/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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-5d317bd [2022-03-19 02:05:26,308 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-19 02:05:26,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-19 02:05:26,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-19 02:05:26,355 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-19 02:05:26,356 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-19 02:05:26,357 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-19 02:05:26,358 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-19 02:05:26,359 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-19 02:05:26,360 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-19 02:05:26,360 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-19 02:05:26,361 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-19 02:05:26,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-19 02:05:26,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-19 02:05:26,362 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-19 02:05:26,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-19 02:05:26,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-19 02:05:26,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-19 02:05:26,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-19 02:05:26,366 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-19 02:05:26,367 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-19 02:05:26,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-19 02:05:26,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-19 02:05:26,372 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-19 02:05:26,373 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-19 02:05:26,374 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-19 02:05:26,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-19 02:05:26,380 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-19 02:05:26,381 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-19 02:05:26,382 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-03-19 02:05:26,406 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-19 02:05:26,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-19 02:05:26,408 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-19 02:05:26,408 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-19 02:05:26,408 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-19 02:05:26,409 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-19 02:05:26,409 INFO L138 SettingsManager]: * Use SBE=true [2022-03-19 02:05:26,409 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-19 02:05:26,409 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-19 02:05:26,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-19 02:05:26,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-19 02:05:26,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-19 02:05:26,410 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-19 02:05:26,410 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-19 02:05:26,410 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-19 02:05:26,410 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-19 02:05:26,410 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-19 02:05:26,410 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-19 02:05:26,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-19 02:05:26,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 02:05:26,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-19 02:05:26,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-19 02:05:26,411 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-19 02:05:26,411 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-19 02:05:26,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-19 02:05:26,411 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-19 02:05:26,411 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-03-19 02:05:26,411 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-03-19 02:05:26,412 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-19 02:05:26,412 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-19 02:05:26,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-19 02:05:26,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-19 02:05:26,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-19 02:05:26,637 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-19 02:05:26,638 INFO L275 PluginConnector]: CDTParser initialized [2022-03-19 02:05:26,639 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-1.c [2022-03-19 02:05:26,690 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da8a78174/432def1ab2914d54a3488ce1eb8e7ead/FLAGee271f5a7 [2022-03-19 02:05:27,111 INFO L306 CDTParser]: Found 1 translation units. [2022-03-19 02:05:27,112 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-1.c [2022-03-19 02:05:27,132 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da8a78174/432def1ab2914d54a3488ce1eb8e7ead/FLAGee271f5a7 [2022-03-19 02:05:27,141 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da8a78174/432def1ab2914d54a3488ce1eb8e7ead [2022-03-19 02:05:27,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-19 02:05:27,144 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-19 02:05:27,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-19 02:05:27,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-19 02:05:27,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-19 02:05:27,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 02:05:27" (1/1) ... [2022-03-19 02:05:27,150 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dcc86e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:05:27, skipping insertion in model container [2022-03-19 02:05:27,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 02:05:27" (1/1) ... [2022-03-19 02:05:27,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-19 02:05:27,215 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-19 02:05:27,499 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.16.i.cil-1.c[77378,77391] [2022-03-19 02:05:27,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 02:05:27,518 INFO L203 MainTranslator]: Completed pre-run [2022-03-19 02:05:27,608 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.16.i.cil-1.c[77378,77391] [2022-03-19 02:05:27,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 02:05:27,622 INFO L208 MainTranslator]: Completed translation [2022-03-19 02:05:27,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:05:27 WrapperNode [2022-03-19 02:05:27,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-19 02:05:27,623 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-19 02:05:27,623 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-19 02:05:27,623 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-19 02:05:27,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:05:27" (1/1) ... [2022-03-19 02:05:27,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:05:27" (1/1) ... [2022-03-19 02:05:27,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:05:27" (1/1) ... [2022-03-19 02:05:27,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:05:27" (1/1) ... [2022-03-19 02:05:27,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:05:27" (1/1) ... [2022-03-19 02:05:27,707 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:05:27" (1/1) ... [2022-03-19 02:05:27,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:05:27" (1/1) ... [2022-03-19 02:05:27,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-19 02:05:27,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-19 02:05:27,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-19 02:05:27,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-19 02:05:27,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:05:27" (1/1) ... [2022-03-19 02:05:27,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 02:05:27,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:05:27,766 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-19 02:05:27,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-19 02:05:27,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-19 02:05:27,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-19 02:05:27,800 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-19 02:05:27,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-19 02:05:27,801 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-19 02:05:27,801 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-19 02:05:27,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-19 02:05:27,802 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-19 02:05:27,802 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-19 02:05:27,802 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-19 02:05:27,802 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-19 02:05:27,802 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-19 02:05:27,802 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-19 02:05:27,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-19 02:05:27,802 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-19 02:05:27,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-19 02:05:27,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-19 02:05:27,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-19 02:05:27,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-19 02:05:27,803 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-19 02:05:27,803 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-19 02:05:27,803 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-19 02:05:27,803 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-19 02:05:27,803 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-19 02:05:27,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-19 02:05:27,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-19 02:05:27,803 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-19 02:05:27,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-19 02:05:27,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-19 02:05:27,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-19 02:05:27,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-19 02:05:27,804 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-19 02:05:27,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-19 02:05:27,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-19 02:05:27,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-19 02:05:27,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-19 02:05:27,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-19 02:05:27,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-19 02:05:27,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-19 02:05:27,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-19 02:05:27,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-19 02:05:27,928 INFO L234 CfgBuilder]: Building ICFG [2022-03-19 02:05:27,930 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-19 02:05:28,956 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-19 02:05:29,322 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-19 02:05:29,322 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-19 02:05:29,331 INFO L275 CfgBuilder]: Performing block encoding [2022-03-19 02:05:29,338 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-19 02:05:29,338 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-19 02:05:29,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 02:05:29 BoogieIcfgContainer [2022-03-19 02:05:29,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-19 02:05:29,341 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-19 02:05:29,341 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-19 02:05:29,342 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-19 02:05:29,344 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 02:05:29" (1/1) ... [2022-03-19 02:05:29,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 19.03 02:05:29 BasicIcfg [2022-03-19 02:05:29,387 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-19 02:05:29,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-19 02:05:29,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-19 02:05:29,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-19 02:05:29,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.03 02:05:27" (1/4) ... [2022-03-19 02:05:29,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bff16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 02:05:29, skipping insertion in model container [2022-03-19 02:05:29,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:05:27" (2/4) ... [2022-03-19 02:05:29,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bff16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 02:05:29, skipping insertion in model container [2022-03-19 02:05:29,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 02:05:29" (3/4) ... [2022-03-19 02:05:29,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bff16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.03 02:05:29, skipping insertion in model container [2022-03-19 02:05:29,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 19.03 02:05:29" (4/4) ... [2022-03-19 02:05:29,395 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.16.i.cil-1.cqvasr [2022-03-19 02:05:29,401 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-19 02:05:29,401 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-19 02:05:29,441 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-19 02:05:29,446 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=FINITE_AUTOMATA, 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 [2022-03-19 02:05:29,447 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-19 02:05:29,464 INFO L276 IsEmpty]: Start isEmpty. Operand has 166 states, 158 states have (on average 1.7215189873417722) internal successors, (272), 159 states have internal predecessors, (272), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-19 02:05:29,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-19 02:05:29,469 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:05:29,470 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] [2022-03-19 02:05:29,470 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:05:29,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:05:29,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1778359795, now seen corresponding path program 1 times [2022-03-19 02:05:29,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:05:29,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840183228] [2022-03-19 02:05:29,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:05:29,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:05:29,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:29,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:05:29,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:29,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:05:29,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:05:29,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840183228] [2022-03-19 02:05:29,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840183228] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:05:29,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:05:29,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:05:29,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818408967] [2022-03-19 02:05:29,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:05:29,874 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:05:29,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:05:29,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:05:29,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:05:29,896 INFO L87 Difference]: Start difference. First operand has 166 states, 158 states have (on average 1.7215189873417722) internal successors, (272), 159 states have internal predecessors, (272), 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 9.2) 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) [2022-03-19 02:05:33,278 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 [] [2022-03-19 02:05:34,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:05:34,207 INFO L93 Difference]: Finished difference Result 350 states and 592 transitions. [2022-03-19 02:05:34,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:05:34,210 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 [2022-03-19 02:05:34,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:05:34,216 INFO L225 Difference]: With dead ends: 350 [2022-03-19 02:05:34,216 INFO L226 Difference]: Without dead ends: 178 [2022-03-19 02:05:34,218 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:05:34,220 INFO L912 BasicCegarLoop]: 245 mSDtfsCounter, 34 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-19 02:05:34,221 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 655 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-19 02:05:34,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-03-19 02:05:34,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 161. [2022-03-19 02:05:34,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 156 states have (on average 1.5769230769230769) internal successors, (246), 156 states have internal predecessors, (246), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:34,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 250 transitions. [2022-03-19 02:05:34,255 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 250 transitions. Word has length 50 [2022-03-19 02:05:34,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:05:34,255 INFO L478 AbstractCegarLoop]: Abstraction has 161 states and 250 transitions. [2022-03-19 02:05:34,255 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) [2022-03-19 02:05:34,255 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 250 transitions. [2022-03-19 02:05:34,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-19 02:05:34,257 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:05:34,257 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] [2022-03-19 02:05:34,257 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-19 02:05:34,257 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:05:34,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:05:34,258 INFO L85 PathProgramCache]: Analyzing trace with hash 309742957, now seen corresponding path program 1 times [2022-03-19 02:05:34,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:05:34,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666506852] [2022-03-19 02:05:34,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:05:34,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:05:34,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:34,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:05:34,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:34,485 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:05:34,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:05:34,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666506852] [2022-03-19 02:05:34,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666506852] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:05:34,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:05:34,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:05:34,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273612191] [2022-03-19 02:05:34,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:05:34,486 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:05:34,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:05:34,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:05:34,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:05:34,487 INFO L87 Difference]: Start difference. First operand 161 states and 250 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) [2022-03-19 02:05:37,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:05:37,095 INFO L93 Difference]: Finished difference Result 421 states and 660 transitions. [2022-03-19 02:05:37,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:05:37,096 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 [2022-03-19 02:05:37,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:05:37,098 INFO L225 Difference]: With dead ends: 421 [2022-03-19 02:05:37,098 INFO L226 Difference]: Without dead ends: 286 [2022-03-19 02:05:37,098 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:05:37,101 INFO L912 BasicCegarLoop]: 291 mSDtfsCounter, 159 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-19 02:05:37,105 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 706 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-19 02:05:37,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-03-19 02:05:37,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 177. [2022-03-19 02:05:37,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 172 states have (on average 1.5755813953488371) internal successors, (271), 172 states have internal predecessors, (271), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:37,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 275 transitions. [2022-03-19 02:05:37,122 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 275 transitions. Word has length 63 [2022-03-19 02:05:37,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:05:37,122 INFO L478 AbstractCegarLoop]: Abstraction has 177 states and 275 transitions. [2022-03-19 02:05:37,122 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) [2022-03-19 02:05:37,122 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 275 transitions. [2022-03-19 02:05:37,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-19 02:05:37,124 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:05:37,124 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] [2022-03-19 02:05:37,124 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-19 02:05:37,124 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:05:37,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:05:37,125 INFO L85 PathProgramCache]: Analyzing trace with hash 98378695, now seen corresponding path program 1 times [2022-03-19 02:05:37,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:05:37,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462564665] [2022-03-19 02:05:37,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:05:37,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:05:37,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:37,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:05:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:37,258 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:05:37,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:05:37,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462564665] [2022-03-19 02:05:37,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462564665] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:05:37,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:05:37,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:05:37,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788851018] [2022-03-19 02:05:37,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:05:37,259 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:05:37,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:05:37,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:05:37,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:05:37,260 INFO L87 Difference]: Start difference. First operand 177 states and 275 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) [2022-03-19 02:05:39,273 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:05:39,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:05:39,659 INFO L93 Difference]: Finished difference Result 344 states and 533 transitions. [2022-03-19 02:05:39,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:05:39,659 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 [2022-03-19 02:05:39,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:05:39,660 INFO L225 Difference]: With dead ends: 344 [2022-03-19 02:05:39,661 INFO L226 Difference]: Without dead ends: 193 [2022-03-19 02:05:39,661 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:05:39,662 INFO L912 BasicCegarLoop]: 204 mSDtfsCounter, 28 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:05:39,662 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 533 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 374 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 02:05:39,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-03-19 02:05:39,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 177. [2022-03-19 02:05:39,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 172 states have (on average 1.569767441860465) internal successors, (270), 172 states have internal predecessors, (270), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:39,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 274 transitions. [2022-03-19 02:05:39,669 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 274 transitions. Word has length 64 [2022-03-19 02:05:39,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:05:39,670 INFO L478 AbstractCegarLoop]: Abstraction has 177 states and 274 transitions. [2022-03-19 02:05:39,670 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) [2022-03-19 02:05:39,670 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 274 transitions. [2022-03-19 02:05:39,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-19 02:05:39,671 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:05:39,671 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] [2022-03-19 02:05:39,671 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-19 02:05:39,671 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:05:39,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:05:39,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1256068121, now seen corresponding path program 1 times [2022-03-19 02:05:39,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:05:39,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178683884] [2022-03-19 02:05:39,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:05:39,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:05:39,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:39,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:05:39,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:39,800 