [2022-03-18 16:29:27,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:29:27,111 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 85 [2022-03-18 16:29:27,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:29:27,112 INFO L225 Difference]: With dead ends: 509 [2022-03-18 16:29:27,112 INFO L226 Difference]: Without dead ends: 274 [2022-03-18 16:29:27,113 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:29:27,113 INFO L912 BasicCegarLoop]: 191 mSDtfsCounter, 22 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:29:27,113 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 491 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 352 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:29:27,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2022-03-18 16:29:27,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 261. [2022-03-18 16:29:27,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.59765625) internal successors, (409), 256 states have internal predecessors, (409), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:27,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 413 transitions. [2022-03-18 16:29:27,119 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 413 transitions. Word has length 85 [2022-03-18 16:29:27,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:29:27,119 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 413 transitions. [2022-03-18 16:29:27,119 INFO L479 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) [2022-03-18 16:29:27,119 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 413 transitions. [2022-03-18 16:29:27,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-18 16:29:27,120 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:29:27,120 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:29:27,120 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-18 16:29:27,120 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:29:27,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:29:27,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1658086991, now seen corresponding path program 1 times [2022-03-18 16:29:27,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:29:27,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140791031] [2022-03-18 16:29:27,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:29:27,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:29:27,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:27,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:29:27,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:27,225 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-18 16:29:27,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:29:27,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140791031] [2022-03-18 16:29:27,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140791031] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:29:27,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:29:27,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:29:27,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94066046] [2022-03-18 16:29:27,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:29:27,226 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:29:27,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:29:27,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:29:27,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:29:27,226 INFO L87 Difference]: Start difference. First operand 261 states and 413 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) [2022-03-18 16:29:28,628 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:30,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:29:30,204 INFO L93 Difference]: Finished difference Result 571 states and 899 transitions. [2022-03-18 16:29:30,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:29:30,205 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 86 [2022-03-18 16:29:30,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:29:30,206 INFO L225 Difference]: With dead ends: 571 [2022-03-18 16:29:30,206 INFO L226 Difference]: Without dead ends: 336 [2022-03-18 16:29:30,206 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:29:30,207 INFO L912 BasicCegarLoop]: 126 mSDtfsCounter, 140 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-18 16:29:30,207 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 360 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-18 16:29:30,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-03-18 16:29:30,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 261. [2022-03-18 16:29:30,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.58203125) internal successors, (405), 256 states have internal predecessors, (405), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:30,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 409 transitions. [2022-03-18 16:29:30,212 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 409 transitions. Word has length 86 [2022-03-18 16:29:30,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:29:30,213 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 409 transitions. [2022-03-18 16:29:30,213 INFO L479 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) [2022-03-18 16:29:30,213 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 409 transitions. [2022-03-18 16:29:30,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-18 16:29:30,213 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:29:30,214 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:29:30,214 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-18 16:29:30,214 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:29:30,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:29:30,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1580788918, now seen corresponding path program 1 times [2022-03-18 16:29:30,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:29:30,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649741304] [2022-03-18 16:29:30,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:29:30,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:29:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:30,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:29:30,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:30,311 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-18 16:29:30,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:29:30,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649741304] [2022-03-18 16:29:30,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649741304] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:29:30,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:29:30,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:29:30,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202852837] [2022-03-18 16:29:30,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:29:30,311 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:29:30,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:29:30,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:29:30,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:29:30,312 INFO L87 Difference]: Start difference. First operand 261 states and 409 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) [2022-03-18 16:29:32,605 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:34,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:34,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:29:34,949 INFO L93 Difference]: Finished difference Result 499 states and 791 transitions. [2022-03-18 16:29:34,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:29:34,950 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 87 [2022-03-18 16:29:34,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:29:34,954 INFO L225 Difference]: With dead ends: 499 [2022-03-18 16:29:34,954 INFO L226 Difference]: Without dead ends: 264 [2022-03-18 16:29:34,955 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:29:34,955 INFO L912 BasicCegarLoop]: 198 mSDtfsCounter, 11 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-18 16:29:34,956 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 505 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 341 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-03-18 16:29:34,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-03-18 16:29:34,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 261. [2022-03-18 16:29:34,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.578125) internal successors, (404), 256 states have internal predecessors, (404), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:34,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 408 transitions. [2022-03-18 16:29:34,960 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 408 transitions. Word has length 87 [2022-03-18 16:29:34,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:29:34,961 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 408 transitions. [2022-03-18 16:29:34,961 INFO L479 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) [2022-03-18 16:29:34,961 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 408 transitions. [2022-03-18 16:29:34,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-18 16:29:34,961 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:29:34,962 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-03-18 16:29:34,962 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-18 16:29:34,962 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:29:34,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:29:34,962 INFO L85 PathProgramCache]: Analyzing trace with hash -2127873441, now seen corresponding path program 1 times [2022-03-18 16:29:34,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:29:34,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800116934] [2022-03-18 16:29:34,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:29:34,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:29:35,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:35,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:29:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:35,050 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-18 16:29:35,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:29:35,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800116934] [2022-03-18 16:29:35,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800116934] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:29:35,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:29:35,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:29:35,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026470600] [2022-03-18 16:29:35,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:29:35,051 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:29:35,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:29:35,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:29:35,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:29:35,051 INFO L87 Difference]: Start difference. First operand 261 states and 408 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 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) [2022-03-18 16:29:38,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:39,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:29:39,219 INFO L93 Difference]: Finished difference Result 537 states and 846 transitions. [2022-03-18 16:29:39,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:29:39,219 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 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 87 [2022-03-18 16:29:39,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:29:39,221 INFO L225 Difference]: With dead ends: 537 [2022-03-18 16:29:39,221 INFO L226 Difference]: Without dead ends: 302 [2022-03-18 16:29:39,221 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:29:39,221 INFO L912 BasicCegarLoop]: 196 mSDtfsCounter, 30 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-18 16:29:39,222 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 507 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-03-18 16:29:39,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-03-18 16:29:39,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 283. [2022-03-18 16:29:39,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5755395683453237) internal successors, (438), 278 states have internal predecessors, (438), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:39,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 442 transitions. [2022-03-18 16:29:39,227 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 442 transitions. Word has length 87 [2022-03-18 16:29:39,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:29:39,227 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 442 transitions. [2022-03-18 16:29:39,227 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 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) [2022-03-18 16:29:39,227 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 442 transitions. [2022-03-18 16:29:39,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-03-18 16:29:39,228 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:29:39,228 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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] [2022-03-18 16:29:39,228 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-18 16:29:39,228 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:29:39,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:29:39,228 INFO L85 PathProgramCache]: Analyzing trace with hash 880442311, now seen corresponding path program 1 times [2022-03-18 16:29:39,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:29:39,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432785812] [2022-03-18 16:29:39,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:29:39,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:29:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:39,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:29:39,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:39,315 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-18 16:29:39,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:29:39,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432785812] [2022-03-18 16:29:39,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432785812] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:29:39,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:29:39,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:29:39,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29649197] [2022-03-18 16:29:39,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:29:39,316 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:29:39,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:29:39,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:29:39,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:29:39,316 INFO L87 Difference]: Start difference. First operand 283 states and 442 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:41,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:41,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:29:41,758 INFO L93 Difference]: Finished difference Result 655 states and 1026 transitions. [2022-03-18 16:29:41,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:29:41,758 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 100 [2022-03-18 16:29:41,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:29:41,760 INFO L225 Difference]: With dead ends: 655 [2022-03-18 16:29:41,760 INFO L226 Difference]: Without dead ends: 398 [2022-03-18 16:29:41,761 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:29:41,762 INFO L912 BasicCegarLoop]: 126 mSDtfsCounter, 138 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:29:41,763 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 360 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:29:41,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2022-03-18 16:29:41,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 299. [2022-03-18 16:29:41,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.5578231292517006) internal successors, (458), 294 states have internal predecessors, (458), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:41,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 462 transitions. [2022-03-18 16:29:41,769 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 462 transitions. Word has length 100 [2022-03-18 16:29:41,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:29:41,769 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 462 transitions. [2022-03-18 16:29:41,769 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:41,769 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 462 transitions. [2022-03-18 16:29:41,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-18 16:29:41,770 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:29:41,770 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-18 16:29:41,770 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-18 16:29:41,770 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:29:41,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:29:41,771 INFO L85 PathProgramCache]: Analyzing trace with hash -130486748, now seen corresponding path program 1 times [2022-03-18 16:29:41,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:29:41,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179389935] [2022-03-18 16:29:41,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:29:41,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:29:41,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:41,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:29:41,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:41,875 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-18 16:29:41,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:29:41,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179389935] [2022-03-18 16:29:41,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179389935] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:29:41,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:29:41,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:29:41,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937933235] [2022-03-18 16:29:41,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:29:41,878 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:29:41,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:29:41,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:29:41,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:29:41,878 INFO L87 Difference]: Start difference. First operand 299 states and 462 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:44,817 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:47,099 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:47,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:29:47,524 INFO L93 Difference]: Finished difference Result 647 states and 999 transitions. [2022-03-18 16:29:47,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:29:47,524 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 101 [2022-03-18 16:29:47,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:29:47,525 INFO L225 Difference]: With dead ends: 647 [2022-03-18 16:29:47,525 INFO L226 Difference]: Without dead ends: 374 [2022-03-18 16:29:47,526 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:29:47,526 INFO L912 BasicCegarLoop]: 126 mSDtfsCounter, 137 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-18 16:29:47,527 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 360 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 478 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-03-18 16:29:47,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2022-03-18 16:29:47,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 299. [2022-03-18 16:29:47,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.5442176870748299) internal successors, (454), 294 states have internal predecessors, (454), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:47,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 458 transitions. [2022-03-18 16:29:47,532 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 458 transitions. Word has length 101 [2022-03-18 16:29:47,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:29:47,532 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 458 transitions. [2022-03-18 16:29:47,532 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:47,532 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 458 transitions. [2022-03-18 16:29:47,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-03-18 16:29:47,533 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:29:47,533 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:29:47,533 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-18 16:29:47,533 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:29:47,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:29:47,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1045112784, now seen corresponding path program 1 times [2022-03-18 16:29:47,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:29:47,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865519135] [2022-03-18 16:29:47,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:29:47,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:29:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:47,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:29:47,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:47,626 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-18 16:29:47,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:29:47,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865519135] [2022-03-18 16:29:47,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865519135] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:29:47,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:29:47,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:29:47,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718881645] [2022-03-18 16:29:47,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:29:47,627 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:29:47,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:29:47,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:29:47,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:29:47,628 INFO L87 Difference]: Start difference. First operand 299 states and 458 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:50,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:29:50,532 INFO L93 Difference]: Finished difference Result 584 states and 901 transitions. [2022-03-18 16:29:50,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:29:50,532 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 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 102 [2022-03-18 16:29:50,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:29:50,533 INFO L225 Difference]: With dead ends: 584 [2022-03-18 16:29:50,533 INFO L226 Difference]: Without dead ends: 311 [2022-03-18 16:29:50,534 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:29:50,534 INFO L912 BasicCegarLoop]: 227 mSDtfsCounter, 19 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-18 16:29:50,534 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 568 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-18 16:29:50,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2022-03-18 16:29:50,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 299. [2022-03-18 16:29:50,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.5408163265306123) internal successors, (453), 294 states have internal predecessors, (453), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:50,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 457 transitions. [2022-03-18 16:29:50,540 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 457 transitions. Word has length 102 [2022-03-18 16:29:50,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:29:50,540 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 457 transitions. [2022-03-18 16:29:50,540 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:50,540 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 457 transitions. [2022-03-18 16:29:50,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-03-18 16:29:50,541 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:29:50,541 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:29:50,541 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-18 16:29:50,541 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:29:50,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:29:50,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1460823327, now seen corresponding path program 1 times [2022-03-18 16:29:50,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:29:50,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208828959] [2022-03-18 16:29:50,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:29:50,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:29:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:50,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:29:50,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:50,645 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-18 16:29:50,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:29:50,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208828959] [2022-03-18 16:29:50,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208828959] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:29:50,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:29:50,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:29:50,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497369742] [2022-03-18 16:29:50,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:29:50,646 