/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.14.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-5d317bd [2022-03-18 16:38:17,149 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-18 16:38:17,156 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-18 16:38:17,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-18 16:38:17,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-18 16:38:17,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-18 16:38:17,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-18 16:38:17,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-18 16:38:17,194 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-18 16:38:17,194 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-18 16:38:17,195 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-18 16:38:17,196 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-18 16:38:17,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-18 16:38:17,197 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-18 16:38:17,198 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-18 16:38:17,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-18 16:38:17,200 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-18 16:38:17,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-18 16:38:17,202 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-18 16:38:17,204 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-18 16:38:17,205 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-18 16:38:17,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-18 16:38:17,206 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-18 16:38:17,207 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-18 16:38:17,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-18 16:38:17,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-18 16:38:17,210 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-18 16:38:17,211 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-18 16:38:17,211 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-18 16:38:17,212 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-18 16:38:17,212 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-03-18 16:38:17,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-18 16:38:17,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-18 16:38:17,218 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-18 16:38:17,219 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 16:38:17,248 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-18 16:38:17,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-18 16:38:17,249 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-18 16:38:17,249 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-18 16:38:17,250 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-18 16:38:17,251 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-18 16:38:17,251 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-18 16:38:17,251 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-18 16:38:17,251 INFO L138 SettingsManager]: * Use SBE=true [2022-03-18 16:38:17,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-18 16:38:17,252 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-18 16:38:17,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-18 16:38:17,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-18 16:38:17,252 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-18 16:38:17,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-18 16:38:17,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-18 16:38:17,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-18 16:38:17,254 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-18 16:38:17,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-18 16:38:17,254 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-18 16:38:17,254 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-18 16:38:17,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-18 16:38:17,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-18 16:38:17,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-18 16:38:17,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 16:38:17,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-18 16:38:17,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-18 16:38:17,255 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-18 16:38:17,255 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-18 16:38:17,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-18 16:38:17,255 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-18 16:38:17,256 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-03-18 16:38:17,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-18 16:38:17,256 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-18 16:38:17,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-18 16:38:17,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-18 16:38:17,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-18 16:38:17,474 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-18 16:38:17,475 INFO L275 PluginConnector]: CDTParser initialized [2022-03-18 16:38:17,476 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-2.c [2022-03-18 16:38:17,522 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8827ff7b/f3faca1632094e9aac1116b30990f0c1/FLAGd99554652 [2022-03-18 16:38:18,013 INFO L306 CDTParser]: Found 1 translation units. [2022-03-18 16:38:18,013 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-2.c [2022-03-18 16:38:18,050 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8827ff7b/f3faca1632094e9aac1116b30990f0c1/FLAGd99554652 [2022-03-18 16:38:18,544 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8827ff7b/f3faca1632094e9aac1116b30990f0c1 [2022-03-18 16:38:18,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-18 16:38:18,547 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-18 16:38:18,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-18 16:38:18,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-18 16:38:18,550 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-18 16:38:18,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 04:38:18" (1/1) ... [2022-03-18 16:38:18,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5deae470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:38:18, skipping insertion in model container [2022-03-18 16:38:18,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 04:38:18" (1/1) ... [2022-03-18 16:38:18,557 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-18 16:38:18,598 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-18 16:38:18,940 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.14.i.cil-2.c[76259,76272] [2022-03-18 16:38:18,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 16:38:18,966 INFO L203 MainTranslator]: Completed pre-run [2022-03-18 16:38:19,052 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.14.i.cil-2.c[76259,76272] [2022-03-18 16:38:19,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 16:38:19,067 INFO L208 MainTranslator]: Completed translation [2022-03-18 16:38:19,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:38:19 WrapperNode [2022-03-18 16:38:19,068 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-18 16:38:19,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-18 16:38:19,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-18 16:38:19,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-18 16:38:19,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:38:19" (1/1) ... [2022-03-18 16:38:19,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:38:19" (1/1) ... [2022-03-18 16:38:19,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:38:19" (1/1) ... [2022-03-18 16:38:19,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:38:19" (1/1) ... [2022-03-18 16:38:19,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:38:19" (1/1) ... [2022-03-18 16:38:19,184 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:38:19" (1/1) ... [2022-03-18 16:38:19,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:38:19" (1/1) ... [2022-03-18 16:38:19,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-18 16:38:19,192 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-18 16:38:19,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-18 16:38:19,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-18 16:38:19,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:38:19" (1/1) ... [2022-03-18 16:38:19,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 16:38:19,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:38:19,219 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 16:38:19,237 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 16:38:19,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-18 16:38:19,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-18 16:38:19,260 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-18 16:38:19,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-18 16:38:19,262 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-18 16:38:19,262 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-18 16:38:19,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-18 16:38:19,262 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-18 16:38:19,262 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-18 16:38:19,263 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-18 16:38:19,263 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-18 16:38:19,263 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-18 16:38:19,263 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-18 16:38:19,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-18 16:38:19,263 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-18 16:38:19,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-18 16:38:19,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-18 16:38:19,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-18 16:38:19,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-18 16:38:19,264 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-18 16:38:19,264 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-18 16:38:19,265 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-18 16:38:19,265 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-18 16:38:19,265 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-18 16:38:19,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-18 16:38:19,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-18 16:38:19,265 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-18 16:38:19,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-18 16:38:19,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-18 16:38:19,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-18 16:38:19,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-18 16:38:19,266 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-18 16:38:19,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-18 16:38:19,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-18 16:38:19,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-18 16:38:19,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-18 16:38:19,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-18 16:38:19,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-18 16:38:19,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-18 16:38:19,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-18 16:38:19,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-18 16:38:19,462 INFO L234 CfgBuilder]: Building ICFG [2022-03-18 16:38:19,464 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-18 16:38:20,134 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-18 16:38:20,554 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-18 16:38:20,555 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-18 16:38:20,565 INFO L275 CfgBuilder]: Performing block encoding [2022-03-18 16:38:20,575 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-18 16:38:20,575 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-18 16:38:20,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 04:38:20 BoogieIcfgContainer [2022-03-18 16:38:20,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-18 16:38:20,578 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-18 16:38:20,578 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-18 16:38:20,581 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-18 16:38:20,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.03 04:38:18" (1/3) ... [2022-03-18 16:38:20,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e8c1418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 04:38:20, skipping insertion in model container [2022-03-18 16:38:20,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 04:38:19" (2/3) ... [2022-03-18 16:38:20,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e8c1418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 04:38:20, skipping insertion in model container [2022-03-18 16:38:20,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 04:38:20" (3/3) ... [2022-03-18 16:38:20,584 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.14.i.cil-2.c [2022-03-18 16:38:20,587 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-18 16:38:20,587 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-18 16:38:20,620 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-18 16:38:20,625 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 16:38:20,626 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-18 16:38:20,641 INFO L276 IsEmpty]: Start isEmpty. Operand has 163 states, 155 states have (on average 1.7161290322580645) internal successors, (266), 156 states have internal predecessors, (266), 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 16:38:20,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-18 16:38:20,648 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:38:20,649 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 16:38:20,649 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:38:20,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:38:20,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1492919843, now seen corresponding path program 1 times [2022-03-18 16:38:20,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:38:20,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061496933] [2022-03-18 16:38:20,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:38:20,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:38:20,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:21,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:38:21,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:21,223 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 16:38:21,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:38:21,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061496933] [2022-03-18 16:38:21,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061496933] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:38:21,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:38:21,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:38:21,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203642585] [2022-03-18 16:38:21,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:38:21,237 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:38:21,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:38:21,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:38:21,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:38:21,271 INFO L87 Difference]: Start difference. First operand has 163 states, 155 states have (on average 1.7161290322580645) internal successors, (266), 156 states have internal predecessors, (266), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.0) 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 16:38:22,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:38:22,927 INFO L93 Difference]: Finished difference Result 445 states and 756 transitions. [2022-03-18 16:38:22,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:38:22,930 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 16:38:22,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:38:22,940 INFO L225 Difference]: With dead ends: 445 [2022-03-18 16:38:22,940 INFO L226 Difference]: Without dead ends: 271 [2022-03-18 16:38:22,943 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 16:38:22,950 INFO L912 BasicCegarLoop]: 167 mSDtfsCounter, 164 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-18 16:38:22,955 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 491 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-18 16:38:22,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-03-18 16:38:23,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 187. [2022-03-18 16:38:23,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.6153846153846154) internal successors, (294), 182 states have internal predecessors, (294), 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 16:38:23,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 298 transitions. [2022-03-18 16:38:23,027 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 298 transitions. Word has length 49 [2022-03-18 16:38:23,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:38:23,027 INFO L478 AbstractCegarLoop]: Abstraction has 187 states and 298 transitions. [2022-03-18 16:38:23,028 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 16:38:23,028 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 298 transitions. [2022-03-18 16:38:23,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-18 16:38:23,034 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:38:23,034 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, 1] [2022-03-18 16:38:23,035 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-18 16:38:23,035 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:38:23,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:38:23,035 INFO L85 PathProgramCache]: Analyzing trace with hash 723852413, now seen corresponding path program 1 times [2022-03-18 16:38:23,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:38:23,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558348851] [2022-03-18 16:38:23,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:38:23,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:38:23,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:23,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:38:23,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:23,248 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 16:38:23,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:38:23,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558348851] [2022-03-18 16:38:23,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558348851] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:38:23,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:38:23,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:38:23,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495885088] [2022-03-18 16:38:23,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:38:23,260 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:38:23,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:38:23,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:38:23,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:38:23,262 INFO L87 Difference]: Start difference. First operand 187 states and 298 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states 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 16:38:24,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:38:24,844 INFO L93 Difference]: Finished difference Result 387 states and 618 transitions. [2022-03-18 16:38:24,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:38:24,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 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 50 [2022-03-18 16:38:24,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:38:24,848 INFO L225 Difference]: With dead ends: 387 [2022-03-18 16:38:24,848 INFO L226 Difference]: Without dead ends: 215 [2022-03-18 16:38:24,849 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 16:38:24,850 INFO L912 BasicCegarLoop]: 196 mSDtfsCounter, 22 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-18 16:38:24,850 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 511 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-18 16:38:24,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-03-18 16:38:24,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 198. [2022-03-18 16:38:24,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 193 states have (on average 1.621761658031088) internal successors, (313), 193 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 16:38:24,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 317 transitions. [2022-03-18 16:38:24,874 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 317 transitions. Word has length 50 [2022-03-18 16:38:24,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:38:24,875 INFO L478 AbstractCegarLoop]: Abstraction has 198 states and 317 transitions. [2022-03-18 16:38:24,877 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states 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 16:38:24,877 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 317 transitions. [2022-03-18 16:38:24,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-18 16:38:24,881 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:38:24,881 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:38:24,881 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-18 16:38:24,881 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:38:24,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:38:24,882 INFO L85 PathProgramCache]: Analyzing trace with hash -196136314, now seen corresponding path program 1 times [2022-03-18 16:38:24,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:38:24,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84006990] [2022-03-18 16:38:24,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:38:24,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:38:24,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:25,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:38:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:25,060 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:38:25,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:38:25,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84006990] [2022-03-18 16:38:25,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84006990] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:38:25,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:38:25,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:38:25,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81774668] [2022-03-18 16:38:25,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:38:25,061 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:38:25,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:38:25,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:38:25,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:38:25,062 INFO L87 Difference]: Start difference. First operand 198 states and 317 