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:05:39,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:05:39,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178683884] [2022-03-19 02:05:39,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178683884] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:05:39,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:05:39,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:05:39,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964050284] [2022-03-19 02:05:39,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:05:39,801 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:05:39,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:05:39,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:05:39,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:05:39,802 INFO L87 Difference]: Start difference. First operand 177 states and 274 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) [2022-03-19 02:05:41,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:05:42,280 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:05:44,299 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:05:46,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:05:46,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:05:46,698 INFO L93 Difference]: Finished difference Result 344 states and 532 transitions. [2022-03-19 02:05:46,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:05:46,699 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 [2022-03-19 02:05:46,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:05:46,699 INFO L225 Difference]: With dead ends: 344 [2022-03-19 02:05:46,700 INFO L226 Difference]: Without dead ends: 193 [2022-03-19 02:05:46,700 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:05:46,701 INFO L912 BasicCegarLoop]: 204 mSDtfsCounter, 26 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-19 02:05:46,701 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 533 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 376 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-03-19 02:05:46,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-03-19 02:05:46,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 177. [2022-03-19 02:05:46,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 172 states have (on average 1.563953488372093) internal successors, (269), 172 states have internal predecessors, (269), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:46,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 273 transitions. [2022-03-19 02:05:46,707 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 273 transitions. Word has length 64 [2022-03-19 02:05:46,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:05:46,708 INFO L478 AbstractCegarLoop]: Abstraction has 177 states and 273 transitions. [2022-03-19 02:05:46,708 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) [2022-03-19 02:05:46,708 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 273 transitions. [2022-03-19 02:05:46,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-19 02:05:46,709 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:05:46,709 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] [2022-03-19 02:05:46,709 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-19 02:05:46,709 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:05:46,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:05:46,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1981736999, now seen corresponding path program 1 times [2022-03-19 02:05:46,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:05:46,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319273351] [2022-03-19 02:05:46,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:05:46,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:05:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:46,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:05:46,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:46,798 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:05:46,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:05:46,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319273351] [2022-03-19 02:05:46,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319273351] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:05:46,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:05:46,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:05:46,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868156365] [2022-03-19 02:05:46,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:05:46,799 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:05:46,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:05:46,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:05:46,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:05:46,800 INFO L87 Difference]: Start difference. First operand 177 states and 273 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) [2022-03-19 02:05:49,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:05:51,243 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:05:53,268 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:05:53,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:05:53,730 INFO L93 Difference]: Finished difference Result 453 states and 709 transitions. [2022-03-19 02:05:53,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:05:53,730 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 [2022-03-19 02:05:53,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:05:53,732 INFO L225 Difference]: With dead ends: 453 [2022-03-19 02:05:53,732 INFO L226 Difference]: Without dead ends: 302 [2022-03-19 02:05:53,732 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:05:53,733 INFO L912 BasicCegarLoop]: 133 mSDtfsCounter, 158 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 64 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-19 02:05:53,733 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 390 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 490 Invalid, 3 Unknown, 0 Unchecked, 6.9s Time] [2022-03-19 02:05:53,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-03-19 02:05:53,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 194. [2022-03-19 02:05:53,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 189 states have (on average 1.566137566137566) internal successors, (296), 189 states have internal predecessors, (296), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:05:53,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 300 transitions. [2022-03-19 02:05:53,739 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 300 transitions. Word has length 64 [2022-03-19 02:05:53,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:05:53,739 INFO L478 AbstractCegarLoop]: Abstraction has 194 states and 300 transitions. [2022-03-19 02:05:53,739 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) [2022-03-19 02:05:53,739 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 300 transitions. [2022-03-19 02:05:53,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-19 02:05:53,752 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:05:53,752 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] [2022-03-19 02:05:53,752 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-19 02:05:53,752 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:05:53,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:05:53,753 INFO L85 PathProgramCache]: Analyzing trace with hash 672474951, now seen corresponding path program 1 times [2022-03-19 02:05:53,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:05:53,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428018165] [2022-03-19 02:05:53,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:05:53,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:05:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:53,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:05:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:05:53,902 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:05:53,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:05:53,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428018165] [2022-03-19 02:05:53,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428018165] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:05:53,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:05:53,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:05:53,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86382000] [2022-03-19 02:05:53,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:05:53,906 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:05:53,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:05:53,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:05:53,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:05:53,907 INFO L87 Difference]: Start difference. First operand 194 states and 300 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) [2022-03-19 02:05:55,556 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:05:57,582 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:05:59,605 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:06:00,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:06:00,256 INFO L93 Difference]: Finished difference Result 375 states and 583 transitions. [2022-03-19 02:06:00,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:06:00,257 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 [2022-03-19 02:06:00,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:06:00,258 INFO L225 Difference]: With dead ends: 375 [2022-03-19 02:06:00,258 INFO L226 Difference]: Without dead ends: 207 [2022-03-19 02:06:00,258 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 [2022-03-19 02:06:00,259 INFO L912 BasicCegarLoop]: 207 mSDtfsCounter, 18 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-19 02:06:00,259 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 539 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 370 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-03-19 02:06:00,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-03-19 02:06:00,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 194. [2022-03-19 02:06:00,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 189 states have (on average 1.560846560846561) internal successors, (295), 189 states have internal predecessors, (295), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:06:00,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 299 transitions. [2022-03-19 02:06:00,264 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 299 transitions. Word has length 64 [2022-03-19 02:06:00,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:06:00,264 INFO L478 AbstractCegarLoop]: Abstraction has 194 states and 299 transitions. [2022-03-19 02:06:00,264 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) [2022-03-19 02:06:00,264 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 299 transitions. [2022-03-19 02:06:00,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-19 02:06:00,265 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:06:00,265 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] [2022-03-19 02:06:00,265 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-19 02:06:00,265 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:06:00,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:06:00,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1965860051, now seen corresponding path program 1 times [2022-03-19 02:06:00,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:06:00,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454809159] [2022-03-19 02:06:00,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:06:00,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:06:00,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:06:00,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:06:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:06:00,362 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:06:00,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:06:00,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454809159] [2022-03-19 02:06:00,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454809159] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:06:00,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:06:00,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:06:00,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093477561] [2022-03-19 02:06:00,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:06:00,363 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:06:00,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:06:00,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:06:00,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:06:00,364 INFO L87 Difference]: Start difference. First operand 194 states and 299 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) [2022-03-19 02:06:03,288 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:06:05,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:06:05,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:06:05,669 INFO L93 Difference]: Finished difference Result 375 states and 582 transitions. [2022-03-19 02:06:05,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:06:05,670 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 [2022-03-19 02:06:05,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:06:05,671 INFO L225 Difference]: With dead ends: 375 [2022-03-19 02:06:05,671 INFO L226 Difference]: Without dead ends: 207 [2022-03-19 02:06:05,671 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:06:05,672 INFO L912 BasicCegarLoop]: 207 mSDtfsCounter, 22 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-19 02:06:05,672 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 539 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 371 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-19 02:06:05,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-03-19 02:06:05,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 194. [2022-03-19 02:06:05,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 189 states have (on average 1.5555555555555556) internal successors, (294), 189 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) [2022-03-19 02:06:05,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 298 transitions. [2022-03-19 02:06:05,678 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 298 transitions. Word has length 65 [2022-03-19 02:06:05,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:06:05,678 INFO L478 AbstractCegarLoop]: Abstraction has 194 states and 298 transitions. [2022-03-19 02:06:05,678 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) [2022-03-19 02:06:05,678 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 298 transitions. [2022-03-19 02:06:05,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-19 02:06:05,678 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:06:05,679 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] [2022-03-19 02:06:05,679 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-19 02:06:05,679 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:06:05,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:06:05,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1094217131, now seen corresponding path program 1 times [2022-03-19 02:06:05,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:06:05,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156944378] [2022-03-19 02:06:05,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:06:05,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:06:05,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:06:05,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:06:05,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:06:05,794 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:06:05,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:06:05,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156944378] [2022-03-19 02:06:05,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156944378] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:06:05,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:06:05,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:06:05,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57827986] [2022-03-19 02:06:05,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:06:05,795 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:06:05,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:06:05,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:06:05,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:06:05,796 INFO L87 Difference]: Start difference. First operand 194 states and 298 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) [2022-03-19 02:06:07,804 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:06:08,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:06:08,338 INFO L93 Difference]: Finished difference Result 470 states and 733 transitions. [2022-03-19 02:06:08,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:06:08,338 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 [2022-03-19 02:06:08,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:06:08,339 INFO L225 Difference]: With dead ends: 470 [2022-03-19 02:06:08,339 INFO L226 Difference]: Without dead ends: 302 [2022-03-19 02:06:08,340 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:06:08,340 INFO L912 BasicCegarLoop]: 133 mSDtfsCounter, 160 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-19 02:06:08,340 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 390 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 489 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-19 02:06:08,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-03-19 02:06:08,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 194. [2022-03-19 02:06:08,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 189 states have (on average 1.5396825396825398) internal successors, (291), 189 states have internal predecessors, (291), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:06:08,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 295 transitions. [2022-03-19 02:06:08,345 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 295 transitions. Word has length 66 [2022-03-19 02:06:08,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:06:08,345 INFO L478 AbstractCegarLoop]: Abstraction has 194 states and 295 transitions. [2022-03-19 02:06:08,345 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) [2022-03-19 02:06:08,345 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 295 transitions. [2022-03-19 02:06:08,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-19 02:06:08,346 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:06:08,346 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] [2022-03-19 02:06:08,346 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-19 02:06:08,346 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:06:08,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:06:08,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1209786960, now seen corresponding path program 1 times [2022-03-19 02:06:08,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:06:08,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235830038] [2022-03-19 02:06:08,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:06:08,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:06:08,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:06:08,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:06:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:06:08,433 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:06:08,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:06:08,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235830038] [2022-03-19 02:06:08,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235830038] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:06:08,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:06:08,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:06:08,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017570808] [2022-03-19 02:06:08,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:06:08,434 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:06:08,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:06:08,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:06:08,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:06:08,434 INFO L87 Difference]: Start difference. First operand 194 states and 295 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) [2022-03-19 02:06:10,161 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:06:11,534 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:06:13,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:06:15,580 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:06:15,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:06:15,893 INFO L93 Difference]: Finished difference Result 365 states and 563 transitions. [2022-03-19 02:06:15,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:06:15,894 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 [2022-03-19 02:06:15,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:06:15,895 INFO L225 Difference]: With dead ends: 365 [2022-03-19 02:06:15,895 INFO L226 Difference]: Without dead ends: 197 [2022-03-19 02:06:15,895 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:06:15,896 INFO L912 BasicCegarLoop]: 214 mSDtfsCounter, 11 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:06:15,896 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 553 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 356 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-03-19 02:06:15,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-03-19 02:06:15,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 194. [2022-03-19 02:06:15,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 189 states have (on average 1.5343915343915344) internal successors, (290), 189 states have internal predecessors, (290), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:06:15,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 294 transitions. [2022-03-19 02:06:15,902 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 294 transitions. Word has length 67 [2022-03-19 02:06:15,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:06:15,902 INFO L478 AbstractCegarLoop]: Abstraction has 194 states and 294 transitions. [2022-03-19 02:06:15,902 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) [2022-03-19 02:06:15,902 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 294 transitions. [2022-03-19 02:06:15,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-19 02:06:15,902 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:06:15,903 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] [2022-03-19 02:06:15,903 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-19 02:06:15,903 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:06:15,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:06:15,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1552237473, now seen corresponding path program 1 times [2022-03-19 02:06:15,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:06:15,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160299508] [2022-03-19 02:06:15,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:06:15,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:06:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:06:15,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:06:15,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:06:16,003 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:06:16,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:06:16,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160299508] [2022-03-19 02:06:16,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160299508] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:06:16,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:06:16,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:06:16,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629483924] [2022-03-19 02:06:16,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:06:16,005 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:06:16,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:06:16,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:06:16,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:06:16,005 INFO L87 Difference]: Start difference. First operand 194 states and 294 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) [2022-03-19 02:06:17,653 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:06:20,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:06:22,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:06:22,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:06:22,824 INFO L93 Difference]: Finished difference Result 488 states and 754 transitions. [2022-03-19 02:06:22,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:06:22,824 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 [2022-03-19 02:06:22,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:06:22,826 INFO L225 Difference]: With dead ends: 488 [2022-03-19 02:06:22,826 INFO L226 Difference]: Without dead ends: 320 [2022-03-19 02:06:22,826 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:06:22,826 INFO L912 BasicCegarLoop]: 134 mSDtfsCounter, 135 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-19 02:06:22,827 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 392 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 495 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-03-19 02:06:22,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-03-19 02:06:22,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 234. [2022-03-19 02:06:22,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 229 states have (on average 1.5720524017467248) internal successors, (360), 229 states have internal predecessors, (360), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:06:22,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 364 transitions. [2022-03-19 02:06:22,832 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 364 transitions. Word has length 67 [2022-03-19 02:06:22,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:06:22,832 INFO L478 