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:29:50,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:29:50,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:29:50,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:29:50,646 INFO L87 Difference]: Start difference. First operand 299 states and 457 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) [2022-03-18 16:29:53,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:29:53,215 INFO L93 Difference]: Finished difference Result 589 states and 907 transitions. [2022-03-18 16:29:53,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:29:53,215 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 103 [2022-03-18 16:29:53,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:29:53,216 INFO L225 Difference]: With dead ends: 589 [2022-03-18 16:29:53,216 INFO L226 Difference]: Without dead ends: 316 [2022-03-18 16:29:53,217 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:29:53,217 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 36 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-18 16:29:53,217 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 511 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-18 16:29:53,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-03-18 16:29:53,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 299. [2022-03-18 16:29:53,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.5374149659863945) internal successors, (452), 294 states have internal predecessors, (452), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:53,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 456 transitions. [2022-03-18 16:29:53,222 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 456 transitions. Word has length 103 [2022-03-18 16:29:53,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:29:53,222 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 456 transitions. [2022-03-18 16:29:53,222 INFO L479 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) [2022-03-18 16:29:53,222 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 456 transitions. [2022-03-18 16:29:53,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-03-18 16:29:53,223 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:29:53,223 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:29:53,223 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-18 16:29:53,223 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:29:53,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:29:53,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1486400636, now seen corresponding path program 1 times [2022-03-18 16:29:53,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:29:53,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827280933] [2022-03-18 16:29:53,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:29:53,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:29:53,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:53,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:29:53,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:53,315 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-18 16:29:53,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:29:53,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827280933] [2022-03-18 16:29:53,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827280933] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:29:53,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:29:53,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:29:53,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23415116] [2022-03-18 16:29:53,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:29:53,316 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:29:53,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:29:53,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:29:53,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:29:53,317 INFO L87 Difference]: Start difference. First operand 299 states and 456 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:55,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:57,930 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:29:58,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:29:58,716 INFO L93 Difference]: Finished difference Result 579 states and 892 transitions. [2022-03-18 16:29:58,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:29:58,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 105 [2022-03-18 16:29:58,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:29:58,717 INFO L225 Difference]: With dead ends: 579 [2022-03-18 16:29:58,717 INFO L226 Difference]: Without dead ends: 306 [2022-03-18 16:29:58,718 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:29:58,718 INFO L912 BasicCegarLoop]: 206 mSDtfsCounter, 26 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:29:58,718 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 525 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 374 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-03-18 16:29:58,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2022-03-18 16:29:58,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 299. [2022-03-18 16:29:58,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.534013605442177) internal successors, (451), 294 states have internal predecessors, (451), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:58,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 455 transitions. [2022-03-18 16:29:58,725 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 455 transitions. Word has length 105 [2022-03-18 16:29:58,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:29:58,726 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 455 transitions. [2022-03-18 16:29:58,726 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:29:58,726 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 455 transitions. [2022-03-18 16:29:58,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-18 16:29:58,727 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:29:58,727 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-18 16:29:58,728 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-18 16:29:58,728 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:29:58,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:29:58,728 INFO L85 PathProgramCache]: Analyzing trace with hash -541256236, now seen corresponding path program 1 times [2022-03-18 16:29:58,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:29:58,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733561223] [2022-03-18 16:29:58,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:29:58,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:29:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:58,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:29:58,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:29:58,852 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 16:29:58,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:29:58,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733561223] [2022-03-18 16:29:58,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733561223] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:29:58,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:29:58,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:29:58,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611201850] [2022-03-18 16:29:58,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:29:58,853 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:29:58,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:29:58,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:29:58,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:29:58,854 INFO L87 Difference]: Start difference. First operand 299 states and 455 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:00,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:01,994 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:03,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:03,747 INFO L93 Difference]: Finished difference Result 659 states and 1007 transitions. [2022-03-18 16:30:03,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:30:03,748 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 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 109 [2022-03-18 16:30:03,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:03,749 INFO L225 Difference]: With dead ends: 659 [2022-03-18 16:30:03,749 INFO L226 Difference]: Without dead ends: 386 [2022-03-18 16:30:03,750 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:30:03,750 INFO L912 BasicCegarLoop]: 189 mSDtfsCounter, 80 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:03,750 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 493 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-03-18 16:30:03,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2022-03-18 16:30:03,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 327. [2022-03-18 16:30:03,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 322 states have (on average 1.531055900621118) internal successors, (493), 322 states have internal predecessors, (493), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:03,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 497 transitions. [2022-03-18 16:30:03,755 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 497 transitions. Word has length 109 [2022-03-18 16:30:03,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:03,755 INFO L478 AbstractCegarLoop]: Abstraction has 327 states and 497 transitions. [2022-03-18 16:30:03,755 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:03,755 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 497 transitions. [2022-03-18 16:30:03,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-18 16:30:03,756 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:03,756 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-18 16:30:03,756 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-18 16:30:03,756 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:03,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:03,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1420318422, now seen corresponding path program 1 times [2022-03-18 16:30:03,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:03,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800592143] [2022-03-18 16:30:03,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:03,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:03,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:03,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:03,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:03,871 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 16:30:03,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:03,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800592143] [2022-03-18 16:30:03,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800592143] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:30:03,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:30:03,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:30:03,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564319175] [2022-03-18 16:30:03,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:03,872 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:30:03,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:03,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:30:03,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:30:03,873 INFO L87 Difference]: Start difference. First operand 327 states and 497 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:04,891 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:06,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:08,894 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:09,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:09,314 INFO L93 Difference]: Finished difference Result 743 states and 1134 transitions. [2022-03-18 16:30:09,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:30:09,314 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 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 109 [2022-03-18 16:30:09,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:09,315 INFO L225 Difference]: With dead ends: 743 [2022-03-18 16:30:09,315 INFO L226 Difference]: Without dead ends: 442 [2022-03-18 16:30:09,316 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:30:09,316 INFO L912 BasicCegarLoop]: 126 mSDtfsCounter, 127 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 57 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:09,317 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 360 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 480 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-03-18 16:30:09,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2022-03-18 16:30:09,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 325. [2022-03-18 16:30:09,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 320 states have (on average 1.528125) internal successors, (489), 320 states have internal predecessors, (489), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:09,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 493 transitions. [2022-03-18 16:30:09,323 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 493 transitions. Word has length 109 [2022-03-18 16:30:09,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:09,323 INFO L478 AbstractCegarLoop]: Abstraction has 325 states and 493 transitions. [2022-03-18 16:30:09,323 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:09,323 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 493 transitions. [2022-03-18 16:30:09,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-18 16:30:09,324 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:09,324 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:30:09,324 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-18 16:30:09,324 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:09,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:09,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1022958803, now seen corresponding path program 1 times [2022-03-18 16:30:09,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:09,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213999921] [2022-03-18 16:30:09,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:09,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:09,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:09,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:09,418 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 16:30:09,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:09,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213999921] [2022-03-18 16:30:09,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213999921] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:30:09,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:30:09,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:30:09,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697727512] [2022-03-18 16:30:09,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:09,418 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:30:09,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:09,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:30:09,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:30:09,419 INFO L87 Difference]: Start difference. First operand 325 states and 493 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:11,426 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:11,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:11,843 INFO L93 Difference]: Finished difference Result 709 states and 1079 transitions. [2022-03-18 16:30:11,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:30:11,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 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 110 [2022-03-18 16:30:11,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:11,845 INFO L225 Difference]: With dead ends: 709 [2022-03-18 16:30:11,845 INFO L226 Difference]: Without dead ends: 410 [2022-03-18 16:30:11,845 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:30:11,846 INFO L912 BasicCegarLoop]: 189 mSDtfsCounter, 77 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:11,846 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 493 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:30:11,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-03-18 16:30:11,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 354. [2022-03-18 16:30:11,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 349 states have (on average 1.524355300859599) internal successors, (532), 349 states have internal predecessors, (532), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:11,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 536 transitions. [2022-03-18 16:30:11,855 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 536 transitions. Word has length 110 [2022-03-18 16:30:11,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:11,855 INFO L478 AbstractCegarLoop]: Abstraction has 354 states and 536 transitions. [2022-03-18 16:30:11,855 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:11,855 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 536 transitions. [2022-03-18 16:30:11,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-18 16:30:11,856 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:11,856 INFO L500 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:30:11,856 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-18 16:30:11,856 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:11,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:11,857 INFO L85 PathProgramCache]: Analyzing trace with hash 623048725, now seen corresponding path program 1 times [2022-03-18 16:30:11,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:11,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794781048] [2022-03-18 16:30:11,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:11,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:11,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:11,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:11,980 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 16:30:11,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:11,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794781048] [2022-03-18 16:30:11,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794781048] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:30:11,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:30:11,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:30:11,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555214228] [2022-03-18 16:30:11,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:11,982 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:30:11,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:11,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:30:11,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:30:11,982 INFO L87 Difference]: Start difference. First operand 354 states and 536 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:13,990 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:14,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:14,418 INFO L93 Difference]: Finished difference Result 735 states and 1117 transitions. [2022-03-18 16:30:14,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:30:14,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 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 110 [2022-03-18 16:30:14,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:14,420 INFO L225 Difference]: With dead ends: 735 [2022-03-18 16:30:14,420 INFO L226 Difference]: Without dead ends: 407 [2022-03-18 16:30:14,420 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:30:14,421 INFO L912 BasicCegarLoop]: 192 mSDtfsCounter, 70 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:14,421 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 499 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:30:14,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-03-18 16:30:14,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 359. [2022-03-18 16:30:14,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 354 states have (on average 1.5225988700564972) internal successors, (539), 354 states have internal predecessors, (539), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:14,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 543 transitions. [2022-03-18 16:30:14,427 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 543 transitions. Word has length 110 [2022-03-18 16:30:14,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:14,427 INFO L478 AbstractCegarLoop]: Abstraction has 359 states and 543 transitions. [2022-03-18 16:30:14,427 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:14,427 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 543 transitions. [2022-03-18 16:30:14,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-18 16:30:14,428 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:14,428 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:30:14,428 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-18 16:30:14,428 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:14,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:14,428 INFO L85 PathProgramCache]: Analyzing trace with hash -343686549, now seen corresponding path program 1 times [2022-03-18 16:30:14,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:14,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749461993] [2022-03-18 16:30:14,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:14,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:14,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:14,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:14,525 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-03-18 16:30:14,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:14,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749461993] [2022-03-18 16:30:14,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749461993] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:30:14,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:30:14,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:30:14,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64777974] [2022-03-18 16:30:14,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:14,526 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:30:14,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:14,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:30:14,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:30:14,526 INFO L87 Difference]: Start difference. First operand 359 states and 543 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:17,195 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:18,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:18,486 INFO L93 Difference]: Finished difference Result 738 states and 1123 transitions. [2022-03-18 16:30:18,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:30:18,487 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 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 110 [2022-03-18 16:30:18,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:18,488 INFO L225 Difference]: With dead ends: 738 [2022-03-18 16:30:18,488 INFO L226 Difference]: Without dead ends: 405 [2022-03-18 16:30:18,489 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:30:18,489 INFO L912 BasicCegarLoop]: 245 mSDtfsCounter, 36 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:18,489 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 603 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-03-18 16:30:18,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-03-18 16:30:18,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 383. [2022-03-18 16:30:18,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 378 states have (on average 1.5211640211640212) internal successors, (575), 378 states have internal predecessors, (575), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:18,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 579 transitions. [2022-03-18 16:30:18,495 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 579 transitions. Word has length 110 [2022-03-18 16:30:18,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:18,496 INFO L478 AbstractCegarLoop]: Abstraction has 383 states and 579 transitions. [2022-03-18 16:30:18,496 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:18,496 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 579 transitions. [2022-03-18 16:30:18,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-03-18 16:30:18,496 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:18,497 INFO L500 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:30:18,497 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-18 16:30:18,497 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:18,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:18,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1495666253, now seen corresponding path program 1 times [2022-03-18 16:30:18,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:18,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791204284] [2022-03-18 16:30:18,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:18,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:18,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:18,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:18,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:18,601 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 16:30:18,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:18,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791204284] [2022-03-18 