/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.12.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 23:34:01,959 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 23:34:01,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 23:34:02,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 23:34:02,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 23:34:02,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 23:34:02,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 23:34:02,032 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 23:34:02,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 23:34:02,035 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 23:34:02,036 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 23:34:02,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 23:34:02,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 23:34:02,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 23:34:02,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 23:34:02,038 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 23:34:02,039 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 23:34:02,039 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 23:34:02,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 23:34:02,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 23:34:02,042 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 23:34:02,049 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 23:34:02,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 23:34:02,052 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 23:34:02,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 23:34:02,054 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-17 23:34:02,054 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-17 23:34:02,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-17 23:34:02,055 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-17 23:34:02,055 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-17 23:34:02,056 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-03-17 23:34:02,059 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 23:34:02,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 23:34:02,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 23:34:02,065 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-03-17 23:34:02,088 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 23:34:02,089 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 23:34:02,090 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-17 23:34:02,090 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-17 23:34:02,091 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-17 23:34:02,091 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-17 23:34:02,091 INFO L138 SettingsManager]: * Use SBE=true [2022-03-17 23:34:02,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 23:34:02,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 23:34:02,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 23:34:02,092 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 23:34:02,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 23:34:02,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 23:34:02,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 23:34:02,092 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 23:34:02,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 23:34:02,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 23:34:02,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 23:34:02,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 23:34:02,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 23:34:02,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 23:34:02,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-17 23:34:02,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-17 23:34:02,093 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 23:34:02,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-17 23:34:02,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-17 23:34:02,093 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-03-17 23:34:02,094 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-03-17 23:34:02,094 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 23:34:02,094 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 23:34:02,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 23:34:02,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 23:34:02,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 23:34:02,288 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 23:34:02,288 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 23:34:02,289 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.12.i.cil-1.c [2022-03-17 23:34:02,337 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72f92c022/c964f70f62094c0a96af82c1c11d9ea5/FLAGfbbeb1158 [2022-03-17 23:34:02,751 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 23:34:02,751 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.12.i.cil-1.c [2022-03-17 23:34:02,767 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72f92c022/c964f70f62094c0a96af82c1c11d9ea5/FLAGfbbeb1158 [2022-03-17 23:34:03,110 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72f92c022/c964f70f62094c0a96af82c1c11d9ea5 [2022-03-17 23:34:03,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 23:34:03,113 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 23:34:03,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 23:34:03,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 23:34:03,118 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 23:34:03,119 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:34:03" (1/1) ... [2022-03-17 23:34:03,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61fba549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:03, skipping insertion in model container [2022-03-17 23:34:03,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:34:03" (1/1) ... [2022-03-17 23:34:03,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 23:34:03,177 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 23:34:03,403 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.12.i.cil-1.c[75166,75179] [2022-03-17 23:34:03,412 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 23:34:03,420 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 23:34:03,496 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.12.i.cil-1.c[75166,75179] [2022-03-17 23:34:03,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 23:34:03,509 INFO L208 MainTranslator]: Completed translation [2022-03-17 23:34:03,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:03 WrapperNode [2022-03-17 23:34:03,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 23:34:03,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 23:34:03,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 23:34:03,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 23:34:03,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:03" (1/1) ... [2022-03-17 23:34:03,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:03" (1/1) ... [2022-03-17 23:34:03,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:03" (1/1) ... [2022-03-17 23:34:03,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:03" (1/1) ... [2022-03-17 23:34:03,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:03" (1/1) ... [2022-03-17 23:34:03,581 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:03" (1/1) ... [2022-03-17 23:34:03,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:03" (1/1) ... [2022-03-17 23:34:03,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 23:34:03,588 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 23:34:03,588 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 23:34:03,588 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 23:34:03,589 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:03" (1/1) ... [2022-03-17 23:34:03,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 23:34:03,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:34:03,610 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) [2022-03-17 23:34:03,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 23:34:03,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 23:34:03,636 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 23:34:03,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-17 23:34:03,637 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-17 23:34:03,637 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 23:34:03,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-17 23:34:03,638 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-17 23:34:03,638 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-17 23:34:03,616 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 [2022-03-17 23:34:03,639 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-17 23:34:03,640 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 23:34:03,640 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 23:34:03,640 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 23:34:03,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 23:34:03,640 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-17 23:34:03,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-17 23:34:03,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-17 23:34:03,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-17 23:34:03,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-17 23:34:03,640 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-17 23:34:03,640 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-17 23:34:03,641 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-17 23:34:03,641 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-17 23:34:03,641 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-17 23:34:03,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-17 23:34:03,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-17 23:34:03,641 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 23:34:03,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-17 23:34:03,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 23:34:03,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-17 23:34:03,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 23:34:03,641 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-17 23:34:03,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-17 23:34:03,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 23:34:03,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 23:34:03,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 23:34:03,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-17 23:34:03,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-17 23:34:03,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-17 23:34:03,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-17 23:34:03,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 23:34:03,788 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 23:34:03,790 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 23:34:04,631 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 23:34:05,016 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-17 23:34:05,016 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-17 23:34:05,024 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 23:34:05,030 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 23:34:05,030 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-17 23:34:05,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:34:05 BoogieIcfgContainer [2022-03-17 23:34:05,031 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 23:34:05,032 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 23:34:05,032 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 23:34:05,033 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 23:34:05,035 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:34:05" (1/1) ... [2022-03-17 23:34:05,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 11:34:05 BasicIcfg [2022-03-17 23:34:05,067 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 23:34:05,068 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 23:34:05,068 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 23:34:05,070 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 23:34:05,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 11:34:03" (1/4) ... [2022-03-17 23:34:05,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e302d3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:34:05, skipping insertion in model container [2022-03-17 23:34:05,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:34:03" (2/4) ... [2022-03-17 23:34:05,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e302d3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:34:05, skipping insertion in model container [2022-03-17 23:34:05,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 11:34:05" (3/4) ... [2022-03-17 23:34:05,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e302d3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 11:34:05, skipping insertion in model container [2022-03-17 23:34:05,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 11:34:05" (4/4) ... [2022-03-17 23:34:05,072 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.12.i.cil-1.cqvasr [2022-03-17 23:34:05,076 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-17 23:34:05,076 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 23:34:05,104 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 23:34:05,108 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 [2022-03-17 23:34:05,108 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 23:34:05,120 INFO L276 IsEmpty]: Start isEmpty. Operand has 160 states, 152 states have (on average 1.7105263157894737) internal successors, (260), 153 states have internal predecessors, (260), 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) [2022-03-17 23:34:05,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-17 23:34:05,125 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:34:05,125 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:34:05,126 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:34:05,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:34:05,130 INFO L85 PathProgramCache]: Analyzing trace with hash -796355078, now seen corresponding path program 1 times [2022-03-17 23:34:05,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:34:05,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83194321] [2022-03-17 23:34:05,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:34:05,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:34:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:05,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:34:05,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:05,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:34:05,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:34:05,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83194321] [2022-03-17 23:34:05,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83194321] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:34:05,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:34:05,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:34:05,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477512663] [2022-03-17 23:34:05,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:34:05,545 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:34:05,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:34:05,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:34:05,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:34:05,563 INFO L87 Difference]: Start difference. First operand has 160 states, 152 states have (on average 1.7105263157894737) internal successors, (260), 153 states have internal predecessors, (260), 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 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:06,884 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:08,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:10,069 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:10,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:34:10,545 INFO L93 Difference]: Finished difference Result 338 states and 568 transitions. [2022-03-17 23:34:10,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:34:10,547 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-03-17 23:34:10,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:34:10,553 INFO L225 Difference]: With dead ends: 338 [2022-03-17 23:34:10,553 INFO L226 Difference]: Without dead ends: 172 [2022-03-17 23:34:10,555 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:34:10,558 INFO L912 BasicCegarLoop]: 233 mSDtfsCounter, 34 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:34:10,558 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 619 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-03-17 23:34:10,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-03-17 23:34:10,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 155. [2022-03-17 23:34:10,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 150 states have (on average 1.56) internal successors, (234), 150 