AbstractCegarLoop]: Abstraction has 234 states and 364 transitions. [2022-03-19 02:06:22,832 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) [2022-03-19 02:06:22,832 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 364 transitions. [2022-03-19 02:06:22,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-19 02:06:22,833 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:06:22,834 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, 1] [2022-03-19 02:06:22,834 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-19 02:06:22,834 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:06:22,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:06:22,834 INFO L85 PathProgramCache]: Analyzing trace with hash 37532662, now seen corresponding path program 1 times [2022-03-19 02:06:22,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:06:22,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334759497] [2022-03-19 02:06:22,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:06:22,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:06:22,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:06:22,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:06:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:06:22,936 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:06:22,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:06:22,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334759497] [2022-03-19 02:06:22,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334759497] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:06:22,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:06:22,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:06:22,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736268954] [2022-03-19 02:06:22,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:06:22,937 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:06:22,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:06:22,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:06:22,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:06:22,938 INFO L87 Difference]: Start difference. First operand 234 states and 364 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:06:25,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:06:27,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:06:29,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:06:29,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:06:29,630 INFO L93 Difference]: Finished difference Result 550 states and 867 transitions. [2022-03-19 02:06:29,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:06:29,630 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-03-19 02:06:29,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:06:29,632 INFO L225 Difference]: With dead ends: 550 [2022-03-19 02:06:29,632 INFO L226 Difference]: Without dead ends: 342 [2022-03-19 02:06:29,632 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:06:29,632 INFO L912 BasicCegarLoop]: 145 mSDtfsCounter, 134 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-19 02:06:29,633 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 414 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 503 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-03-19 02:06:29,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-03-19 02:06:29,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 257. [2022-03-19 02:06:29,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 252 states have (on average 1.6071428571428572) internal successors, (405), 252 states have internal predecessors, (405), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:06:29,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 409 transitions. [2022-03-19 02:06:29,640 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 409 transitions. Word has length 68 [2022-03-19 02:06:29,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:06:29,640 INFO L478 AbstractCegarLoop]: Abstraction has 257 states and 409 transitions. [2022-03-19 02:06:29,640 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:06:29,641 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 409 transitions. [2022-03-19 02:06:29,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-03-19 02:06:29,641 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:06:29,641 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-19 02:06:29,641 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-19 02:06:29,641 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:06:29,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:06:29,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1986857855, now seen corresponding path program 1 times [2022-03-19 02:06:29,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:06:29,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172546672] [2022-03-19 02:06:29,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:06:29,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:06:29,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:06:29,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:06:29,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:06:29,718 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-19 02:06:29,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:06:29,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172546672] [2022-03-19 02:06:29,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172546672] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:06:29,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:06:29,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:06:29,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178947220] [2022-03-19 02:06:29,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:06:29,719 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:06:29,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:06:29,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:06:29,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:06:29,720 INFO L87 Difference]: Start difference. First operand 257 states and 409 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:06:31,956 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:06:33,420 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:06:33,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:06:33,772 INFO L93 Difference]: Finished difference Result 529 states and 849 transitions. [2022-03-19 02:06:33,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:06:33,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2022-03-19 02:06:33,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:06:33,773 INFO L225 Difference]: With dead ends: 529 [2022-03-19 02:06:33,773 INFO L226 Difference]: Without dead ends: 298 [2022-03-19 02:06:33,774 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:06:33,774 INFO L912 BasicCegarLoop]: 212 mSDtfsCounter, 31 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-19 02:06:33,774 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 555 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-19 02:06:33,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-03-19 02:06:33,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 279. [2022-03-19 02:06:33,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 274 states have (on average 1.6058394160583942) internal successors, (440), 274 states have internal predecessors, (440), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:06:33,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 444 transitions. [2022-03-19 02:06:33,785 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 444 transitions. Word has length 96 [2022-03-19 02:06:33,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:06:33,785 INFO L478 AbstractCegarLoop]: Abstraction has 279 states and 444 transitions. [2022-03-19 02:06:33,785 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:06:33,785 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 444 transitions. [2022-03-19 02:06:33,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-19 02:06:33,786 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:06:33,786 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:06:33,786 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-19 02:06:33,786 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:06:33,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:06:33,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1890503815, now seen corresponding path program 1 times [2022-03-19 02:06:33,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:06:33,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108361433] [2022-03-19 02:06:33,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:06:33,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:06:33,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:06:33,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:06:33,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:06:33,874 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-19 02:06:33,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:06:33,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108361433] [2022-03-19 02:06:33,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108361433] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:06:33,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:06:33,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:06:33,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713172609] [2022-03-19 02:06:33,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:06:33,874 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:06:33,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:06:33,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:06:33,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:06:33,875 INFO L87 Difference]: Start difference. First operand 279 states and 444 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:06:35,398 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:06:37,424 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:06:39,446 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:06:41,469 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:06:41,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:06:41,838 INFO L93 Difference]: Finished difference Result 545 states and 874 transitions. [2022-03-19 02:06:41,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:06:41,838 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-03-19 02:06:41,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:06:41,839 INFO L225 Difference]: With dead ends: 545 [2022-03-19 02:06:41,839 INFO L226 Difference]: Without dead ends: 292 [2022-03-19 02:06:41,840 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:06:41,840 INFO L912 BasicCegarLoop]: 245 mSDtfsCounter, 21 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-03-19 02:06:41,840 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 620 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 411 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-03-19 02:06:41,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2022-03-19 02:06:41,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 279. [2022-03-19 02:06:41,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 274 states have (on average 1.602189781021898) internal successors, (439), 274 states have internal predecessors, (439), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:06:41,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 443 transitions. [2022-03-19 02:06:41,845 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 443 transitions. Word has length 110 [2022-03-19 02:06:41,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:06:41,846 INFO L478 AbstractCegarLoop]: Abstraction has 279 states and 443 transitions. [2022-03-19 02:06:41,846 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:06:41,846 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 443 transitions. [2022-03-19 02:06:41,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-19 02:06:41,846 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:06:41,846 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:06:41,847 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-19 02:06:41,847 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:06:41,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:06:41,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1976531207, now seen corresponding path program 1 times [2022-03-19 02:06:41,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:06:41,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395435344] [2022-03-19 02:06:41,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:06:41,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:06:41,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:06:41,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:06:41,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:06:41,925 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 02:06:41,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:06:41,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395435344] [2022-03-19 02:06:41,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395435344] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:06:41,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:06:41,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:06:41,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136417042] [2022-03-19 02:06:41,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:06:41,925 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:06:41,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:06:41,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:06:41,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:06:41,926 INFO L87 Difference]: Start difference. First operand 279 states and 443 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) [2022-03-19 02:06:44,746 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:06:46,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:06:46,162 INFO L93 Difference]: Finished difference Result 550 states and 880 transitions. [2022-03-19 02:06:46,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:06:46,163 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 110 [2022-03-19 02:06:46,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:06:46,164 INFO L225 Difference]: With dead ends: 550 [2022-03-19 02:06:46,164 INFO L226 Difference]: Without dead ends: 297 [2022-03-19 02:06:46,164 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:06:46,165 INFO L912 BasicCegarLoop]: 214 mSDtfsCounter, 34 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-19 02:06:46,165 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 557 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 406 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-03-19 02:06:46,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-03-19 02:06:46,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 279. [2022-03-19 02:06:46,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 274 states have (on average 1.5985401459854014) internal successors, (438), 274 states have internal predecessors, (438), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:06:46,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 442 transitions. [2022-03-19 02:06:46,186 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 442 transitions. Word has length 110 [2022-03-19 02:06:46,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:06:46,187 INFO L478 AbstractCegarLoop]: Abstraction has 279 states and 442 transitions. [2022-03-19 02:06:46,187 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) [2022-03-19 02:06:46,187 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 442 transitions. [2022-03-19 02:06:46,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-19 02:06:46,187 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:06:46,188 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:06:46,188 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-19 02:06:46,188 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:06:46,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:06:46,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1574692822, now seen corresponding path program 1 times [2022-03-19 02:06:46,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:06:46,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185090568] [2022-03-19 02:06:46,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:06:46,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:06:46,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:06:46,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:06:46,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:06:46,279 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-03-19 02:06:46,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:06:46,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185090568] [2022-03-19 02:06:46,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185090568] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:06:46,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:06:46,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-19 02:06:46,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391205417] [2022-03-19 02:06:46,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:06:46,280 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-19 02:06:46,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:06:46,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-19 02:06:46,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:06:46,280 INFO L87 Difference]: Start difference. First operand 279 states and 442 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:06:47,855 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 [] [2022-03-19 02:06:49,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:06:51,914 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:06:53,588 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:06:53,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:06:53,919 INFO L93 Difference]: Finished difference Result 541 states and 866 transitions. [2022-03-19 02:06:53,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-19 02:06:53,920 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-03-19 02:06:53,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:06:53,921 INFO L225 Difference]: With dead ends: 541 [2022-03-19 02:06:53,921 INFO L226 Difference]: Without dead ends: 288 [2022-03-19 02:06:53,921 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 [2022-03-19 02:06:53,921 INFO L912 BasicCegarLoop]: 219 mSDtfsCounter, 3 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-03-19 02:06:53,922 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 697 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 450 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-03-19 02:06:53,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2022-03-19 02:06:53,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2022-03-19 02:06:53,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 283 states have (on average 1.5865724381625441) internal successors, (449), 283 states have internal predecessors, (449), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:06:53,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 453 transitions. [2022-03-19 02:06:53,926 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 453 transitions. Word has length 111 [2022-03-19 02:06:53,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:06:53,926 INFO L478 AbstractCegarLoop]: Abstraction has 288 states and 453 transitions. [2022-03-19 02:06:53,927 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:06:53,927 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 453 transitions. [2022-03-19 02:06:53,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-19 02:06:53,927 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:06:53,927 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:06:53,927 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-19 02:06:53,928 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:06:53,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:06:53,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1141643190, now seen corresponding path program 1 times [2022-03-19 02:06:53,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:06:53,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010127073] [2022-03-19 02:06:53,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:06:53,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:06:53,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:06:54,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:06:54,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:06:54,012 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 02:06:54,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:06:54,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010127073] [2022-03-19 02:06:54,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010127073] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:06:54,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:06:54,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:06:54,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727709584] [2022-03-19 02:06:54,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:06:54,014 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:06:54,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:06:54,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:06:54,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:06:54,016 INFO L87 Difference]: Start difference. First operand 288 states and 453 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:06:56,980 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:06:59,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:06:59,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:06:59,772 INFO L93 Difference]: Finished difference Result 577 states and 911 transitions. [2022-03-19 02:06:59,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:06:59,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-03-19 02:06:59,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:06:59,773 INFO L225 Difference]: With dead ends: 577 [2022-03-19 02:06:59,773 INFO L226 Difference]: Without dead ends: 315 [2022-03-19 02:06:59,774 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:06:59,774 INFO L912 BasicCegarLoop]: 214 mSDtfsCounter, 39 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-19 02:06:59,774 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 557 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 405 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-03-19 02:06:59,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-03-19 02:06:59,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 288. [2022-03-19 02:06:59,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 283 states have (on average 1.5830388692579505) internal successors, (448), 283 states have internal predecessors, (448), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:06:59,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 452 transitions. [2022-03-19 02:06:59,779 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 452 transitions. Word has length 111 [2022-03-19 02:06:59,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:06:59,779 INFO L478 AbstractCegarLoop]: Abstraction has 288 states and 452 transitions. [2022-03-19 02:06:59,779 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:06:59,779 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 452 transitions. [2022-03-19 02:06:59,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-03-19 02:06:59,780 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:06:59,780 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-19 02:06:59,780 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-19 02:06:59,780 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:06:59,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:06:59,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1562282836, now seen corresponding path program 1 times [2022-03-19 02:06:59,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:06:59,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179989293] [2022-03-19 02:06:59,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:06:59,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:06:59,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:06:59,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:06:59,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:06:59,904 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 02:06:59,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:06:59,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179989293] [2022-03-19 02:06:59,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179989293] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:06:59,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:06:59,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:06:59,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064581225] [2022-03-19 02:06:59,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:06:59,905 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:06:59,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:06:59,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:06:59,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:06:59,905 INFO L87 Difference]: Start difference. First operand 288 states and 452 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) [2022-03-19 02:07:01,399 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:07:02,772 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:07:04,503 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:07:04,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:07:04,949 INFO L93 Difference]: Finished difference Result 644 states and 1008 transitions. [2022-03-19 02:07:04,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:07:04,950 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 112 [2022-03-19 02:07:04,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:07:04,951 INFO L225 Difference]: With dead ends: 644 [2022-03-19 02:07:04,951 INFO L226 Difference]: Without dead ends: 382 [2022-03-19 02:07:04,951 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:07:04,952 