16:30:18,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791204284] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:30:18,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:30:18,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:30:18,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730372185] [2022-03-18 16:30:18,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:18,602 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:30:18,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:18,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:30:18,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:30:18,602 INFO L87 Difference]: Start difference. First operand 383 states and 579 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) [2022-03-18 16:30:20,054 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:21,786 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:23,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:23,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:23,893 INFO L93 Difference]: Finished difference Result 855 states and 1297 transitions. [2022-03-18 16:30:23,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:30:23,893 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 [2022-03-18 16:30:23,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:23,894 INFO L225 Difference]: With dead ends: 855 [2022-03-18 16:30:23,894 INFO L226 Difference]: Without dead ends: 498 [2022-03-18 16:30:23,895 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:30:23,895 INFO L912 BasicCegarLoop]: 119 mSDtfsCounter, 116 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:23,896 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 346 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-03-18 16:30:23,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2022-03-18 16:30:23,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 420. [2022-03-18 16:30:23,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 415 states have (on average 1.5253012048192771) internal successors, (633), 415 states have internal predecessors, (633), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:23,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 637 transitions. [2022-03-18 16:30:23,902 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 637 transitions. Word has length 121 [2022-03-18 16:30:23,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:23,902 INFO L478 AbstractCegarLoop]: Abstraction has 420 states and 637 transitions. [2022-03-18 16:30:23,902 INFO L479 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) [2022-03-18 16:30:23,902 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 637 transitions. [2022-03-18 16:30:23,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-18 16:30:23,903 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:23,903 INFO L500 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:30:23,903 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-18 16:30:23,903 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:23,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:23,904 INFO L85 PathProgramCache]: Analyzing trace with hash 370746785, now seen corresponding path program 1 times [2022-03-18 16:30:23,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:23,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933413873] [2022-03-18 16:30:23,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:23,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:23,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:23,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:23,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:23,987 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 16:30:23,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:23,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933413873] [2022-03-18 16:30:23,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933413873] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:30:23,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:30:23,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:30:23,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117052847] [2022-03-18 16:30:23,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:23,988 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:30:23,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:23,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:30:23,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:30:23,989 INFO L87 Difference]: Start difference. First operand 420 states and 637 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:26,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:26,893 INFO L93 Difference]: Finished difference Result 889 states and 1349 transitions. [2022-03-18 16:30:26,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:30:26,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 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 122 [2022-03-18 16:30:26,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:26,895 INFO L225 Difference]: With dead ends: 889 [2022-03-18 16:30:26,895 INFO L226 Difference]: Without dead ends: 495 [2022-03-18 16:30:26,896 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:30:26,896 INFO L912 BasicCegarLoop]: 119 mSDtfsCounter, 115 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:26,896 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 346 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-18 16:30:26,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2022-03-18 16:30:26,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 420. [2022-03-18 16:30:26,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 415 states have (on average 1.5204819277108435) internal successors, (631), 415 states have internal predecessors, (631), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:26,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 635 transitions. [2022-03-18 16:30:26,902 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 635 transitions. Word has length 122 [2022-03-18 16:30:26,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:26,902 INFO L478 AbstractCegarLoop]: Abstraction has 420 states and 635 transitions. [2022-03-18 16:30:26,902 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:26,903 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 635 transitions. [2022-03-18 16:30:26,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-03-18 16:30:26,903 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:26,903 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:30:26,903 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-18 16:30:26,904 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:26,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:26,904 INFO L85 PathProgramCache]: Analyzing trace with hash 949148907, now seen corresponding path program 1 times [2022-03-18 16:30:26,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:26,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562679035] [2022-03-18 16:30:26,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:26,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:26,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:26,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:27,015 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-03-18 16:30:27,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:27,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562679035] [2022-03-18 16:30:27,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562679035] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:30:27,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:30:27,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:30:27,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56349330] [2022-03-18 16:30:27,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:27,016 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:30:27,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:27,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:30:27,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:30:27,016 INFO L87 Difference]: Start difference. First operand 420 states and 635 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:29,606 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:29,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:29,986 INFO L93 Difference]: Finished difference Result 860 states and 1303 transitions. [2022-03-18 16:30:29,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:30:29,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 126 [2022-03-18 16:30:29,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:29,988 INFO L225 Difference]: With dead ends: 860 [2022-03-18 16:30:29,988 INFO L226 Difference]: Without dead ends: 466 [2022-03-18 16:30:29,989 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:30:29,989 INFO L912 BasicCegarLoop]: 206 mSDtfsCounter, 85 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:29,989 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 525 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-18 16:30:29,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2022-03-18 16:30:29,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 420. [2022-03-18 16:30:29,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 415 states have (on average 1.5180722891566265) internal successors, (630), 415 states have internal predecessors, (630), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:29,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 634 transitions. [2022-03-18 16:30:29,995 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 634 transitions. Word has length 126 [2022-03-18 16:30:29,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:29,995 INFO L478 AbstractCegarLoop]: Abstraction has 420 states and 634 transitions. [2022-03-18 16:30:29,995 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:29,995 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 634 transitions. [2022-03-18 16:30:29,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-03-18 16:30:29,996 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:29,996 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:30:29,996 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-18 16:30:29,996 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:29,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:29,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1788182569, now seen corresponding path program 1 times [2022-03-18 16:30:29,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:29,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947784684] [2022-03-18 16:30:29,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:29,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:30,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:30,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:30,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:30,085 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-03-18 16:30:30,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:30,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947784684] [2022-03-18 16:30:30,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947784684] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:30:30,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:30:30,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:30:30,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439210616] [2022-03-18 16:30:30,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:30,086 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:30:30,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:30,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:30:30,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:30:30,086 INFO L87 Difference]: Start difference. First operand 420 states and 634 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:33,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:34,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:34,230 INFO L93 Difference]: Finished difference Result 836 states and 1268 transitions. [2022-03-18 16:30:34,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:30:34,231 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 126 [2022-03-18 16:30:34,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:34,232 INFO L225 Difference]: With dead ends: 836 [2022-03-18 16:30:34,232 INFO L226 Difference]: Without dead ends: 442 [2022-03-18 16:30:34,233 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:30:34,233 INFO L912 BasicCegarLoop]: 245 mSDtfsCounter, 46 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:34,233 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 603 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-03-18 16:30:34,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2022-03-18 16:30:34,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 420. [2022-03-18 16:30:34,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 415 states have (on average 1.5156626506024096) internal successors, (629), 415 states have internal predecessors, (629), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:34,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 633 transitions. [2022-03-18 16:30:34,239 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 633 transitions. Word has length 126 [2022-03-18 16:30:34,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:34,239 INFO L478 AbstractCegarLoop]: Abstraction has 420 states and 633 transitions. [2022-03-18 16:30:34,239 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:34,239 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 633 transitions. [2022-03-18 16:30:34,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-03-18 16:30:34,240 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:34,240 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:30:34,240 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-18 16:30:34,240 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:34,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:34,240 INFO L85 PathProgramCache]: Analyzing trace with hash 46620656, now seen corresponding path program 1 times [2022-03-18 16:30:34,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:34,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204669542] [2022-03-18 16:30:34,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:34,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:34,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:34,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:34,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:34,343 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-03-18 16:30:34,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:34,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204669542] [2022-03-18 16:30:34,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204669542] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:30:34,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:30:34,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:30:34,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157454357] [2022-03-18 16:30:34,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:34,344 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:30:34,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:34,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:30:34,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:30:34,345 INFO L87 Difference]: Start difference. First operand 420 states and 633 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:36,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:37,447 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:38,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:38,206 INFO L93 Difference]: Finished difference Result 889 states and 1341 transitions. [2022-03-18 16:30:38,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:30:38,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 128 [2022-03-18 16:30:38,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:38,208 INFO L225 Difference]: With dead ends: 889 [2022-03-18 16:30:38,208 INFO L226 Difference]: Without dead ends: 495 [2022-03-18 16:30:38,209 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:30:38,209 INFO L912 BasicCegarLoop]: 119 mSDtfsCounter, 137 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:38,209 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 346 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-03-18 16:30:38,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2022-03-18 16:30:38,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 420. [2022-03-18 16:30:38,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 415 states have (on average 1.4963855421686747) internal successors, (621), 415 states have internal predecessors, (621), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:38,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 625 transitions. [2022-03-18 16:30:38,215 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 625 transitions. Word has length 128 [2022-03-18 16:30:38,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:38,215 INFO L478 AbstractCegarLoop]: Abstraction has 420 states and 625 transitions. [2022-03-18 16:30:38,215 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:38,215 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 625 transitions. [2022-03-18 16:30:38,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-03-18 16:30:38,216 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:38,216 INFO L500 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:30:38,216 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-18 16:30:38,216 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:38,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:38,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1085696608, now seen corresponding path program 1 times [2022-03-18 16:30:38,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:38,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996445910] [2022-03-18 16:30:38,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:38,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:38,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:38,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:38,302 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 16:30:38,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:38,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996445910] [2022-03-18 16:30:38,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996445910] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:30:38,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:30:38,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:30:38,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998679794] [2022-03-18 16:30:38,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:38,303 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:30:38,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:38,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:30:38,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:30:38,303 INFO L87 Difference]: Start difference. First operand 420 states and 625 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:40,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:40,398 INFO L93 Difference]: Finished difference Result 929 states and 1386 transitions. [2022-03-18 16:30:40,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:30:40,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 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 130 [2022-03-18 16:30:40,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:40,400 INFO L225 Difference]: With dead ends: 929 [2022-03-18 16:30:40,400 INFO L226 Difference]: Without dead ends: 535 [2022-03-18 16:30:40,401 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:30:40,401 INFO L912 BasicCegarLoop]: 119 mSDtfsCounter, 107 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:40,401 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 347 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-18 16:30:40,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-03-18 16:30:40,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 463. [2022-03-18 16:30:40,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 458 states have (on average 1.5) internal successors, (687), 458 states have internal predecessors, (687), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:40,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 691 transitions. [2022-03-18 16:30:40,408 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 691 transitions. Word has length 130 [2022-03-18 16:30:40,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:40,408 INFO L478 AbstractCegarLoop]: Abstraction has 463 states and 691 transitions. [2022-03-18 16:30:40,408 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:40,408 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 691 transitions. [2022-03-18 16:30:40,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-18 16:30:40,409 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:40,409 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:30:40,409 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-18 16:30:40,409 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:40,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:40,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1183688361, now seen corresponding path program 1 times [2022-03-18 16:30:40,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:40,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647169134] [2022-03-18 16:30:40,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:40,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:40,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:40,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:40,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:40,500 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-18 16:30:40,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:40,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647169134] [2022-03-18 16:30:40,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647169134] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:30:40,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:30:40,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:30:40,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475366091] [2022-03-18 16:30:40,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:40,501 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:30:40,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:40,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:30:40,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:30:40,501 INFO L87 Difference]: Start difference. First operand 463 states and 691 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:43,196 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:43,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:43,984 INFO L93 Difference]: Finished difference Result 936 states and 1401 transitions. [2022-03-18 16:30:43,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:30:43,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 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 131 [2022-03-18 16:30:43,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:43,986 INFO L225 Difference]: With dead ends: 936 [2022-03-18 16:30:43,986 INFO L226 Difference]: Without dead ends: 499 [2022-03-18 16:30:43,986 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:30:43,986 INFO L912 BasicCegarLoop]: 207 mSDtfsCounter, 64 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:43,987 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 529 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-18 16:30:43,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2022-03-18 16:30:43,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 463. [2022-03-18 16:30:43,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 458 states have (on average 1.497816593886463) internal successors, (686), 458 states have internal predecessors, (686), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:43,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 690 transitions. [2022-03-18 16:30:43,993 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 690 transitions. Word has length 131 [2022-03-18 16:30:43,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:43,993 INFO L478 AbstractCegarLoop]: Abstraction has 463 states and 690 transitions. [2022-03-18 16:30:43,993 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:43,993 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 690 transitions. [2022-03-18 16:30:43,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-18 16:30:43,994 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:43,994 INFO L500 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:30:43,994 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-18 16:30:43,994 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:43,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:43,994 INFO L85 PathProgramCache]: Analyzing trace with hash -22008148, now seen corresponding path program 1 times [2022-03-18 16:30:43,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:43,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747034962] [2022-03-18 16:30:43,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:43,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:44,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:44,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:44,081 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 16:30:44,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:44,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747034962] [2022-03-18 