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 16:38:26,927 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 16:38:28,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:38:28,316 INFO L93 Difference]: Finished difference Result 387 states and 617 transitions. [2022-03-18 16:38:28,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:38:28,317 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 63 [2022-03-18 16:38:28,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:38:28,318 INFO L225 Difference]: With dead ends: 387 [2022-03-18 16:38:28,318 INFO L226 Difference]: Without dead ends: 215 [2022-03-18 16:38:28,319 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 16:38:28,320 INFO L912 BasicCegarLoop]: 197 mSDtfsCounter, 24 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:38:28,320 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 513 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-18 16:38:28,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-03-18 16:38:28,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 198. [2022-03-18 16:38:28,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 193 states have (on average 1.616580310880829) internal successors, (312), 193 states have internal predecessors, (312), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:28,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 316 transitions. [2022-03-18 16:38:28,334 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 316 transitions. Word has length 63 [2022-03-18 16:38:28,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:38:28,334 INFO L478 AbstractCegarLoop]: Abstraction has 198 states and 316 transitions. [2022-03-18 16:38:28,334 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 16:38:28,334 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 316 transitions. [2022-03-18 16:38:28,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-18 16:38:28,335 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:38:28,335 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:38:28,336 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-18 16:38:28,336 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:38:28,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:38:28,336 INFO L85 PathProgramCache]: Analyzing trace with hash 2113932086, now seen corresponding path program 1 times [2022-03-18 16:38:28,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:38:28,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821285127] [2022-03-18 16:38:28,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:38:28,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:38:28,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:28,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:38:28,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:28,491 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:38:28,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:38:28,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821285127] [2022-03-18 16:38:28,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821285127] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:38:28,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:38:28,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:38:28,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486048442] [2022-03-18 16:38:28,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:38:28,496 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:38:28,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:38:28,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:38:28,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:38:28,498 INFO L87 Difference]: Start difference. First operand 198 states and 316 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 16:38:30,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:38:30,449 INFO L93 Difference]: Finished difference Result 386 states and 615 transitions. [2022-03-18 16:38:30,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:38:30,450 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 64 [2022-03-18 16:38:30,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:38:30,451 INFO L225 Difference]: With dead ends: 386 [2022-03-18 16:38:30,451 INFO L226 Difference]: Without dead ends: 214 [2022-03-18 16:38:30,452 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 16:38:30,453 INFO L912 BasicCegarLoop]: 198 mSDtfsCounter, 28 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-18 16:38:30,453 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 515 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-18 16:38:30,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-03-18 16:38:30,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 198. [2022-03-18 16:38:30,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 193 states have (on average 1.61139896373057) internal successors, (311), 193 states have internal predecessors, (311), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:30,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 315 transitions. [2022-03-18 16:38:30,462 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 315 transitions. Word has length 64 [2022-03-18 16:38:30,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:38:30,462 INFO L478 AbstractCegarLoop]: Abstraction has 198 states and 315 transitions. [2022-03-18 16:38:30,463 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 16:38:30,463 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 315 transitions. [2022-03-18 16:38:30,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-18 16:38:30,463 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:38:30,463 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:38:30,464 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-18 16:38:30,464 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:38:30,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:38:30,464 INFO L85 PathProgramCache]: Analyzing trace with hash -294131766, now seen corresponding path program 1 times [2022-03-18 16:38:30,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:38:30,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162538708] [2022-03-18 16:38:30,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:38:30,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:38:30,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:30,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:38:30,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:30,591 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:38:30,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:38:30,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162538708] [2022-03-18 16:38:30,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162538708] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:38:30,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:38:30,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:38:30,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638625690] [2022-03-18 16:38:30,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:38:30,592 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:38:30,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:38:30,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:38:30,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:38:30,593 INFO L87 Difference]: Start difference. First operand 198 states and 315 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 16:38:32,612 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 16:38:33,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:38:33,577 INFO L93 Difference]: Finished difference Result 493 states and 788 transitions. [2022-03-18 16:38:33,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:38:33,578 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 64 [2022-03-18 16:38:33,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:38:33,579 INFO L225 Difference]: With dead ends: 493 [2022-03-18 16:38:33,579 INFO L226 Difference]: Without dead ends: 321 [2022-03-18 16:38:33,580 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 16:38:33,581 INFO L912 BasicCegarLoop]: 128 mSDtfsCounter, 159 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-18 16:38:33,581 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 374 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-18 16:38:33,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-03-18 16:38:33,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 210. [2022-03-18 16:38:33,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 205 states have (on average 1.5951219512195123) internal successors, (327), 205 states have internal predecessors, (327), 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 16:38:33,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 331 transitions. [2022-03-18 16:38:33,589 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 331 transitions. Word has length 64 [2022-03-18 16:38:33,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:38:33,589 INFO L478 AbstractCegarLoop]: Abstraction has 210 states and 331 transitions. [2022-03-18 16:38:33,590 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 16:38:33,590 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 331 transitions. [2022-03-18 16:38:33,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-18 16:38:33,590 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:38:33,591 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:38:33,591 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-18 16:38:33,591 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:38:33,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:38:33,591 INFO L85 PathProgramCache]: Analyzing trace with hash 820875073, now seen corresponding path program 1 times [2022-03-18 16:38:33,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:38:33,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051104474] [2022-03-18 16:38:33,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:38:33,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:38:33,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:33,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:38:33,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:33,699 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:38:33,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:38:33,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051104474] [2022-03-18 16:38:33,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051104474] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:38:33,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:38:33,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:38:33,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592696669] [2022-03-18 16:38:33,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:38:33,700 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:38:33,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:38:33,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:38:33,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:38:33,701 INFO L87 Difference]: Start difference. First operand 210 states and 331 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 16:38:36,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:38:36,151 INFO L93 Difference]: Finished difference Result 505 states and 802 transitions. [2022-03-18 16:38:36,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:38:36,152 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 64 [2022-03-18 16:38:36,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:38:36,153 INFO L225 Difference]: With dead ends: 505 [2022-03-18 16:38:36,154 INFO L226 Difference]: Without dead ends: 321 [2022-03-18 16:38:36,154 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 16:38:36,155 INFO L912 BasicCegarLoop]: 128 mSDtfsCounter, 153 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:38:36,155 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 374 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:38:36,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-03-18 16:38:36,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 215. [2022-03-18 16:38:36,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 210 states have (on average 1.5904761904761904) internal successors, (334), 210 states have internal predecessors, (334), 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 16:38:36,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 338 transitions. [2022-03-18 16:38:36,163 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 338 transitions. Word has length 64 [2022-03-18 16:38:36,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:38:36,163 INFO L478 AbstractCegarLoop]: Abstraction has 215 states and 338 transitions. [2022-03-18 16:38:36,163 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 16:38:36,163 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 338 transitions. [2022-03-18 16:38:36,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-18 16:38:36,164 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:38:36,164 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:38:36,164 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-18 16:38:36,165 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:38:36,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:38:36,165 INFO L85 PathProgramCache]: Analyzing trace with hash 888435074, now seen corresponding path program 1 times [2022-03-18 16:38:36,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:38:36,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444691773] [2022-03-18 16:38:36,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:38:36,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:38:36,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:36,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:38:36,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:36,305 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:38:36,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:38:36,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444691773] [2022-03-18 16:38:36,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444691773] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:38:36,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:38:36,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:38:36,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380752579] [2022-03-18 16:38:36,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:38:36,306 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:38:36,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:38:36,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:38:36,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:38:36,307 INFO L87 Difference]: Start difference. First operand 215 states and 338 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 16:38:37,741 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 16:38:39,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:38:39,421 INFO L93 Difference]: Finished difference Result 509 states and 806 transitions. [2022-03-18 16:38:39,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:38:39,422 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 64 [2022-03-18 16:38:39,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:38:39,423 INFO L225 Difference]: With dead ends: 509 [2022-03-18 16:38:39,424 INFO L226 Difference]: Without dead ends: 320 [2022-03-18 16:38:39,424 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 16:38:39,425 INFO L912 BasicCegarLoop]: 129 mSDtfsCounter, 151 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-18 16:38:39,425 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 376 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-18 16:38:39,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-03-18 16:38:39,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 216. [2022-03-18 16:38:39,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.5781990521327014) internal successors, (333), 211 states have internal predecessors, (333), 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 16:38:39,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 337 transitions. [2022-03-18 16:38:39,433 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 337 transitions. Word has length 64 [2022-03-18 16:38:39,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:38:39,433 INFO L478 AbstractCegarLoop]: Abstraction has 216 states and 337 transitions. [2022-03-18 16:38:39,433 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 16:38:39,433 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 337 transitions. [2022-03-18 16:38:39,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-18 16:38:39,434 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:38:39,434 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:38:39,434 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-18 16:38:39,434 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:38:39,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:38:39,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1481005359, now seen corresponding path program 1 times [2022-03-18 16:38:39,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:38:39,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989092013] [2022-03-18 16:38:39,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:38:39,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:38:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:39,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:38:39,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:39,538 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:38:39,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:38:39,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989092013] [2022-03-18 16:38:39,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989092013] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:38:39,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:38:39,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:38:39,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830428738] [2022-03-18 16:38:39,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:38:39,539 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:38:39,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:38:39,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:38:39,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:38:39,540 INFO L87 Difference]: Start difference. First operand 216 states and 337 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 16:38:42,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:38:42,034 INFO L93 Difference]: Finished difference Result 510 states and 803 transitions. [2022-03-18 16:38:42,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:38:42,034 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-03-18 16:38:42,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:38:42,036 INFO L225 Difference]: With dead ends: 510 [2022-03-18 16:38:42,036 INFO L226 Difference]: Without dead ends: 320 [2022-03-18 16:38:42,037 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 16:38:42,037 INFO L912 BasicCegarLoop]: 129 mSDtfsCounter, 155 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-18 16:38:42,038 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 376 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-18 16:38:42,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-03-18 16:38:42,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 216. [2022-03-18 16:38:42,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.5639810426540284) internal successors, (330), 211 states have internal predecessors, (330), 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 16:38:42,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 334 transitions. [2022-03-18 16:38:42,045 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 334 transitions. Word has length 65 [2022-03-18 16:38:42,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:38:42,045 INFO L478 AbstractCegarLoop]: Abstraction has 216 states and 334 transitions. [2022-03-18 16:38:42,045 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 16:38:42,045 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 334 transitions. [2022-03-18 16:38:42,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-18 16:38:42,046 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:38:42,046 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:38:42,046 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-18 16:38:42,046 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:38:42,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:38:42,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1940444079, now seen corresponding path program 1 times [2022-03-18 16:38:42,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:38:42,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712686603] [2022-03-18 16:38:42,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:38:42,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:38:42,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:42,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:38:42,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:42,176 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:38:42,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:38:42,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712686603] [2022-03-18 16:38:42,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712686603] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:38:42,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:38:42,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:38:42,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301809075] [2022-03-18 16:38:42,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:38:42,177 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:38:42,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:38:42,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:38:42,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:38:42,179 INFO L87 Difference]: Start difference. First operand 216 states and 334 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 16:38:44,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:38:44,433 INFO L93 Difference]: Finished difference Result 419 states and 653 transitions. [2022-03-18 16:38:44,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:38:44,433 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-18 16:38:44,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:38:44,434 INFO L225 Difference]: With dead ends: 419 [2022-03-18 16:38:44,435 INFO L226 Difference]: Without dead ends: 229 [2022-03-18 16:38:44,435 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 16:38:44,436 INFO L912 BasicCegarLoop]: 201 mSDtfsCounter, 20 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:38:44,436 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 521 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-18 16:38:44,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-03-18 16:38:44,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 216. [2022-03-18 