INFO L912 BasicCegarLoop]: 145 mSDtfsCounter, 160 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-19 02:07:04,952 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 414 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-03-19 02:07:04,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2022-03-19 02:07:04,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 288. [2022-03-19 02:07:04,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 283 states have (on average 1.568904593639576) internal successors, (444), 283 states have internal predecessors, (444), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:07:04,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 448 transitions. [2022-03-19 02:07:04,957 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 448 transitions. Word has length 112 [2022-03-19 02:07:04,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:07:04,957 INFO L478 AbstractCegarLoop]: Abstraction has 288 states and 448 transitions. [2022-03-19 02:07:04,958 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) [2022-03-19 02:07:04,958 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 448 transitions. [2022-03-19 02:07:04,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-03-19 02:07:04,958 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:07:04,958 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2022-03-19 02:07:04,958 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-19 02:07:04,959 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:07:04,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:07:04,959 INFO L85 PathProgramCache]: Analyzing trace with hash -452187025, now seen corresponding path program 1 times [2022-03-19 02:07:04,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:07:04,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093644955] [2022-03-19 02:07:04,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:07:04,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:07:05,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:07:05,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:07:05,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:07:05,052 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 02:07:05,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:07:05,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093644955] [2022-03-19 02:07:05,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093644955] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:07:05,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:07:05,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:07:05,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228436738] [2022-03-19 02:07:05,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:07:05,053 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:07:05,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:07:05,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:07:05,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:07:05,054 INFO L87 Difference]: Start difference. First operand 288 states and 448 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:07:06,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:07:08,504 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:07:10,717 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 [] [2022-03-19 02:07:11,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:07:11,070 INFO L93 Difference]: Finished difference Result 567 states and 888 transitions. [2022-03-19 02:07:11,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:07:11,070 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 114 [2022-03-19 02:07:11,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:07:11,071 INFO L225 Difference]: With dead ends: 567 [2022-03-19 02:07:11,071 INFO L226 Difference]: Without dead ends: 305 [2022-03-19 02:07:11,072 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:07:11,072 INFO L912 BasicCegarLoop]: 215 mSDtfsCounter, 33 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-19 02:07:11,072 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 559 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-03-19 02:07:11,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-03-19 02:07:11,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 288. [2022-03-19 02:07:11,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 283 states have (on average 1.5653710247349824) internal successors, (443), 283 states have internal predecessors, (443), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:07:11,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 447 transitions. [2022-03-19 02:07:11,096 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 447 transitions. Word has length 114 [2022-03-19 02:07:11,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:07:11,096 INFO L478 AbstractCegarLoop]: Abstraction has 288 states and 447 transitions. [2022-03-19 02:07:11,096 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:07:11,096 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 447 transitions. [2022-03-19 02:07:11,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-19 02:07:11,097 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:07:11,097 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, 1] [2022-03-19 02:07:11,097 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-19 02:07:11,097 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:07:11,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:07:11,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1883754976, now seen corresponding path program 1 times [2022-03-19 02:07:11,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:07:11,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974346718] [2022-03-19 02:07:11,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:07:11,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:07:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:07:11,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:07:11,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:07:11,198 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 02:07:11,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:07:11,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974346718] [2022-03-19 02:07:11,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974346718] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:07:11,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:07:11,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:07:11,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985130928] [2022-03-19 02:07:11,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:07:11,200 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:07:11,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:07:11,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:07:11,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:07:11,200 INFO L87 Difference]: Start difference. First operand 288 states and 447 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) [2022-03-19 02:07:13,970 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:07:15,990 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:07:16,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:07:16,915 INFO L93 Difference]: Finished difference Result 659 states and 1029 transitions. [2022-03-19 02:07:16,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:07:16,915 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 118 [2022-03-19 02:07:16,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:07:16,917 INFO L225 Difference]: With dead ends: 659 [2022-03-19 02:07:16,917 INFO L226 Difference]: Without dead ends: 397 [2022-03-19 02:07:16,917 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:07:16,917 INFO L912 BasicCegarLoop]: 211 mSDtfsCounter, 98 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-19 02:07:16,918 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 553 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 542 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-03-19 02:07:16,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2022-03-19 02:07:16,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 322. [2022-03-19 02:07:16,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 317 states have (on average 1.5741324921135647) internal successors, (499), 317 states have internal predecessors, (499), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:07:16,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 503 transitions. [2022-03-19 02:07:16,923 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 503 transitions. Word has length 118 [2022-03-19 02:07:16,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:07:16,924 INFO L478 AbstractCegarLoop]: Abstraction has 322 states and 503 transitions. [2022-03-19 02:07:16,924 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) [2022-03-19 02:07:16,924 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 503 transitions. [2022-03-19 02:07:16,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-19 02:07:16,925 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:07:16,925 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, 1] [2022-03-19 02:07:16,925 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-19 02:07:16,925 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:07:16,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:07:16,926 INFO L85 PathProgramCache]: Analyzing trace with hash -929526081, now seen corresponding path program 1 times [2022-03-19 02:07:16,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:07:16,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476698508] [2022-03-19 02:07:16,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:07:16,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:07:16,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:07:17,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:07:17,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:07:17,026 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-19 02:07:17,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:07:17,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476698508] [2022-03-19 02:07:17,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476698508] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:07:17,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:07:17,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:07:17,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101970199] [2022-03-19 02:07:17,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:07:17,027 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:07:17,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:07:17,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:07:17,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:07:17,028 INFO L87 Difference]: Start difference. First operand 322 states and 503 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:07:19,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:07:21,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:07:23,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:07:23,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:07:23,902 INFO L93 Difference]: Finished difference Result 675 states and 1058 transitions. [2022-03-19 02:07:23,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:07:23,903 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-03-19 02:07:23,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:07:23,904 INFO L225 Difference]: With dead ends: 675 [2022-03-19 02:07:23,904 INFO L226 Difference]: Without dead ends: 379 [2022-03-19 02:07:23,904 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:07:23,905 INFO L912 BasicCegarLoop]: 263 mSDtfsCounter, 38 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-19 02:07:23,905 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 655 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 481 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-03-19 02:07:23,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2022-03-19 02:07:23,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 346. [2022-03-19 02:07:23,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 341 states have (on average 1.5747800586510263) internal successors, (537), 341 states have internal predecessors, (537), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:07:23,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 541 transitions. [2022-03-19 02:07:23,910 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 541 transitions. Word has length 118 [2022-03-19 02:07:23,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:07:23,910 INFO L478 AbstractCegarLoop]: Abstraction has 346 states and 541 transitions. [2022-03-19 02:07:23,910 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:07:23,910 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 541 transitions. [2022-03-19 02:07:23,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-19 02:07:23,911 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:07:23,911 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, 1] [2022-03-19 02:07:23,911 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-19 02:07:23,911 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:07:23,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:07:23,912 INFO L85 PathProgramCache]: Analyzing trace with hash 638819263, now seen corresponding path program 1 times [2022-03-19 02:07:23,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:07:23,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451178783] [2022-03-19 02:07:23,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:07:23,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:07:23,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:07:23,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:07:23,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:07:23,993 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-19 02:07:23,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:07:23,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451178783] [2022-03-19 02:07:23,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451178783] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:07:23,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:07:23,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:07:23,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405976362] [2022-03-19 02:07:23,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:07:23,994 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:07:23,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:07:23,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:07:23,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:07:23,994 INFO L87 Difference]: Start difference. First operand 346 states and 541 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:07:25,462 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:07:27,199 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:07:28,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:07:29,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:07:29,232 INFO L93 Difference]: Finished difference Result 750 states and 1174 transitions. [2022-03-19 02:07:29,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:07:29,232 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-19 02:07:29,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:07:29,233 INFO L225 Difference]: With dead ends: 750 [2022-03-19 02:07:29,233 INFO L226 Difference]: Without dead ends: 430 [2022-03-19 02:07:29,234 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:07:29,234 INFO L912 BasicCegarLoop]: 134 mSDtfsCounter, 161 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-19 02:07:29,234 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 392 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-03-19 02:07:29,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-03-19 02:07:29,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 346. [2022-03-19 02:07:29,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 341 states have (on average 1.5571847507331378) internal successors, (531), 341 states have internal predecessors, (531), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:07:29,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 535 transitions. [2022-03-19 02:07:29,240 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 535 transitions. Word has length 123 [2022-03-19 02:07:29,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:07:29,240 INFO L478 AbstractCegarLoop]: Abstraction has 346 states and 535 transitions. [2022-03-19 02:07:29,240 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:07:29,240 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 535 transitions. [2022-03-19 02:07:29,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-19 02:07:29,241 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:07:29,241 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, 1] [2022-03-19 02:07:29,241 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-19 02:07:29,241 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:07:29,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:07:29,241 INFO L85 PathProgramCache]: Analyzing trace with hash -194713814, now seen corresponding path program 1 times [2022-03-19 02:07:29,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:07:29,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918940832] [2022-03-19 02:07:29,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:07:29,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:07:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:07:29,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:07:29,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:07:29,352 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 02:07:29,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:07:29,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918940832] [2022-03-19 02:07:29,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918940832] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:07:29,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:07:29,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:07:29,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743422137] [2022-03-19 02:07:29,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:07:29,353 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:07:29,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:07:29,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:07:29,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:07:29,353 INFO L87 Difference]: Start difference. First operand 346 states and 535 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) [2022-03-19 02:07:32,585 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:07:33,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:07:33,318 INFO L93 Difference]: Finished difference Result 790 states and 1230 transitions. [2022-03-19 02:07:33,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:07:33,318 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 [2022-03-19 02:07:33,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:07:33,320 INFO L225 Difference]: With dead ends: 790 [2022-03-19 02:07:33,320 INFO L226 Difference]: Without dead ends: 470 [2022-03-19 02:07:33,321 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:07:33,321 INFO L912 BasicCegarLoop]: 134 mSDtfsCounter, 134 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-03-19 02:07:33,321 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 392 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-03-19 02:07:33,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2022-03-19 02:07:33,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 383. [2022-03-19 02:07:33,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 378 states have (on average 1.5687830687830688) internal successors, (593), 378 states have internal predecessors, (593), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:07:33,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 597 transitions. [2022-03-19 02:07:33,327 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 597 transitions. Word has length 124 [2022-03-19 02:07:33,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:07:33,327 INFO L478 AbstractCegarLoop]: Abstraction has 383 states and 597 transitions. [2022-03-19 02:07:33,327 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) [2022-03-19 02:07:33,327 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 597 transitions. [2022-03-19 02:07:33,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-03-19 02:07:33,328 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:07:33,328 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, 1] [2022-03-19 02:07:33,328 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-19 02:07:33,328 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:07:33,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:07:33,328 INFO L85 PathProgramCache]: Analyzing trace with hash 615512470, now seen corresponding path program 1 times [2022-03-19 02:07:33,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:07:33,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140504942] [2022-03-19 02:07:33,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:07:33,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:07:33,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:07:33,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:07:33,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:07:33,414 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 02:07:33,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:07:33,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140504942] [2022-03-19 02:07:33,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140504942] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:07:33,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:07:33,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:07:33,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519050799] [2022-03-19 02:07:33,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:07:33,414 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:07:33,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:07:33,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:07:33,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:07:33,415 INFO L87 Difference]: Start difference. First operand 383 states and 597 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) [2022-03-19 02:07:35,108 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:07:36,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:07:36,062 INFO L93 Difference]: Finished difference Result 802 states and 1255 transitions. [2022-03-19 02:07:36,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:07:36,062 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 125 [2022-03-19 02:07:36,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:07:36,063 INFO L225 Difference]: With dead ends: 802 [2022-03-19 02:07:36,063 INFO L226 Difference]: Without dead ends: 445 [2022-03-19 02:07:36,064 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:07:36,064 INFO L912 BasicCegarLoop]: 196 mSDtfsCounter, 86 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-19 02:07:36,064 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 523 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-19 02:07:36,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2022-03-19 02:07:36,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 389. [2022-03-19 02:07:36,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 384 states have (on average 1.5703125) internal successors, (603), 384 states have internal predecessors, (603), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:07:36,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 607 transitions. [2022-03-19 02:07:36,071 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 607 transitions. Word has length 125 [2022-03-19 02:07:36,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:07:36,071 INFO L478 AbstractCegarLoop]: Abstraction has 389 states and 607 transitions. [2022-03-19 02:07:36,071 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) [2022-03-19 02:07:36,071 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 607 transitions. [2022-03-19 02:07:36,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-19 02:07:36,072 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:07:36,072 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-03-19 02:07:36,072 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-19 02:07:36,072 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:07:36,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:07:36,073 INFO L85 PathProgramCache]: Analyzing trace with hash 19132518, now seen corresponding path program 1 times [2022-03-19 02:07:36,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:07:36,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288791607] [2022-03-19 02:07:36,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:07:36,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:07:36,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:07:36,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:07:36,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:07:36,196 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 02:07:36,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:07:36,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288791607] [2022-03-19 02:07:36,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288791607] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:07:36,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:07:36,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:07:36,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560475569] [2022-03-19 02:07:36,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:07:36,197 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:07:36,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:07:36,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:07:36,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:07:36,197 INFO L87 Difference]: Start difference. First operand 389 states and 607 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:07:38,980 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:07:41,013 