states have internal predecessors, (234), 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) [2022-03-17 23:34:10,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 238 transitions. [2022-03-17 23:34:10,611 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 238 transitions. Word has length 48 [2022-03-17 23:34:10,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:34:10,612 INFO L478 AbstractCegarLoop]: Abstraction has 155 states and 238 transitions. [2022-03-17 23:34:10,612 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:10,612 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 238 transitions. [2022-03-17 23:34:10,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-03-17 23:34:10,618 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:34:10,623 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] [2022-03-17 23:34:10,623 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 23:34:10,623 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:34:10,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:34:10,624 INFO L85 PathProgramCache]: Analyzing trace with hash -436663212, now seen corresponding path program 1 times [2022-03-17 23:34:10,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:34:10,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253699414] [2022-03-17 23:34:10,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:34:10,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:34:10,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:10,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:34:10,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:10,776 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:34:10,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:34:10,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253699414] [2022-03-17 23:34:10,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253699414] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:34:10,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:34:10,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:34:10,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824389991] [2022-03-17 23:34:10,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:34:10,777 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:34:10,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:34:10,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:34:10,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:34:10,778 INFO L87 Difference]: Start difference. First operand 155 states and 238 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:14,815 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 [] [2022-03-17 23:34:15,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:34:15,432 INFO L93 Difference]: Finished difference Result 405 states and 628 transitions. [2022-03-17 23:34:15,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:34:15,432 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 61 [2022-03-17 23:34:15,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:34:15,434 INFO L225 Difference]: With dead ends: 405 [2022-03-17 23:34:15,434 INFO L226 Difference]: Without dead ends: 276 [2022-03-17 23:34:15,435 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:34:15,436 INFO L912 BasicCegarLoop]: 271 mSDtfsCounter, 151 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:34:15,436 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 654 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 633 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-03-17 23:34:15,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-03-17 23:34:15,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 171. [2022-03-17 23:34:15,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 166 states have (on average 1.5602409638554218) internal successors, (259), 166 states have internal predecessors, (259), 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) [2022-03-17 23:34:15,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 263 transitions. [2022-03-17 23:34:15,444 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 263 transitions. Word has length 61 [2022-03-17 23:34:15,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:34:15,444 INFO L478 AbstractCegarLoop]: Abstraction has 171 states and 263 transitions. [2022-03-17 23:34:15,445 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:15,445 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 263 transitions. [2022-03-17 23:34:15,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-03-17 23:34:15,446 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:34:15,446 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] [2022-03-17 23:34:15,446 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-17 23:34:15,446 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:34:15,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:34:15,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1497110772, now seen corresponding path program 1 times [2022-03-17 23:34:15,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:34:15,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681354501] [2022-03-17 23:34:15,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:34:15,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:34:15,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:15,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:34:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:15,599 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:34:15,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:34:15,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681354501] [2022-03-17 23:34:15,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681354501] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:34:15,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:34:15,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:34:15,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818530683] [2022-03-17 23:34:15,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:34:15,601 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:34:15,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:34:15,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:34:15,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:34:15,601 INFO L87 Difference]: Start difference. First operand 171 states and 263 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:18,474 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 [] [2022-03-17 23:34:20,343 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:20,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:34:20,729 INFO L93 Difference]: Finished difference Result 332 states and 509 transitions. [2022-03-17 23:34:20,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:34:20,729 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 62 [2022-03-17 23:34:20,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:34:20,730 INFO L225 Difference]: With dead ends: 332 [2022-03-17 23:34:20,730 INFO L226 Difference]: Without dead ends: 187 [2022-03-17 23:34:20,731 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 [2022-03-17 23:34:20,732 INFO L912 BasicCegarLoop]: 192 mSDtfsCounter, 28 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:34:20,732 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 497 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 365 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-17 23:34:20,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-03-17 23:34:20,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 171. [2022-03-17 23:34:20,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 166 states have (on average 1.5542168674698795) internal successors, (258), 166 states have internal predecessors, (258), 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) [2022-03-17 23:34:20,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 262 transitions. [2022-03-17 23:34:20,739 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 262 transitions. Word has length 62 [2022-03-17 23:34:20,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:34:20,739 INFO L478 AbstractCegarLoop]: Abstraction has 171 states and 262 transitions. [2022-03-17 23:34:20,740 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:20,740 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 262 transitions. [2022-03-17 23:34:20,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-03-17 23:34:20,741 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:34:20,741 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] [2022-03-17 23:34:20,741 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-17 23:34:20,741 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:34:20,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:34:20,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1386977004, now seen corresponding path program 1 times [2022-03-17 23:34:20,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:34:20,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389186325] [2022-03-17 23:34:20,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:34:20,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:34:20,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:20,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:34:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:20,890 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:34:20,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:34:20,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389186325] [2022-03-17 23:34:20,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389186325] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:34:20,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:34:20,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:34:20,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984638625] [2022-03-17 23:34:20,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:34:20,892 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:34:20,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:34:20,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:34:20,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:34:20,892 INFO L87 Difference]: Start difference. First operand 171 states and 262 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:23,583 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:25,610 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 [] [2022-03-17 23:34:25,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:34:25,965 INFO L93 Difference]: Finished difference Result 332 states and 508 transitions. [2022-03-17 23:34:25,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:34:25,966 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 62 [2022-03-17 23:34:25,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:34:25,967 INFO L225 Difference]: With dead ends: 332 [2022-03-17 23:34:25,967 INFO L226 Difference]: Without dead ends: 187 [2022-03-17 23:34:25,967 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 [2022-03-17 23:34:25,968 INFO L912 BasicCegarLoop]: 192 mSDtfsCounter, 26 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:34:25,968 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 497 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 365 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-17 23:34:25,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-03-17 23:34:25,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 171. [2022-03-17 23:34:25,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 166 states have (on average 1.5481927710843373) internal successors, (257), 166 states have internal predecessors, (257), 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) [2022-03-17 23:34:25,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 261 transitions. [2022-03-17 23:34:25,974 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 261 transitions. Word has length 62 [2022-03-17 23:34:25,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:34:25,974 INFO L478 AbstractCegarLoop]: Abstraction has 171 states and 261 transitions. [2022-03-17 23:34:25,974 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:25,975 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 261 transitions. [2022-03-17 23:34:25,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-03-17 23:34:25,975 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:34:25,975 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] [2022-03-17 23:34:25,975 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-17 23:34:25,976 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:34:25,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:34:25,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1440970068, now seen corresponding path program 1 times [2022-03-17 23:34:25,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:34:25,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576149249] [2022-03-17 23:34:25,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:34:25,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:34:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:26,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:34:26,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:26,094 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:34:26,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:34:26,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576149249] [2022-03-17 23:34:26,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576149249] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:34:26,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:34:26,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:34:26,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112452895] [2022-03-17 23:34:26,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:34:26,096 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:34:26,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:34:26,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:34:26,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:34:26,097 INFO L87 Difference]: Start difference. First operand 171 states and 261 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:27,862 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:29,069 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:31,453 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:31,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:34:31,905 INFO L93 Difference]: Finished difference Result 437 states and 677 transitions. [2022-03-17 23:34:31,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:34:31,906 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 62 [2022-03-17 23:34:31,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:34:31,907 INFO L225 Difference]: With dead ends: 437 [2022-03-17 23:34:31,907 INFO L226 Difference]: Without dead ends: 292 [2022-03-17 23:34:31,908 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 [2022-03-17 23:34:31,908 INFO L912 BasicCegarLoop]: 121 mSDtfsCounter, 150 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:34:31,908 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 354 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-03-17 23:34:31,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2022-03-17 23:34:31,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 188. [2022-03-17 23:34:31,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 183 states have (on average 1.5519125683060109) internal successors, (284), 183 states have internal predecessors, (284), 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) [2022-03-17 23:34:31,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 288 transitions. [2022-03-17 23:34:31,915 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 288 transitions. Word has length 62 [2022-03-17 23:34:31,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:34:31,915 INFO L478 AbstractCegarLoop]: Abstraction has 188 states and 288 transitions. [2022-03-17 23:34:31,915 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:31,915 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 288 transitions. [2022-03-17 23:34:31,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-03-17 23:34:31,916 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:34:31,916 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] [2022-03-17 23:34:31,916 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-17 23:34:31,916 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:34:31,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:34:31,916 INFO L85 PathProgramCache]: Analyzing trace with hash -929104780, now seen corresponding path program 1 times [2022-03-17 23:34:31,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:34:31,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794047502] [2022-03-17 23:34:31,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:34:31,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:34:31,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:31,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:34:31,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:31,996 