16:30:44,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747034962] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:30:44,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:30:44,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:30:44,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682637831] [2022-03-18 16:30:44,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:44,082 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:30:44,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:44,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:30:44,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:30:44,083 INFO L87 Difference]: Start difference. First operand 463 states and 690 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:46,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:46,396 INFO L93 Difference]: Finished difference Result 975 states and 1455 transitions. [2022-03-18 16:30:46,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:30:46,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-18 16:30:46,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:46,398 INFO L225 Difference]: With dead ends: 975 [2022-03-18 16:30:46,398 INFO L226 Difference]: Without dead ends: 536 [2022-03-18 16:30:46,400 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:30:46,400 INFO L912 BasicCegarLoop]: 126 mSDtfsCounter, 108 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:46,400 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 360 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:30:46,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2022-03-18 16:30:46,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 465. [2022-03-18 16:30:46,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 460 states have (on average 1.4978260869565216) internal successors, (689), 460 states have internal predecessors, (689), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:46,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 693 transitions. [2022-03-18 16:30:46,409 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 693 transitions. Word has length 131 [2022-03-18 16:30:46,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:46,409 INFO L478 AbstractCegarLoop]: Abstraction has 465 states and 693 transitions. [2022-03-18 16:30:46,409 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:46,409 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 693 transitions. [2022-03-18 16:30:46,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-18 16:30:46,410 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:46,410 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:30:46,410 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-18 16:30:46,410 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:46,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:46,410 INFO L85 PathProgramCache]: Analyzing trace with hash 141167833, now seen corresponding path program 1 times [2022-03-18 16:30:46,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:46,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418651630] [2022-03-18 16:30:46,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:46,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:46,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:46,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:46,520 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-03-18 16:30:46,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:46,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418651630] [2022-03-18 16:30:46,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418651630] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:30:46,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:30:46,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:30:46,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651963473] [2022-03-18 16:30:46,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:46,520 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:30:46,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:46,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:30:46,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:30:46,521 INFO L87 Difference]: Start difference. First operand 465 states and 693 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 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) [2022-03-18 16:30:48,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:48,079 INFO L93 Difference]: Finished difference Result 1293 states and 1945 transitions. [2022-03-18 16:30:48,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:30:48,079 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 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 131 [2022-03-18 16:30:48,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:48,081 INFO L225 Difference]: With dead ends: 1293 [2022-03-18 16:30:48,081 INFO L226 Difference]: Without dead ends: 854 [2022-03-18 16:30:48,082 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:30:48,082 INFO L912 BasicCegarLoop]: 247 mSDtfsCounter, 134 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:48,082 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 441 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-18 16:30:48,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2022-03-18 16:30:48,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 854. [2022-03-18 16:30:48,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 849 states have (on average 1.4958775029446407) internal successors, (1270), 849 states have internal predecessors, (1270), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:48,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1274 transitions. [2022-03-18 16:30:48,093 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1274 transitions. Word has length 131 [2022-03-18 16:30:48,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:48,093 INFO L478 AbstractCegarLoop]: Abstraction has 854 states and 1274 transitions. [2022-03-18 16:30:48,093 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 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) [2022-03-18 16:30:48,093 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1274 transitions. [2022-03-18 16:30:48,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-18 16:30:48,095 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:48,095 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:30:48,095 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-18 16:30:48,095 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:48,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:48,095 INFO L85 PathProgramCache]: Analyzing trace with hash 2017650651, now seen corresponding path program 1 times [2022-03-18 16:30:48,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:48,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902389737] [2022-03-18 16:30:48,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:48,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:48,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:48,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:48,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:48,194 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-03-18 16:30:48,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:48,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902389737] [2022-03-18 16:30:48,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902389737] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:30:48,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:30:48,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:30:48,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497789789] [2022-03-18 16:30:48,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:48,194 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:30:48,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:48,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:30:48,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:30:48,195 INFO L87 Difference]: Start difference. First operand 854 states and 1274 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:50,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:50,035 INFO L93 Difference]: Finished difference Result 1709 states and 2555 transitions. [2022-03-18 16:30:50,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:30:50,035 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-18 16:30:50,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:50,037 INFO L225 Difference]: With dead ends: 1709 [2022-03-18 16:30:50,037 INFO L226 Difference]: Without dead ends: 881 [2022-03-18 16:30:50,038 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:30:50,039 INFO L912 BasicCegarLoop]: 223 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:50,039 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 417 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-18 16:30:50,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2022-03-18 16:30:50,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 881. [2022-03-18 16:30:50,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 876 states have (on average 1.4897260273972603) internal successors, (1305), 876 states have internal predecessors, (1305), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:50,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1309 transitions. [2022-03-18 16:30:50,050 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1309 transitions. Word has length 131 [2022-03-18 16:30:50,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:50,050 INFO L478 AbstractCegarLoop]: Abstraction has 881 states and 1309 transitions. [2022-03-18 16:30:50,050 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:50,050 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1309 transitions. [2022-03-18 16:30:50,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-18 16:30:50,052 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:50,052 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:30:50,052 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-18 16:30:50,052 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:50,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:50,053 INFO L85 PathProgramCache]: Analyzing trace with hash 2136092125, now seen corresponding path program 1 times [2022-03-18 16:30:50,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:50,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692285104] [2022-03-18 16:30:50,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:50,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:50,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:50,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:50,137 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-03-18 16:30:50,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:50,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692285104] [2022-03-18 16:30:50,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692285104] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:30:50,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:30:50,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:30:50,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382768127] [2022-03-18 16:30:50,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:50,138 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:30:50,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:50,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:30:50,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:30:50,138 INFO L87 Difference]: Start difference. First operand 881 states and 1309 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:51,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:52,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:52,120 INFO L93 Difference]: Finished difference Result 1738 states and 2591 transitions. [2022-03-18 16:30:52,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:30:52,120 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-18 16:30:52,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:52,123 INFO L225 Difference]: With dead ends: 1738 [2022-03-18 16:30:52,123 INFO L226 Difference]: Without dead ends: 883 [2022-03-18 16:30:52,124 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:30:52,126 INFO L912 BasicCegarLoop]: 211 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:52,126 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 396 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-18 16:30:52,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2022-03-18 16:30:52,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883. [2022-03-18 16:30:52,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 878 states have (on average 1.4886104783599088) internal successors, (1307), 878 states have internal predecessors, (1307), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:52,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1311 transitions. [2022-03-18 16:30:52,170 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1311 transitions. Word has length 131 [2022-03-18 16:30:52,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:52,170 INFO L478 AbstractCegarLoop]: Abstraction has 883 states and 1311 transitions. [2022-03-18 16:30:52,170 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:52,170 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1311 transitions. [2022-03-18 16:30:52,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-18 16:30:52,172 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:52,172 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:30:52,172 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-18 16:30:52,172 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:52,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:52,172 INFO L85 PathProgramCache]: Analyzing trace with hash -997450557, now seen corresponding path program 1 times [2022-03-18 16:30:52,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:52,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797104275] [2022-03-18 16:30:52,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:52,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:52,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:52,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:52,266 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-18 16:30:52,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:52,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797104275] [2022-03-18 16:30:52,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797104275] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:30:52,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:30:52,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:30:52,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655720131] [2022-03-18 16:30:52,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:52,268 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:30:52,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:52,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:30:52,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:30:52,269 INFO L87 Difference]: Start difference. First operand 883 states and 1311 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:53,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:53,654 INFO L93 Difference]: Finished difference Result 2177 states and 3253 transitions. [2022-03-18 16:30:53,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:30:53,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-18 16:30:53,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:53,658 INFO L225 Difference]: With dead ends: 2177 [2022-03-18 16:30:53,658 INFO L226 Difference]: Without dead ends: 1322 [2022-03-18 16:30:53,659 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:30:53,660 INFO L912 BasicCegarLoop]: 195 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:53,665 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 380 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-18 16:30:53,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states. [2022-03-18 16:30:53,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1320. [2022-03-18 16:30:53,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1315 states have (on average 1.4958174904942967) internal successors, (1967), 1315 states have internal predecessors, (1967), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:53,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 1971 transitions. [2022-03-18 16:30:53,683 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 1971 transitions. Word has length 133 [2022-03-18 16:30:53,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:53,683 INFO L478 AbstractCegarLoop]: Abstraction has 1320 states and 1971 transitions. [2022-03-18 16:30:53,683 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:53,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 1971 transitions. [2022-03-18 16:30:53,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-18 16:30:53,685 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:53,685 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:30:53,685 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-18 16:30:53,685 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:53,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:53,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1473303164, now seen corresponding path program 1 times [2022-03-18 16:30:53,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:53,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039040028] [2022-03-18 16:30:53,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:53,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:53,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:53,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:53,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:53,779 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-18 16:30:53,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:53,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039040028] [2022-03-18 16:30:53,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039040028] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:30:53,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:30:53,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:30:53,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475695158] [2022-03-18 16:30:53,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:53,781 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:30:53,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:53,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:30:53,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:30:53,782 INFO L87 Difference]: Start difference. First operand 1320 states and 1971 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:55,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:55,710 INFO L93 Difference]: Finished difference Result 1761 states and 2635 transitions. [2022-03-18 16:30:55,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:30:55,710 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-03-18 16:30:55,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:55,714 INFO L225 Difference]: With dead ends: 1761 [2022-03-18 16:30:55,715 INFO L226 Difference]: Without dead ends: 1759 [2022-03-18 16:30:55,715 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:30:55,716 INFO L912 BasicCegarLoop]: 193 mSDtfsCounter, 165 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:55,716 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 378 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-18 16:30:55,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2022-03-18 16:30:55,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 1757. [2022-03-18 16:30:55,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1757 states, 1752 states have (on average 1.5) internal successors, (2628), 1752 states have internal predecessors, (2628), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:55,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1757 states to 1757 states and 2632 transitions. [2022-03-18 16:30:55,740 INFO L78 Accepts]: Start accepts. Automaton has 1757 states and 2632 transitions. Word has length 134 [2022-03-18 16:30:55,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:55,741 INFO L478 AbstractCegarLoop]: Abstraction has 1757 states and 2632 transitions. [2022-03-18 16:30:55,741 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:55,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1757 states and 2632 transitions. [2022-03-18 16:30:55,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-03-18 16:30:55,742 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:55,742 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:30:55,742 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-18 16:30:55,742 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:55,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:55,743 INFO L85 PathProgramCache]: Analyzing trace with hash -924650012, now seen corresponding path program 1 times [2022-03-18 16:30:55,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:55,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996198155] [2022-03-18 16:30:55,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:55,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:55,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:55,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:55,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:55,840 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-18 16:30:55,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:55,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996198155] [2022-03-18 16:30:55,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996198155] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:30:55,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:30:55,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:30:55,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627349621] [2022-03-18 16:30:55,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:55,840 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:30:55,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:55,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:30:55,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:30:55,841 INFO L87 Difference]: Start difference. First operand 1757 states and 2632 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:58,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:30:59,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:30:59,392 INFO L93 Difference]: Finished difference Result 4073 states and 6093 transitions. [2022-03-18 16:30:59,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:30:59,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 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 140 [2022-03-18 16:30:59,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:30:59,397 INFO L225 Difference]: With dead ends: 4073 [2022-03-18 16:30:59,397 INFO L226 Difference]: Without dead ends: 2344 [2022-03-18 16:30:59,399 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:30:59,400 INFO L912 BasicCegarLoop]: 134 mSDtfsCounter, 116 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-18 16:30:59,400 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 376 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-18 16:30:59,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2344 states. [2022-03-18 16:30:59,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2344 to 1993. [2022-03-18 16:30:59,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1993 states, 1988 states have (on average 1.4974849094567404) internal successors, (2977), 1988 states have internal predecessors, (2977), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:59,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1993 states to 1993 states and 2981 transitions. [2022-03-18 16:30:59,428 INFO L78 Accepts]: Start accepts. Automaton has 1993 states and 2981 transitions. Word has length 140 [2022-03-18 16:30:59,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:30:59,428 INFO L478 AbstractCegarLoop]: Abstraction has 1993 states and 2981 transitions. [2022-03-18 16:30:59,429 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:30:59,429 INFO L276 IsEmpty]: Start isEmpty. Operand 1993 states and 2981 transitions. [2022-03-18 16:30:59,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-03-18 16:30:59,430 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:30:59,430 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:30:59,431 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-18 16:30:59,431 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:30:59,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:30:59,431 INFO L85 PathProgramCache]: Analyzing trace with hash -516884985, now seen corresponding path program 1 times [2022-03-18 16:30:59,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:30:59,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799217559] [2022-03-18 16:30:59,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:30:59,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:30:59,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:59,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:30:59,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:30:59,536 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-03-18 16:30:59,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:30:59,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799217559] [2022-03-18 16:30:59,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799217559] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:30:59,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:30:59,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:30:59,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261575121] [2022-03-18 