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:07:41,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:07:41,436 INFO L93 Difference]: Finished difference Result 835 states and 1305 transitions. [2022-03-19 02:07:41,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:07:41,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-03-19 02:07:41,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:07:41,438 INFO L225 Difference]: With dead ends: 835 [2022-03-19 02:07:41,438 INFO L226 Difference]: Without dead ends: 472 [2022-03-19 02:07:41,439 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:07:41,440 INFO L912 BasicCegarLoop]: 135 mSDtfsCounter, 153 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-19 02:07:41,440 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 394 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-19 02:07:41,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2022-03-19 02:07:41,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 389. [2022-03-19 02:07:41,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 384 states have (on average 1.5572916666666667) internal successors, (598), 384 states have internal predecessors, (598), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:07:41,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 602 transitions. [2022-03-19 02:07:41,446 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 602 transitions. Word has length 132 [2022-03-19 02:07:41,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:07:41,446 INFO L478 AbstractCegarLoop]: Abstraction has 389 states and 602 transitions. [2022-03-19 02:07:41,446 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:07:41,446 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 602 transitions. [2022-03-19 02:07:41,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-19 02:07:41,447 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:07:41,447 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, 1] [2022-03-19 02:07:41,447 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-19 02:07:41,447 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:07:41,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:07:41,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1069531404, now seen corresponding path program 1 times [2022-03-19 02:07:41,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:07:41,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794022731] [2022-03-19 02:07:41,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:07:41,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:07:41,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:07:41,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:07:41,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:07:41,543 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 02:07:41,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:07:41,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794022731] [2022-03-19 02:07:41,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794022731] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:07:41,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:07:41,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:07:41,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450317445] [2022-03-19 02:07:41,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:07:41,544 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:07:41,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:07:41,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:07:41,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:07:41,544 INFO L87 Difference]: Start difference. First operand 389 states and 602 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:07:43,681 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:07:45,706 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:07:47,733 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:07:48,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:07:48,194 INFO L93 Difference]: Finished difference Result 875 states and 1361 transitions. [2022-03-19 02:07:48,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:07:48,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-03-19 02:07:48,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:07:48,196 INFO L225 Difference]: With dead ends: 875 [2022-03-19 02:07:48,196 INFO L226 Difference]: Without dead ends: 512 [2022-03-19 02:07:48,197 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:07:48,197 INFO L912 BasicCegarLoop]: 147 mSDtfsCounter, 126 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 58 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-19 02:07:48,197 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 419 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 500 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-03-19 02:07:48,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2022-03-19 02:07:48,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 432. [2022-03-19 02:07:48,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 427 states have (on average 1.5667447306791569) internal successors, (669), 427 states have internal predecessors, (669), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:07:48,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 673 transitions. [2022-03-19 02:07:48,206 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 673 transitions. Word has length 132 [2022-03-19 02:07:48,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:07:48,206 INFO L478 AbstractCegarLoop]: Abstraction has 432 states and 673 transitions. [2022-03-19 02:07:48,207 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:07:48,207 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 673 transitions. [2022-03-19 02:07:48,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-19 02:07:48,209 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:07:48,210 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 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, 1] [2022-03-19 02:07:48,210 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-19 02:07:48,210 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:07:48,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:07:48,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1691460405, now seen corresponding path program 1 times [2022-03-19 02:07:48,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:07:48,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374501281] [2022-03-19 02:07:48,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:07:48,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:07:48,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:07:48,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:07:48,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:07:48,312 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 02:07:48,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:07:48,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374501281] [2022-03-19 02:07:48,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374501281] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:07:48,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:07:48,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:07:48,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642053531] [2022-03-19 02:07:48,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:07:48,312 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:07:48,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:07:48,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:07:48,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:07:48,313 INFO L87 Difference]: Start difference. First operand 432 states and 673 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:07:51,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:07:51,264 INFO L93 Difference]: Finished difference Result 921 states and 1437 transitions. [2022-03-19 02:07:51,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:07:51,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-19 02:07:51,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:07:51,266 INFO L225 Difference]: With dead ends: 921 [2022-03-19 02:07:51,266 INFO L226 Difference]: Without dead ends: 515 [2022-03-19 02:07:51,266 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:07:51,267 INFO L912 BasicCegarLoop]: 135 mSDtfsCounter, 158 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-19 02:07:51,267 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 394 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-19 02:07:51,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2022-03-19 02:07:51,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 432. [2022-03-19 02:07:51,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 427 states have (on average 1.550351288056206) internal successors, (662), 427 states have internal predecessors, (662), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:07:51,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 666 transitions. [2022-03-19 02:07:51,274 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 666 transitions. Word has length 133 [2022-03-19 02:07:51,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:07:51,274 INFO L478 AbstractCegarLoop]: Abstraction has 432 states and 666 transitions. [2022-03-19 02:07:51,274 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:07:51,274 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 666 transitions. [2022-03-19 02:07:51,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-19 02:07:51,275 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:07:51,276 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, 1, 1] [2022-03-19 02:07:51,276 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-19 02:07:51,276 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:07:51,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:07:51,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1213881734, now seen corresponding path program 1 times [2022-03-19 02:07:51,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:07:51,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651315350] [2022-03-19 02:07:51,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:07:51,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:07:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:07:51,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:07:51,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:07:51,390 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 02:07:51,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:07:51,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651315350] [2022-03-19 02:07:51,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651315350] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:07:51,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:07:51,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:07:51,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265445553] [2022-03-19 02:07:51,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:07:51,391 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:07:51,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:07:51,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:07:51,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:07:51,392 INFO L87 Difference]: Start difference. First operand 432 states and 666 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:07:53,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:07:55,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:07:56,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:07:56,297 INFO L93 Difference]: Finished difference Result 921 states and 1423 transitions. [2022-03-19 02:07:56,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:07:56,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-19 02:07:56,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:07:56,299 INFO L225 Difference]: With dead ends: 921 [2022-03-19 02:07:56,299 INFO L226 Difference]: Without dead ends: 513 [2022-03-19 02:07:56,299 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:07:56,300 INFO L912 BasicCegarLoop]: 147 mSDtfsCounter, 126 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-19 02:07:56,300 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 418 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-03-19 02:07:56,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-03-19 02:07:56,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 434. [2022-03-19 02:07:56,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 429 states have (on average 1.5501165501165501) internal successors, (665), 429 states have internal predecessors, (665), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:07:56,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 669 transitions. [2022-03-19 02:07:56,306 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 669 transitions. Word has length 133 [2022-03-19 02:07:56,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:07:56,306 INFO L478 AbstractCegarLoop]: Abstraction has 434 states and 669 transitions. [2022-03-19 02:07:56,306 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:07:56,306 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 669 transitions. [2022-03-19 02:07:56,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-03-19 02:07:56,307 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:07:56,307 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2022-03-19 02:07:56,307 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-19 02:07:56,307 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:07:56,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:07:56,308 INFO L85 PathProgramCache]: Analyzing trace with hash 948427854, now seen corresponding path program 1 times [2022-03-19 02:07:56,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:07:56,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477180328] [2022-03-19 02:07:56,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:07:56,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:07:56,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:07:56,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:07:56,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:07:56,411 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 02:07:56,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:07:56,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477180328] [2022-03-19 02:07:56,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477180328] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:07:56,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:07:56,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:07:56,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613715266] [2022-03-19 02:07:56,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:07:56,412 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:07:56,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:07:56,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:07:56,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:07:56,412 INFO L87 Difference]: Start difference. First operand 434 states and 669 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) [2022-03-19 02:07:58,420 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:07:58,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:07:58,836 INFO L93 Difference]: Finished difference Result 880 states and 1362 transitions. [2022-03-19 02:07:58,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:07:58,836 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 136 [2022-03-19 02:07:58,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:07:58,838 INFO L225 Difference]: With dead ends: 880 [2022-03-19 02:07:58,838 INFO L226 Difference]: Without dead ends: 472 [2022-03-19 02:07:58,838 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:07:58,839 INFO L912 BasicCegarLoop]: 207 mSDtfsCounter, 88 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:07:58,839 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 543 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 02:07:58,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2022-03-19 02:07:58,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 434. [2022-03-19 02:07:58,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 429 states have (on average 1.5477855477855478) internal successors, (664), 429 states have internal predecessors, (664), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:07:58,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 668 transitions. [2022-03-19 02:07:58,848 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 668 transitions. Word has length 136 [2022-03-19 02:07:58,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:07:58,849 INFO L478 AbstractCegarLoop]: Abstraction has 434 states and 668 transitions. [2022-03-19 02:07:58,849 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) [2022-03-19 02:07:58,849 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 668 transitions. [2022-03-19 02:07:58,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-03-19 02:07:58,850 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:07:58,850 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2022-03-19 02:07:58,850 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-19 02:07:58,850 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:07:58,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:07:58,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1696402643, now seen corresponding path program 1 times [2022-03-19 02:07:58,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:07:58,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420872879] [2022-03-19 02:07:58,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:07:58,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:07:58,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:07:58,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:07:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:07:58,953 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 02:07:58,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:07:58,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420872879] [2022-03-19 02:07:58,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420872879] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:07:58,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:07:58,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:07:58,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107833552] [2022-03-19 02:07:58,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:07:58,955 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:07:58,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:07:58,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:07:58,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:07:58,955 INFO L87 Difference]: Start difference. First operand 434 states and 668 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) [2022-03-19 02:08:01,048 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:08:02,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:08:02,922 INFO L93 Difference]: Finished difference Result 854 states and 1323 transitions. [2022-03-19 02:08:02,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:08:02,922 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 136 [2022-03-19 02:08:02,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:08:02,923 INFO L225 Difference]: With dead ends: 854 [2022-03-19 02:08:02,923 INFO L226 Difference]: Without dead ends: 446 [2022-03-19 02:08:02,924 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:08:02,924 INFO L912 BasicCegarLoop]: 254 mSDtfsCounter, 36 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-19 02:08:02,924 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 637 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-19 02:08:02,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2022-03-19 02:08:02,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 434. [2022-03-19 02:08:02,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 429 states have (on average 1.5454545454545454) internal successors, (663), 429 states have internal predecessors, (663), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:08:02,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 667 transitions. [2022-03-19 02:08:02,930 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 667 transitions. Word has length 136 [2022-03-19 02:08:02,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:08:02,930 INFO L478 AbstractCegarLoop]: Abstraction has 434 states and 667 transitions. [2022-03-19 02:08:02,930 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) [2022-03-19 02:08:02,930 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 667 transitions. [2022-03-19 02:08:02,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-03-19 02:08:02,931 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:08:02,931 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:08:02,931 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-19 02:08:02,932 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:08:02,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:08:02,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1332153182, now seen corresponding path program 1 times [2022-03-19 02:08:02,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:08:02,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221595310] [2022-03-19 02:08:02,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:08:02,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:08:02,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:08:03,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:08:03,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:08:03,011 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 02:08:03,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:08:03,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221595310] [2022-03-19 02:08:03,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221595310] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:08:03,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:08:03,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:08:03,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585499860] [2022-03-19 02:08:03,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:08:03,012 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:08:03,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:08:03,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:08:03,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:08:03,012 INFO L87 Difference]: Start difference. First operand 434 states and 667 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:08:04,500 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:08:06,524 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:08:08,557 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:08:09,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:08:09,953 INFO L93 Difference]: Finished difference Result 880 states and 1358 transitions. [2022-03-19 02:08:09,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:08:09,953 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 140 [2022-03-19 02:08:09,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:08:09,954 INFO L225 Difference]: With dead ends: 880 [2022-03-19 02:08:09,954 INFO L226 Difference]: Without dead ends: 472 [2022-03-19 02:08:09,955 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:08:09,955 INFO L912 BasicCegarLoop]: 214 mSDtfsCounter, 78 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-19 02:08:09,956 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 559 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 505 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-03-19 02:08:09,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2022-03-19 02:08:09,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 434. [2022-03-19 02:08:09,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 429 states have (on average 1.543123543123543) internal successors, (662), 429 states have internal predecessors, (662), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:08:09,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 666 transitions. [2022-03-19 02:08:09,962 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 666 transitions. Word has length 140 [2022-03-19 02:08:09,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:08:09,962 INFO L478 AbstractCegarLoop]: Abstraction has 434 states and 666 transitions. [2022-03-19 02:08:09,962 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:08:09,962 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 666 transitions. [2022-03-19 02:08:09,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-03-19 02:08:09,963 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:08:09,963 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:08:09,963 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-19 02:08:09,963 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:08:09,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:08:09,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1317903037, now seen corresponding path program 1 times [2022-03-19 02:08:09,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:08:09,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643467160] [2022-03-19 02:08:09,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:08:09,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:08:10,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:08:10,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:08:10,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:08:10,063 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-19 02:08:10,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:08:10,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643467160] [2022-03-19 02:08:10,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643467160] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:08:10,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:08:10,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:08:10,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608879085] [2022-03-19 02:08:10,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:08:10,064 