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:34:31,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:34:31,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794047502] [2022-03-17 23:34:31,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794047502] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:34:31,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:34:31,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:34:31,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126988762] [2022-03-17 23:34:31,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:34:31,998 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:34:31,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:34:31,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:34:31,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:34:31,999 INFO L87 Difference]: Start difference. First operand 188 states and 288 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:34,471 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:36,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:37,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:34:37,221 INFO L93 Difference]: Finished difference Result 363 states and 559 transitions. [2022-03-17 23:34:37,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:34:37,222 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 62 [2022-03-17 23:34:37,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:34:37,223 INFO L225 Difference]: With dead ends: 363 [2022-03-17 23:34:37,223 INFO L226 Difference]: Without dead ends: 201 [2022-03-17 23:34:37,223 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 [2022-03-17 23:34:37,224 INFO L912 BasicCegarLoop]: 195 mSDtfsCounter, 18 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:34:37,224 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 503 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 359 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-17 23:34:37,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-03-17 23:34:37,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 188. [2022-03-17 23:34:37,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 183 states have (on average 1.546448087431694) internal successors, (283), 183 states have internal predecessors, (283), 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) [2022-03-17 23:34:37,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 287 transitions. [2022-03-17 23:34:37,229 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 287 transitions. Word has length 62 [2022-03-17 23:34:37,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:34:37,229 INFO L478 AbstractCegarLoop]: Abstraction has 188 states and 287 transitions. [2022-03-17 23:34:37,229 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:37,229 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 287 transitions. [2022-03-17 23:34:37,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-17 23:34:37,230 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:34:37,230 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] [2022-03-17 23:34:37,230 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-17 23:34:37,230 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:34:37,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:34:37,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1567915308, now seen corresponding path program 1 times [2022-03-17 23:34:37,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:34:37,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399751436] [2022-03-17 23:34:37,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:34:37,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:34:37,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:37,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:34:37,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:37,338 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:34:37,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:34:37,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399751436] [2022-03-17 23:34:37,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399751436] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:34:37,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:34:37,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:34:37,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100923522] [2022-03-17 23:34:37,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:34:37,339 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:34:37,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:34:37,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:34:37,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:34:37,341 INFO L87 Difference]: Start difference. First operand 188 states and 287 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) [2022-03-17 23:34:38,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:40,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:41,810 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:43,834 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:44,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:34:44,185 INFO L93 Difference]: Finished difference Result 363 states and 558 transitions. [2022-03-17 23:34:44,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:34:44,185 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 [2022-03-17 23:34:44,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:34:44,186 INFO L225 Difference]: With dead ends: 363 [2022-03-17 23:34:44,186 INFO L226 Difference]: Without dead ends: 201 [2022-03-17 23:34:44,186 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 [2022-03-17 23:34:44,187 INFO L912 BasicCegarLoop]: 195 mSDtfsCounter, 22 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:34:44,187 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 503 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 359 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-03-17 23:34:44,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-03-17 23:34:44,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 188. [2022-03-17 23:34:44,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 183 states have (on average 1.540983606557377) internal successors, (282), 183 states have internal predecessors, (282), 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) [2022-03-17 23:34:44,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 286 transitions. [2022-03-17 23:34:44,191 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 286 transitions. Word has length 63 [2022-03-17 23:34:44,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:34:44,192 INFO L478 AbstractCegarLoop]: Abstraction has 188 states and 286 transitions. [2022-03-17 23:34:44,192 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) [2022-03-17 23:34:44,192 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 286 transitions. [2022-03-17 23:34:44,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-17 23:34:44,192 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:34:44,192 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] [2022-03-17 23:34:44,192 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-17 23:34:44,193 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:34:44,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:34:44,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1095062760, now seen corresponding path program 1 times [2022-03-17 23:34:44,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:34:44,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617824612] [2022-03-17 23:34:44,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:34:44,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:34:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:44,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:34:44,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:44,272 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:34:44,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:34:44,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617824612] [2022-03-17 23:34:44,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617824612] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:34:44,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:34:44,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:34:44,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955128579] [2022-03-17 23:34:44,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:34:44,273 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:34:44,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:34:44,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:34:44,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:34:44,273 INFO L87 Difference]: Start difference. First operand 188 states and 286 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) [2022-03-17 23:34:45,797 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:47,819 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:49,330 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:50,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:34:50,615 INFO L93 Difference]: Finished difference Result 454 states and 701 transitions. [2022-03-17 23:34:50,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:34:50,616 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 [2022-03-17 23:34:50,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:34:50,617 INFO L225 Difference]: With dead ends: 454 [2022-03-17 23:34:50,617 INFO L226 Difference]: Without dead ends: 292 [2022-03-17 23:34:50,618 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:34:50,618 INFO L912 BasicCegarLoop]: 121 mSDtfsCounter, 152 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:34:50,618 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 354 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 480 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-03-17 23:34:50,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2022-03-17 23:34:50,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 188. [2022-03-17 23:34:50,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 183 states have (on average 1.5245901639344261) internal successors, (279), 183 states have internal predecessors, (279), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:50,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 283 transitions. [2022-03-17 23:34:50,628 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 283 transitions. Word has length 64 [2022-03-17 23:34:50,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:34:50,629 INFO L478 AbstractCegarLoop]: Abstraction has 188 states and 283 transitions. [2022-03-17 23:34:50,629 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) [2022-03-17 23:34:50,629 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 283 transitions. [2022-03-17 23:34:50,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-17 23:34:50,630 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:34:50,630 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] [2022-03-17 23:34:50,631 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-17 23:34:50,631 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:34:50,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:34:50,631 INFO L85 PathProgramCache]: Analyzing trace with hash -128789801, now seen corresponding path program 1 times [2022-03-17 23:34:50,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:34:50,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849529907] [2022-03-17 23:34:50,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:34:50,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:34:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:50,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:34:50,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:50,720 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:34:50,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:34:50,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849529907] [2022-03-17 23:34:50,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849529907] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:34:50,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:34:50,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:34:50,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914483136] [2022-03-17 23:34:50,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:34:50,722 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:34:50,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:34:50,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:34:50,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:34:50,722 INFO L87 Difference]: Start difference. First operand 188 states and 283 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) [2022-03-17 23:34:53,330 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:54,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:56,737 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:34:57,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:34:57,055 INFO L93 Difference]: Finished difference Result 353 states and 539 transitions. [2022-03-17 23:34:57,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:34:57,055 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 [2022-03-17 23:34:57,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:34:57,056 INFO L225 Difference]: With dead ends: 353 [2022-03-17 23:34:57,056 INFO L226 Difference]: Without dead ends: 191 [2022-03-17 23:34:57,056 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 [2022-03-17 23:34:57,057 INFO L912 BasicCegarLoop]: 202 mSDtfsCounter, 11 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-17 23:34:57,057 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 517 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 345 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-03-17 23:34:57,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-03-17 23:34:57,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 188. [2022-03-17 23:34:57,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 183 states have (on average 1.5191256830601092) internal successors, (278), 183 states have internal predecessors, (278), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:34:57,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 282 transitions. [2022-03-17 23:34:57,061 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 282 transitions. Word has length 65 [2022-03-17 23:34:57,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:34:57,061 INFO L478 AbstractCegarLoop]: Abstraction has 188 states and 282 transitions. [2022-03-17 23:34:57,061 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) [2022-03-17 23:34:57,061 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 282 transitions. [2022-03-17 23:34:57,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-17 23:34:57,062 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:34:57,062 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] [2022-03-17 23:34:57,062 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-17 23:34:57,062 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:34:57,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:34:57,063 INFO L85 PathProgramCache]: Analyzing trace with hash 554651974, now seen corresponding path program 1 times [2022-03-17 23:34:57,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:34:57,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028118629] [2022-03-17 23:34:57,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:34:57,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:34:57,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:57,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:34:57,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:34:57,180 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:34:57,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:34:57,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028118629] [2022-03-17 23:34:57,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028118629] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:34:57,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:34:57,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:34:57,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812159767] [2022-03-17 23:34:57,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:34:57,181 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:34:57,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:34:57,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:34:57,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:34:57,181 INFO L87 Difference]: Start difference. First operand 188 states and 282 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) [2022-03-17 23:34:58,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:00,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:02,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:03,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:35:03,001 INFO L93 Difference]: Finished difference Result 472 states and 722 transitions. [2022-03-17 23:35:03,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:35:03,001 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 [2022-03-17 23:35:03,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:35:03,002 INFO L225 Difference]: With dead ends: 472 [2022-03-17 23:35:03,002 INFO L226 Difference]: Without dead ends: 310 [2022-03-17 23:35:03,003 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 [2022-03-17 23:35:03,003 INFO L912 BasicCegarLoop]: 122 mSDtfsCounter, 127 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:35:03,003 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 356 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-03-17 23:35:03,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-03-17 23:35:03,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 228. [2022-03-17 23:35:03,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 223 states have (on average 1.5605381165919283) internal successors, (348), 223 states have internal predecessors, (348), 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) [2022-03-17 23:35:03,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 352 transitions. [2022-03-17 23:35:03,008 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 352 transitions. Word has length 65 [2022-03-17 23:35:03,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:35:03,009 INFO L478 AbstractCegarLoop]: Abstraction has 228 states and 352 transitions. [2022-03-17 23:35:03,009 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) [2022-03-17 23:35:03,009 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 352 transitions. [2022-03-17 23:35:03,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-17 23:35:03,009 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:35:03,010 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] [2022-03-17 23:35:03,010 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-17 23:35:03,010 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:35:03,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:35:03,010 INFO L85 PathProgramCache]: Analyzing trace with hash 15292259, now seen corresponding path program 1 times [2022-03-17 23:35:03,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:35:03,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819507358] [2022-03-17 23:35:03,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:35:03,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:35:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:03,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:35:03,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:03,109 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 23:35:03,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:35:03,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819507358] [2022-03-17 23:35:03,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819507358] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:35:03,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:35:03,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:35:03,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861895272] [2022-03-17 23:35:03,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:35:03,110 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:35:03,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:35:03,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:35:03,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:35:03,111 INFO L87 Difference]: Start difference. First operand 228 states and 352 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) [2022-03-17 23:35:06,915 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 [] [2022-03-17 23:35:07,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:35:07,616 INFO L93 Difference]: Finished difference Result 534 states and 835 transitions. [2022-03-17 23:35:07,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:35:07,617 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 [2022-03-17 23:35:07,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:35:07,618 INFO L225 Difference]: With dead ends: 534 [2022-03-17 23:35:07,618 INFO L226 Difference]: Without dead ends: 332 [2022-03-17 23:35:07,619 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 [2022-03-17 23:35:07,619 INFO L912 BasicCegarLoop]: 129 mSDtfsCounter, 126 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:35:07,619 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 370 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-03-17 23:35:07,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-03-17 23:35:07,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 251. [2022-03-17 23:35:07,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 246 states have (on average 1.5975609756097562) internal successors, (393), 246 states have internal predecessors, (393), 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) [2022-03-17 23:35:07,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 397 transitions. [2022-03-17 23:35:07,624 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 397 transitions. Word has length 66 [2022-03-17 23:35:07,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:35:07,625 INFO L478 AbstractCegarLoop]: Abstraction has 251 states and 397 transitions. [2022-03-17 23:35:07,625 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) [2022-03-17 23:35:07,625 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 397 transitions. [2022-03-17 23:35:07,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-03-17 23:35:07,626 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:35:07,626 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] [2022-03-17 23:35:07,626 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-17 23:35:07,626 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:35:07,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:35:07,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1382857682, now seen corresponding path program 1 times [2022-03-17 23:35:07,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:35:07,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987941464] [2022-03-17 23:35:07,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:35:07,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:35:07,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:07,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:35:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:07,734 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-17 23:35:07,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:35:07,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987941464] [2022-03-17 23:35:07,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987941464] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:35:07,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:35:07,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:35:07,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055218844] [2022-03-17 23:35:07,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:35:07,735 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:35:07,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:35:07,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:35:07,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:35:07,736 INFO L87 Difference]: Start difference. First operand 251 states and 397 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) [2022-03-17 23:35:09,429 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:11,365 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:13,393 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 [] [2022-03-17 23:35:14,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:35:14,173 INFO L93 Difference]: Finished difference Result 517 states and 825 transitions. [2022-03-17 23:35:14,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:35:14,174 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 94 [2022-03-17 23:35:14,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:35:14,175 INFO L225 Difference]: With dead ends: 517 [2022-03-17 23:35:14,175 INFO L226 Difference]: Without dead ends: 292 [2022-03-17 23:35:14,176 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 [2022-03-17 23:35:14,176 INFO L912 BasicCegarLoop]: 200 mSDtfsCounter, 31 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:35:14,176 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 519 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 397 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-03-17 23:35:14,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2022-03-17 23:35:14,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 273. [2022-03-17 23:35:14,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 268 states have (on average 1.5970149253731343) internal successors, (428), 268 states have internal predecessors, (428), 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) [2022-03-17 23:35:14,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 432 transitions. [2022-03-17 23:35:14,182 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 432 transitions. Word has length 94 [2022-03-17 23:35:14,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:35:14,182 INFO L478 AbstractCegarLoop]: Abstraction has 273 states and 432 transitions. [2022-03-17 23:35:14,182 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) [2022-03-17 23:35:14,182 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 432 transitions. [2022-03-17 23:35:14,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-03-17 23:35:14,183 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:35:14,183 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] [2022-03-17 23:35:14,183 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-17 23:35:14,183 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:35:14,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:35:14,183 INFO L85 PathProgramCache]: Analyzing trace with hash 177090676, now seen corresponding path program 1 times [2022-03-17 23:35:14,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:35:14,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956963409] [2022-03-17 23:35:14,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:35:14,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:35:14,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:14,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:35:14,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:14,269 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-17 23:35:14,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:35:14,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956963409] [2022-03-17 23:35:14,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956963409] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:35:14,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:35:14,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:35:14,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878399887] [2022-03-17 23:35:14,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:35:14,270 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:35:14,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:35:14,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:35:14,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:35:14,270 INFO L87 Difference]: Start difference. First operand 273 states and 432 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:16,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:18,368 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 [] [2022-03-17 23:35:18,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:35:18,739 INFO L93 Difference]: Finished difference Result 533 states and 850 transitions. [2022-03-17 23:35:18,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:35:18,739 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 108 [2022-03-17 23:35:18,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:35:18,740 INFO L225 Difference]: With dead ends: 533 [2022-03-17 23:35:18,740 INFO L226 Difference]: Without dead ends: 286 [2022-03-17 23:35:18,741 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 [2022-03-17 23:35:18,742 INFO L912 BasicCegarLoop]: 233 mSDtfsCounter, 21 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:35:18,743 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 584 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 401 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-03-17 23:35:18,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-03-17 23:35:18,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 273. [2022-03-17 23:35:18,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 268 states have (on average 1.5932835820895523) internal successors, (427), 268 states have internal predecessors, (427), 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) [2022-03-17 23:35:18,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 431 transitions. [2022-03-17 23:35:18,748 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 431 transitions. Word has length 108 [2022-03-17 23:35:18,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:35:18,748 INFO L478 AbstractCegarLoop]: Abstraction has 273 states and 431 transitions. [2022-03-17 23:35:18,748 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:18,749 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 431 transitions. [2022-03-17 23:35:18,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-03-17 23:35:18,749 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:35:18,749 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] [2022-03-17 23:35:18,749 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-17 23:35:18,749 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:35:18,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:35:18,750 INFO L85 PathProgramCache]: Analyzing trace with hash 552598772, now seen corresponding path program 1 times [2022-03-17 23:35:18,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:35:18,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855590861] [2022-03-17 23:35:18,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:35:18,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:35:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:18,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:35:18,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:18,838 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 23:35:18,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:35:18,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855590861] [2022-03-17 23:35:18,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855590861] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:35:18,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:35:18,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:35:18,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113995168] [2022-03-17 23:35:18,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:35:18,839 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:35:18,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:35:18,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:35:18,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:35:18,840 INFO L87 Difference]: Start difference. First operand 273 states and 431 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:19,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:21,649 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:23,682 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:24,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:35:24,633 INFO L93 Difference]: Finished difference Result 538 states and 856 transitions. [2022-03-17 23:35:24,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:35:24,633 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 108 [2022-03-17 23:35:24,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:35:24,634 INFO L225 Difference]: With dead ends: 538 [2022-03-17 23:35:24,634 INFO L226 Difference]: Without dead ends: 291 [2022-03-17 23:35:24,635 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 [2022-03-17 23:35:24,636 INFO L912 BasicCegarLoop]: 202 mSDtfsCounter, 34 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:35:24,637 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 521 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 394 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-03-17 23:35:24,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2022-03-17 23:35:24,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 273. [2022-03-17 23:35:24,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 268 states have (on average 1.5895522388059702) internal successors, (426), 268 states have internal predecessors, (426), 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) [2022-03-17 23:35:24,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 430 transitions. [2022-03-17 23:35:24,643 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 430 transitions. Word has length 108 [2022-03-17 23:35:24,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:35:24,643 INFO L478 AbstractCegarLoop]: Abstraction has 273 states and 430 transitions. [2022-03-17 23:35:24,643 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:24,643 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 430 transitions. [2022-03-17 