16:38:44,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.5592417061611374) internal successors, (329), 211 states have internal predecessors, (329), 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 16:38:44,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 333 transitions. [2022-03-18 16:38:44,442 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 333 transitions. Word has length 66 [2022-03-18 16:38:44,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:38:44,442 INFO L478 AbstractCegarLoop]: Abstraction has 216 states and 333 transitions. [2022-03-18 16:38:44,442 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 16:38:44,442 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 333 transitions. [2022-03-18 16:38:44,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-18 16:38:44,443 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:38:44,443 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:38:44,443 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-18 16:38:44,443 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:38:44,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:38:44,444 INFO L85 PathProgramCache]: Analyzing trace with hash 267937908, now seen corresponding path program 1 times [2022-03-18 16:38:44,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:38:44,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215345721] [2022-03-18 16:38:44,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:38:44,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:38:44,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:44,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:38:44,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:44,544 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:38:44,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:38:44,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215345721] [2022-03-18 16:38:44,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215345721] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:38:44,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:38:44,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:38:44,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600493679] [2022-03-18 16:38:44,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:38:44,545 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:38:44,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:38:44,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:38:44,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:38:44,546 INFO L87 Difference]: Start difference. First operand 216 states and 333 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 16:38:47,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:38:48,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:38:48,255 INFO L93 Difference]: Finished difference Result 510 states and 797 transitions. [2022-03-18 16:38:48,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:38:48,256 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-03-18 16:38:48,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:38:48,258 INFO L225 Difference]: With dead ends: 510 [2022-03-18 16:38:48,258 INFO L226 Difference]: Without dead ends: 320 [2022-03-18 16:38:48,258 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 16:38:48,259 INFO L912 BasicCegarLoop]: 129 mSDtfsCounter, 152 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-18 16:38:48,259 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 376 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-18 16:38:48,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-03-18 16:38:48,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 216. [2022-03-18 16:38:48,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.5450236966824644) internal successors, (326), 211 states have internal predecessors, (326), 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 16:38:48,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 330 transitions. [2022-03-18 16:38:48,265 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 330 transitions. Word has length 67 [2022-03-18 16:38:48,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:38:48,265 INFO L478 AbstractCegarLoop]: Abstraction has 216 states and 330 transitions. [2022-03-18 16:38:48,265 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 16:38:48,266 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 330 transitions. [2022-03-18 16:38:48,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-18 16:38:48,266 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:38:48,266 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:38:48,266 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-18 16:38:48,266 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:38:48,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:38:48,267 INFO L85 PathProgramCache]: Analyzing trace with hash -792632163, now seen corresponding path program 1 times [2022-03-18 16:38:48,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:38:48,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593712027] [2022-03-18 16:38:48,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:38:48,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:38:48,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:48,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:38:48,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:48,418 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:38:48,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:38:48,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593712027] [2022-03-18 16:38:48,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593712027] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:38:48,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:38:48,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:38:48,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281035509] [2022-03-18 16:38:48,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:38:48,419 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:38:48,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:38:48,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:38:48,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:38:48,420 INFO L87 Difference]: Start difference. First operand 216 states and 330 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 16:38:49,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:38:52,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:38:52,050 INFO L93 Difference]: Finished difference Result 448 states and 690 transitions. [2022-03-18 16:38:52,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:38:52,051 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-03-18 16:38:52,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:38:52,052 INFO L225 Difference]: With dead ends: 448 [2022-03-18 16:38:52,053 INFO L226 Difference]: Without dead ends: 258 [2022-03-18 16:38:52,053 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 16:38:52,054 INFO L912 BasicCegarLoop]: 205 mSDtfsCounter, 29 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-18 16:38:52,054 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 535 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-18 16:38:52,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-03-18 16:38:52,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 238. [2022-03-18 16:38:52,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 233 states have (on average 1.5407725321888412) internal successors, (359), 233 states have internal predecessors, (359), 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 16:38:52,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 363 transitions. [2022-03-18 16:38:52,060 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 363 transitions. Word has length 67 [2022-03-18 16:38:52,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:38:52,060 INFO L478 AbstractCegarLoop]: Abstraction has 238 states and 363 transitions. [2022-03-18 16:38:52,060 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 16:38:52,060 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 363 transitions. [2022-03-18 16:38:52,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-03-18 16:38:52,061 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:38:52,061 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:38:52,061 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-18 16:38:52,061 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:38:52,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:38:52,062 INFO L85 PathProgramCache]: Analyzing trace with hash -392094106, now seen corresponding path program 1 times [2022-03-18 16:38:52,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:38:52,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278325857] [2022-03-18 16:38:52,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:38:52,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:38:52,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:52,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:38:52,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:52,177 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:38:52,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:38:52,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278325857] [2022-03-18 16:38:52,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278325857] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:38:52,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:38:52,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:38:52,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465128653] [2022-03-18 16:38:52,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:38:52,178 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:38:52,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:38:52,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:38:52,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:38:52,179 INFO L87 Difference]: Start difference. First operand 238 states and 363 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 16:38:54,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:38:54,093 INFO L93 Difference]: Finished difference Result 468 states and 720 transitions. [2022-03-18 16:38:54,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:38:54,093 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 80 [2022-03-18 16:38:54,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:38:54,094 INFO L225 Difference]: With dead ends: 468 [2022-03-18 16:38:54,094 INFO L226 Difference]: Without dead ends: 256 [2022-03-18 16:38:54,095 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 16:38:54,095 INFO L912 BasicCegarLoop]: 208 mSDtfsCounter, 34 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-18 16:38:54,096 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 539 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-18 16:38:54,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-03-18 16:38:54,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 238. [2022-03-18 16:38:54,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 233 states have (on average 1.536480686695279) internal successors, (358), 233 states have internal predecessors, (358), 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 16:38:54,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 362 transitions. [2022-03-18 16:38:54,105 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 362 transitions. Word has length 80 [2022-03-18 16:38:54,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:38:54,105 INFO L478 AbstractCegarLoop]: Abstraction has 238 states and 362 transitions. [2022-03-18 16:38:54,105 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 16:38:54,105 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 362 transitions. [2022-03-18 16:38:54,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-03-18 16:38:54,106 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:38:54,106 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:38:54,106 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-18 16:38:54,106 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:38:54,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:38:54,107 INFO L85 PathProgramCache]: Analyzing trace with hash 334207830, now seen corresponding path program 1 times [2022-03-18 16:38:54,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:38:54,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500892122] [2022-03-18 16:38:54,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:38:54,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:38:54,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:54,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:38:54,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:54,242 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-18 16:38:54,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:38:54,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500892122] [2022-03-18 16:38:54,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500892122] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:38:54,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:38:54,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:38:54,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923972763] [2022-03-18 16:38:54,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:38:54,244 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:38:54,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:38:54,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:38:54,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:38:54,244 INFO L87 Difference]: Start difference. First operand 238 states and 362 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:56,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:38:56,616 INFO L93 Difference]: Finished difference Result 479 states and 734 transitions. [2022-03-18 16:38:56,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:38:56,617 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2022-03-18 16:38:56,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:38:56,618 INFO L225 Difference]: With dead ends: 479 [2022-03-18 16:38:56,618 INFO L226 Difference]: Without dead ends: 267 [2022-03-18 16:38:56,618 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 16:38:56,619 INFO L912 BasicCegarLoop]: 237 mSDtfsCounter, 19 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:38:56,619 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 598 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:38:56,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-03-18 16:38:56,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 254. [2022-03-18 16:38:56,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 249 states have (on average 1.5301204819277108) internal successors, (381), 249 states have internal predecessors, (381), 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 16:38:56,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 385 transitions. [2022-03-18 16:38:56,625 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 385 transitions. Word has length 81 [2022-03-18 16:38:56,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:38:56,626 INFO L478 AbstractCegarLoop]: Abstraction has 254 states and 385 transitions. [2022-03-18 16:38:56,626 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:38:56,626 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 385 transitions. [2022-03-18 16:38:56,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-18 16:38:56,627 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:38:56,627 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:38:56,627 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-18 16:38:56,627 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:38:56,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:38:56,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1171749751, now seen corresponding path program 1 times [2022-03-18 16:38:56,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:38:56,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629379158] [2022-03-18 16:38:56,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:38:56,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:38:56,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:56,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:38:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:56,739 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-18 16:38:56,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:38:56,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629379158] [2022-03-18 16:38:56,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629379158] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:38:56,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:38:56,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-18 16:38:56,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013531407] [2022-03-18 16:38:56,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:38:56,740 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-18 16:38:56,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:38:56,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-18 16:38:56,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-18 16:38:56,741 INFO L87 Difference]: Start difference. First operand 254 states and 385 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 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 16:38:59,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:38:59,732 INFO L93 Difference]: Finished difference Result 491 states and 752 transitions. [2022-03-18 16:38:59,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-18 16:38:59,732 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 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 82 [2022-03-18 16:38:59,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:38:59,733 INFO L225 Difference]: With dead ends: 491 [2022-03-18 16:38:59,734 INFO L226 Difference]: Without dead ends: 263 [2022-03-18 16:38:59,734 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-18 16:38:59,734 INFO L912 BasicCegarLoop]: 213 mSDtfsCounter, 3 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-18 16:38:59,735 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 673 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-18 16:38:59,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2022-03-18 16:38:59,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 263. [2022-03-18 16:38:59,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 258 states have (on average 1.5193798449612403) internal successors, (392), 258 states have internal predecessors, (392), 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 16:38:59,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 396 transitions. [2022-03-18 16:38:59,741 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 396 transitions. Word has length 82 [2022-03-18 16:38:59,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:38:59,741 INFO L478 AbstractCegarLoop]: Abstraction has 263 states and 396 transitions. [2022-03-18 16:38:59,741 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 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 16:38:59,741 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 396 transitions. [2022-03-18 16:38:59,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-18 16:38:59,742 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:38:59,742 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:38:59,742 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-18 16:38:59,742 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:38:59,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:38:59,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1031424542, now seen corresponding path program 1 times [2022-03-18 16:38:59,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:38:59,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102099618] [2022-03-18 16:38:59,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:38:59,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:38:59,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:59,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:38:59,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:38:59,854 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 16:38:59,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:38:59,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102099618] [2022-03-18 16:38:59,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102099618] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:38:59,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:38:59,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:38:59,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849989248] [2022-03-18 16:38:59,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:38:59,855 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:38:59,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:38:59,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:38:59,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:38:59,856 INFO L87 Difference]: Start difference. First operand 263 states and 396 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 16:39:01,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:01,725 INFO L93 Difference]: Finished difference Result 517 states and 784 transitions. [2022-03-18 16:39:01,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:39:01,726 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 84 [2022-03-18 16:39:01,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:01,727 INFO L225 Difference]: With dead ends: 517 [2022-03-18 16:39:01,727 INFO L226 Difference]: Without dead ends: 280 [2022-03-18 16:39:01,727 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 16:39:01,728 INFO L912 BasicCegarLoop]: 209 mSDtfsCounter, 34 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:01,728 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 541 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-18 16:39:01,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2022-03-18 16:39:01,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 263. [2022-03-18 16:39:01,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 258 states have (on average 1.5155038759689923) internal successors, (391), 258 states have internal predecessors, (391), 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 16:39:01,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 395 transitions. [2022-03-18 16:39:01,735 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 395 transitions. Word has length 84 [2022-03-18 16:39:01,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:01,735 INFO L478 AbstractCegarLoop]: Abstraction has 263 states and 395 transitions. [2022-03-18 16:39:01,735 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 16:39:01,735 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 395 transitions. [2022-03-18 16:39:01,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-03-18 16:39:01,736 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:01,736 