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:08:10,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:08:10,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:08:10,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:08:10,064 INFO L87 Difference]: Start difference. First operand 434 states and 666 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) [2022-03-19 02:08:11,681 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:08:13,232 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:08:15,850 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:08:16,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:08:16,258 INFO L93 Difference]: Finished difference Result 999 states and 1545 transitions. [2022-03-19 02:08:16,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:08:16,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 140 [2022-03-19 02:08:16,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:08:16,260 INFO L225 Difference]: With dead ends: 999 [2022-03-19 02:08:16,260 INFO L226 Difference]: Without dead ends: 591 [2022-03-19 02:08:16,261 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:08:16,261 INFO L912 BasicCegarLoop]: 154 mSDtfsCounter, 134 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-19 02:08:16,261 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 432 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 493 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-03-19 02:08:16,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2022-03-19 02:08:16,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 498. [2022-03-19 02:08:16,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 493 states have (on average 1.5456389452332657) internal successors, (762), 493 states have internal predecessors, (762), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:08:16,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 766 transitions. [2022-03-19 02:08:16,268 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 766 transitions. Word has length 140 [2022-03-19 02:08:16,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:08:16,268 INFO L478 AbstractCegarLoop]: Abstraction has 498 states and 766 transitions. [2022-03-19 02:08:16,268 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) [2022-03-19 02:08:16,268 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 766 transitions. [2022-03-19 02:08:16,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-19 02:08:16,269 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:08:16,269 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, 1] [2022-03-19 02:08:16,269 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-19 02:08:16,269 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:08:16,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:08:16,270 INFO L85 PathProgramCache]: Analyzing trace with hash -33221834, now seen corresponding path program 1 times [2022-03-19 02:08:16,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:08:16,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947964069] [2022-03-19 02:08:16,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:08:16,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:08:16,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:08:16,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:08:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:08:16,369 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 02:08:16,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:08:16,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947964069] [2022-03-19 02:08:16,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947964069] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:08:16,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:08:16,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:08:16,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144774595] [2022-03-19 02:08:16,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:08:16,370 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:08:16,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:08:16,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:08:16,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:08:16,371 INFO L87 Difference]: Start difference. First operand 498 states and 766 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) [2022-03-19 02:08:18,378 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:08:18,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:08:18,782 INFO L93 Difference]: Finished difference Result 1008 states and 1556 transitions. [2022-03-19 02:08:18,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:08:18,782 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 [2022-03-19 02:08:18,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:08:18,783 INFO L225 Difference]: With dead ends: 1008 [2022-03-19 02:08:18,783 INFO L226 Difference]: Without dead ends: 536 [2022-03-19 02:08:18,784 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:08:18,786 INFO L912 BasicCegarLoop]: 214 mSDtfsCounter, 71 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:08:18,786 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 559 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 503 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 02:08:18,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2022-03-19 02:08:18,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 498. [2022-03-19 02:08:18,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 493 states have (on average 1.5436105476673427) internal successors, (761), 493 states have internal predecessors, (761), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:08:18,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 765 transitions. [2022-03-19 02:08:18,792 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 765 transitions. Word has length 145 [2022-03-19 02:08:18,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:08:18,792 INFO L478 AbstractCegarLoop]: Abstraction has 498 states and 765 transitions. [2022-03-19 02:08:18,793 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) [2022-03-19 02:08:18,793 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 765 transitions. [2022-03-19 02:08:18,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-19 02:08:18,794 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:08:18,794 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, 1] [2022-03-19 02:08:18,794 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-19 02:08:18,794 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:08:18,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:08:18,794 INFO L85 PathProgramCache]: Analyzing trace with hash 946421911, now seen corresponding path program 1 times [2022-03-19 02:08:18,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:08:18,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634112207] [2022-03-19 02:08:18,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:08:18,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:08:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:08:18,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:08:18,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:08:18,882 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 02:08:18,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:08:18,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634112207] [2022-03-19 02:08:18,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634112207] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:08:18,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:08:18,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:08:18,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568497538] [2022-03-19 02:08:18,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:08:18,883 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:08:18,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:08:18,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:08:18,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:08:18,883 INFO L87 Difference]: Start difference. First operand 498 states and 765 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) [2022-03-19 02:08:20,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:08:22,045 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:08:24,075 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:08:25,878 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:08:26,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:08:26,301 INFO L93 Difference]: Finished difference Result 1049 states and 1614 transitions. [2022-03-19 02:08:26,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:08:26,302 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 146 [2022-03-19 02:08:26,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:08:26,303 INFO L225 Difference]: With dead ends: 1049 [2022-03-19 02:08:26,303 INFO L226 Difference]: Without dead ends: 577 [2022-03-19 02:08:26,304 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:08:26,304 INFO L912 BasicCegarLoop]: 136 mSDtfsCounter, 136 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:08:26,304 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 396 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 485 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-03-19 02:08:26,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2022-03-19 02:08:26,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 498. [2022-03-19 02:08:26,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 493 states have (on average 1.5294117647058822) internal successors, (754), 493 states have internal predecessors, (754), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:08:26,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 758 transitions. [2022-03-19 02:08:26,310 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 758 transitions. Word has length 146 [2022-03-19 02:08:26,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:08:26,310 INFO L478 AbstractCegarLoop]: Abstraction has 498 states and 758 transitions. [2022-03-19 02:08:26,310 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) [2022-03-19 02:08:26,311 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 758 transitions. [2022-03-19 02:08:26,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-19 02:08:26,311 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:08:26,312 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, 1] [2022-03-19 02:08:26,312 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-19 02:08:26,312 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:08:26,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:08:26,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1337879975, now seen corresponding path program 1 times [2022-03-19 02:08:26,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:08:26,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75458999] [2022-03-19 02:08:26,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:08:26,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:08:26,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:08:26,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:08:26,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:08:26,413 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-19 02:08:26,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:08:26,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75458999] [2022-03-19 02:08:26,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75458999] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:08:26,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:08:26,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 02:08:26,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324141518] [2022-03-19 02:08:26,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:08:26,414 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 02:08:26,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:08:26,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 02:08:26,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:08:26,414 INFO L87 Difference]: Start difference. First operand 498 states and 758 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:08:29,177 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:08:31,203 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:08:31,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:08:31,497 INFO L93 Difference]: Finished difference Result 1437 states and 2208 transitions. [2022-03-19 02:08:31,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 02:08:31,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-03-19 02:08:31,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:08:31,499 INFO L225 Difference]: With dead ends: 1437 [2022-03-19 02:08:31,499 INFO L226 Difference]: Without dead ends: 965 [2022-03-19 02:08:31,500 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:08:31,500 INFO L912 BasicCegarLoop]: 257 mSDtfsCounter, 147 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 19 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-19 02:08:31,501 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 451 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 330 Invalid, 2 Unknown, 0 Unchecked, 5.1s Time] [2022-03-19 02:08:31,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2022-03-19 02:08:31,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 963. [2022-03-19 02:08:31,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 958 states have (on average 1.5208768267223383) internal successors, (1457), 958 states have internal predecessors, (1457), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:08:31,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1461 transitions. [2022-03-19 02:08:31,511 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1461 transitions. Word has length 147 [2022-03-19 02:08:31,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:08:31,511 INFO L478 AbstractCegarLoop]: Abstraction has 963 states and 1461 transitions. [2022-03-19 02:08:31,511 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:08:31,511 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1461 transitions. [2022-03-19 02:08:31,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-19 02:08:31,512 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:08:31,512 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, 1] [2022-03-19 02:08:31,512 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-19 02:08:31,513 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:08:31,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:08:31,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1021427034, now seen corresponding path program 1 times [2022-03-19 02:08:31,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:08:31,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339103164] [2022-03-19 02:08:31,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:08:31,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:08:31,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:08:31,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:08:31,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:08:31,594 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-03-19 02:08:31,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:08:31,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339103164] [2022-03-19 02:08:31,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339103164] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:08:31,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:08:31,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:08:31,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784715375] [2022-03-19 02:08:31,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:08:31,595 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:08:31,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:08:31,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:08:31,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:08:31,595 INFO L87 Difference]: Start difference. First operand 963 states and 1461 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) [2022-03-19 02:08:33,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:08:35,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:08:36,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:08:37,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:08:37,170 INFO L93 Difference]: Finished difference Result 1999 states and 3034 transitions. [2022-03-19 02:08:37,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:08:37,171 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 147 [2022-03-19 02:08:37,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:08:37,173 INFO L225 Difference]: With dead ends: 1999 [2022-03-19 02:08:37,173 INFO L226 Difference]: Without dead ends: 1062 [2022-03-19 02:08:37,174 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:08:37,175 INFO L912 BasicCegarLoop]: 248 mSDtfsCounter, 38 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-19 02:08:37,175 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 625 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-03-19 02:08:37,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2022-03-19 02:08:37,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 1015. [2022-03-19 02:08:37,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 1010 states have (on average 1.5198019801980198) internal successors, (1535), 1010 states have internal predecessors, (1535), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:08:37,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1539 transitions. [2022-03-19 02:08:37,186 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1539 transitions. Word has length 147 [2022-03-19 02:08:37,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:08:37,186 INFO L478 AbstractCegarLoop]: Abstraction has 1015 states and 1539 transitions. [2022-03-19 02:08:37,187 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) [2022-03-19 02:08:37,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1539 transitions. [2022-03-19 02:08:37,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-03-19 02:08:37,188 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:08:37,188 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, 1] [2022-03-19 02:08:37,188 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-19 02:08:37,188 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:08:37,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:08:37,189 INFO L85 PathProgramCache]: Analyzing trace with hash 704522437, now seen corresponding path program 1 times [2022-03-19 02:08:37,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:08:37,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263396042] [2022-03-19 02:08:37,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:08:37,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:08:37,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:08:37,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:08:37,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:08:37,275 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 02:08:37,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:08:37,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263396042] [2022-03-19 02:08:37,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263396042] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:08:37,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:08:37,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:08:37,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824674652] [2022-03-19 02:08:37,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:08:37,276 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:08:37,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:08:37,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:08:37,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:08:37,276 INFO L87 Difference]: Start difference. First operand 1015 states and 1539 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) [2022-03-19 02:08:39,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:08:41,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:08:43,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:08:43,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:08:43,567 INFO L93 Difference]: Finished difference Result 2075 states and 3145 transitions. [2022-03-19 02:08:43,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:08:43,568 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 [2022-03-19 02:08:43,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:08:43,571 INFO L225 Difference]: With dead ends: 2075 [2022-03-19 02:08:43,571 INFO L226 Difference]: Without dead ends: 1086 [2022-03-19 02:08:43,572 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:08:43,573 INFO L912 BasicCegarLoop]: 215 mSDtfsCounter, 70 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-19 02:08:43,573 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 561 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 503 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-03-19 02:08:43,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2022-03-19 02:08:43,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 1015. [2022-03-19 02:08:43,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 1010 states have (on average 1.5178217821782178) internal successors, (1533), 1010 states have internal predecessors, (1533), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:08:43,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1537 transitions. [2022-03-19 02:08:43,585 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1537 transitions. Word has length 149 [2022-03-19 02:08:43,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:08:43,585 INFO L478 AbstractCegarLoop]: Abstraction has 1015 states and 1537 transitions. [2022-03-19 02:08:43,585 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) [2022-03-19 02:08:43,585 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1537 transitions. [2022-03-19 02:08:43,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-03-19 02:08:43,587 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:08:43,587 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, 1] [2022-03-19 02:08:43,587 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-19 02:08:43,587 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:08:43,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:08:43,589 INFO L85 PathProgramCache]: Analyzing trace with hash -404859036, now seen corresponding path program 1 times [2022-03-19 02:08:43,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:08:43,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935608452] [2022-03-19 02:08:43,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:08:43,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:08:43,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:08:43,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:08:43,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:08:43,700 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 02:08:43,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:08:43,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935608452] [2022-03-19 02:08:43,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935608452] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:08:43,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:08:43,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:08:43,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278491778] [2022-03-19 02:08:43,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:08:43,701 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:08:43,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:08:43,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:08:43,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:08:43,702 INFO L87 Difference]: Start difference. First operand 1015 states and 1537 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) [2022-03-19 02:08:45,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:08:47,526 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:08:49,549 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:08:51,576 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:08:52,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:08:52,013 INFO L93 Difference]: Finished difference Result 2157 states and 3252 transitions. [2022-03-19 02:08:52,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:08:52,013 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 150 [2022-03-19 02:08:52,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:08:52,016 INFO L225 Difference]: With dead ends: 2157 [2022-03-19 02:08:52,016 INFO L226 Difference]: Without dead ends: 1168 [2022-03-19 02:08:52,018 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:08:52,018 INFO L912 BasicCegarLoop]: 136 mSDtfsCounter, 137 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 61 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-03-19 02:08:52,018 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 396 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 484 Invalid, 3 Unknown, 0 Unchecked, 8.3s Time] [2022-03-19 02:08:52,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2022-03-19 02:08:52,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1015. [2022-03-19 02:08:52,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 1010 states have (on average 1.503960396039604) internal successors, (1519), 1010 states have internal predecessors, (1519), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:08:52,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1523 transitions. [2022-03-19 02:08:52,032 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1523 transitions. Word has length 150 [2022-03-19 02:08:52,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:08:52,032 INFO L478 AbstractCegarLoop]: Abstraction has 1015 states and 1523 transitions. [2022-03-19 02:08:52,032 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) [2022-03-19 02:08:52,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1523 transitions. [2022-03-19 02:08:52,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-19 02:08:52,034 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:08:52,034 