23:35:24,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-17 23:35:24,644 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:35:24,644 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] [2022-03-17 23:35:24,644 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-17 23:35:24,644 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:35:24,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:35:24,645 INFO L85 PathProgramCache]: Analyzing trace with hash -521407407, now seen corresponding path program 1 times [2022-03-17 23:35:24,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:35:24,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106918442] [2022-03-17 23:35:24,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:35:24,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:35:24,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:24,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:35:24,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:24,746 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-03-17 23:35:24,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:35:24,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106918442] [2022-03-17 23:35:24,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106918442] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:35:24,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:35:24,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 23:35:24,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818958831] [2022-03-17 23:35:24,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:35:24,747 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 23:35:24,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:35:24,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 23:35:24,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 23:35:24,747 INFO L87 Difference]: Start difference. First operand 273 states and 430 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:28,758 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:30,783 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:31,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:35:31,131 INFO L93 Difference]: Finished difference Result 529 states and 842 transitions. [2022-03-17 23:35:31,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 23:35:31,131 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-03-17 23:35:31,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:35:31,132 INFO L225 Difference]: With dead ends: 529 [2022-03-17 23:35:31,132 INFO L226 Difference]: Without dead ends: 282 [2022-03-17 23:35:31,133 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 [2022-03-17 23:35:31,133 INFO L912 BasicCegarLoop]: 207 mSDtfsCounter, 3 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:35:31,133 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 649 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 438 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-03-17 23:35:31,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-03-17 23:35:31,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2022-03-17 23:35:31,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 277 states have (on average 1.5776173285198556) internal successors, (437), 277 states have internal predecessors, (437), 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) [2022-03-17 23:35:31,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 441 transitions. [2022-03-17 23:35:31,138 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 441 transitions. Word has length 109 [2022-03-17 23:35:31,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:35:31,138 INFO L478 AbstractCegarLoop]: Abstraction has 282 states and 441 transitions. [2022-03-17 23:35:31,138 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:31,138 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 441 transitions. [2022-03-17 23:35:31,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-17 23:35:31,139 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:35:31,139 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] [2022-03-17 23:35:31,139 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-17 23:35:31,139 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:35:31,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:35:31,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1454460017, now seen corresponding path program 1 times [2022-03-17 23:35:31,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:35:31,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972884461] [2022-03-17 23:35:31,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:35:31,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:35:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:31,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:35:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:31,232 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 23:35:31,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:35:31,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972884461] [2022-03-17 23:35:31,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972884461] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:35:31,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:35:31,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:35:31,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719603939] [2022-03-17 23:35:31,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:35:31,233 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:35:31,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:35:31,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:35:31,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:35:31,234 INFO L87 Difference]: Start difference. First operand 282 states and 441 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:33,101 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:34,998 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:36,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:35:36,302 INFO L93 Difference]: Finished difference Result 565 states and 887 transitions. [2022-03-17 23:35:36,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:35:36,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-03-17 23:35:36,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:35:36,304 INFO L225 Difference]: With dead ends: 565 [2022-03-17 23:35:36,304 INFO L226 Difference]: Without dead ends: 309 [2022-03-17 23:35:36,304 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 [2022-03-17 23:35:36,305 INFO L912 BasicCegarLoop]: 202 mSDtfsCounter, 39 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:35:36,305 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 521 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-03-17 23:35:36,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-03-17 23:35:36,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 282. [2022-03-17 23:35:36,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 277 states have (on average 1.5740072202166064) internal successors, (436), 277 states have internal predecessors, (436), 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) [2022-03-17 23:35:36,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 440 transitions. [2022-03-17 23:35:36,310 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 440 transitions. Word has length 109 [2022-03-17 23:35:36,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:35:36,310 INFO L478 AbstractCegarLoop]: Abstraction has 282 states and 440 transitions. [2022-03-17 23:35:36,311 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:36,311 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 440 transitions. [2022-03-17 23:35:36,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-17 23:35:36,311 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:35:36,311 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] [2022-03-17 23:35:36,312 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-17 23:35:36,312 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:35:36,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:35:36,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1146876647, now seen corresponding path program 1 times [2022-03-17 23:35:36,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:35:36,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814492676] [2022-03-17 23:35:36,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:35:36,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:35:36,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:36,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:35:36,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:36,421 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 23:35:36,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:35:36,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814492676] [2022-03-17 23:35:36,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814492676] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:35:36,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:35:36,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:35:36,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597004807] [2022-03-17 23:35:36,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:35:36,422 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:35:36,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:35:36,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:35:36,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:35:36,423 INFO L87 Difference]: Start difference. First operand 282 states and 440 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) [2022-03-17 23:35:37,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:39,634 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:41,665 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 [] [2022-03-17 23:35:43,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:35:43,041 INFO L93 Difference]: Finished difference Result 628 states and 976 transitions. [2022-03-17 23:35:43,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:35:43,042 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 [2022-03-17 23:35:43,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:35:43,043 INFO L225 Difference]: With dead ends: 628 [2022-03-17 23:35:43,043 INFO L226 Difference]: Without dead ends: 372 [2022-03-17 23:35:43,043 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 [2022-03-17 23:35:43,044 INFO L912 BasicCegarLoop]: 129 mSDtfsCounter, 152 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:35:43,044 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 370 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 487 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-03-17 23:35:43,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2022-03-17 23:35:43,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 282. [2022-03-17 23:35:43,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 277 states have (on average 1.55956678700361) internal successors, (432), 277 states have internal predecessors, (432), 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) [2022-03-17 23:35:43,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 436 transitions. [2022-03-17 23:35:43,049 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 436 transitions. Word has length 110 [2022-03-17 23:35:43,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:35:43,049 INFO L478 AbstractCegarLoop]: Abstraction has 282 states and 436 transitions. [2022-03-17 23:35:43,049 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) [2022-03-17 23:35:43,049 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 436 transitions. [2022-03-17 23:35:43,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-03-17 23:35:43,050 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:35:43,050 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] [2022-03-17 23:35:43,050 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-17 23:35:43,050 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:35:43,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:35:43,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1517189340, now seen corresponding path program 1 times [2022-03-17 23:35:43,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:35:43,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272961315] [2022-03-17 23:35:43,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:35:43,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:35:43,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:43,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:35:43,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:43,155 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 23:35:43,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:35:43,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272961315] [2022-03-17 23:35:43,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272961315] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:35:43,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:35:43,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:35:43,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892570259] [2022-03-17 23:35:43,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:35:43,156 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:35:43,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:35:43,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:35:43,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:35:43,157 INFO L87 Difference]: Start difference. First operand 282 states and 436 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) [2022-03-17 23:35:45,158 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 [] [2022-03-17 23:35:46,475 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:48,498 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:48,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:35:48,838 INFO L93 Difference]: Finished difference Result 555 states and 864 transitions. [2022-03-17 23:35:48,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:35:48,839 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 [2022-03-17 23:35:48,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:35:48,840 INFO L225 Difference]: With dead ends: 555 [2022-03-17 23:35:48,840 INFO L226 Difference]: Without dead ends: 299 [2022-03-17 23:35:48,840 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 [2022-03-17 23:35:48,841 INFO L912 BasicCegarLoop]: 203 mSDtfsCounter, 33 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:35:48,841 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 523 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 392 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-03-17 23:35:48,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2022-03-17 23:35:48,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 282. [2022-03-17 23:35:48,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 277 states have (on average 1.555956678700361) internal successors, (431), 277 states have internal predecessors, (431), 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) [2022-03-17 23:35:48,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 435 transitions. [2022-03-17 23:35:48,846 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 435 transitions. Word has length 112 [2022-03-17 23:35:48,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:35:48,846 INFO L478 AbstractCegarLoop]: Abstraction has 282 states and 435 transitions. [2022-03-17 23:35:48,846 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) [2022-03-17 23:35:48,846 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 435 transitions. [2022-03-17 23:35:48,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-03-17 23:35:48,847 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:35:48,847 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] [2022-03-17 23:35:48,847 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-17 23:35:48,847 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:35:48,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:35:48,847 INFO L85 PathProgramCache]: Analyzing trace with hash -527302323, now seen corresponding path program 1 times [2022-03-17 23:35:48,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:35:48,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514855368] [2022-03-17 23:35:48,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:35:48,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:35:48,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:48,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:35:48,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:48,930 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:35:48,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:35:48,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514855368] [2022-03-17 23:35:48,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514855368] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:35:48,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:35:48,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:35:48,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842385699] [2022-03-17 