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:39:01,736 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-18 16:39:01,737 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:01,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:01,737 INFO L85 PathProgramCache]: Analyzing trace with hash 618950673, now seen corresponding path program 1 times [2022-03-18 16:39:01,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:01,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782850136] [2022-03-18 16:39:01,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:01,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:01,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:01,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:01,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:01,848 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 16:39:01,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:01,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782850136] [2022-03-18 16:39:01,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782850136] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:39:01,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:39:01,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:39:01,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921253216] [2022-03-18 16:39:01,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:01,849 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:39:01,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:01,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:39:01,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:39:01,850 INFO L87 Difference]: Start difference. First operand 263 states and 395 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:04,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:04,452 INFO L93 Difference]: Finished difference Result 613 states and 933 transitions. [2022-03-18 16:39:04,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:39:04,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2022-03-18 16:39:04,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:04,454 INFO L225 Difference]: With dead ends: 613 [2022-03-18 16:39:04,454 INFO L226 Difference]: Without dead ends: 376 [2022-03-18 16:39:04,455 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 16:39:04,455 INFO L912 BasicCegarLoop]: 138 mSDtfsCounter, 127 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:04,456 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 394 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-18 16:39:04,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-03-18 16:39:04,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 285. [2022-03-18 16:39:04,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 280 states have (on average 1.55) internal successors, (434), 280 states have internal predecessors, (434), 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 16:39:04,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 438 transitions. [2022-03-18 16:39:04,462 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 438 transitions. Word has length 89 [2022-03-18 16:39:04,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:04,463 INFO L478 AbstractCegarLoop]: Abstraction has 285 states and 438 transitions. [2022-03-18 16:39:04,463 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:04,463 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 438 transitions. [2022-03-18 16:39:04,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-18 16:39:04,464 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:04,464 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:39:04,464 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-18 16:39:04,464 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:04,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:04,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1158638899, now seen corresponding path program 1 times [2022-03-18 16:39:04,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:04,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983974505] [2022-03-18 16:39:04,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:04,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:04,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:04,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:04,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:04,586 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 16:39:04,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:04,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983974505] [2022-03-18 16:39:04,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983974505] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:39:04,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:39:04,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:39:04,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569420030] [2022-03-18 16:39:04,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:04,587 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:39:04,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:04,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:39:04,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:39:04,587 INFO L87 Difference]: Start difference. First operand 285 states and 438 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 16:39:07,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:07,359 INFO L93 Difference]: Finished difference Result 653 states and 1009 transitions. [2022-03-18 16:39:07,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:39:07,360 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 117 [2022-03-18 16:39:07,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:07,362 INFO L225 Difference]: With dead ends: 653 [2022-03-18 16:39:07,362 INFO L226 Difference]: Without dead ends: 394 [2022-03-18 16:39:07,362 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 16:39:07,363 INFO L912 BasicCegarLoop]: 206 mSDtfsCounter, 95 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:07,363 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 537 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-18 16:39:07,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-03-18 16:39:07,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 319. [2022-03-18 16:39:07,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 314 states have (on average 1.5573248407643312) internal successors, (489), 314 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 16:39:07,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 493 transitions. [2022-03-18 16:39:07,370 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 493 transitions. Word has length 117 [2022-03-18 16:39:07,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:07,370 INFO L478 AbstractCegarLoop]: Abstraction has 319 states and 493 transitions. [2022-03-18 16:39:07,370 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 16:39:07,371 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 493 transitions. [2022-03-18 16:39:07,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-18 16:39:07,372 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:07,372 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:39:07,372 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-18 16:39:07,372 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:07,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:07,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1651265073, now seen corresponding path program 1 times [2022-03-18 16:39:07,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:07,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049992151] [2022-03-18 16:39:07,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:07,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:07,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:07,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:07,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:07,480 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-18 16:39:07,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:07,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049992151] [2022-03-18 16:39:07,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049992151] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:39:07,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:39:07,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:39:07,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545339638] [2022-03-18 16:39:07,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:07,481 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:39:07,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:07,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:39:07,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:39:07,482 INFO L87 Difference]: Start difference. First operand 319 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 16:39:09,777 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 16:39:10,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:10,192 INFO L93 Difference]: Finished difference Result 670 states and 1038 transitions. [2022-03-18 16:39:10,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:39:10,193 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 117 [2022-03-18 16:39:10,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:10,194 INFO L225 Difference]: With dead ends: 670 [2022-03-18 16:39:10,194 INFO L226 Difference]: Without dead ends: 377 [2022-03-18 16:39:10,195 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 16:39:10,195 INFO L912 BasicCegarLoop]: 256 mSDtfsCounter, 37 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:10,195 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 635 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-18 16:39:10,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-03-18 16:39:10,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 343. [2022-03-18 16:39:10,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 338 states have (on average 1.5562130177514792) internal successors, (526), 338 states have internal predecessors, (526), 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 16:39:10,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 530 transitions. [2022-03-18 16:39:10,203 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 530 transitions. Word has length 117 [2022-03-18 16:39:10,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:10,203 INFO L478 AbstractCegarLoop]: Abstraction has 343 states and 530 transitions. [2022-03-18 16:39:10,203 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 16:39:10,203 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 530 transitions. [2022-03-18 16:39:10,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-18 16:39:10,205 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:10,205 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:39:10,205 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-18 16:39:10,205 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:10,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:10,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1458638089, now seen corresponding path program 1 times [2022-03-18 16:39:10,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:10,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120339619] [2022-03-18 16:39:10,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:10,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:10,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:10,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:10,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:10,314 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-18 16:39:10,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:10,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120339619] [2022-03-18 16:39:10,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120339619] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:39:10,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:39:10,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:39:10,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877900617] [2022-03-18 16:39:10,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:10,315 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:39:10,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:10,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:39:10,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:39:10,315 INFO L87 Difference]: Start difference. First operand 343 states and 530 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:12,782 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:39:13,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:13,513 INFO L93 Difference]: Finished difference Result 667 states and 1040 transitions. [2022-03-18 16:39:13,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:39:13,514 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-18 16:39:13,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:13,515 INFO L225 Difference]: With dead ends: 667 [2022-03-18 16:39:13,515 INFO L226 Difference]: Without dead ends: 350 [2022-03-18 16:39:13,516 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 16:39:13,516 INFO L912 BasicCegarLoop]: 216 mSDtfsCounter, 30 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:13,517 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 555 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-18 16:39:13,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-03-18 16:39:13,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 343. [2022-03-18 16:39:13,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 338 states have (on average 1.5532544378698225) internal successors, (525), 338 states have internal predecessors, (525), 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 16:39:13,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 529 transitions. [2022-03-18 16:39:13,524 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 529 transitions. Word has length 122 [2022-03-18 16:39:13,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:13,524 INFO L478 AbstractCegarLoop]: Abstraction has 343 states and 529 transitions. [2022-03-18 16:39:13,524 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:13,524 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 529 transitions. [2022-03-18 16:39:13,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-18 16:39:13,526 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:13,526 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, 1, 1] [2022-03-18 16:39:13,526 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-18 16:39:13,526 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:13,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:13,526 INFO L85 PathProgramCache]: Analyzing trace with hash 625950851, now seen corresponding path program 1 times [2022-03-18 16:39:13,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:13,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116592198] [2022-03-18 16:39:13,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:13,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:13,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:13,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:13,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:13,653 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 16:39:13,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:13,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116592198] [2022-03-18 16:39:13,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116592198] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:39:13,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:39:13,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:39:13,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986373069] [2022-03-18 16:39:13,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:13,654 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:39:13,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:13,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:39:13,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:39:13,655 INFO L87 Difference]: Start difference. First operand 343 states and 529 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states 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 16:39:15,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:15,768 INFO L93 Difference]: Finished difference Result 791 states and 1225 transitions. [2022-03-18 16:39:15,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:39:15,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 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 123 [2022-03-18 16:39:15,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:15,770 INFO L225 Difference]: With dead ends: 791 [2022-03-18 16:39:15,770 INFO L226 Difference]: Without dead ends: 474 [2022-03-18 16:39:15,771 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 16:39:15,771 INFO L912 BasicCegarLoop]: 128 mSDtfsCounter, 129 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:15,772 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 374 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-18 16:39:15,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-03-18 16:39:15,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 380. [2022-03-18 16:39:15,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 375 states have (on average 1.5653333333333332) internal successors, (587), 375 states have internal predecessors, (587), 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 16:39:15,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 591 transitions. [2022-03-18 16:39:15,780 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 591 transitions. Word has length 123 [2022-03-18 16:39:15,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:15,780 INFO L478 AbstractCegarLoop]: Abstraction has 380 states and 591 transitions. [2022-03-18 16:39:15,780 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states 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 16:39:15,780 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 591 transitions. [2022-03-18 16:39:15,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-18 16:39:15,781 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:15,782 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, 1, 1] [2022-03-18 16:39:15,782 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-18 16:39:15,782 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:15,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:15,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1960942629, now seen corresponding path program 1 times [2022-03-18 16:39:15,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:15,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725315941] [2022-03-18 16:39:15,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:15,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:15,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:15,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:15,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:15,889 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 16:39:15,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:15,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725315941] [2022-03-18 16:39:15,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725315941] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:39:15,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:39:15,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:39:15,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596566741] [2022-03-18 16:39:15,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:15,889 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:39:15,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:15,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:39:15,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:39:15,890 INFO L87 Difference]: Start difference. First operand 380 states and 591 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 16:39:17,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:17,420 INFO L93 Difference]: Finished difference Result 806 states and 1254 transitions. [2022-03-18 16:39:17,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:39:17,420 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 124 [2022-03-18 16:39:17,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:17,422 INFO L225 Difference]: With dead ends: 806 [2022-03-18 16:39:17,422 INFO L226 Difference]: Without dead ends: 452 [2022-03-18 16:39:17,423 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 16:39:17,423 INFO L912 BasicCegarLoop]: 188 mSDtfsCounter, 84 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:17,424 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 501 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-18 16:39:17,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2022-03-18 16:39:17,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 386. [2022-03-18 16:39:17,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 381 states have (on average 1.5669291338582678) internal successors, (597), 381 states have internal predecessors, (597), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:17,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 601 transitions. [2022-03-18 16:39:17,432 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 601 transitions. Word has length 124 [2022-03-18 16:39:17,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:17,433 INFO L478 AbstractCegarLoop]: Abstraction has 386 states and 601 transitions. [2022-03-18 16:39:17,433 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 16:39:17,433 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 601 transitions. [2022-03-18 16:39:17,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-03-18 16:39:17,434 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:17,434 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:39:17,434 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-18 16:39:17,434 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:17,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:17,435 INFO L85 PathProgramCache]: Analyzing trace with hash -203127122, now seen corresponding path program 1 times [2022-03-18 16:39:17,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:17,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084119915] [2022-03-18 16:39:17,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:17,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:17,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:17,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:17,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:17,561 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 16:39:17,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:17,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084119915] [2022-03-18 