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, 1] [2022-03-19 02:08:52,034 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-19 02:08:52,034 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:08:52,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:08:52,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1090400704, now seen corresponding path program 1 times [2022-03-19 02:08:52,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:08:52,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715166411] [2022-03-19 02:08:52,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:08:52,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:08:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:08:52,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:08:52,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:08:52,138 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-19 02:08:52,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:08:52,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715166411] [2022-03-19 02:08:52,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715166411] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:08:52,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:08:52,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:08:52,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035084338] [2022-03-19 02:08:52,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:08:52,139 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:08:52,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:08:52,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:08:52,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:08:52,140 INFO L87 Difference]: Start difference. First operand 1015 states and 1523 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) [2022-03-19 02:08:53,823 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 [] [2022-03-19 02:08:55,857 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:08:57,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:08:58,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:08:58,230 INFO L93 Difference]: Finished difference Result 2059 states and 3087 transitions. [2022-03-19 02:08:58,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:08:58,230 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 [2022-03-19 02:08:58,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:08:58,233 INFO L225 Difference]: With dead ends: 2059 [2022-03-19 02:08:58,233 INFO L226 Difference]: Without dead ends: 1070 [2022-03-19 02:08:58,234 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:08:58,234 INFO L912 BasicCegarLoop]: 224 mSDtfsCounter, 61 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-19 02:08:58,235 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 579 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-03-19 02:08:58,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2022-03-19 02:08:58,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1015. [2022-03-19 02:08:58,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 1010 states have (on average 1.501980198019802) internal successors, (1517), 1010 states have internal predecessors, (1517), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:08:58,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1521 transitions. [2022-03-19 02:08:58,246 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1521 transitions. Word has length 153 [2022-03-19 02:08:58,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:08:58,247 INFO L478 AbstractCegarLoop]: Abstraction has 1015 states and 1521 transitions. [2022-03-19 02:08:58,247 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) [2022-03-19 02:08:58,247 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1521 transitions. [2022-03-19 02:08:58,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-03-19 02:08:58,248 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:08:58,248 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, 1] [2022-03-19 02:08:58,248 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-19 02:08:58,249 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:08:58,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:08:58,249 INFO L85 PathProgramCache]: Analyzing trace with hash 97133601, now seen corresponding path program 1 times [2022-03-19 02:08:58,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:08:58,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291685287] [2022-03-19 02:08:58,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:08:58,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:08:58,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:08:58,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:08:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:08:58,338 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-19 02:08:58,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:08:58,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291685287] [2022-03-19 02:08:58,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291685287] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:08:58,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:08:58,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:08:58,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434573752] [2022-03-19 02:08:58,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:08:58,339 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:08:58,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:08:58,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:08:58,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:08:58,339 INFO L87 Difference]: Start difference. First operand 1015 states and 1521 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) [2022-03-19 02:09:01,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:09:03,175 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:09:03,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:09:03,956 INFO L93 Difference]: Finished difference Result 2157 states and 3220 transitions. [2022-03-19 02:09:03,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:09:03,956 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 154 [2022-03-19 02:09:03,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:09:03,959 INFO L225 Difference]: With dead ends: 2157 [2022-03-19 02:09:03,959 INFO L226 Difference]: Without dead ends: 1168 [2022-03-19 02:09:03,961 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:09:03,961 INFO L912 BasicCegarLoop]: 136 mSDtfsCounter, 138 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-19 02:09:03,961 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 396 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 485 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-03-19 02:09:03,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2022-03-19 02:09:03,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1015. [2022-03-19 02:09:03,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 1010 states have (on average 1.488118811881188) internal successors, (1503), 1010 states have internal predecessors, (1503), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:09:03,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1507 transitions. [2022-03-19 02:09:03,984 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1507 transitions. Word has length 154 [2022-03-19 02:09:03,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:09:03,984 INFO L478 AbstractCegarLoop]: Abstraction has 1015 states and 1507 transitions. [2022-03-19 02:09:03,984 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) [2022-03-19 02:09:03,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1507 transitions. [2022-03-19 02:09:03,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-03-19 02:09:03,985 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:09:03,985 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, 1] [2022-03-19 02:09:03,985 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-19 02:09:03,986 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:09:03,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:09:03,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1214702892, now seen corresponding path program 1 times [2022-03-19 02:09:03,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:09:03,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119180248] [2022-03-19 02:09:03,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:09:03,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:09:04,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:09:04,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:09:04,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:09:04,076 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-19 02:09:04,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:09:04,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119180248] [2022-03-19 02:09:04,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119180248] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:09:04,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:09:04,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:09:04,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690685163] [2022-03-19 02:09:04,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:09:04,077 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:09:04,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:09:04,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:09:04,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:09:04,077 INFO L87 Difference]: Start difference. First operand 1015 states and 1507 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) [2022-03-19 02:09:05,743 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:09:07,772 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:09:09,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:09:09,459 INFO L93 Difference]: Finished difference Result 2055 states and 3049 transitions. [2022-03-19 02:09:09,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:09:09,460 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 [2022-03-19 02:09:09,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:09:09,462 INFO L225 Difference]: With dead ends: 2055 [2022-03-19 02:09:09,462 INFO L226 Difference]: Without dead ends: 1066 [2022-03-19 02:09:09,463 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:09:09,464 INFO L912 BasicCegarLoop]: 227 mSDtfsCounter, 51 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:09:09,464 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 585 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 480 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-03-19 02:09:09,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2022-03-19 02:09:09,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1015. [2022-03-19 02:09:09,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 1010 states have (on average 1.4861386138613861) internal successors, (1501), 1010 states have internal predecessors, (1501), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:09:09,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1505 transitions. [2022-03-19 02:09:09,475 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1505 transitions. Word has length 157 [2022-03-19 02:09:09,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:09:09,476 INFO L478 AbstractCegarLoop]: Abstraction has 1015 states and 1505 transitions. [2022-03-19 02:09:09,476 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) [2022-03-19 02:09:09,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1505 transitions. [2022-03-19 02:09:09,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-03-19 02:09:09,477 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:09:09,477 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, 1] [2022-03-19 02:09:09,477 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-19 02:09:09,477 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:09:09,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:09:09,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1157233019, now seen corresponding path program 1 times [2022-03-19 02:09:09,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:09:09,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442059485] [2022-03-19 02:09:09,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:09:09,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:09:09,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:09:09,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:09:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:09:09,593 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-19 02:09:09,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:09:09,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442059485] [2022-03-19 02:09:09,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442059485] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:09:09,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:09:09,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:09:09,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767220269] [2022-03-19 02:09:09,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:09:09,594 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:09:09,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:09:09,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:09:09,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:09:09,596 INFO L87 Difference]: Start difference. First operand 1015 states and 1505 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) [2022-03-19 02:09:11,055 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:09:13,288 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:09:15,311 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:09:15,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:09:15,748 INFO L93 Difference]: Finished difference Result 2241 states and 3316 transitions. [2022-03-19 02:09:15,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:09:15,749 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 [2022-03-19 02:09:15,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:09:15,752 INFO L225 Difference]: With dead ends: 2241 [2022-03-19 02:09:15,752 INFO L226 Difference]: Without dead ends: 1252 [2022-03-19 02:09:15,753 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:09:15,753 INFO L912 BasicCegarLoop]: 136 mSDtfsCounter, 129 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-19 02:09:15,753 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 396 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-03-19 02:09:15,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2022-03-19 02:09:15,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1085. [2022-03-19 02:09:15,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1085 states, 1080 states have (on average 1.4805555555555556) internal successors, (1599), 1080 states have internal predecessors, (1599), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:09:15,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1085 states to 1085 states and 1603 transitions. [2022-03-19 02:09:15,768 INFO L78 Accepts]: Start accepts. Automaton has 1085 states and 1603 transitions. Word has length 157 [2022-03-19 02:09:15,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:09:15,768 INFO L478 AbstractCegarLoop]: Abstraction has 1085 states and 1603 transitions. [2022-03-19 02:09:15,768 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) [2022-03-19 02:09:15,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1603 transitions. [2022-03-19 02:09:15,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-03-19 02:09:15,771 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:09:15,772 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, 1] [2022-03-19 02:09:15,772 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-19 02:09:15,772 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:09:15,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:09:15,772 INFO L85 PathProgramCache]: Analyzing trace with hash 336781482, now seen corresponding path program 1 times [2022-03-19 02:09:15,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:09:15,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038677940] [2022-03-19 02:09:15,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:09:15,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:09:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:09:15,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:09:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:09:15,868 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-19 02:09:15,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:09:15,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038677940] [2022-03-19 02:09:15,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038677940] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:09:15,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:09:15,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:09:15,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851434086] [2022-03-19 02:09:15,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:09:15,869 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:09:15,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:09:15,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:09:15,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:09:15,870 INFO L87 Difference]: Start difference. First operand 1085 states and 1603 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) [2022-03-19 02:09:17,695 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:09:19,720 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:09:21,750 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:09:23,775 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:09:24,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:09:24,177 INFO L93 Difference]: Finished difference Result 2183 states and 3225 transitions. [2022-03-19 02:09:24,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:09:24,178 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 158 [2022-03-19 02:09:24,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:09:24,181 INFO L225 Difference]: With dead ends: 2183 [2022-03-19 02:09:24,181 INFO L226 Difference]: Without dead ends: 1124 [2022-03-19 02:09:24,182 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:09:24,182 INFO L912 BasicCegarLoop]: 229 mSDtfsCounter, 41 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-03-19 02:09:24,183 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 589 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 474 Invalid, 3 Unknown, 0 Unchecked, 8.3s Time] [2022-03-19 02:09:24,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2022-03-19 02:09:24,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 1085. [2022-03-19 02:09:24,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1085 states, 1080 states have (on average 1.4787037037037036) internal successors, (1597), 1080 states have internal predecessors, (1597), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:09:24,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1085 states to 1085 states and 1601 transitions. [2022-03-19 02:09:24,196 INFO L78 Accepts]: Start accepts. Automaton has 1085 states and 1601 transitions. Word has length 158 [2022-03-19 02:09:24,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:09:24,196 INFO L478 AbstractCegarLoop]: Abstraction has 1085 states and 1601 transitions. [2022-03-19 02:09:24,196 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) [2022-03-19 02:09:24,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1601 transitions. [2022-03-19 02:09:24,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-03-19 02:09:24,197 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:09:24,197 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, 1] [2022-03-19 02:09:24,197 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-19 02:09:24,198 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:09:24,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:09:24,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1144606736, now seen corresponding path program 1 times [2022-03-19 02:09:24,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:09:24,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579541185] [2022-03-19 02:09:24,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:09:24,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:09:24,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:09:24,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:09:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:09:24,294 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-19 02:09:24,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:09:24,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579541185] [2022-03-19 02:09:24,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579541185] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:09:24,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:09:24,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:09:24,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686929768] [2022-03-19 02:09:24,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:09:24,294 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:09:24,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:09:24,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:09:24,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:09:24,295 INFO L87 Difference]: Start difference. First operand 1085 states and 1601 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:09:25,930 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:09:27,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:09:29,149 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:09:30,870 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 [] [2022-03-19 02:09:31,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:09:31,254 INFO L93 Difference]: Finished difference Result 2177 states and 3214 transitions. [2022-03-19 02:09:31,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:09:31,254 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 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 158 [2022-03-19 02:09:31,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:09:31,257 INFO L225 Difference]: With dead ends: 2177 [2022-03-19 02:09:31,257 INFO L226 Difference]: Without dead ends: 1118 [2022-03-19 02:09:31,258 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 [2022-03-19 02:09:31,259 INFO L912 BasicCegarLoop]: 230 mSDtfsCounter, 35 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-19 02:09:31,259 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 591 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-03-19 02:09:31,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2022-03-19 02:09:31,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 1085. [2022-03-19 02:09:31,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1085 states, 1080 states have (on average 1.4768518518518519) internal successors, (1595), 1080 states have internal predecessors, (1595), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:09:31,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1085 states to 1085 states and 1599 transitions. [2022-03-19 02:09:31,272 INFO L78 Accepts]: Start accepts. Automaton has 1085 states and 1599 transitions. Word has length 158 [2022-03-19 02:09:31,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:09:31,273 INFO L478 AbstractCegarLoop]: Abstraction has 1085 states and 1599 transitions. [2022-03-19 02:09:31,273 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:09:31,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1599 transitions. [2022-03-19 02:09:31,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-03-19 02:09:31,274 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:09:31,274 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:09:31,274 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-19 02:09:31,274 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:09:31,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:09:31,275 INFO L85 PathProgramCache]: Analyzing trace with hash 79353004, now seen corresponding path program 1 times [2022-03-19 02:09:31,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:09:31,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249415372] [2022-03-19 02:09:31,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:09:31,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:09:31,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:09:31,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:09:31,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:09:31,397 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-03-19 02:09:31,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:09:31,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249415372] [2022-03-19 02:09:31,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249415372] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:09:31,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:09:31,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:09:31,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643036476] [2022-03-19 02:09:31,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:09:31,397 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:09:31,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:09:31,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:09:31,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:09:31,398 INFO L87 Difference]: Start difference. First operand 1085 states and 1599 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) [2022-03-19 02:09:33,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:09:33,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:09:33,767 INFO L93 Difference]: Finished difference Result 2171 states and 3204 transitions. [2022-03-19 02:09:33,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:09:33,768 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 165 [2022-03-19 02:09:33,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:09:33,770 INFO L225 Difference]: With dead ends: 2171 [2022-03-19 02:09:33,771 INFO L226 Difference]: Without dead ends: 1112 [2022-03-19 02:09:33,772 