23:35:48,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:35:48,931 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:35:48,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:35:48,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:35:48,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:35:48,931 INFO L87 Difference]: Start difference. First operand 282 states and 435 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:50,504 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:52,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:35:53,995 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 [] [2022-03-17 23:35:55,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:35:55,043 INFO L93 Difference]: Finished difference Result 645 states and 1001 transitions. [2022-03-17 23:35:55,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:35:55,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 116 [2022-03-17 23:35:55,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:35:55,045 INFO L225 Difference]: With dead ends: 645 [2022-03-17 23:35:55,045 INFO L226 Difference]: Without dead ends: 389 [2022-03-17 23:35:55,045 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 [2022-03-17 23:35:55,046 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 94 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:35:55,046 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 517 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 531 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-03-17 23:35:55,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2022-03-17 23:35:55,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 316. [2022-03-17 23:35:55,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 311 states have (on average 1.5659163987138263) internal successors, (487), 311 states have internal predecessors, (487), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:55,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 491 transitions. [2022-03-17 23:35:55,052 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 491 transitions. Word has length 116 [2022-03-17 23:35:55,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:35:55,052 INFO L478 AbstractCegarLoop]: Abstraction has 316 states and 491 transitions. [2022-03-17 23:35:55,052 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:55,052 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 491 transitions. [2022-03-17 23:35:55,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-03-17 23:35:55,053 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:35:55,053 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] [2022-03-17 23:35:55,053 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-17 23:35:55,053 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:35:55,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:35:55,054 INFO L85 PathProgramCache]: Analyzing trace with hash 2097151404, now seen corresponding path program 1 times [2022-03-17 23:35:55,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:35:55,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949328161] [2022-03-17 23:35:55,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:35:55,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:35:55,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:55,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:35:55,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:35:55,165 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-17 23:35:55,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:35:55,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949328161] [2022-03-17 23:35:55,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949328161] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:35:55,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:35:55,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:35:55,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827843931] [2022-03-17 23:35:55,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:35:55,165 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:35:55,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:35:55,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:35:55,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:35:55,166 INFO L87 Difference]: Start difference. First operand 316 states and 491 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:35:57,698 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 [] [2022-03-17 23:35:59,337 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:00,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:01,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:36:01,288 INFO L93 Difference]: Finished difference Result 663 states and 1034 transitions. [2022-03-17 23:36:01,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:36:01,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 116 [2022-03-17 23:36:01,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:36:01,290 INFO L225 Difference]: With dead ends: 663 [2022-03-17 23:36:01,290 INFO L226 Difference]: Without dead ends: 373 [2022-03-17 23:36:01,291 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 [2022-03-17 23:36:01,291 INFO L912 BasicCegarLoop]: 251 mSDtfsCounter, 38 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:36:01,291 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 619 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-03-17 23:36:01,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-03-17 23:36:01,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 340. [2022-03-17 23:36:01,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 335 states have (on average 1.5671641791044777) internal successors, (525), 335 states have internal predecessors, (525), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:01,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 529 transitions. [2022-03-17 23:36:01,297 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 529 transitions. Word has length 116 [2022-03-17 23:36:01,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:36:01,297 INFO L478 AbstractCegarLoop]: Abstraction has 340 states and 529 transitions. [2022-03-17 23:36:01,298 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:01,298 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 529 transitions. [2022-03-17 23:36:01,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-03-17 23:36:01,299 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:36:01,299 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] [2022-03-17 23:36:01,299 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-17 23:36:01,299 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:36:01,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:36:01,302 INFO L85 PathProgramCache]: Analyzing trace with hash 775708070, now seen corresponding path program 1 times [2022-03-17 23:36:01,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:36:01,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550952459] [2022-03-17 23:36:01,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:36:01,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:36:01,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:01,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:36:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:01,402 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-17 23:36:01,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:36:01,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550952459] [2022-03-17 23:36:01,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550952459] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:36:01,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:36:01,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:36:01,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688927744] [2022-03-17 23:36:01,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:36:01,403 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:36:01,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:36:01,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:36:01,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:36:01,403 INFO L87 Difference]: Start difference. First operand 340 states and 529 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) [2022-03-17 23:36:02,882 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:04,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:06,641 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 [] [2022-03-17 23:36:07,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:36:07,065 INFO L93 Difference]: Finished difference Result 734 states and 1142 transitions. [2022-03-17 23:36:07,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:36:07,066 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 121 [2022-03-17 23:36:07,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:36:07,067 INFO L225 Difference]: With dead ends: 734 [2022-03-17 23:36:07,067 INFO L226 Difference]: Without dead ends: 420 [2022-03-17 23:36:07,068 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 [2022-03-17 23:36:07,068 INFO L912 BasicCegarLoop]: 122 mSDtfsCounter, 153 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-17 23:36:07,068 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 356 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-17 23:36:07,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-03-17 23:36:07,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 340. [2022-03-17 23:36:07,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 335 states have (on average 1.5492537313432835) internal successors, (519), 335 states have internal predecessors, (519), 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) [2022-03-17 23:36:07,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 523 transitions. [2022-03-17 23:36:07,075 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 523 transitions. Word has length 121 [2022-03-17 23:36:07,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:36:07,076 INFO L478 AbstractCegarLoop]: Abstraction has 340 states and 523 transitions. [2022-03-17 23:36:07,076 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) [2022-03-17 23:36:07,076 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 523 transitions. [2022-03-17 23:36:07,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-17 23:36:07,077 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:36:07,077 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] [2022-03-17 23:36:07,077 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-17 23:36:07,077 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:36:07,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:36:07,077 INFO L85 PathProgramCache]: Analyzing trace with hash 763597463, now seen corresponding path program 1 times [2022-03-17 23:36:07,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:36:07,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85666794] [2022-03-17 23:36:07,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:36:07,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:36:07,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:07,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:36:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:07,174 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:36:07,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:36:07,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85666794] [2022-03-17 23:36:07,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85666794] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:36:07,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:36:07,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:36:07,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122696220] [2022-03-17 23:36:07,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:36:07,175 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:36:07,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:36:07,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:36:07,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:36:07,175 INFO L87 Difference]: Start difference. First operand 340 states and 523 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) [2022-03-17 23:36:09,182 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 [] [2022-03-17 23:36:09,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:36:09,597 INFO L93 Difference]: Finished difference Result 774 states and 1198 transitions. [2022-03-17 23:36:09,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:36:09,598 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-17 23:36:09,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:36:09,600 INFO L225 Difference]: With dead ends: 774 [2022-03-17 23:36:09,600 INFO L226 Difference]: Without dead ends: 460 [2022-03-17 23:36:09,600 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 [2022-03-17 23:36:09,601 INFO L912 BasicCegarLoop]: 122 mSDtfsCounter, 126 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:36:09,601 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 356 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:36:09,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-03-17 23:36:09,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 377. [2022-03-17 23:36:09,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 372 states have (on average 1.5618279569892473) internal successors, (581), 372 states have internal predecessors, (581), 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) [2022-03-17 23:36:09,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 585 transitions. [2022-03-17 23:36:09,607 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 585 transitions. Word has length 122 [2022-03-17 23:36:09,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:36:09,607 INFO L478 AbstractCegarLoop]: Abstraction has 377 states and 585 transitions. [2022-03-17 23:36:09,607 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) [2022-03-17 23:36:09,607 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 585 transitions. [2022-03-17 23:36:09,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-17 23:36:09,608 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:36:09,608 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] [2022-03-17 23:36:09,608 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-17 23:36:09,608 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:36:09,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:36:09,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1514824195, now seen corresponding path program 1 times [2022-03-17 23:36:09,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:36:09,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247952486] [2022-03-17 23:36:09,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:36:09,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:36:09,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:09,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:36:09,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:09,691 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:36:09,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:36:09,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247952486] [2022-03-17 23:36:09,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247952486] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:36:09,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:36:09,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:36:09,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034645524] [2022-03-17 23:36:09,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:36:09,692 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:36:09,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:36:09,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:36:09,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:36:09,692 INFO L87 Difference]: Start difference. First operand 377 states and 585 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) [2022-03-17 23:36:12,088 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:14,115 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:16,140 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 [] [2022-03-17 23:36:16,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:36:16,589 INFO L93 Difference]: Finished difference Result 788 states and 1227 transitions. [2022-03-17 23:36:16,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:36:16,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-17 23:36:16,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:36:16,590 INFO L225 Difference]: With dead ends: 788 [2022-03-17 23:36:16,590 INFO L226 Difference]: Without dead ends: 437 [2022-03-17 23:36:16,591 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 [2022-03-17 23:36:16,591 INFO L912 BasicCegarLoop]: 184 mSDtfsCounter, 82 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 11 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:36:16,591 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 487 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 506 Invalid, 3 Unknown, 0 Unchecked, 6.9s Time] [2022-03-17 