16:39:17,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084119915] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:39:17,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:39:17,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:39:17,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604097685] [2022-03-18 16:39:17,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:17,562 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:39:17,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:17,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:39:17,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:39:17,562 INFO L87 Difference]: Start difference. First operand 386 states and 601 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:19,870 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 16:39:21,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:21,609 INFO L93 Difference]: Finished difference Result 810 states and 1261 transitions. [2022-03-18 16:39:21,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:39:21,609 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 130 [2022-03-18 16:39:21,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:21,611 INFO L225 Difference]: With dead ends: 810 [2022-03-18 16:39:21,611 INFO L226 Difference]: Without dead ends: 450 [2022-03-18 16:39:21,612 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 16:39:21,613 INFO L912 BasicCegarLoop]: 190 mSDtfsCounter, 105 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:21,613 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 503 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 515 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-03-18 16:39:21,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-03-18 16:39:21,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 386. [2022-03-18 16:39:21,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 381 states have (on average 1.5643044619422573) internal successors, (596), 381 states have internal predecessors, (596), 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 16:39:21,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 600 transitions. [2022-03-18 16:39:21,621 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 600 transitions. Word has length 130 [2022-03-18 16:39:21,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:21,621 INFO L478 AbstractCegarLoop]: Abstraction has 386 states and 600 transitions. [2022-03-18 16:39:21,622 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:21,622 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 600 transitions. [2022-03-18 16:39:21,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-03-18 16:39:21,623 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:21,623 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:39:21,623 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-18 16:39:21,623 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:21,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:21,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1363630828, now seen corresponding path program 1 times [2022-03-18 16:39:21,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:21,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54265946] [2022-03-18 16:39:21,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:21,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:21,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:21,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:21,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:21,735 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 16:39:21,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:21,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54265946] [2022-03-18 16:39:21,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54265946] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:39:21,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:39:21,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:39:21,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973846866] [2022-03-18 16:39:21,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:21,736 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:39:21,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:21,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:39:21,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:39:21,737 INFO L87 Difference]: Start difference. First operand 386 states and 600 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:24,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:24,158 INFO L93 Difference]: Finished difference Result 835 states and 1297 transitions. [2022-03-18 16:39:24,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:39:24,158 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 130 [2022-03-18 16:39:24,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:24,160 INFO L225 Difference]: With dead ends: 835 [2022-03-18 16:39:24,160 INFO L226 Difference]: Without dead ends: 475 [2022-03-18 16:39:24,160 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 16:39:24,161 INFO L912 BasicCegarLoop]: 130 mSDtfsCounter, 150 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:24,161 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 378 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:39:24,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2022-03-18 16:39:24,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 386. [2022-03-18 16:39:24,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 381 states have (on average 1.5538057742782152) internal successors, (592), 381 states have internal predecessors, (592), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:24,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 596 transitions. [2022-03-18 16:39:24,169 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 596 transitions. Word has length 130 [2022-03-18 16:39:24,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:24,169 INFO L478 AbstractCegarLoop]: Abstraction has 386 states and 596 transitions. [2022-03-18 16:39:24,169 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:39:24,170 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 596 transitions. [2022-03-18 16:39:24,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-18 16:39:24,171 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:24,171 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 16:39:24,171 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-18 16:39:24,171 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:24,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:24,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1208648607, now seen corresponding path program 1 times [2022-03-18 16:39:24,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:24,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146992785] [2022-03-18 16:39:24,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:24,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:24,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:24,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:24,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:24,284 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 16:39:24,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:24,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146992785] [2022-03-18 16:39:24,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146992785] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:39:24,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:39:24,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:39:24,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821700321] [2022-03-18 16:39:24,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:24,285 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:39:24,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:24,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:39:24,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:39:24,285 INFO L87 Difference]: Start difference. First operand 386 states and 596 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 16:39:25,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:25,926 INFO L93 Difference]: Finished difference Result 803 states and 1240 transitions. [2022-03-18 16:39:25,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:39:25,926 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 16:39:25,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:25,927 INFO L225 Difference]: With dead ends: 803 [2022-03-18 16:39:25,927 INFO L226 Difference]: Without dead ends: 443 [2022-03-18 16:39:25,928 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 16:39:25,929 INFO L912 BasicCegarLoop]: 193 mSDtfsCounter, 69 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:25,929 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 511 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-18 16:39:25,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-03-18 16:39:25,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 389. [2022-03-18 16:39:25,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 384 states have (on average 1.5494791666666667) internal successors, (595), 384 states have internal predecessors, (595), 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 16:39:25,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 599 transitions. [2022-03-18 16:39:25,937 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 599 transitions. Word has length 131 [2022-03-18 16:39:25,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:25,937 INFO L478 AbstractCegarLoop]: Abstraction has 389 states and 599 transitions. [2022-03-18 16:39:25,937 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 16:39:25,937 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 599 transitions. [2022-03-18 16:39:25,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-18 16:39:25,939 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:25,939 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:39:25,939 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-18 16:39:25,939 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:25,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:25,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1448540058, now seen corresponding path program 1 times [2022-03-18 16:39:25,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:25,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570903429] [2022-03-18 16:39:25,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:25,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:26,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:26,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:26,081 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 16:39:26,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:26,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570903429] [2022-03-18 16:39:26,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570903429] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:39:26,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:39:26,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:39:26,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725624027] [2022-03-18 16:39:26,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:26,081 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:39:26,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:26,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:39:26,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:39:26,082 INFO L87 Difference]: Start difference. First operand 389 states and 599 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 16:39:27,808 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:39:29,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:29,657 INFO L93 Difference]: Finished difference Result 796 states and 1229 transitions. [2022-03-18 16:39:29,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:39:29,657 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 134 [2022-03-18 16:39:29,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:29,659 INFO L225 Difference]: With dead ends: 796 [2022-03-18 16:39:29,659 INFO L226 Difference]: Without dead ends: 433 [2022-03-18 16:39:29,660 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 16:39:29,660 INFO L912 BasicCegarLoop]: 195 mSDtfsCounter, 94 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:29,660 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 513 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-18 16:39:29,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2022-03-18 16:39:29,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 389. [2022-03-18 16:39:29,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 384 states have (on average 1.546875) internal successors, (594), 384 states have internal predecessors, (594), 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 16:39:29,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 598 transitions. [2022-03-18 16:39:29,668 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 598 transitions. Word has length 134 [2022-03-18 16:39:29,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:29,669 INFO L478 AbstractCegarLoop]: Abstraction has 389 states and 598 transitions. [2022-03-18 16:39:29,669 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 16:39:29,669 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 598 transitions. [2022-03-18 16:39:29,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-18 16:39:29,670 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:29,670 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:39:29,670 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-18 16:39:29,671 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:29,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:29,671 INFO L85 PathProgramCache]: Analyzing trace with hash 887852452, now seen corresponding path program 1 times [2022-03-18 16:39:29,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:29,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552908883] [2022-03-18 16:39:29,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:29,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:29,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:29,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:29,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:29,783 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 16:39:29,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:29,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552908883] [2022-03-18 16:39:29,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552908883] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:39:29,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:39:29,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:39:29,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994605438] [2022-03-18 16:39:29,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:29,784 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:39:29,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:29,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:39:29,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:39:29,785 INFO L87 Difference]: Start difference. First operand 389 states and 598 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 16:39:31,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:31,607 INFO L93 Difference]: Finished difference Result 833 states and 1282 transitions. [2022-03-18 16:39:31,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:39:31,608 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 134 [2022-03-18 16:39:31,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:31,609 INFO L225 Difference]: With dead ends: 833 [2022-03-18 16:39:31,609 INFO L226 Difference]: Without dead ends: 470 [2022-03-18 16:39:31,610 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 16:39:31,610 INFO L912 BasicCegarLoop]: 139 mSDtfsCounter, 151 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:31,611 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 396 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-18 16:39:31,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2022-03-18 16:39:31,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 389. [2022-03-18 16:39:31,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 384 states have (on average 1.5338541666666667) internal successors, (589), 384 states have internal predecessors, (589), 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 16:39:31,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 593 transitions. [2022-03-18 16:39:31,619 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 593 transitions. Word has length 134 [2022-03-18 16:39:31,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:31,619 INFO L478 AbstractCegarLoop]: Abstraction has 389 states and 593 transitions. [2022-03-18 16:39:31,619 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 16:39:31,619 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 593 transitions. [2022-03-18 16:39:31,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-03-18 16:39:31,620 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:31,621 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] [2022-03-18 16:39:31,621 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-18 16:39:31,621 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:31,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:31,621 INFO L85 PathProgramCache]: Analyzing trace with hash -706262769, now seen corresponding path program 1 times [2022-03-18 16:39:31,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:31,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641481943] [2022-03-18 16:39:31,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:31,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:31,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:31,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:31,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:31,753 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 16:39:31,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:31,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641481943] [2022-03-18 16:39:31,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641481943] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:39:31,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:39:31,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:39:31,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219988915] [2022-03-18 16:39:31,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:31,754 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:39:31,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:31,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:39:31,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:39:31,755 INFO L87 Difference]: Start difference. First operand 389 states and 593 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states 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 16:39:34,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:34,513 INFO L93 Difference]: Finished difference Result 833 states and 1272 transitions. [2022-03-18 16:39:34,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:39:34,513 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 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 139 [2022-03-18 16:39:34,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:34,515 INFO L225 Difference]: With dead ends: 833 [2022-03-18 16:39:34,515 INFO L226 Difference]: Without dead ends: 470 [2022-03-18 16:39:34,515 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 16:39:34,516 INFO L912 BasicCegarLoop]: 146 mSDtfsCounter, 140 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:34,516 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 410 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-18 16:39:34,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2022-03-18 16:39:34,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 389. [2022-03-18 16:39:34,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 384 states have (on average 1.5234375) internal successors, (585), 384 states have internal predecessors, (585), 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 16:39:34,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 589 transitions. [2022-03-18 16:39:34,524 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 589 transitions. Word has length 139 [2022-03-18 16:39:34,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:34,524 INFO L478 AbstractCegarLoop]: Abstraction has 389 states and 589 transitions. [2022-03-18 16:39:34,524 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states 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 16:39:34,524 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 589 transitions. [2022-03-18 16:39:34,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-03-18 16:39:34,526 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:34,526 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] [2022-03-18 16:39:34,526 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-18 16:39:34,526 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:34,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:34,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1648122513, now seen corresponding path program 1 times [2022-03-18 16:39:34,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:34,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709604299] [2022-03-18 16:39:34,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:34,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:34,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:34,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:34,657 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 16:39:34,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:34,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709604299] [2022-03-18 16:39:34,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709604299] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:39:34,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:39:34,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:39:34,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434438215] [2022-03-18 16:39:34,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:34,658 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:39:34,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:34,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:39:34,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:39:34,658 INFO L87 Difference]: Start difference. First operand 389 states and 589 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states 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 16:39:37,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:37,332 INFO L93 Difference]: Finished difference Result 909 states and 1388 transitions. [2022-03-18 16:39:37,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:39:37,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 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 139 [2022-03-18 16:39:37,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:37,335 INFO L225 Difference]: With dead ends: 909 [2022-03-18 