16:30:59,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:30:59,537 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:30:59,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:30:59,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:30:59,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:30:59,537 INFO L87 Difference]: Start difference. First operand 1993 states and 2981 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:01,472 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:31:03,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:31:03,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:31:03,873 INFO L93 Difference]: Finished difference Result 4054 states and 6059 transitions. [2022-03-18 16:31:03,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:31:03,874 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 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 167 [2022-03-18 16:31:03,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:31:03,879 INFO L225 Difference]: With dead ends: 4054 [2022-03-18 16:31:03,879 INFO L226 Difference]: Without dead ends: 2089 [2022-03-18 16:31:03,881 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:31:03,882 INFO L912 BasicCegarLoop]: 227 mSDtfsCounter, 38 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:31:03,883 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 568 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-18 16:31:03,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2022-03-18 16:31:03,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 1993. [2022-03-18 16:31:03,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1993 states, 1988 states have (on average 1.4954728370221329) internal successors, (2973), 1988 states have internal predecessors, (2973), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:03,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1993 states to 1993 states and 2977 transitions. [2022-03-18 16:31:03,914 INFO L78 Accepts]: Start accepts. Automaton has 1993 states and 2977 transitions. Word has length 167 [2022-03-18 16:31:03,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:31:03,915 INFO L478 AbstractCegarLoop]: Abstraction has 1993 states and 2977 transitions. [2022-03-18 16:31:03,915 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:03,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1993 states and 2977 transitions. [2022-03-18 16:31:03,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-03-18 16:31:03,917 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:31:03,917 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:31:03,917 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-18 16:31:03,917 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:31:03,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:31:03,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1391450317, now seen corresponding path program 1 times [2022-03-18 16:31:03,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:31:03,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097075136] [2022-03-18 16:31:03,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:31:03,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:31:03,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:04,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:31:04,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:04,026 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-03-18 16:31:04,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:31:04,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097075136] [2022-03-18 16:31:04,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097075136] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:31:04,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:31:04,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-18 16:31:04,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113919926] [2022-03-18 16:31:04,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:31:04,026 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-18 16:31:04,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:31:04,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-18 16:31:04,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:31:04,027 INFO L87 Difference]: Start difference. First operand 1993 states and 2977 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:05,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:31:07,441 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:31:09,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:31:09,409 INFO L93 Difference]: Finished difference Result 3998 states and 5974 transitions. [2022-03-18 16:31:09,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-18 16:31:09,410 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 1 states have call successors, (3), 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 168 [2022-03-18 16:31:09,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:31:09,414 INFO L225 Difference]: With dead ends: 3998 [2022-03-18 16:31:09,414 INFO L226 Difference]: Without dead ends: 2033 [2022-03-18 16:31:09,416 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-18 16:31:09,417 INFO L912 BasicCegarLoop]: 117 mSDtfsCounter, 147 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:31:09,417 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 375 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-03-18 16:31:09,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2033 states. [2022-03-18 16:31:09,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2033 to 2029. [2022-03-18 16:31:09,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2029 states, 2024 states have (on average 1.490612648221344) internal successors, (3017), 2024 states have internal predecessors, (3017), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:09,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2029 states to 2029 states and 3021 transitions. [2022-03-18 16:31:09,449 INFO L78 Accepts]: Start accepts. Automaton has 2029 states and 3021 transitions. Word has length 168 [2022-03-18 16:31:09,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:31:09,449 INFO L478 AbstractCegarLoop]: Abstraction has 2029 states and 3021 transitions. [2022-03-18 16:31:09,449 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:09,450 INFO L276 IsEmpty]: Start isEmpty. Operand 2029 states and 3021 transitions. [2022-03-18 16:31:09,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-03-18 16:31:09,451 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:31:09,451 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:31:09,451 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-18 16:31:09,451 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:31:09,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:31:09,452 INFO L85 PathProgramCache]: Analyzing trace with hash 2037465434, now seen corresponding path program 1 times [2022-03-18 16:31:09,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:31:09,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755130390] [2022-03-18 16:31:09,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:31:09,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:31:09,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:09,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:31:09,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:09,541 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-03-18 16:31:09,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:31:09,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755130390] [2022-03-18 16:31:09,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755130390] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:31:09,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:31:09,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:31:09,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576779814] [2022-03-18 16:31:09,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:31:09,542 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:31:09,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:31:09,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:31:09,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:31:09,543 INFO L87 Difference]: Start difference. First operand 2029 states and 3021 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:12,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:31:13,303 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:31:13,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:31:13,755 INFO L93 Difference]: Finished difference Result 4489 states and 6699 transitions. [2022-03-18 16:31:13,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:31:13,756 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (3), 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 171 [2022-03-18 16:31:13,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:31:13,777 INFO L225 Difference]: With dead ends: 4489 [2022-03-18 16:31:13,777 INFO L226 Difference]: Without dead ends: 2488 [2022-03-18 16:31:13,779 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:31:13,779 INFO L912 BasicCegarLoop]: 381 mSDtfsCounter, 143 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:31:13,779 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 575 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-18 16:31:13,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2488 states. [2022-03-18 16:31:13,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2488 to 2488. [2022-03-18 16:31:13,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2488 states, 2483 states have (on average 1.4893274265002014) internal successors, (3698), 2483 states have internal predecessors, (3698), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:13,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 3702 transitions. [2022-03-18 16:31:13,811 INFO L78 Accepts]: Start accepts. Automaton has 2488 states and 3702 transitions. Word has length 171 [2022-03-18 16:31:13,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:31:13,812 INFO L478 AbstractCegarLoop]: Abstraction has 2488 states and 3702 transitions. [2022-03-18 16:31:13,812 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:13,812 INFO L276 IsEmpty]: Start isEmpty. Operand 2488 states and 3702 transitions. [2022-03-18 16:31:13,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-03-18 16:31:13,814 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:31:13,814 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:31:13,814 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-18 16:31:13,814 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:31:13,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:31:13,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1833855140, now seen corresponding path program 1 times [2022-03-18 16:31:13,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:31:13,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644261242] [2022-03-18 16:31:13,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:31:13,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:31:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:13,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:31:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:13,903 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-18 16:31:13,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:31:13,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644261242] [2022-03-18 16:31:13,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644261242] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:31:13,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:31:13,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:31:13,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869755753] [2022-03-18 16:31:13,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:31:13,904 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:31:13,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:31:13,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:31:13,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:31:13,905 INFO L87 Difference]: Start difference. First operand 2488 states and 3702 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:15,773 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:31:16,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:31:16,193 INFO L93 Difference]: Finished difference Result 5417 states and 8075 transitions. [2022-03-18 16:31:16,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:31:16,193 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 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 171 [2022-03-18 16:31:16,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:31:16,199 INFO L225 Difference]: With dead ends: 5417 [2022-03-18 16:31:16,200 INFO L226 Difference]: Without dead ends: 2957 [2022-03-18 16:31:16,202 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:31:16,203 INFO L912 BasicCegarLoop]: 377 mSDtfsCounter, 139 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:31:16,203 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 571 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-18 16:31:16,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2957 states. [2022-03-18 16:31:16,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2957 to 2957. [2022-03-18 16:31:16,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2957 states, 2952 states have (on average 1.4881436314363143) internal successors, (4393), 2952 states have internal predecessors, (4393), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:16,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2957 states to 2957 states and 4397 transitions. [2022-03-18 16:31:16,259 INFO L78 Accepts]: Start accepts. Automaton has 2957 states and 4397 transitions. Word has length 171 [2022-03-18 16:31:16,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:31:16,260 INFO L478 AbstractCegarLoop]: Abstraction has 2957 states and 4397 transitions. [2022-03-18 16:31:16,260 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:16,260 INFO L276 IsEmpty]: Start isEmpty. Operand 2957 states and 4397 transitions. [2022-03-18 16:31:16,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-03-18 16:31:16,263 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:31:16,263 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:31:16,263 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-18 16:31:16,263 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:31:16,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:31:16,263 INFO L85 PathProgramCache]: Analyzing trace with hash 118844937, now seen corresponding path program 1 times [2022-03-18 16:31:16,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:31:16,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000538759] [2022-03-18 16:31:16,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:31:16,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:31:16,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:16,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:31:16,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:16,359 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-03-18 16:31:16,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:31:16,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000538759] [2022-03-18 16:31:16,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000538759] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:31:16,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:31:16,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:31:16,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387984298] [2022-03-18 16:31:16,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:31:16,361 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:31:16,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:31:16,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:31:16,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:31:16,361 INFO L87 Difference]: Start difference. First operand 2957 states and 4397 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:18,594 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:31:20,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:31:20,440 INFO L93 Difference]: Finished difference Result 6236 states and 9238 transitions. [2022-03-18 16:31:20,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:31:20,441 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 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 183 [2022-03-18 16:31:20,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:31:20,446 INFO L225 Difference]: With dead ends: 6236 [2022-03-18 16:31:20,446 INFO L226 Difference]: Without dead ends: 3307 [2022-03-18 16:31:20,449 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:31:20,449 INFO L912 BasicCegarLoop]: 139 mSDtfsCounter, 129 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-18 16:31:20,449 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 386 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 468 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-03-18 16:31:20,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3307 states. [2022-03-18 16:31:20,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3307 to 2957. [2022-03-18 16:31:20,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2957 states, 2952 states have (on average 1.4708672086720866) internal successors, (4342), 2952 states have internal predecessors, (4342), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:20,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2957 states to 2957 states and 4346 transitions. [2022-03-18 16:31:20,512 INFO L78 Accepts]: Start accepts. Automaton has 2957 states and 4346 transitions. Word has length 183 [2022-03-18 16:31:20,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:31:20,513 INFO L478 AbstractCegarLoop]: Abstraction has 2957 states and 4346 transitions. [2022-03-18 16:31:20,513 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:20,513 INFO L276 IsEmpty]: Start isEmpty. Operand 2957 states and 4346 transitions. [2022-03-18 16:31:20,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-03-18 16:31:20,516 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:31:20,516 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-03-18 16:31:20,517 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-18 16:31:20,517 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:31:20,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:31:20,517 INFO L85 PathProgramCache]: Analyzing trace with hash 937244990, now seen corresponding path program 1 times [2022-03-18 16:31:20,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:31:20,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169928441] [2022-03-18 16:31:20,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:31:20,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:31:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:20,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:31:20,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:20,615 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 252 proven. 1 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-03-18 16:31:20,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:31:20,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169928441] [2022-03-18 16:31:20,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169928441] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:31:20,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802496058] [2022-03-18 16:31:20,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:31:20,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:31:20,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:31:20,617 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 16:31:20,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-18 16:31:21,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:21,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 2 conjunts are in the unsatisfiable core [2022-03-18 16:31:21,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:31:21,583 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2022-03-18 16:31:21,583 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-18 16:31:21,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802496058] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:31:21,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-18 16:31:21,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-03-18 16:31:21,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580172413] [2022-03-18 16:31:21,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:31:21,584 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-18 16:31:21,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:31:21,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-18 16:31:21,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-18 16:31:21,585 INFO L87 Difference]: Start difference. First operand 2957 states and 4346 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:21,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:31:21,665 INFO L93 Difference]: Finished difference Result 6393 states and 9409 transitions. [2022-03-18 16:31:21,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-18 16:31:21,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 1 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 189 [2022-03-18 16:31:21,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:31:21,671 INFO L225 Difference]: With dead ends: 6393 [2022-03-18 16:31:21,671 INFO L226 Difference]: Without dead ends: 3464 [2022-03-18 16:31:21,674 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-18 16:31:21,674 INFO L912 BasicCegarLoop]: 385 mSDtfsCounter, 138 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-18 16:31:21,675 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 579 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-18 16:31:21,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3464 states. [2022-03-18 16:31:21,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3464 to 3462. [2022-03-18 16:31:21,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3462 states, 3457 states have (on average 1.4663002603413364) internal successors, (5069), 3457 states have internal predecessors, (5069), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:21,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3462 states to 3462 states and 5073 transitions. [2022-03-18 16:31:21,723 INFO L78 Accepts]: Start accepts. Automaton has 3462 states and 5073 transitions. Word has length 189 [2022-03-18 16:31:21,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:31:21,724 INFO L478 AbstractCegarLoop]: Abstraction has 3462 states and 5073 transitions. [2022-03-18 16:31:21,724 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:21,724 INFO L276 IsEmpty]: Start isEmpty. Operand 3462 states and 5073 transitions. [2022-03-18 16:31:21,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-03-18 16:31:21,727 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:31:21,727 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:31:21,751 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-18 16:31:21,943 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2022-03-18 16:31:21,944 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:31:21,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:31:21,944 INFO L85 PathProgramCache]: Analyzing trace with hash -2070762988, now seen corresponding path program 1 times [2022-03-18 16:31:21,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:31:21,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017373885] [2022-03-18 16:31:21,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:31:21,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:31:22,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:22,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:31:22,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:22,058 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 254 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-03-18 16:31:22,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:31:22,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017373885] [2022-03-18 16:31:22,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017373885] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:31:22,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:31:22,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:31:22,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300302979] [2022-03-18 16:31:22,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:31:22,059 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:31:22,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:31:22,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:31:22,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:31:22,059 INFO L87 Difference]: Start difference. First operand 3462 states and 5073 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:24,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:31:25,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:31:25,134 INFO L93 Difference]: Finished difference Result 7050 states and 10327 transitions. [2022-03-18 16:31:25,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:31:25,134 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 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 206 [2022-03-18 16:31:25,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:31:25,139 INFO L225 Difference]: With dead ends: 7050 [2022-03-18 16:31:25,139 INFO L226 Difference]: Without dead ends: 3616 [2022-03-18 16:31:25,142 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:31:25,142 INFO L912 