23:36:16,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2022-03-17 23:36:16,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 383. [2022-03-17 23:36:16,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 378 states have (on average 1.5634920634920635) internal successors, (591), 378 states have internal predecessors, (591), 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) [2022-03-17 23:36:16,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 595 transitions. [2022-03-17 23:36:16,597 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 595 transitions. Word has length 123 [2022-03-17 23:36:16,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:36:16,597 INFO L478 AbstractCegarLoop]: Abstraction has 383 states and 595 transitions. [2022-03-17 23:36:16,597 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) [2022-03-17 23:36:16,598 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 595 transitions. [2022-03-17 23:36:16,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-03-17 23:36:16,598 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:36:16,598 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] [2022-03-17 23:36:16,599 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-17 23:36:16,599 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:36:16,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:36:16,599 INFO L85 PathProgramCache]: Analyzing trace with hash 510777299, now seen corresponding path program 1 times [2022-03-17 23:36:16,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:36:16,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569703964] [2022-03-17 23:36:16,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:36:16,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:36:16,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:16,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:36:16,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:16,695 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:36:16,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:36:16,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569703964] [2022-03-17 23:36:16,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569703964] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:36:16,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:36:16,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:36:16,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519450146] [2022-03-17 23:36:16,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:36:16,695 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:36:16,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:36:16,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:36:16,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:36:16,696 INFO L87 Difference]: Start difference. First operand 383 states and 595 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:19,405 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 [] [2022-03-17 23:36:21,312 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:23,341 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:23,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:36:23,744 INFO L93 Difference]: Finished difference Result 819 states and 1273 transitions. [2022-03-17 23:36:23,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:36:23,744 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 130 [2022-03-17 23:36:23,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:36:23,746 INFO L225 Difference]: With dead ends: 819 [2022-03-17 23:36:23,746 INFO L226 Difference]: Without dead ends: 462 [2022-03-17 23:36:23,746 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 [2022-03-17 23:36:23,747 INFO L912 BasicCegarLoop]: 123 mSDtfsCounter, 145 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:36:23,747 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 358 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 475 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-03-17 23:36:23,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2022-03-17 23:36:23,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 383. [2022-03-17 23:36:23,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 378 states have (on average 1.5502645502645502) internal successors, (586), 378 states have internal predecessors, (586), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:23,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 590 transitions. [2022-03-17 23:36:23,754 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 590 transitions. Word has length 130 [2022-03-17 23:36:23,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:36:23,754 INFO L478 AbstractCegarLoop]: Abstraction has 383 states and 590 transitions. [2022-03-17 23:36:23,754 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:23,754 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 590 transitions. [2022-03-17 23:36:23,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-03-17 23:36:23,755 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:36:23,755 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:36:23,755 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-17 23:36:23,756 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:36:23,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:36:23,756 INFO L85 PathProgramCache]: Analyzing trace with hash 407133951, now seen corresponding path program 1 times [2022-03-17 23:36:23,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:36:23,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824561734] [2022-03-17 23:36:23,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:36:23,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:36:23,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:23,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:36:23,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:23,870 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:36:23,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:36:23,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824561734] [2022-03-17 23:36:23,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824561734] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:36:23,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:36:23,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:36:23,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387946539] [2022-03-17 23:36:23,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:36:23,870 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:36:23,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:36:23,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:36:23,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:36:23,871 INFO L87 Difference]: Start difference. First operand 383 states and 590 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:26,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:28,125 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:30,145 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 [] [2022-03-17 23:36:30,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:36:30,567 INFO L93 Difference]: Finished difference Result 859 states and 1329 transitions. [2022-03-17 23:36:30,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:36:30,568 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 130 [2022-03-17 23:36:30,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:36:30,569 INFO L225 Difference]: With dead ends: 859 [2022-03-17 23:36:30,569 INFO L226 Difference]: Without dead ends: 502 [2022-03-17 23:36:30,570 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 [2022-03-17 23:36:30,570 INFO L912 BasicCegarLoop]: 131 mSDtfsCounter, 118 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 58 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:36:30,570 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 375 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 484 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-03-17 23:36:30,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2022-03-17 23:36:30,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 426. [2022-03-17 23:36:30,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 421 states have (on average 1.5605700712589075) internal successors, (657), 421 states have internal predecessors, (657), 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) [2022-03-17 23:36:30,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 661 transitions. [2022-03-17 23:36:30,577 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 661 transitions. Word has length 130 [2022-03-17 23:36:30,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:36:30,577 INFO L478 AbstractCegarLoop]: Abstraction has 426 states and 661 transitions. [2022-03-17 23:36:30,577 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:30,577 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 661 transitions. [2022-03-17 23:36:30,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-17 23:36:30,578 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:36:30,578 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] [2022-03-17 23:36:30,578 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-17 23:36:30,578 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:36:30,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:36:30,578 INFO L85 PathProgramCache]: Analyzing trace with hash 157994354, now seen corresponding path program 1 times [2022-03-17 23:36:30,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:36:30,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407290154] [2022-03-17 23:36:30,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:36:30,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:36:30,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:30,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:36:30,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:30,662 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:36:30,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:36:30,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407290154] [2022-03-17 23:36:30,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407290154] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:36:30,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:36:30,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:36:30,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149988389] [2022-03-17 23:36:30,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:36:30,663 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:36:30,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:36:30,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:36:30,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:36:30,664 INFO L87 Difference]: Start difference. First operand 426 states and 661 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:34,217 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 [] [2022-03-17 23:36:36,111 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:36,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:36:36,596 INFO L93 Difference]: Finished difference Result 905 states and 1405 transitions. [2022-03-17 23:36:36,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:36:36,597 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-17 23:36:36,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:36:36,598 INFO L225 Difference]: With dead ends: 905 [2022-03-17 23:36:36,598 INFO L226 Difference]: Without dead ends: 505 [2022-03-17 23:36:36,599 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 [2022-03-17 23:36:36,599 INFO L912 BasicCegarLoop]: 123 mSDtfsCounter, 150 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:36:36,599 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 358 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-03-17 23:36:36,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2022-03-17 23:36:36,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 426. [2022-03-17 23:36:36,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 421 states have (on average 1.5439429928741093) internal successors, (650), 421 states have internal predecessors, (650), 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) [2022-03-17 23:36:36,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 654 transitions. [2022-03-17 23:36:36,606 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 654 transitions. Word has length 131 [2022-03-17 23:36:36,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:36:36,606 INFO L478 AbstractCegarLoop]: Abstraction has 426 states and 654 transitions. [2022-03-17 23:36:36,606 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:36,606 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 654 transitions. [2022-03-17 23:36:36,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-17 23:36:36,607 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:36:36,607 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:36:36,607 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-17 23:36:36,607 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:36:36,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:36:36,608 INFO L85 PathProgramCache]: Analyzing trace with hash -101136473, now seen corresponding path program 1 times [2022-03-17 23:36:36,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:36:36,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914248212] [2022-03-17 23:36:36,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:36:36,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:36:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:36,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:36:36,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:36,702 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 23:36:36,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:36:36,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914248212] [2022-03-17 23:36:36,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914248212] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:36:36,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:36:36,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:36:36,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776291163] [2022-03-17 23:36:36,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:36:36,703 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:36:36,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:36:36,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:36:36,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:36:36,703 INFO L87 Difference]: Start difference. First operand 426 states and 654 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:39,663 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 [] [2022-03-17 23:36:41,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:41,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:36:41,473 INFO L93 Difference]: Finished difference Result 905 states and 1391 transitions. [2022-03-17 23:36:41,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:36:41,474 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-17 23:36:41,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:36:41,475 INFO L225 Difference]: With dead ends: 905 [2022-03-17 23:36:41,475 INFO L226 Difference]: Without dead ends: 503 [2022-03-17 23:36:41,476 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 [2022-03-17 23:36:41,476 INFO L912 BasicCegarLoop]: 131 mSDtfsCounter, 118 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:36:41,476 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 374 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-03-17 23:36:41,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2022-03-17 23:36:41,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 428. [2022-03-17 23:36:41,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 423 states have (on average 1.5437352245862883) internal successors, (653), 423 states have internal predecessors, (653), 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) [2022-03-17 23:36:41,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 657 transitions. [2022-03-17 23:36:41,483 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 657 transitions. Word has length 131 [2022-03-17 23:36:41,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:36:41,483 INFO L478 AbstractCegarLoop]: Abstraction has 428 states and 657 transitions. [2022-03-17 23:36:41,483 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:41,483 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 657 transitions. [2022-03-17 23:36:41,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-17 23:36:41,484 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:36:41,484 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] [2022-03-17 23:36:41,484 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-17 23:36:41,484 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:36:41,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:36:41,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1145451461, now seen corresponding path program 1 times [2022-03-17 23:36:41,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:36:41,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555191548] [2022-03-17 