16:39:37,335 INFO L226 Difference]: Without dead ends: 546 [2022-03-18 16:39:37,336 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 16:39:37,336 INFO L912 BasicCegarLoop]: 145 mSDtfsCounter, 131 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:37,336 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 408 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-18 16:39:37,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2022-03-18 16:39:37,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 453. [2022-03-18 16:39:37,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 448 states have (on average 1.5267857142857142) internal successors, (684), 448 states have internal predecessors, (684), 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 16:39:37,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 688 transitions. [2022-03-18 16:39:37,345 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 688 transitions. Word has length 139 [2022-03-18 16:39:37,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:37,345 INFO L478 AbstractCegarLoop]: Abstraction has 453 states and 688 transitions. [2022-03-18 16:39:37,346 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states 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 16:39:37,346 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 688 transitions. [2022-03-18 16:39:37,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-18 16:39:37,347 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:37,347 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:39:37,347 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-18 16:39:37,347 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:37,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:37,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1181012203, now seen corresponding path program 1 times [2022-03-18 16:39:37,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:37,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778610831] [2022-03-18 16:39:37,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:37,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:37,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:37,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:37,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:37,457 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-18 16:39:37,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:37,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778610831] [2022-03-18 16:39:37,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778610831] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:39:37,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:39:37,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:39:37,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581424806] [2022-03-18 16:39:37,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:37,458 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:39:37,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:37,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:39:37,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:39:37,459 INFO L87 Difference]: Start difference. First operand 453 states and 688 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 16:39:39,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:39,745 INFO L93 Difference]: Finished difference Result 951 states and 1450 transitions. [2022-03-18 16:39:39,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:39:39,746 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 144 [2022-03-18 16:39:39,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:39,748 INFO L225 Difference]: With dead ends: 951 [2022-03-18 16:39:39,748 INFO L226 Difference]: Without dead ends: 524 [2022-03-18 16:39:39,748 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 16:39:39,749 INFO L912 BasicCegarLoop]: 149 mSDtfsCounter, 147 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:39,749 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 416 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:39:39,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2022-03-18 16:39:39,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 453. [2022-03-18 16:39:39,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 448 states have (on average 1.5089285714285714) internal successors, (676), 448 states have internal predecessors, (676), 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 16:39:39,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 680 transitions. [2022-03-18 16:39:39,758 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 680 transitions. Word has length 144 [2022-03-18 16:39:39,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:39,758 INFO L478 AbstractCegarLoop]: Abstraction has 453 states and 680 transitions. [2022-03-18 16:39:39,758 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 16:39:39,758 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 680 transitions. [2022-03-18 16:39:39,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-18 16:39:39,760 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:39,760 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, 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 16:39:39,760 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-18 16:39:39,760 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:39,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:39,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1259889173, now seen corresponding path program 1 times [2022-03-18 16:39:39,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:39,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384787142] [2022-03-18 16:39:39,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:39,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:39,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:39,873 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 16:39:39,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:39,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384787142] [2022-03-18 16:39:39,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384787142] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:39:39,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:39:39,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:39:39,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102271733] [2022-03-18 16:39:39,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:39,874 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:39:39,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:39,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:39:39,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:39:39,875 INFO L87 Difference]: Start difference. First operand 453 states and 680 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states 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 16:39:41,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:41,500 INFO L93 Difference]: Finished difference Result 991 states and 1496 transitions. [2022-03-18 16:39:41,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:39:41,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 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 144 [2022-03-18 16:39:41,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:41,502 INFO L225 Difference]: With dead ends: 991 [2022-03-18 16:39:41,502 INFO L226 Difference]: Without dead ends: 564 [2022-03-18 16:39:41,503 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 16:39:41,503 INFO L912 BasicCegarLoop]: 149 mSDtfsCounter, 127 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:41,504 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 416 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-18 16:39:41,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2022-03-18 16:39:41,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 483. [2022-03-18 16:39:41,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.497907949790795) internal successors, (716), 478 states have internal predecessors, (716), 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 16:39:41,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 720 transitions. [2022-03-18 16:39:41,513 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 720 transitions. Word has length 144 [2022-03-18 16:39:41,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:41,513 INFO L478 AbstractCegarLoop]: Abstraction has 483 states and 720 transitions. [2022-03-18 16:39:41,513 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states 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 16:39:41,513 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 720 transitions. [2022-03-18 16:39:41,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-18 16:39:41,515 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:41,515 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, 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 16:39:41,515 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-18 16:39:41,515 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:41,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:41,516 INFO L85 PathProgramCache]: Analyzing trace with hash -65949138, now seen corresponding path program 1 times [2022-03-18 16:39:41,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:41,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956349477] [2022-03-18 16:39:41,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:41,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:41,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:41,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:41,641 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 16:39:41,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:41,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956349477] [2022-03-18 16:39:41,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956349477] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:39:41,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:39:41,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:39:41,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198144635] [2022-03-18 16:39:41,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:41,643 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:39:41,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:41,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:39:41,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:39:41,644 INFO L87 Difference]: Start difference. First operand 483 states and 720 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states 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 16:39:43,154 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 16:39:43,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:43,994 INFO L93 Difference]: Finished difference Result 972 states and 1457 transitions. [2022-03-18 16:39:43,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:39:43,994 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 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 145 [2022-03-18 16:39:43,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:43,996 INFO L225 Difference]: With dead ends: 972 [2022-03-18 16:39:43,996 INFO L226 Difference]: Without dead ends: 515 [2022-03-18 16:39:43,996 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 16:39:43,997 INFO L912 BasicCegarLoop]: 210 mSDtfsCounter, 66 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:43,997 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 545 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 16:39:43,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2022-03-18 16:39:44,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 483. [2022-03-18 16:39:44,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.49581589958159) internal successors, (715), 478 states have internal predecessors, (715), 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 16:39:44,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 719 transitions. [2022-03-18 16:39:44,006 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 719 transitions. Word has length 145 [2022-03-18 16:39:44,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:44,007 INFO L478 AbstractCegarLoop]: Abstraction has 483 states and 719 transitions. [2022-03-18 16:39:44,007 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states 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 16:39:44,007 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 719 transitions. [2022-03-18 16:39:44,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-18 16:39:44,008 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:44,008 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, 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 16:39:44,008 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-18 16:39:44,008 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:44,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:44,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1145366633, now seen corresponding path program 1 times [2022-03-18 16:39:44,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:44,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923095482] [2022-03-18 16:39:44,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:44,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:44,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:44,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:44,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:44,115 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-18 16:39:44,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:44,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923095482] [2022-03-18 16:39:44,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923095482] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:39:44,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:39:44,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:39:44,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228176012] [2022-03-18 16:39:44,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:44,116 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:39:44,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:44,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:39:44,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:39:44,117 INFO L87 Difference]: Start difference. First operand 483 states and 719 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (3), 2 states 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 16:39:46,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:46,204 INFO L93 Difference]: Finished difference Result 1392 states and 2091 transitions. [2022-03-18 16:39:46,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:39:46,205 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (3), 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 146 [2022-03-18 16:39:46,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:46,207 INFO L225 Difference]: With dead ends: 1392 [2022-03-18 16:39:46,207 INFO L226 Difference]: Without dead ends: 935 [2022-03-18 16:39:46,208 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 16:39:46,208 INFO L912 BasicCegarLoop]: 248 mSDtfsCounter, 144 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:46,209 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 442 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-18 16:39:46,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2022-03-18 16:39:46,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 933. [2022-03-18 16:39:46,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 928 states have (on average 1.4892241379310345) internal successors, (1382), 928 states have internal predecessors, (1382), 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 16:39:46,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1386 transitions. [2022-03-18 16:39:46,225 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1386 transitions. Word has length 146 [2022-03-18 16:39:46,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:46,225 INFO L478 AbstractCegarLoop]: Abstraction has 933 states and 1386 transitions. [2022-03-18 16:39:46,225 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (3), 2 states 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 16:39:46,225 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1386 transitions. [2022-03-18 16:39:46,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-18 16:39:46,227 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:46,227 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, 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 16:39:46,227 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-18 16:39:46,228 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:46,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:46,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1777793365, now seen corresponding path program 1 times [2022-03-18 16:39:46,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:46,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257104199] [2022-03-18 16:39:46,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:46,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:46,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:46,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:46,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:46,342 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-03-18 16:39:46,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:46,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257104199] [2022-03-18 16:39:46,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257104199] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:39:46,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:39:46,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:39:46,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036621415] [2022-03-18 16:39:46,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:46,343 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:39:46,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:46,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:39:46,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:39:46,343 INFO L87 Difference]: Start difference. First operand 933 states and 1386 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states 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 16:39:49,929 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 16:39:50,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:50,870 INFO L93 Difference]: Finished difference Result 1919 states and 2854 transitions. [2022-03-18 16:39:50,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:39:50,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 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 146 [2022-03-18 16:39:50,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:50,873 INFO L225 Difference]: With dead ends: 1919 [2022-03-18 16:39:50,873 INFO L226 Difference]: Without dead ends: 1012 [2022-03-18 16:39:50,874 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 16:39:50,874 INFO L912 BasicCegarLoop]: 248 mSDtfsCounter, 29 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:50,875 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 619 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-18 16:39:50,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2022-03-18 16:39:50,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 985. [2022-03-18 16:39:50,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 980 states have (on average 1.4857142857142858) internal successors, (1456), 980 states have internal predecessors, (1456), 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 16:39:50,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1460 transitions. [2022-03-18 16:39:50,892 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1460 transitions. Word has length 146 [2022-03-18 16:39:50,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:50,892 INFO L478 AbstractCegarLoop]: Abstraction has 985 states and 1460 transitions. [2022-03-18 16:39:50,892 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states 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 16:39:50,892 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1460 transitions. [2022-03-18 16:39:50,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-18 16:39:50,894 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:50,894 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:39:50,895 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-18 16:39:50,895 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:50,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:50,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1615972872, now seen corresponding path program 1 times [2022-03-18 16:39:50,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:50,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088942358] [2022-03-18 16:39:50,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:50,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:50,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:51,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:51,022 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 16:39:51,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:51,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088942358] [2022-03-18 16:39:51,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088942358] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:39:51,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:39:51,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:39:51,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299066154] [2022-03-18 16:39:51,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:51,023 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:39:51,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:51,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:39:51,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:39:51,024 INFO L87 Difference]: Start difference. First operand 985 states and 1460 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 16:39:52,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:52,613 INFO L93 Difference]: Finished difference Result 2161 states and 3202 transitions. [2022-03-18 16:39:52,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:39:52,614 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 148 [2022-03-18 16:39:52,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:52,617 INFO L225 Difference]: With dead ends: 2161 [2022-03-18 16:39:52,617 INFO L226 Difference]: Without dead ends: 1202 [2022-03-18 16:39:52,618 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 16:39:52,619 INFO L912 BasicCegarLoop]: 149 mSDtfsCounter, 129 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:52,619 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 416 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-18 16:39:52,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2022-03-18 16:39:52,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 