BasicCegarLoop]: 230 mSDtfsCounter, 40 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-18 16:31:25,142 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 574 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-18 16:31:25,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3616 states. [2022-03-18 16:31:25,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3616 to 3462. [2022-03-18 16:31:25,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3462 states, 3457 states have (on average 1.4642753832803008) internal successors, (5062), 3457 states have internal predecessors, (5062), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:25,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3462 states to 3462 states and 5066 transitions. [2022-03-18 16:31:25,191 INFO L78 Accepts]: Start accepts. Automaton has 3462 states and 5066 transitions. Word has length 206 [2022-03-18 16:31:25,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:31:25,191 INFO L478 AbstractCegarLoop]: Abstraction has 3462 states and 5066 transitions. [2022-03-18 16:31:25,191 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:25,191 INFO L276 IsEmpty]: Start isEmpty. Operand 3462 states and 5066 transitions. [2022-03-18 16:31:25,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-03-18 16:31:25,195 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:31:25,195 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:31:25,195 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-18 16:31:25,195 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:31:25,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:31:25,196 INFO L85 PathProgramCache]: Analyzing trace with hash 113458123, now seen corresponding path program 1 times [2022-03-18 16:31:25,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:31:25,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938285617] [2022-03-18 16:31:25,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:31:25,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:31:25,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:25,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:31:25,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:25,295 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-03-18 16:31:25,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:31:25,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938285617] [2022-03-18 16:31:25,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938285617] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:31:25,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:31:25,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:31:25,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166148376] [2022-03-18 16:31:25,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:31:25,296 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:31:25,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:31:25,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:31:25,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:31:25,296 INFO L87 Difference]: Start difference. First operand 3462 states and 5066 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:27,801 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:31:28,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:31:28,447 INFO L93 Difference]: Finished difference Result 7050 states and 10313 transitions. [2022-03-18 16:31:28,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:31:28,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 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 228 [2022-03-18 16:31:28,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:31:28,455 INFO L225 Difference]: With dead ends: 7050 [2022-03-18 16:31:28,455 INFO L226 Difference]: Without dead ends: 3616 [2022-03-18 16:31:28,459 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:31:28,459 INFO L912 BasicCegarLoop]: 230 mSDtfsCounter, 45 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-18 16:31:28,459 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 573 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-18 16:31:28,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3616 states. [2022-03-18 16:31:28,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3616 to 3462. [2022-03-18 16:31:28,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3462 states, 3457 states have (on average 1.4622505062192652) internal successors, (5055), 3457 states have internal predecessors, (5055), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:28,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3462 states to 3462 states and 5059 transitions. [2022-03-18 16:31:28,510 INFO L78 Accepts]: Start accepts. Automaton has 3462 states and 5059 transitions. Word has length 228 [2022-03-18 16:31:28,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:31:28,511 INFO L478 AbstractCegarLoop]: Abstraction has 3462 states and 5059 transitions. [2022-03-18 16:31:28,511 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:28,511 INFO L276 IsEmpty]: Start isEmpty. Operand 3462 states and 5059 transitions. [2022-03-18 16:31:28,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-03-18 16:31:28,515 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:31:28,515 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:31:28,515 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-18 16:31:28,515 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:31:28,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:31:28,516 INFO L85 PathProgramCache]: Analyzing trace with hash 795005460, now seen corresponding path program 1 times [2022-03-18 16:31:28,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:31:28,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436256461] [2022-03-18 16:31:28,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:31:28,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:31:28,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:28,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:31:28,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:28,636 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 332 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-03-18 16:31:28,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:31:28,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436256461] [2022-03-18 16:31:28,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436256461] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:31:28,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:31:28,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:31:28,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558988325] [2022-03-18 16:31:28,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:31:28,637 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:31:28,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:31:28,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:31:28,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:31:28,637 INFO L87 Difference]: Start difference. First operand 3462 states and 5059 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:31,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:31:31,137 INFO L93 Difference]: Finished difference Result 7305 states and 10630 transitions. [2022-03-18 16:31:31,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:31:31,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 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 229 [2022-03-18 16:31:31,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:31:31,143 INFO L225 Difference]: With dead ends: 7305 [2022-03-18 16:31:31,143 INFO L226 Difference]: Without dead ends: 3871 [2022-03-18 16:31:31,147 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:31:31,147 INFO L912 BasicCegarLoop]: 137 mSDtfsCounter, 118 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:31:31,147 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 382 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:31:31,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3871 states. [2022-03-18 16:31:31,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3871 to 3462. [2022-03-18 16:31:31,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3462 states, 3457 states have (on average 1.442869540063639) internal successors, (4988), 3457 states have internal predecessors, (4988), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:31,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3462 states to 3462 states and 4992 transitions. [2022-03-18 16:31:31,200 INFO L78 Accepts]: Start accepts. Automaton has 3462 states and 4992 transitions. Word has length 229 [2022-03-18 16:31:31,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:31:31,200 INFO L478 AbstractCegarLoop]: Abstraction has 3462 states and 4992 transitions. [2022-03-18 16:31:31,200 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:31,200 INFO L276 IsEmpty]: Start isEmpty. Operand 3462 states and 4992 transitions. [2022-03-18 16:31:31,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-18 16:31:31,204 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:31:31,204 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:31:31,205 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-18 16:31:31,205 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:31:31,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:31:31,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1390227232, now seen corresponding path program 1 times [2022-03-18 16:31:31,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:31:31,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855306892] [2022-03-18 16:31:31,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:31:31,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:31:31,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:31,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:31:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:31,318 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-03-18 16:31:31,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:31:31,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855306892] [2022-03-18 16:31:31,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855306892] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:31:31,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:31:31,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:31:31,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906571954] [2022-03-18 16:31:31,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:31:31,319 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:31:31,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:31:31,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:31:31,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:31:31,319 INFO L87 Difference]: Start difference. First operand 3462 states and 4992 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:34,899 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:31:35,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:31:35,327 INFO L93 Difference]: Finished difference Result 7218 states and 10389 transitions. [2022-03-18 16:31:35,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:31:35,328 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 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 231 [2022-03-18 16:31:35,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:31:35,339 INFO L225 Difference]: With dead ends: 7218 [2022-03-18 16:31:35,339 INFO L226 Difference]: Without dead ends: 3784 [2022-03-18 16:31:35,344 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:31:35,345 INFO L912 BasicCegarLoop]: 240 mSDtfsCounter, 31 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-18 16:31:35,345 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 593 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 458 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-03-18 16:31:35,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3784 states. [2022-03-18 16:31:35,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3784 to 3672. [2022-03-18 16:31:35,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3672 states, 3667 states have (on average 1.4404145077720207) internal successors, (5282), 3667 states have internal predecessors, (5282), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:35,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3672 states to 3672 states and 5286 transitions. [2022-03-18 16:31:35,401 INFO L78 Accepts]: Start accepts. Automaton has 3672 states and 5286 transitions. Word has length 231 [2022-03-18 16:31:35,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:31:35,401 INFO L478 AbstractCegarLoop]: Abstraction has 3672 states and 5286 transitions. [2022-03-18 16:31:35,401 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:35,401 INFO L276 IsEmpty]: Start isEmpty. Operand 3672 states and 5286 transitions. [2022-03-18 16:31:35,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-03-18 16:31:35,405 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:31:35,405 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:31:35,405 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-18 16:31:35,406 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:31:35,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:31:35,406 INFO L85 PathProgramCache]: Analyzing trace with hash -338469347, now seen corresponding path program 1 times [2022-03-18 16:31:35,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:31:35,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569099756] [2022-03-18 16:31:35,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:31:35,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:31:35,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:35,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:31:35,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:35,578 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-03-18 16:31:35,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:31:35,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569099756] [2022-03-18 16:31:35,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569099756] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:31:35,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:31:35,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:31:35,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538503838] [2022-03-18 16:31:35,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:31:35,579 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:31:35,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:31:35,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:31:35,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:31:35,580 INFO L87 Difference]: Start difference. First operand 3672 states and 5286 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:37,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:31:37,318 INFO L93 Difference]: Finished difference Result 7439 states and 10683 transitions. [2022-03-18 16:31:37,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:31:37,318 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 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 237 [2022-03-18 16:31:37,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:31:37,332 INFO L225 Difference]: With dead ends: 7439 [2022-03-18 16:31:37,332 INFO L226 Difference]: Without dead ends: 3795 [2022-03-18 16:31:37,337 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:31:37,337 INFO L912 BasicCegarLoop]: 250 mSDtfsCounter, 60 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-18 16:31:37,337 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 612 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-18 16:31:37,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3795 states. [2022-03-18 16:31:37,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3795 to 3672. [2022-03-18 16:31:37,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3672 states, 3667 states have (on average 1.4390509953640578) internal successors, (5277), 3667 states have internal predecessors, (5277), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:37,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3672 states to 3672 states and 5281 transitions. [2022-03-18 16:31:37,396 INFO L78 Accepts]: Start accepts. Automaton has 3672 states and 5281 transitions. Word has length 237 [2022-03-18 16:31:37,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:31:37,396 INFO L478 AbstractCegarLoop]: Abstraction has 3672 states and 5281 transitions. [2022-03-18 16:31:37,396 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:37,396 INFO L276 IsEmpty]: Start isEmpty. Operand 3672 states and 5281 transitions. [2022-03-18 16:31:37,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-03-18 16:31:37,401 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:31:37,401 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2022-03-18 16:31:37,401 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-18 16:31:37,403 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:31:37,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:31:37,403 INFO L85 PathProgramCache]: Analyzing trace with hash 379316511, now seen corresponding path program 1 times [2022-03-18 16:31:37,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:31:37,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838203701] [2022-03-18 16:31:37,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:31:37,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:31:37,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:37,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:31:37,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:37,799 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 370 proven. 72 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-03-18 16:31:37,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:31:37,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838203701] [2022-03-18 16:31:37,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838203701] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:31:37,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891986086] [2022-03-18 16:31:37,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:31:37,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:31:37,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:31:37,803 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 16:31:37,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-18 16:31:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:31:38,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 1436 conjuncts, 48 conjunts are in the unsatisfiable core [2022-03-18 16:31:38,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:31:38,687 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:31:38,688 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 16:31:38,734 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 16:31:38,734 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:31:38,807 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-18 16:31:38,877 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-18 16:31:38,880 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-18 16:31:38,901 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-18 16:31:38,904 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-18 16:31:38,919 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-18 16:31:38,919 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-03-18 16:31:38,988 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-03-18 16:31:38,989 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-03-18 16:31:39,174 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 11 [2022-03-18 16:31:39,282 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 363 proven. 68 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-03-18 16:31:39,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 16:31:39,401 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-03-18 16:31:39,403 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-03-18 16:31:41,220 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_14062 Int) (v_arrayElimCell_10 Int) (v_arrayElimCell_11 Int)) (not (= (select (select (store |c_#memory_int| v_arrayElimCell_10 (store (select |c_#memory_int| v_arrayElimCell_10) (+ 844 v_arrayElimCell_11) v_ArrVal_14062)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)) 8640))) is different from false [2022-03-18 16:31:41,346 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2022-03-18 16:31:41,484 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 342 proven. 69 refuted. 0 times theorem prover too weak. 103 trivial. 1 not checked. [2022-03-18 16:31:41,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891986086] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-18 16:31:41,484 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-18 16:31:41,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 8] total 23 [2022-03-18 16:31:41,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272310246] [2022-03-18 16:31:41,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-18 16:31:41,485 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-18 16:31:41,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:31:41,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-18 16:31:41,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=398, Unknown=1, NotChecked=40, Total=506 [2022-03-18 16:31:41,485 INFO L87 Difference]: Start difference. First operand 3672 states and 5281 transitions. Second operand has 23 states, 23 states have (on average 13.26086956521739) internal successors, (305), 22 states have internal predecessors, (305), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:31:43,302 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:31:45,327 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:31:46,846 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:31:49,208 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:31:50,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:31:52,642 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:31:54,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:31:56,684 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:31:58,229 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:31:59,245 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:32:04,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:32:04,963 INFO L93 Difference]: Finished difference Result 16273 states and 23036 transitions. [2022-03-18 16:32:04,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-03-18 16:32:04,964 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 13.26086956521739) internal successors, (305), 22 states have internal predecessors, (305), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 256 [2022-03-18 16:32:04,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:32:04,977 INFO L225 Difference]: With dead ends: 16273 [2022-03-18 16:32:04,977 INFO L226 Difference]: Without dead ends: 12629 [2022-03-18 16:32:04,983 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 630 GetRequests, 522 SyntacticMatches, 7 SemanticMatches, 101 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3623 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1395, Invalid=8910, Unknown=1, NotChecked=200, Total=10506 [2022-03-18 16:32:04,983 INFO L912 BasicCegarLoop]: 294 mSDtfsCounter, 3802 mSDsluCounter, 3321 mSDsCounter, 0 mSdLazyCounter, 3982 mSolverCounterSat, 1023 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3802 SdHoareTripleChecker+Valid, 3615 SdHoareTripleChecker+Invalid, 6173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1023 IncrementalHoareTripleChecker+Valid, 3982 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 1165 IncrementalHoareTripleChecker+Unchecked, 21.6s IncrementalHoareTripleChecker+Time [2022-03-18 16:32:04,983 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [3802 Valid, 3615 Invalid, 6173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1023 Valid, 3982 Invalid, 3 Unknown, 1165 Unchecked, 21.6s Time] [2022-03-18 16:32:04,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12629 states. [2022-03-18 16:32:05,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12629 to 4176. [2022-03-18 16:32:05,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4176 states, 4171 states have (on average 1.4337089426995924) internal successors, (5980), 4171 states have internal predecessors, (5980), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:32:05,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4176 states to 4176 states and 5984 transitions. [2022-03-18 16:32:05,125 INFO L78 Accepts]: Start accepts. Automaton has 4176 states and 5984 transitions. Word has length 256 [2022-03-18 16:32:05,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:32:05,126 INFO L478 AbstractCegarLoop]: Abstraction has 4176 states and 5984 transitions. [2022-03-18 16:32:05,126 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 13.26086956521739) internal successors, (305), 22 states have internal predecessors, (305), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:32:05,126 INFO L276 IsEmpty]: Start isEmpty. Operand 4176 states and 5984 transitions. [2022-03-18 16:32:05,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-03-18 16:32:05,130 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:32:05,131 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2022-03-18 16:32:05,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-18 16:32:05,339 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2022-03-18 16:32:05,339 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:32:05,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:32:05,340 INFO L85 PathProgramCache]: Analyzing trace with hash 462063695, now seen corresponding path program 1 times [2022-03-18 16:32:05,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:32:05,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403043954] [2022-03-18 16:32:05,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:32:05,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:32:05,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:32:05,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:32:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:32:05,619 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 372 proven. 