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:09:33,772 INFO L912 BasicCegarLoop]: 252 mSDtfsCounter, 41 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 02:09:33,772 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 633 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 02:09:33,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2022-03-19 02:09:33,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 1085. [2022-03-19 02:09:33,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1085 states, 1080 states have (on average 1.475) internal successors, (1593), 1080 states have internal predecessors, (1593), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:09:33,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1085 states to 1085 states and 1597 transitions. [2022-03-19 02:09:33,786 INFO L78 Accepts]: Start accepts. Automaton has 1085 states and 1597 transitions. Word has length 165 [2022-03-19 02:09:33,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:09:33,786 INFO L478 AbstractCegarLoop]: Abstraction has 1085 states and 1597 transitions. [2022-03-19 02:09:33,786 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) [2022-03-19 02:09:33,786 INFO L276 IsEmpty]: Start isEmpty. Operand 1085 states and 1597 transitions. [2022-03-19 02:09:33,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-03-19 02:09:33,788 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:09:33,788 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] [2022-03-19 02:09:33,788 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-19 02:09:33,788 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:09:33,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:09:33,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1069512886, now seen corresponding path program 1 times [2022-03-19 02:09:33,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:09:33,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702688713] [2022-03-19 02:09:33,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:09:33,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:09:33,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:09:33,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:09:33,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:09:33,879 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-03-19 02:09:33,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:09:33,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702688713] [2022-03-19 02:09:33,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702688713] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:09:33,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:09:33,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 02:09:33,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029618573] [2022-03-19 02:09:33,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:09:33,880 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 02:09:33,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:09:33,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 02:09:33,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:09:33,880 INFO L87 Difference]: Start difference. First operand 1085 states and 1597 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:09:35,822 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:09:37,851 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:09:39,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:09:40,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:09:40,002 INFO L93 Difference]: Finished difference Result 2171 states and 3201 transitions. [2022-03-19 02:09:40,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 02:09:40,002 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 166 [2022-03-19 02:09:40,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:09:40,005 INFO L225 Difference]: With dead ends: 2171 [2022-03-19 02:09:40,005 INFO L226 Difference]: Without dead ends: 1112 [2022-03-19 02:09:40,006 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:09:40,007 INFO L912 BasicCegarLoop]: 239 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-19 02:09:40,007 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 433 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 281 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-03-19 02:09:40,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2022-03-19 02:09:40,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 1112. [2022-03-19 02:09:40,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1107 states have (on average 1.4706413730803976) internal successors, (1628), 1107 states have internal predecessors, (1628), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:09:40,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1632 transitions. [2022-03-19 02:09:40,024 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1632 transitions. Word has length 166 [2022-03-19 02:09:40,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:09:40,024 INFO L478 AbstractCegarLoop]: Abstraction has 1112 states and 1632 transitions. [2022-03-19 02:09:40,024 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:09:40,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1632 transitions. [2022-03-19 02:09:40,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-03-19 02:09:40,025 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:09:40,026 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] [2022-03-19 02:09:40,026 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-19 02:09:40,026 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:09:40,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:09:40,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1283275945, now seen corresponding path program 1 times [2022-03-19 02:09:40,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:09:40,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192983663] [2022-03-19 02:09:40,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:09:40,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:09:40,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:09:40,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:09:40,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:09:40,110 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-03-19 02:09:40,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:09:40,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192983663] [2022-03-19 02:09:40,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192983663] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:09:40,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:09:40,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 02:09:40,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622668561] [2022-03-19 02:09:40,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:09:40,111 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 02:09:40,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:09:40,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 02:09:40,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:09:40,111 INFO L87 Difference]: Start difference. First operand 1112 states and 1632 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:09:42,447 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:09:43,609 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:09:43,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:09:43,865 INFO L93 Difference]: Finished difference Result 2200 states and 3237 transitions. [2022-03-19 02:09:43,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 02:09:43,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 166 [2022-03-19 02:09:43,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:09:43,868 INFO L225 Difference]: With dead ends: 2200 [2022-03-19 02:09:43,868 INFO L226 Difference]: Without dead ends: 1114 [2022-03-19 02:09:43,873 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 02:09:43,874 INFO L912 BasicCegarLoop]: 227 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-19 02:09:43,874 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 412 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-19 02:09:43,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2022-03-19 02:09:43,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 1114. [2022-03-19 02:09:43,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1114 states, 1109 states have (on average 1.4697926059513076) internal successors, (1630), 1109 states have internal predecessors, (1630), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:09:43,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 1634 transitions. [2022-03-19 02:09:43,894 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 1634 transitions. Word has length 166 [2022-03-19 02:09:43,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:09:43,894 INFO L478 AbstractCegarLoop]: Abstraction has 1114 states and 1634 transitions. [2022-03-19 02:09:43,894 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:09:43,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 1634 transitions. [2022-03-19 02:09:43,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-03-19 02:09:43,895 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:09:43,896 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, 1, 1] [2022-03-19 02:09:43,896 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-19 02:09:43,896 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:09:43,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:09:43,896 INFO L85 PathProgramCache]: Analyzing trace with hash -282029373, now seen corresponding path program 1 times [2022-03-19 02:09:43,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:09:43,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105243282] [2022-03-19 02:09:43,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:09:43,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:09:43,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:09:44,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:09:44,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:09:44,003 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-19 02:09:44,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:09:44,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105243282] [2022-03-19 02:09:44,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105243282] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:09:44,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:09:44,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:09:44,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548138796] [2022-03-19 02:09:44,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:09:44,004 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:09:44,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:09:44,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:09:44,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:09:44,005 INFO L87 Difference]: Start difference. First operand 1114 states and 1634 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:09:46,012 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:09:46,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:09:46,464 INFO L93 Difference]: Finished difference Result 2298 states and 3367 transitions. [2022-03-19 02:09:46,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:09:46,464 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 168 [2022-03-19 02:09:46,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:09:46,467 INFO L225 Difference]: With dead ends: 2298 [2022-03-19 02:09:46,467 INFO L226 Difference]: Without dead ends: 1212 [2022-03-19 02:09:46,468 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:09:46,468 INFO L912 BasicCegarLoop]: 239 mSDtfsCounter, 78 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:09:46,468 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 606 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 555 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 02:09:46,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2022-03-19 02:09:46,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 1114. [2022-03-19 02:09:46,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1114 states, 1109 states have (on average 1.4679891794409379) internal successors, (1628), 1109 states have internal predecessors, (1628), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:09:46,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 1632 transitions. [2022-03-19 02:09:46,483 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 1632 transitions. Word has length 168 [2022-03-19 02:09:46,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:09:46,483 INFO L478 AbstractCegarLoop]: Abstraction has 1114 states and 1632 transitions. [2022-03-19 02:09:46,483 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:09:46,483 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 1632 transitions. [2022-03-19 02:09:46,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-03-19 02:09:46,485 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:09:46,485 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:09:46,485 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-19 02:09:46,485 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:09:46,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:09:46,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1600727037, now seen corresponding path program 1 times [2022-03-19 02:09:46,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:09:46,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235861785] [2022-03-19 02:09:46,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:09:46,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:09:46,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:09:46,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:09:46,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:09:46,617 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-19 02:09:46,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:09:46,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235861785] [2022-03-19 02:09:46,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235861785] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:09:46,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:09:46,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 02:09:46,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974177294] [2022-03-19 02:09:46,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:09:46,617 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 02:09:46,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:09:46,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 02:09:46,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 02:09:46,618 INFO L87 Difference]: Start difference. First operand 1114 states and 1632 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:09:48,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:09:49,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:09:49,063 INFO L93 Difference]: Finished difference Result 2354 states and 3441 transitions. [2022-03-19 02:09:49,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 02:09:49,063 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 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 175 [2022-03-19 02:09:49,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:09:49,065 INFO L225 Difference]: With dead ends: 2354 [2022-03-19 02:09:49,065 INFO L226 Difference]: Without dead ends: 1268 [2022-03-19 02:09:49,066 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 02:09:49,066 INFO L912 BasicCegarLoop]: 142 mSDtfsCounter, 126 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:09:49,066 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 408 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 489 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 02:09:49,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2022-03-19 02:09:49,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 1110. [2022-03-19 02:09:49,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 1105 states have (on average 1.4660633484162895) internal successors, (1620), 1105 states have internal predecessors, (1620), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:09:49,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1624 transitions. [2022-03-19 02:09:49,080 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1624 transitions. Word has length 175 [2022-03-19 02:09:49,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:09:49,080 INFO L478 AbstractCegarLoop]: Abstraction has 1110 states and 1624 transitions. [2022-03-19 02:09:49,080 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:09:49,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1624 transitions. [2022-03-19 02:09:49,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-03-19 02:09:49,082 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:09:49,082 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, 1, 1, 1] [2022-03-19 02:09:49,082 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-19 02:09:49,082 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:09:49,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:09:49,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1707771303, now seen corresponding path program 1 times [2022-03-19 02:09:49,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:09:49,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828568747] [2022-03-19 02:09:49,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:09:49,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:09:49,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:09:49,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:09:49,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:09:49,536 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-03-19 02:09:49,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:09:49,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828568747] [2022-03-19 02:09:49,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828568747] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:09:49,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:09:49,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-19 02:09:49,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79361756] [2022-03-19 02:09:49,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:09:49,537 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-19 02:09:49,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-19 02:09:49,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-19 02:09:49,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-19 02:09:49,537 INFO L87 Difference]: Start difference. First operand 1110 states and 1624 transitions. Second operand has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 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) [2022-03-19 02:09:52,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:09:54,773 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:09:56,802 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:09:58,828 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 02:09:59,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:09:59,307 INFO L93 Difference]: Finished difference Result 2213 states and 3240 transitions. [2022-03-19 02:09:59,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-19 02:09:59,308 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 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 177 [2022-03-19 02:09:59,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:09:59,311 INFO L225 Difference]: With dead ends: 2213 [2022-03-19 02:09:59,311 INFO L226 Difference]: Without dead ends: 1110 [2022-03-19 02:09:59,313 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 [2022-03-19 02:09:59,313 INFO L912 BasicCegarLoop]: 225 mSDtfsCounter, 7 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-03-19 02:09:59,313 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 922 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 457 Invalid, 3 Unknown, 0 Unchecked, 9.7s Time] [2022-03-19 02:09:59,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2022-03-19 02:09:59,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 1110. [2022-03-19 02:09:59,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 1105 states have (on average 1.4651583710407239) internal successors, (1619), 1105 states have internal predecessors, (1619), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:09:59,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1623 transitions. [2022-03-19 02:09:59,326 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1623 transitions. Word has length 177 [2022-03-19 02:09:59,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:09:59,327 INFO L478 AbstractCegarLoop]: Abstraction has 1110 states and 1623 transitions. [2022-03-19 02:09:59,327 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 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) [2022-03-19 02:09:59,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1623 transitions. [2022-03-19 02:09:59,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-03-19 02:09:59,328 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:09:59,328 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, 1, 1, 1] [2022-03-19 02:09:59,328 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-19 02:09:59,328 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:09:59,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:09:59,329 INFO L85 PathProgramCache]: Analyzing trace with hash -115415960, now seen corresponding path program 1 times [2022-03-19 02:09:59,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:09:59,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627115769] [2022-03-19 02:09:59,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:09:59,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:09:59,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:10:00,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:10:00,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:10:00,027 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 14 proven. 169 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-03-19 02:10:00,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:10:00,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627115769] [2022-03-19 02:10:00,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627115769] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:10:00,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [332647790] [2022-03-19 02:10:00,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:10:00,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:10:00,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:10:00,029 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) [2022-03-19 02:10:00,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-19 02:10:00,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:10:00,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 207 conjunts are in the unsatisfiable core [2022-03-19 02:10:00,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:10:01,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:01,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:01,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:01,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:01,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:01,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:01,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:01,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:01,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:01,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:01,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:01,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:01,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:01,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:01,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:01,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:01,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:01,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:01,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:01,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:01,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:01,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:01,329 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 53298 treesize of output 48162 [2022-03-19 02:10:01,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:01,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:01,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:01,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:01,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:01,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:01,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:02,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:02,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:02,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:02,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:02,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:02,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:02,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:02,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:02,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:02,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:02,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:02,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:02,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:02,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:02,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:02,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:02,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:02,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:02,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:02,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:02,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:02,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:02,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:02,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:02,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:10:02,528 INFO L190 IndexEqualityManager]: detected not equals via solver