1041. [2022-03-18 16:39:52,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 1036 states have (on average 1.472972972972973) internal successors, (1526), 1036 states have internal predecessors, (1526), 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 16:39:52,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1530 transitions. [2022-03-18 16:39:52,637 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1530 transitions. Word has length 148 [2022-03-18 16:39:52,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:52,638 INFO L478 AbstractCegarLoop]: Abstraction has 1041 states and 1530 transitions. [2022-03-18 16:39:52,638 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 16:39:52,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1530 transitions. [2022-03-18 16:39:52,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-03-18 16:39:52,640 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:52,640 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 16:39:52,640 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-18 16:39:52,640 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:52,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:52,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1721347733, now seen corresponding path program 1 times [2022-03-18 16:39:52,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:52,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559285497] [2022-03-18 16:39:52,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:52,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:52,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:52,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:52,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:52,782 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 16:39:52,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:52,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559285497] [2022-03-18 16:39:52,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559285497] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:39:52,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:39:52,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:39:52,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834315470] [2022-03-18 16:39:52,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:52,783 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:39:52,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:52,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:39:52,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:39:52,784 INFO L87 Difference]: Start difference. First operand 1041 states and 1530 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states 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 16:39:55,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:55,047 INFO L93 Difference]: Finished difference Result 2193 states and 3220 transitions. [2022-03-18 16:39:55,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:39:55,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 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 149 [2022-03-18 16:39:55,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:55,051 INFO L225 Difference]: With dead ends: 2193 [2022-03-18 16:39:55,051 INFO L226 Difference]: Without dead ends: 1178 [2022-03-18 16:39:55,053 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 16:39:55,053 INFO L912 BasicCegarLoop]: 139 mSDtfsCounter, 128 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:55,053 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 396 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-18 16:39:55,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2022-03-18 16:39:55,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 1041. [2022-03-18 16:39:55,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 1036 states have (on average 1.4594594594594594) internal successors, (1512), 1036 states have internal predecessors, (1512), 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 16:39:55,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1516 transitions. [2022-03-18 16:39:55,072 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1516 transitions. Word has length 149 [2022-03-18 16:39:55,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:55,072 INFO L478 AbstractCegarLoop]: Abstraction has 1041 states and 1516 transitions. [2022-03-18 16:39:55,073 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states 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 16:39:55,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1516 transitions. [2022-03-18 16:39:55,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-03-18 16:39:55,075 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:55,075 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, 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 16:39:55,075 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-18 16:39:55,075 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:55,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:55,075 INFO L85 PathProgramCache]: Analyzing trace with hash -411292190, now seen corresponding path program 1 times [2022-03-18 16:39:55,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:55,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47508838] [2022-03-18 16:39:55,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:55,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:55,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:55,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:55,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:55,191 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-18 16:39:55,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:55,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47508838] [2022-03-18 16:39:55,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47508838] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:39:55,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:39:55,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:39:55,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628083174] [2022-03-18 16:39:55,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:55,192 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:39:55,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:55,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:39:55,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:39:55,193 INFO L87 Difference]: Start difference. First operand 1041 states and 1516 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 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 16:39:56,311 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 16:39:57,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:39:57,764 INFO L93 Difference]: Finished difference Result 2193 states and 3192 transitions. [2022-03-18 16:39:57,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:39:57,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 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 152 [2022-03-18 16:39:57,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:39:57,768 INFO L225 Difference]: With dead ends: 2193 [2022-03-18 16:39:57,768 INFO L226 Difference]: Without dead ends: 1178 [2022-03-18 16:39:57,769 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 16:39:57,770 INFO L912 BasicCegarLoop]: 139 mSDtfsCounter, 130 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-18 16:39:57,770 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 396 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-18 16:39:57,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2022-03-18 16:39:57,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 1041. [2022-03-18 16:39:57,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 1036 states have (on average 1.444015444015444) internal successors, (1496), 1036 states have internal predecessors, (1496), 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 16:39:57,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1500 transitions. [2022-03-18 16:39:57,788 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1500 transitions. Word has length 152 [2022-03-18 16:39:57,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:39:57,788 INFO L478 AbstractCegarLoop]: Abstraction has 1041 states and 1500 transitions. [2022-03-18 16:39:57,788 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 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 16:39:57,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1500 transitions. [2022-03-18 16:39:57,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-18 16:39:57,790 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:39:57,791 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, 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 16:39:57,791 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-18 16:39:57,791 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:39:57,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:39:57,791 INFO L85 PathProgramCache]: Analyzing trace with hash 843620453, now seen corresponding path program 1 times [2022-03-18 16:39:57,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:39:57,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759794083] [2022-03-18 16:39:57,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:39:57,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:39:57,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:57,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:39:57,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:39:57,911 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-18 16:39:57,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:39:57,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759794083] [2022-03-18 16:39:57,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759794083] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:39:57,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:39:57,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:39:57,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638495672] [2022-03-18 16:39:57,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:39:57,913 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:39:57,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:39:57,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:39:57,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:39:57,915 INFO L87 Difference]: Start difference. First operand 1041 states and 1500 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 16:40:00,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:40:00,386 INFO L93 Difference]: Finished difference Result 2099 states and 3025 transitions. [2022-03-18 16:40:00,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:40:00,387 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 153 [2022-03-18 16:40:00,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:40:00,389 INFO L225 Difference]: With dead ends: 2099 [2022-03-18 16:40:00,389 INFO L226 Difference]: Without dead ends: 1084 [2022-03-18 16:40:00,390 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 16:40:00,391 INFO L912 BasicCegarLoop]: 222 mSDtfsCounter, 56 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:40:00,391 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 569 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:40:00,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2022-03-18 16:40:00,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 1041. [2022-03-18 16:40:00,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 1036 states have (on average 1.442084942084942) internal successors, (1494), 1036 states have internal predecessors, (1494), 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 16:40:00,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1498 transitions. [2022-03-18 16:40:00,410 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1498 transitions. Word has length 153 [2022-03-18 16:40:00,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:40:00,410 INFO L478 AbstractCegarLoop]: Abstraction has 1041 states and 1498 transitions. [2022-03-18 16:40:00,410 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 16:40:00,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1498 transitions. [2022-03-18 16:40:00,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-03-18 16:40:00,412 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:40:00,412 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, 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 16:40:00,412 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-18 16:40:00,412 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:40:00,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:40:00,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1632047552, now seen corresponding path program 1 times [2022-03-18 16:40:00,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:40:00,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501574798] [2022-03-18 16:40:00,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:40:00,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:40:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:00,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:40:00,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:00,531 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-18 16:40:00,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:40:00,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501574798] [2022-03-18 16:40:00,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501574798] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:40:00,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:40:00,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:40:00,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686961705] [2022-03-18 16:40:00,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:40:00,532 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:40:00,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:40:00,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:40:00,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:40:00,532 INFO L87 Difference]: Start difference. First operand 1041 states and 1498 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 16:40:01,982 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 16:40:03,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:40:03,753 INFO L93 Difference]: Finished difference Result 2273 states and 3274 transitions. [2022-03-18 16:40:03,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:40:03,754 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 156 [2022-03-18 16:40:03,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:40:03,757 INFO L225 Difference]: With dead ends: 2273 [2022-03-18 16:40:03,757 INFO L226 Difference]: Without dead ends: 1258 [2022-03-18 16:40:03,758 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 16:40:03,758 INFO L912 BasicCegarLoop]: 139 mSDtfsCounter, 123 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:40:03,759 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 396 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-18 16:40:03,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2022-03-18 16:40:03,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 1107. [2022-03-18 16:40:03,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1107 states, 1102 states have (on average 1.4355716878402904) internal successors, (1582), 1102 states have internal predecessors, (1582), 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 16:40:03,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 1586 transitions. [2022-03-18 16:40:03,780 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 1586 transitions. Word has length 156 [2022-03-18 16:40:03,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:40:03,780 INFO L478 AbstractCegarLoop]: Abstraction has 1107 states and 1586 transitions. [2022-03-18 16:40:03,780 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 16:40:03,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 1586 transitions. [2022-03-18 16:40:03,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-03-18 16:40:03,782 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:40:03,782 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, 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 16:40:03,783 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-18 16:40:03,783 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:40:03,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:40:03,783 INFO L85 PathProgramCache]: Analyzing trace with hash 2007955217, now seen corresponding path program 1 times [2022-03-18 16:40:03,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:40:03,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041459724] [2022-03-18 16:40:03,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:40:03,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:40:03,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:03,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:40:03,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:03,914 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-18 16:40:03,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:40:03,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041459724] [2022-03-18 16:40:03,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041459724] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:40:03,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:40:03,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:40:03,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119806193] [2022-03-18 16:40:03,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:40:03,915 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:40:03,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:40:03,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:40:03,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:40:03,916 INFO L87 Difference]: Start difference. First operand 1107 states and 1586 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states 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 16:40:06,723 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 16:40:07,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:40:07,519 INFO L93 Difference]: Finished difference Result 2405 states and 3446 transitions. [2022-03-18 16:40:07,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:40:07,519 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 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 156 [2022-03-18 16:40:07,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:40:07,522 INFO L225 Difference]: With dead ends: 2405 [2022-03-18 16:40:07,522 INFO L226 Difference]: Without dead ends: 1324 [2022-03-18 16:40:07,524 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 16:40:07,524 INFO L912 BasicCegarLoop]: 139 mSDtfsCounter, 121 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-18 16:40:07,524 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 396 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-18 16:40:07,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2022-03-18 16:40:07,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 1177. [2022-03-18 16:40:07,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1177 states, 1172 states have (on average 1.4283276450511946) internal successors, (1674), 1172 states have internal predecessors, (1674), 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 16:40:07,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 1678 transitions. [2022-03-18 16:40:07,542 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 1678 transitions. Word has length 156 [2022-03-18 16:40:07,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:40:07,542 INFO L478 AbstractCegarLoop]: Abstraction has 1177 states and 1678 transitions. [2022-03-18 16:40:07,542 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states 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 16:40:07,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 1678 transitions. [2022-03-18 16:40:07,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-03-18 16:40:07,545 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:40:07,545 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, 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 16:40:07,545 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-18 16:40:07,545 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:40:07,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:40:07,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1104547800, now seen corresponding path program 1 times [2022-03-18 16:40:07,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:40:07,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291556593] [2022-03-18 16:40:07,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:40:07,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:40:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:07,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:40:07,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:07,663 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-18 16:40:07,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:40:07,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291556593] [2022-03-18 16:40:07,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291556593] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:40:07,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:40:07,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:40:07,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613252924] [2022-03-18 16:40:07,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:40:07,663 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:40:07,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:40:07,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:40:07,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:40:07,664 INFO L87 Difference]: Start difference. First operand 1177 states and 1678 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states 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 16:40:10,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:40:10,221 INFO L93 Difference]: Finished difference Result 2465 states and 3516 transitions. [2022-03-18 16:40:10,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:40:10,221 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 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 157 [2022-03-18 16:40:10,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:40:10,224 INFO L225 Difference]: With dead ends: 2465 [2022-03-18 16:40:10,224 INFO L226 Difference]: Without dead ends: 1314 [2022-03-18 16:40:10,225 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 16:40:10,226 INFO L912 BasicCegarLoop]: 140 mSDtfsCounter, 122 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-18 16:40:10,226 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 398 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-18 16:40:10,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2022-03-18 