72 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-03-18 16:32:05,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:32:05,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403043954] [2022-03-18 16:32:05,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403043954] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:32:05,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677137012] [2022-03-18 16:32:05,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:32:05,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:32:05,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:32:05,621 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 16:32:05,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-18 16:32:06,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:32:06,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 1439 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-18 16:32:06,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:32:06,529 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:32:06,529 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 16:32:06,564 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 16:32:06,564 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:32:06,656 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-18 16:32:06,670 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-18 16:32:06,672 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-18 16:32:06,687 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-03-18 16:32:06,688 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-03-18 16:32:06,740 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-03-18 16:32:06,740 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-03-18 16:32:06,884 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:32:06,966 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 375 proven. 48 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-03-18 16:32:06,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 16:32:07,165 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-03-18 16:32:07,168 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-03-18 16:32:07,931 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_21 Int) (v_arrayElimCell_22 Int)) (not (= 8657 (select (select (store |c_#memory_int| v_arrayElimCell_21 (store (select |c_#memory_int| v_arrayElimCell_21) (+ 844 v_arrayElimCell_22) 3)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset))))) is different from false [2022-03-18 16:32:08,038 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 380 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2022-03-18 16:32:08,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677137012] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-18 16:32:08,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-18 16:32:08,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11, 9] total 19 [2022-03-18 16:32:08,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170406101] [2022-03-18 16:32:08,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:32:08,039 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-18 16:32:08,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:32:08,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-18 16:32:08,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=252, Unknown=1, NotChecked=32, Total=342 [2022-03-18 16:32:08,039 INFO L87 Difference]: Start difference. First operand 4176 states and 5984 transitions. Second operand has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:32:11,625 WARN L833 $PredicateComparison]: unable to prove that (and (not (= 8657 (select (select |c_#memory_int| c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)))) (forall ((v_arrayElimCell_21 Int) (v_arrayElimCell_22 Int)) (not (= 8657 (select (select (store |c_#memory_int| v_arrayElimCell_21 (store (select |c_#memory_int| v_arrayElimCell_21) (+ 844 v_arrayElimCell_22) 3)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)))))) is different from false [2022-03-18 16:32:11,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:32:11,745 INFO L93 Difference]: Finished difference Result 8793 states and 12570 transitions. [2022-03-18 16:32:11,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:32:11,747 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 1 states have call successors, (3), 1 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 257 [2022-03-18 16:32:11,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:32:11,752 INFO L225 Difference]: With dead ends: 8793 [2022-03-18 16:32:11,752 INFO L226 Difference]: Without dead ends: 4603 [2022-03-18 16:32:11,756 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 530 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=64, Invalid=284, Unknown=2, NotChecked=70, Total=420 [2022-03-18 16:32:11,756 INFO L912 BasicCegarLoop]: 142 mSDtfsCounter, 133 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 255 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-18 16:32:11,756 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 603 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 310 Invalid, 0 Unknown, 255 Unchecked, 1.6s Time] [2022-03-18 16:32:11,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4603 states. [2022-03-18 16:32:11,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4603 to 4194. [2022-03-18 16:32:11,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4194 states, 4189 states have (on average 1.4311291477679637) internal successors, (5995), 4189 states have internal predecessors, (5995), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:32:11,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4194 states to 4194 states and 5999 transitions. [2022-03-18 16:32:11,847 INFO L78 Accepts]: Start accepts. Automaton has 4194 states and 5999 transitions. Word has length 257 [2022-03-18 16:32:11,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:32:11,847 INFO L478 AbstractCegarLoop]: Abstraction has 4194 states and 5999 transitions. [2022-03-18 16:32:11,847 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:32:11,848 INFO L276 IsEmpty]: Start isEmpty. Operand 4194 states and 5999 transitions. [2022-03-18 16:32:11,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-03-18 16:32:11,852 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:32:11,853 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2022-03-18 16:32:11,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-18 16:32:12,060 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:32:12,060 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:32:12,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:32:12,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1168660301, now seen corresponding path program 1 times [2022-03-18 16:32:12,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:32:12,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805888233] [2022-03-18 16:32:12,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:32:12,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:32:12,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:32:12,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:32:12,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:32:12,280 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 377 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2022-03-18 16:32:12,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:32:12,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805888233] [2022-03-18 16:32:12,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805888233] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:32:12,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:32:12,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-18 16:32:12,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124632765] [2022-03-18 16:32:12,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:32:12,281 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-18 16:32:12,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:32:12,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-18 16:32:12,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-18 16:32:12,282 INFO L87 Difference]: Start difference. First operand 4194 states and 5999 transitions. Second operand has 8 states, 8 states have (on average 19.625) internal successors, (157), 7 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:32:14,785 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:32:18,498 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:32:19,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:32:19,536 INFO L93 Difference]: Finished difference Result 9614 states and 13648 transitions. [2022-03-18 16:32:19,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-18 16:32:19,536 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.625) internal successors, (157), 7 states have internal predecessors, (157), 1 states have call successors, (3), 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 257 [2022-03-18 16:32:19,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:32:19,541 INFO L225 Difference]: With dead ends: 9614 [2022-03-18 16:32:19,541 INFO L226 Difference]: Without dead ends: 5448 [2022-03-18 16:32:19,545 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-03-18 16:32:19,545 INFO L912 BasicCegarLoop]: 296 mSDtfsCounter, 389 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 1157 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1157 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-18 16:32:19,546 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [389 Valid, 1057 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1157 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-03-18 16:32:19,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5448 states. [2022-03-18 16:32:19,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5448 to 4134. [2022-03-18 16:32:19,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4134 states, 4129 states have (on average 1.4301283603778154) internal successors, (5905), 4129 states have internal predecessors, (5905), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:32:19,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4134 states to 4134 states and 5909 transitions. [2022-03-18 16:32:19,659 INFO L78 Accepts]: Start accepts. Automaton has 4134 states and 5909 transitions. Word has length 257 [2022-03-18 16:32:19,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:32:19,659 INFO L478 AbstractCegarLoop]: Abstraction has 4134 states and 5909 transitions. [2022-03-18 16:32:19,659 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.625) internal successors, (157), 7 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:32:19,659 INFO L276 IsEmpty]: Start isEmpty. Operand 4134 states and 5909 transitions. [2022-03-18 16:32:19,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-03-18 16:32:19,664 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:32:19,664 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:32:19,664 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-18 16:32:19,664 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:32:19,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:32:19,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1444547086, now seen corresponding path program 1 times [2022-03-18 16:32:19,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:32:19,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791923089] [2022-03-18 16:32:19,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:32:19,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:32:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:32:19,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:32:19,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:32:19,778 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 471 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-03-18 16:32:19,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:32:19,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791923089] [2022-03-18 16:32:19,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791923089] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:32:19,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:32:19,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:32:19,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545597571] [2022-03-18 16:32:19,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:32:19,779 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:32:19,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:32:19,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:32:19,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:32:19,779 INFO L87 Difference]: Start difference. First operand 4134 states and 5909 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:32:22,289 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:32:24,313 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:32:26,336 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:32:26,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:32:26,868 INFO L93 Difference]: Finished difference Result 8901 states and 12701 transitions. [2022-03-18 16:32:26,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:32:26,869 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 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 266 [2022-03-18 16:32:26,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:32:26,873 INFO L225 Difference]: With dead ends: 8901 [2022-03-18 16:32:26,873 INFO L226 Difference]: Without dead ends: 4795 [2022-03-18 16:32:26,877 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:32:26,878 INFO L912 BasicCegarLoop]: 153 mSDtfsCounter, 112 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 49 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-18 16:32:26,878 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 419 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 477 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-03-18 16:32:26,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4795 states. [2022-03-18 16:32:27,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4795 to 4267. [2022-03-18 16:32:27,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4267 states, 4262 states have (on average 1.4040356640075082) internal successors, (5984), 4262 states have internal predecessors, (5984), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:32:27,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4267 states to 4267 states and 5988 transitions. [2022-03-18 16:32:27,011 INFO L78 Accepts]: Start accepts. Automaton has 4267 states and 5988 transitions. Word has length 266 [2022-03-18 16:32:27,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:32:27,012 INFO L478 AbstractCegarLoop]: Abstraction has 4267 states and 5988 transitions. [2022-03-18 16:32:27,012 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:32:27,012 INFO L276 IsEmpty]: Start isEmpty. Operand 4267 states and 5988 transitions. [2022-03-18 16:32:27,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-03-18 16:32:27,016 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:32:27,017 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:32:27,017 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-18 16:32:27,017 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:32:27,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:32:27,017 INFO L85 PathProgramCache]: Analyzing trace with hash 328792406, now seen corresponding path program 1 times [2022-03-18 16:32:27,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:32:27,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364861973] [2022-03-18 16:32:27,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:32:27,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:32:27,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:32:27,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:32:27,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:32:27,130 INFO L134 CoverageAnalysis]: Checked inductivity of 755 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-03-18 16:32:27,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:32:27,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364861973] [2022-03-18 16:32:27,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364861973] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:32:27,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:32:27,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:32:27,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449292650] [2022-03-18 16:32:27,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:32:27,131 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:32:27,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:32:27,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:32:27,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:32:27,131 INFO L87 Difference]: Start difference. First operand 4267 states and 5988 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:32:29,643 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:32:30,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:32:32,204 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:32:32,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:32:32,655 INFO L93 Difference]: Finished difference Result 8632 states and 12121 transitions. [2022-03-18 16:32:32,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:32:32,658 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 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 267 [2022-03-18 16:32:32,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:32:32,662 INFO L225 Difference]: With dead ends: 8632 [2022-03-18 16:32:32,662 INFO L226 Difference]: Without dead ends: 4393 [2022-03-18 16:32:32,665 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:32:32,666 INFO L912 BasicCegarLoop]: 224 mSDtfsCounter, 40 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:32:32,666 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 561 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-03-18 16:32:32,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4393 states. [2022-03-18 16:32:32,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4393 to 4267. [2022-03-18 16:32:32,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4267 states, 4262 states have (on average 1.4023932426091037) internal successors, (5977), 4262 states have internal predecessors, (5977), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:32:32,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4267 states to 4267 states and 5981 transitions. [2022-03-18 16:32:32,781 INFO L78 Accepts]: Start accepts. Automaton has 4267 states and 5981 transitions. Word has length 267 [2022-03-18 16:32:32,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:32:32,781 INFO L478 AbstractCegarLoop]: Abstraction has 4267 states and 5981 transitions. [2022-03-18 16:32:32,781 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:32:32,781 INFO L276 IsEmpty]: Start isEmpty. Operand 4267 states and 5981 transitions. [2022-03-18 16:32:32,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-03-18 16:32:32,785 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:32:32,786 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:32:32,786 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-18 16:32:32,786 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:32:32,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:32:32,786 INFO L85 PathProgramCache]: Analyzing trace with hash -692693107, now seen corresponding path program 1 times [2022-03-18 16:32:32,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:32:32,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196474897] [2022-03-18 16:32:32,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:32:32,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:32:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:32:32,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:32:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:32:32,901 INFO L134 CoverageAnalysis]: Checked inductivity of 763 backedges. 487 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-03-18 16:32:32,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:32:32,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196474897] [2022-03-18 16:32:32,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196474897] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:32:32,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:32:32,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:32:32,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811616571] [2022-03-18 16:32:32,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:32:32,901 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:32:32,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:32:32,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:32:32,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:32:32,902 INFO L87 Difference]: Start difference. First operand 4267 states and 5981 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:32:36,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:32:37,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:32:37,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:32:37,917 INFO L93 Difference]: Finished difference Result 9167 states and 12838 transitions. [2022-03-18 16:32:37,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:32:37,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 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 268 [2022-03-18 16:32:37,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:32:37,922 INFO L225 Difference]: With dead ends: 9167 [2022-03-18 16:32:37,922 INFO L226 Difference]: Without dead ends: 4928 [2022-03-18 16:32:37,925 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:32:37,926 INFO L912 BasicCegarLoop]: 137 mSDtfsCounter, 118 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-18 16:32:37,926 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 382 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 467 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-03-18 16:32:37,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4928 states. [2022-03-18 16:32:38,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4928 to 4414. [2022-03-18 16:32:38,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4414 states, 4409 states have (on average 1.3783170787026537) internal successors, (6077), 4409 states have internal predecessors, (6077), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:32:38,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4414 states to 4414 states and 6081 transitions. [2022-03-18 16:32:38,048 INFO L78 Accepts]: Start accepts. Automaton has 4414 states and 6081 transitions. Word has length 268 [2022-03-18 16:32:38,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:32:38,048 INFO L478 AbstractCegarLoop]: Abstraction has 4414 states and 6081 transitions. [2022-03-18 16:32:38,048 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:32:38,048 INFO L276 IsEmpty]: Start isEmpty. Operand 4414 states and 6081 transitions. [2022-03-18 16:32:38,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2022-03-18 16:32:38,052 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:32:38,052 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:32:38,052 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-18 16:32:38,052 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:32:38,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:32:38,052 INFO L85 PathProgramCache]: Analyzing trace with hash -790632810, now seen corresponding path program 1 times [2022-03-18 16:32:38,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:32:38,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184875923] [2022-03-18 16:32:38,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:32:38,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:32:38,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:32:38,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:32:38,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:32:38,221 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 516 proven. 38 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2022-03-18 16:32:38,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:32:38,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184875923] [2022-03-18 16:32:38,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184875923] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:32:38,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288287061] [2022-03-18 16:32:38,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:32:38,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:32:38,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:32:38,222 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 16:32:38,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-18 16:32:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:32:39,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 1563 conjuncts, 23 conjunts are in the unsatisfiable core [2022-03-18 16:32:39,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:32:39,209 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:32:39,209 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 16:32:39,244 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 16:32:39,244 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:32:39,307 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-18 16:32:39,307 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 16:32:39,343 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-18 16:32:39,501 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 502 proven. 