16:40:10,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1177. [2022-03-18 16:40:10,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1177 states, 1172 states have (on average 1.4197952218430034) internal successors, (1664), 1172 states have internal predecessors, (1664), 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 16:40:10,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 1668 transitions. [2022-03-18 16:40:10,244 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 1668 transitions. Word has length 157 [2022-03-18 16:40:10,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:40:10,244 INFO L478 AbstractCegarLoop]: Abstraction has 1177 states and 1668 transitions. [2022-03-18 16:40:10,244 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states 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 16:40:10,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 1668 transitions. [2022-03-18 16:40:10,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-03-18 16:40:10,246 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:40:10,246 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, 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 16:40:10,246 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-18 16:40:10,246 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:40:10,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:40:10,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1436608025, now seen corresponding path program 1 times [2022-03-18 16:40:10,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:40:10,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294952863] [2022-03-18 16:40:10,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:40:10,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:40:10,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:10,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:40:10,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:10,359 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-18 16:40:10,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:40:10,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294952863] [2022-03-18 16:40:10,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294952863] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:40:10,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:40:10,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:40:10,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972980426] [2022-03-18 16:40:10,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:40:10,360 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:40:10,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:40:10,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:40:10,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:40:10,361 INFO L87 Difference]: Start difference. First operand 1177 states and 1668 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states 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 16:40:12,210 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 16:40:13,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:40:13,605 INFO L93 Difference]: Finished difference Result 2353 states and 3338 transitions. [2022-03-18 16:40:13,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:40:13,605 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 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 157 [2022-03-18 16:40:13,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:40:13,608 INFO L225 Difference]: With dead ends: 2353 [2022-03-18 16:40:13,608 INFO L226 Difference]: Without dead ends: 1202 [2022-03-18 16:40:13,609 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 16:40:13,609 INFO L912 BasicCegarLoop]: 225 mSDtfsCounter, 33 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-18 16:40:13,610 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 575 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-18 16:40:13,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2022-03-18 16:40:13,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 1177. [2022-03-18 16:40:13,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1177 states, 1172 states have (on average 1.418088737201365) internal successors, (1662), 1172 states have internal predecessors, (1662), 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 16:40:13,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 1666 transitions. [2022-03-18 16:40:13,626 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 1666 transitions. Word has length 157 [2022-03-18 16:40:13,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:40:13,627 INFO L478 AbstractCegarLoop]: Abstraction has 1177 states and 1666 transitions. [2022-03-18 16:40:13,627 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states 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 16:40:13,627 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 1666 transitions. [2022-03-18 16:40:13,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-03-18 16:40:13,629 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:40:13,629 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, 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 16:40:13,629 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-18 16:40:13,629 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:40:13,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:40:13,629 INFO L85 PathProgramCache]: Analyzing trace with hash -56561933, now seen corresponding path program 1 times [2022-03-18 16:40:13,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:40:13,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154916516] [2022-03-18 16:40:13,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:40:13,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:40:13,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:13,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:40:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:13,727 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-03-18 16:40:13,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:40:13,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154916516] [2022-03-18 16:40:13,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154916516] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:40:13,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:40:13,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:40:13,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584856555] [2022-03-18 16:40:13,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:40:13,728 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:40:13,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:40:13,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:40:13,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:40:13,729 INFO L87 Difference]: Start difference. First operand 1177 states and 1666 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 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 16:40:15,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:40:15,199 INFO L93 Difference]: Finished difference Result 2355 states and 3339 transitions. [2022-03-18 16:40:15,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:40:15,199 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 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 165 [2022-03-18 16:40:15,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:40:15,202 INFO L225 Difference]: With dead ends: 2355 [2022-03-18 16:40:15,202 INFO L226 Difference]: Without dead ends: 1204 [2022-03-18 16:40:15,203 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 16:40:15,203 INFO L912 BasicCegarLoop]: 233 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-18 16:40:15,204 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 427 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-18 16:40:15,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1204 states. [2022-03-18 16:40:15,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1204 to 1204. [2022-03-18 16:40:15,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1204 states, 1199 states have (on average 1.41534612176814) internal successors, (1697), 1199 states have internal predecessors, (1697), 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 16:40:15,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1204 states to 1204 states and 1701 transitions. [2022-03-18 16:40:15,224 INFO L78 Accepts]: Start accepts. Automaton has 1204 states and 1701 transitions. Word has length 165 [2022-03-18 16:40:15,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:40:15,224 INFO L478 AbstractCegarLoop]: Abstraction has 1204 states and 1701 transitions. [2022-03-18 16:40:15,224 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 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 16:40:15,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1204 states and 1701 transitions. [2022-03-18 16:40:15,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-03-18 16:40:15,226 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:40:15,226 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, 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 16:40:15,226 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-18 16:40:15,226 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:40:15,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:40:15,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1844431755, now seen corresponding path program 1 times [2022-03-18 16:40:15,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:40:15,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059312941] [2022-03-18 16:40:15,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:40:15,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:40:15,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:15,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:40:15,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:15,329 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-03-18 16:40:15,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:40:15,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059312941] [2022-03-18 16:40:15,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059312941] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:40:15,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:40:15,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 16:40:15,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347390028] [2022-03-18 16:40:15,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:40:15,330 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 16:40:15,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:40:15,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 16:40:15,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 16:40:15,331 INFO L87 Difference]: Start difference. First operand 1204 states and 1701 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 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 16:40:16,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:40:16,983 INFO L93 Difference]: Finished difference Result 2384 states and 3375 transitions. [2022-03-18 16:40:16,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 16:40:16,984 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 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 165 [2022-03-18 16:40:16,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:40:16,987 INFO L225 Difference]: With dead ends: 2384 [2022-03-18 16:40:16,987 INFO L226 Difference]: Without dead ends: 1206 [2022-03-18 16:40:16,989 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 16:40:16,989 INFO L912 BasicCegarLoop]: 221 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-18 16:40:16,989 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 406 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-18 16:40:16,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2022-03-18 16:40:17,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1206. [2022-03-18 16:40:17,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 1201 states have (on average 1.414654454621149) internal successors, (1699), 1201 states have internal predecessors, (1699), 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 16:40:17,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 1703 transitions. [2022-03-18 16:40:17,011 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 1703 transitions. Word has length 165 [2022-03-18 16:40:17,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:40:17,011 INFO L478 AbstractCegarLoop]: Abstraction has 1206 states and 1703 transitions. [2022-03-18 16:40:17,011 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 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 16:40:17,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 1703 transitions. [2022-03-18 16:40:17,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-03-18 16:40:17,013 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:40:17,013 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, 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 16:40:17,013 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-18 16:40:17,013 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:40:17,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:40:17,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1693159867, now seen corresponding path program 1 times [2022-03-18 16:40:17,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:40:17,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631342433] [2022-03-18 16:40:17,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:40:17,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:40:17,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:17,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:40:17,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:17,129 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-18 16:40:17,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:40:17,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631342433] [2022-03-18 16:40:17,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631342433] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:40:17,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:40:17,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 16:40:17,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881062264] [2022-03-18 16:40:17,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:40:17,130 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 16:40:17,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:40:17,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 16:40:17,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 16:40:17,130 INFO L87 Difference]: Start difference. First operand 1206 states and 1703 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states 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 16:40:19,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:40:19,526 INFO L93 Difference]: Finished difference Result 2520 states and 3558 transitions. [2022-03-18 16:40:19,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 16:40:19,526 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 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 166 [2022-03-18 16:40:19,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:40:19,530 INFO L225 Difference]: With dead ends: 2520 [2022-03-18 16:40:19,530 INFO L226 Difference]: Without dead ends: 1342 [2022-03-18 16:40:19,532 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 16:40:19,532 INFO L912 BasicCegarLoop]: 246 mSDtfsCounter, 50 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 16:40:19,533 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 614 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 16:40:19,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2022-03-18 16:40:19,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1282. [2022-03-18 16:40:19,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1277 states have (on average 1.4119028974158183) internal successors, (1803), 1277 states have internal predecessors, (1803), 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 16:40:19,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1807 transitions. [2022-03-18 16:40:19,557 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1807 transitions. Word has length 166 [2022-03-18 16:40:19,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:40:19,557 INFO L478 AbstractCegarLoop]: Abstraction has 1282 states and 1807 transitions. [2022-03-18 16:40:19,557 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states 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 16:40:19,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1807 transitions. [2022-03-18 16:40:19,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-03-18 16:40:19,559 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:40:19,559 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, 1, 1, 1] [2022-03-18 16:40:19,560 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-18 16:40:19,560 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:40:19,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:40:19,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1911069330, now seen corresponding path program 1 times [2022-03-18 16:40:19,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:40:19,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896745730] [2022-03-18 16:40:19,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:40:19,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:40:19,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:19,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:40:19,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:19,900 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-03-18 16:40:19,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:40:19,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896745730] [2022-03-18 16:40:19,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896745730] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 16:40:19,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 16:40:19,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-18 16:40:19,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764523159] [2022-03-18 16:40:19,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 16:40:19,902 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-18 16:40:19,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 16:40:19,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-18 16:40:19,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-18 16:40:19,903 INFO L87 Difference]: Start difference. First operand 1282 states and 1807 transitions. Second operand has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:40:21,277 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 16:40:23,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 16:40:23,285 INFO L93 Difference]: Finished difference Result 2557 states and 3606 transitions. [2022-03-18 16:40:23,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-18 16:40:23,285 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-03-18 16:40:23,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 16:40:23,288 INFO L225 Difference]: With dead ends: 2557 [2022-03-18 16:40:23,288 INFO L226 Difference]: Without dead ends: 1282 [2022-03-18 16:40:23,290 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-18 16:40:23,291 INFO L912 BasicCegarLoop]: 219 mSDtfsCounter, 7 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-18 16:40:23,291 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 892 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-18 16:40:23,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1282 states. [2022-03-18 16:40:23,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1282 to 1282. [2022-03-18 16:40:23,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1277 states have (on average 1.4111198120595145) internal successors, (1802), 1277 states have internal predecessors, (1802), 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 16:40:23,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1806 transitions. [2022-03-18 16:40:23,313 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1806 transitions. Word has length 174 [2022-03-18 16:40:23,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 16:40:23,313 INFO L478 AbstractCegarLoop]: Abstraction has 1282 states and 1806 transitions. [2022-03-18 16:40:23,313 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 16:40:23,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1806 transitions. [2022-03-18 16:40:23,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-03-18 16:40:23,316 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 16:40:23,316 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, 1, 1, 1] [2022-03-18 16:40:23,316 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-18 16:40:23,316 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 16:40:23,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 16:40:23,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1221237840, now seen corresponding path program 1 times [2022-03-18 16:40:23,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 16:40:23,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143569195] [2022-03-18 16:40:23,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:40:23,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 16:40:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:24,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 16:40:24,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:24,205 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 14 proven. 169 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-03-18 16:40:24,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 16:40:24,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143569195] [2022-03-18 16:40:24,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143569195] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 16:40:24,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687521615] [2022-03-18 16:40:24,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 16:40:24,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 16:40:24,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 16:40:24,211 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 16:40:24,223 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 16:40:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 16:40:25,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 1149 conjuncts, 212 conjunts are in the unsatisfiable core [2022-03-18 16:40:25,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 16:40:25,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,515 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 17 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28153 treesize of output 23896 [2022-03-18 16:40:25,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 16:40:25,579 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 18 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10709 treesize of output 1662