48 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2022-03-18 16:32:39,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 16:32:39,547 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-03-18 16:32:39,823 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 506 proven. 10 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-03-18 16:32:39,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288287061] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-18 16:32:39,823 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-18 16:32:39,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 7] total 13 [2022-03-18 16:32:39,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084378436] [2022-03-18 16:32:39,823 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-18 16:32:39,824 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-18 16:32:39,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:32:39,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-18 16:32:39,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-03-18 16:32:39,824 INFO L87 Difference]: Start difference. First operand 4414 states and 6081 transitions. Second operand has 13 states, 13 states have (on average 16.076923076923077) internal successors, (209), 12 states have internal predecessors, (209), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:32:43,836 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:32:48,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:32:50,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:32:50,756 INFO L93 Difference]: Finished difference Result 10902 states and 15086 transitions. [2022-03-18 16:32:50,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-18 16:32:50,756 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 16.076923076923077) internal successors, (209), 12 states have internal predecessors, (209), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 271 [2022-03-18 16:32:50,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:32:50,762 INFO L225 Difference]: With dead ends: 10902 [2022-03-18 16:32:50,762 INFO L226 Difference]: Without dead ends: 6516 [2022-03-18 16:32:50,764 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 573 GetRequests, 547 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=166, Invalid=590, Unknown=0, NotChecked=0, Total=756 [2022-03-18 16:32:50,764 INFO L912 BasicCegarLoop]: 212 mSDtfsCounter, 974 mSDsluCounter, 1309 mSDsCounter, 0 mSdLazyCounter, 1634 mSolverCounterSat, 297 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 1933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 297 IncrementalHoareTripleChecker+Valid, 1634 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-03-18 16:32:50,764 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [974 Valid, 1521 Invalid, 1933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [297 Valid, 1634 Invalid, 2 Unknown, 0 Unchecked, 10.6s Time] [2022-03-18 16:32:50,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6516 states. [2022-03-18 16:32:50,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6516 to 4414. [2022-03-18 16:32:50,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4414 states, 4409 states have (on average 1.3631208890904967) internal successors, (6010), 4409 states have internal predecessors, (6010), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:32:50,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4414 states to 4414 states and 6014 transitions. [2022-03-18 16:32:50,898 INFO L78 Accepts]: Start accepts. Automaton has 4414 states and 6014 transitions. Word has length 271 [2022-03-18 16:32:50,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:32:50,898 INFO L478 AbstractCegarLoop]: Abstraction has 4414 states and 6014 transitions. [2022-03-18 16:32:50,898 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 16.076923076923077) internal successors, (209), 12 states have internal predecessors, (209), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:32:50,898 INFO L276 IsEmpty]: Start isEmpty. Operand 4414 states and 6014 transitions. [2022-03-18 16:32:50,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-03-18 16:32:50,902 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:32:50,902 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 7, 7, 6, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:32:50,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-18 16:32:51,111 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:32:51,111 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:32:51,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:32:51,112 INFO L85 PathProgramCache]: Analyzing trace with hash 292965722, now seen corresponding path program 1 times [2022-03-18 16:32:51,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:32:51,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538312592] [2022-03-18 16:32:51,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:32:51,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:32:51,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:32:51,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:32:51,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:32:51,264 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 513 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2022-03-18 16:32:51,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:32:51,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538312592] [2022-03-18 16:32:51,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538312592] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:32:51,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:32:51,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:32:51,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627414767] [2022-03-18 16:32:51,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:32:51,265 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:32:51,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:32:51,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:32:51,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:32:51,266 INFO L87 Difference]: Start difference. First operand 4414 states and 6014 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:32:54,326 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:32:55,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:32:55,640 INFO L93 Difference]: Finished difference Result 8870 states and 12108 transitions. [2022-03-18 16:32:55,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:32:55,640 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 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 273 [2022-03-18 16:32:55,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:32:55,644 INFO L225 Difference]: With dead ends: 8870 [2022-03-18 16:32:55,644 INFO L226 Difference]: Without dead ends: 4484 [2022-03-18 16:32:55,646 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:32:55,647 INFO L912 BasicCegarLoop]: 214 mSDtfsCounter, 24 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:32:55,647 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 541 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-18 16:32:55,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4484 states. [2022-03-18 16:32:55,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4484 to 4414. [2022-03-18 16:32:55,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4414 states, 4409 states have (on average 1.3615332274892267) internal successors, (6003), 4409 states have internal predecessors, (6003), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:32:55,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4414 states to 4414 states and 6007 transitions. [2022-03-18 16:32:55,774 INFO L78 Accepts]: Start accepts. Automaton has 4414 states and 6007 transitions. Word has length 273 [2022-03-18 16:32:55,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:32:55,774 INFO L478 AbstractCegarLoop]: Abstraction has 4414 states and 6007 transitions. [2022-03-18 16:32:55,774 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:32:55,774 INFO L276 IsEmpty]: Start isEmpty. Operand 4414 states and 6007 transitions. [2022-03-18 16:32:55,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-03-18 16:32:55,778 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:32:55,778 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:32:55,778 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-18 16:32:55,778 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:32:55,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:32:55,779 INFO L85 PathProgramCache]: Analyzing trace with hash 352284730, now seen corresponding path program 1 times [2022-03-18 16:32:55,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:32:55,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874342753] [2022-03-18 16:32:55,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:32:55,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:32:55,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:32:55,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:32:55,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:32:55,957 INFO L134 CoverageAnalysis]: Checked inductivity of 799 backedges. 520 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-03-18 16:32:55,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:32:55,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874342753] [2022-03-18 16:32:55,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874342753] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:32:55,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:32:55,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:32:55,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131137118] [2022-03-18 16:32:55,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:32:55,958 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:32:55,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:32:55,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:32:55,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:32:55,959 INFO L87 Difference]: Start difference. First operand 4414 states and 6007 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:32:58,846 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:33:00,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:33:00,209 INFO L93 Difference]: Finished difference Result 9153 states and 12461 transitions. [2022-03-18 16:33:00,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:33:00,210 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 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 275 [2022-03-18 16:33:00,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:33:00,214 INFO L225 Difference]: With dead ends: 9153 [2022-03-18 16:33:00,214 INFO L226 Difference]: Without dead ends: 4767 [2022-03-18 16:33:00,217 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:33:00,217 INFO L912 BasicCegarLoop]: 158 mSDtfsCounter, 113 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-18 16:33:00,218 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 423 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-03-18 16:33:00,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4767 states. [2022-03-18 16:33:00,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4767 to 4232. [2022-03-18 16:33:00,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4232 states, 4227 states have (on average 1.347764371894961) internal successors, (5697), 4227 states have internal predecessors, (5697), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:33:00,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4232 states to 4232 states and 5701 transitions. [2022-03-18 16:33:00,333 INFO L78 Accepts]: Start accepts. Automaton has 4232 states and 5701 transitions. Word has length 275 [2022-03-18 16:33:00,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:33:00,334 INFO L478 AbstractCegarLoop]: Abstraction has 4232 states and 5701 transitions. [2022-03-18 16:33:00,334 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:33:00,334 INFO L276 IsEmpty]: Start isEmpty. Operand 4232 states and 5701 transitions. [2022-03-18 16:33:00,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-03-18 16:33:00,338 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:33:00,338 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2022-03-18 16:33:00,338 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-18 16:33:00,338 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:33:00,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:33:00,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1170395498, now seen corresponding path program 1 times [2022-03-18 16:33:00,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:33:00,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027689025] [2022-03-18 16:33:00,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:33:00,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:33:00,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:33:01,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:33:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:33:01,469 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 196 proven. 445 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-03-18 16:33:01,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:33:01,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027689025] [2022-03-18 16:33:01,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027689025] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:33:01,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174233578] [2022-03-18 16:33:01,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:33:01,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:33:01,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:33:01,472 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 16:33:01,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-18 16:33:02,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:33:02,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 1528 conjuncts, 101 conjunts are in the unsatisfiable core [2022-03-18 16:33:02,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:33:02,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:02,510 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-03-18 16:33:02,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:02,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:02,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:02,667 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-18 16:33:02,667 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-18 16:33:02,796 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-18 16:33:02,803 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-18 16:33:02,852 INFO L356 Elim1Store]: treesize reduction 31, result has 44.6 percent of original size [2022-03-18 16:33:02,852 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 82 [2022-03-18 16:33:02,868 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-03-18 16:33:02,868 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 64 [2022-03-18 16:33:02,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:02,895 INFO L356 Elim1Store]: treesize reduction 48, result has 44.8 percent of original size [2022-03-18 16:33:02,895 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 54 [2022-03-18 16:33:03,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:03,010 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 114 [2022-03-18 16:33:03,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:03,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:03,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:03,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:03,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:03,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:03,035 INFO L356 Elim1Store]: treesize reduction 133, result has 24.4 percent of original size [2022-03-18 16:33:03,035 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 127 treesize of output 145 [2022-03-18 16:33:03,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:03,038 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 133 [2022-03-18 16:33:04,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:04,158 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 121 [2022-03-18 16:33:04,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:04,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:04,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:04,185 INFO L356 Elim1Store]: treesize reduction 128, result has 27.3 percent of original size [2022-03-18 16:33:04,186 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 136 treesize of output 137 [2022-03-18 16:33:04,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:04,193 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 137 [2022-03-18 16:33:05,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:05,619 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-18 16:33:05,620 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 194 treesize of output 189 [2022-03-18 16:33:05,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:05,655 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-18 16:33:05,656 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 171 treesize of output 166 [2022-03-18 16:33:05,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:05,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:05,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:05,741 INFO L356 Elim1Store]: treesize reduction 122, result has 44.8 percent of original size [2022-03-18 16:33:05,741 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 76 treesize of output 134 [2022-03-18 16:33:36,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:36,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:36,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:36,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:36,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:36,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:36,732 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 315 treesize of output 279 [2022-03-18 16:33:36,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:36,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:36,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:36,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:36,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:36,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:36,769 INFO L356 Elim1Store]: treesize reduction 117, result has 14.0 percent of original size [2022-03-18 16:33:36,770 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 315 treesize of output 298 [2022-03-18 16:33:36,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:36,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:36,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:36,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:36,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:36,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:33:36,779 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 297 treesize of output 261 [2022-03-18 16:36:22,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:36:22,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:36:22,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:36:22,413 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 334 treesize of output 282 [2022-03-18 16:36:22,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:36:22,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:36:22,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:36:22,422 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 334 treesize of output 282 [2022-03-18 16:36:22,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:36:22,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:36:22,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:36:22,455 INFO L356 Elim1Store]: treesize reduction 67, result has 11.8 percent of original size [2022-03-18 16:36:22,455 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 334 treesize of output 315 [2022-03-18 16:36:26,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:36:26,308 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 117 [2022-03-18 16:36:26,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:36:26,312 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 81 [2022-03-18 16:36:26,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:36:26,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:36:26,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:36:26,348 INFO L356 Elim1Store]: treesize reduction 193, result has 12.7 percent of original size [2022-03-18 16:36:26,348 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 100 treesize of output 99 [2022-03-18 16:36:26,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:36:26,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:36:26,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:36:26,438 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-18 16:36:26,438 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 35 [2022-03-18 16:36:26,645 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 346 proven. 274 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-03-18 16:36:26,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-18 16:36:30,270 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-18 16:36:30,272 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 342266 treesize of output 283040 [2022-03-18 16:36:32,525 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-03-18 16:36:32,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-18 16:36:32,728 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2022-03-18 16:36:32,728 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArithmeticException: BigInteger out of long range at java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.computeDerApplicabilityScore(QuantifierPusher.java:685) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.selectBestEliminatee(QuantifierPusher.java:668) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.doit(QuantifierPusher.java:604) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:446) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:261) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:247) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:92) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:596) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:264) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-03-18 16:36:32,731 INFO L158 Benchmark]: Toolchain (without parser) took 468934.10ms. Allocated memory was 199.2MB in the beginning and 533.7MB in the end (delta: 334.5MB). Free memory was 143.1MB in the beginning and 366.6MB in the end (delta: -223.5MB). Peak memory consumption was 379.9MB. Max. memory is 8.0GB. [2022-03-18 16:36:32,731 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 199.2MB. Free memory is still 162.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-18 16:36:32,731 INFO L158 Benchmark]: CACSL2BoogieTranslator took 421.98ms. Allocated memory was 199.2MB in the beginning and 240.1MB in the end (delta: 40.9MB). Free memory was 142.8MB in the beginning and 194.1MB in the end (delta: -51.3MB). Peak memory consumption was 15.3MB. Max. memory is 8.0GB. [2022-03-18 16:36:32,732 INFO L158 Benchmark]: Boogie Preprocessor took 63.23ms. Allocated memory is still 240.1MB. Free memory was 194.1MB in the beginning and 186.3MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-18 16:36:32,732 INFO L158 Benchmark]: RCFGBuilder took 1315.25ms. Allocated memory is still 240.1MB. Free memory was 186.3MB in the beginning and 194.8MB in the end (delta: -8.5MB). Peak memory consumption was 69.6MB. Max. memory is 8.0GB. [2022-03-18 16:36:32,732 INFO L158 Benchmark]: TraceAbstraction took 467129.34ms. Allocated memory was 240.1MB in the beginning and 533.7MB in the end (delta: 293.6MB). Free memory was 194.3MB in the beginning and 366.6MB in the end (delta: -172.3MB). Peak memory consumption was 390.4MB. Max. memory is 8.0GB. [2022-03-18 16:36:32,732 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 199.2MB. Free memory is still 162.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 421.98ms. Allocated memory was 199.2MB in the beginning and 240.1MB in the end (delta: 40.9MB). Free memory was 142.8MB in the beginning and 194.1MB in the end (delta: -51.3MB). Peak memory consumption was 15.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 63.23ms. Allocated memory is still 240.1MB. Free memory was 194.1MB in the beginning and 186.3MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 1315.25ms. Allocated memory is still 240.1MB. Free memory was 186.3MB in the beginning and 194.8MB in the end (delta: -8.5MB). Peak memory consumption was 69.6MB. Max. memory is 8.0GB. * TraceAbstraction took 467129.34ms. Allocated memory was 240.1MB in the beginning and 533.7MB in the end (delta: 293.6MB). Free memory was 194.3MB in the beginning and 366.6MB in the end (delta: -172.3MB). Peak memory consumption was 390.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ArithmeticException: BigInteger out of long range de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArithmeticException: BigInteger out of long range: java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-03-18 16:36:32,781 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...