23:36:41,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:36:41,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:36:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:41,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:36:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:41,563 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:36:41,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:36:41,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555191548] [2022-03-17 23:36:41,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555191548] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:36:41,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:36:41,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:36:41,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049804434] [2022-03-17 23:36:41,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:36:41,564 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:36:41,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:36:41,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:36:41,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:36:41,564 INFO L87 Difference]: Start difference. First operand 428 states and 657 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:44,494 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 [] [2022-03-17 23:36:46,522 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 [] [2022-03-17 23:36:47,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:36:47,101 INFO L93 Difference]: Finished difference Result 868 states and 1338 transitions. [2022-03-17 23:36:47,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:36:47,101 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-03-17 23:36:47,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:36:47,102 INFO L225 Difference]: With dead ends: 868 [2022-03-17 23:36:47,102 INFO L226 Difference]: Without dead ends: 466 [2022-03-17 23:36:47,103 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 [2022-03-17 23:36:47,103 INFO L912 BasicCegarLoop]: 195 mSDtfsCounter, 88 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-17 23:36:47,103 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 507 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 486 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-03-17 23:36:47,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2022-03-17 23:36:47,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 428. [2022-03-17 23:36:47,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 423 states have (on average 1.541371158392435) internal successors, (652), 423 states have internal predecessors, (652), 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) [2022-03-17 23:36:47,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 656 transitions. [2022-03-17 23:36:47,109 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 656 transitions. Word has length 134 [2022-03-17 23:36:47,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:36:47,109 INFO L478 AbstractCegarLoop]: Abstraction has 428 states and 656 transitions. [2022-03-17 23:36:47,109 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:47,109 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 656 transitions. [2022-03-17 23:36:47,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-17 23:36:47,110 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:36:47,110 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] [2022-03-17 23:36:47,110 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-17 23:36:47,110 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:36:47,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:36:47,111 INFO L85 PathProgramCache]: Analyzing trace with hash 22744794, now seen corresponding path program 1 times [2022-03-17 23:36:47,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:36:47,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51223125] [2022-03-17 23:36:47,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:36:47,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:36:47,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:47,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:36:47,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:47,193 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:36:47,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:36:47,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51223125] [2022-03-17 23:36:47,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51223125] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:36:47,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:36:47,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:36:47,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774308661] [2022-03-17 23:36:47,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:36:47,194 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:36:47,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:36:47,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:36:47,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:36:47,195 INFO L87 Difference]: Start difference. First operand 428 states and 656 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:48,228 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:50,251 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:51,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:53,846 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:54,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:36:54,202 INFO L93 Difference]: Finished difference Result 842 states and 1299 transitions. [2022-03-17 23:36:54,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:36:54,203 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-03-17 23:36:54,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:36:54,204 INFO L225 Difference]: With dead ends: 842 [2022-03-17 23:36:54,204 INFO L226 Difference]: Without dead ends: 440 [2022-03-17 23:36:54,205 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 [2022-03-17 23:36:54,205 INFO L912 BasicCegarLoop]: 242 mSDtfsCounter, 36 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:36:54,205 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 601 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 428 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-03-17 23:36:54,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2022-03-17 23:36:54,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 428. [2022-03-17 23:36:54,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 423 states have (on average 1.5390070921985815) internal successors, (651), 423 states have internal predecessors, (651), 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) [2022-03-17 23:36:54,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 655 transitions. [2022-03-17 23:36:54,211 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 655 transitions. Word has length 134 [2022-03-17 23:36:54,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:36:54,211 INFO L478 AbstractCegarLoop]: Abstraction has 428 states and 655 transitions. [2022-03-17 23:36:54,211 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:54,211 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 655 transitions. [2022-03-17 23:36:54,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-03-17 23:36:54,212 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:36:54,212 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] [2022-03-17 23:36:54,212 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-17 23:36:54,212 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:36:54,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:36:54,213 INFO L85 PathProgramCache]: Analyzing trace with hash -74945077, now seen corresponding path program 1 times [2022-03-17 23:36:54,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:36:54,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395742109] [2022-03-17 23:36:54,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:36:54,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:36:54,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:54,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:36:54,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:54,303 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:36:54,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:36:54,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395742109] [2022-03-17 23:36:54,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395742109] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:36:54,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:36:54,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:36:54,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894069479] [2022-03-17 23:36:54,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:36:54,303 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:36:54,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:36:54,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:36:54,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:36:54,304 INFO L87 Difference]: Start difference. First operand 428 states and 655 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:57,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:58,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:36:58,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:36:58,713 INFO L93 Difference]: Finished difference Result 868 states and 1334 transitions. [2022-03-17 23:36:58,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:36:58,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 138 [2022-03-17 23:36:58,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:36:58,715 INFO L225 Difference]: With dead ends: 868 [2022-03-17 23:36:58,715 INFO L226 Difference]: Without dead ends: 466 [2022-03-17 23:36:58,716 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 [2022-03-17 23:36:58,716 INFO L912 BasicCegarLoop]: 202 mSDtfsCounter, 78 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:36:58,716 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 523 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-03-17 23:36:58,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2022-03-17 23:36:58,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 428. [2022-03-17 23:36:58,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 423 states have (on average 1.5366430260047281) internal successors, (650), 423 states have internal predecessors, (650), 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) [2022-03-17 23:36:58,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 654 transitions. [2022-03-17 23:36:58,722 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 654 transitions. Word has length 138 [2022-03-17 23:36:58,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:36:58,722 INFO L478 AbstractCegarLoop]: Abstraction has 428 states and 654 transitions. [2022-03-17 23:36:58,723 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:36:58,723 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 654 transitions. [2022-03-17 23:36:58,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-03-17 23:36:58,723 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:36:58,723 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] [2022-03-17 23:36:58,724 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-17 23:36:58,724 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:36:58,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:36:58,724 INFO L85 PathProgramCache]: Analyzing trace with hash 863586538, now seen corresponding path program 1 times [2022-03-17 23:36:58,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:36:58,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358584365] [2022-03-17 23:36:58,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:36:58,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:36:58,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:58,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:36:58,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:36:58,814 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 23:36:58,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:36:58,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358584365] [2022-03-17 23:36:58,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358584365] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:36:58,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:36:58,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:36:58,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698646601] [2022-03-17 23:36:58,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:36:58,815 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:36:58,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:36:58,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:36:58,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:36:58,815 INFO L87 Difference]: Start difference. First operand 428 states and 654 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) [2022-03-17 23:37:01,574 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 [] [2022-03-17 23:37:03,000 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:03,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:03,890 INFO L93 Difference]: Finished difference Result 983 states and 1513 transitions. [2022-03-17 23:37:03,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:03,890 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 138 [2022-03-17 23:37:03,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:03,892 INFO L225 Difference]: With dead ends: 983 [2022-03-17 23:37:03,892 INFO L226 Difference]: Without dead ends: 581 [2022-03-17 23:37:03,892 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 [2022-03-17 23:37:03,893 INFO L912 BasicCegarLoop]: 138 mSDtfsCounter, 126 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:03,893 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 388 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-17 23:37:03,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2022-03-17 23:37:03,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 492. [2022-03-17 23:37:03,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 487 states have (on average 1.540041067761807) internal successors, (750), 487 states have internal predecessors, (750), 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) [2022-03-17 23:37:03,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 754 transitions. [2022-03-17 23:37:03,899 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 754 transitions. Word has length 138 [2022-03-17 23:37:03,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:03,900 INFO L478 AbstractCegarLoop]: Abstraction has 492 states and 754 transitions. [2022-03-17 23:37:03,900 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) [2022-03-17 23:37:03,900 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 754 transitions. [2022-03-17 23:37:03,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-17 23:37:03,901 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:03,901 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] [2022-03-17 23:37:03,901 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-17 23:37:03,901 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:03,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:03,901 INFO L85 PathProgramCache]: Analyzing trace with hash 2135869213, now seen corresponding path program 1 times [2022-03-17 23:37:03,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:03,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768785611] [2022-03-17 23:37:03,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:03,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:03,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:03,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:03,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:04,001 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:37:04,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:04,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768785611] [2022-03-17 23:37:04,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768785611] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:04,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:04,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:04,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22034221] [2022-03-17 23:37:04,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:04,001 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:04,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:04,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:04,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:04,002 INFO L87 Difference]: Start difference. First operand 492 states and 754 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) [2022-03-17 23:37:06,581 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 [] [2022-03-17 23:37:08,613 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:10,641 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:11,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:11,040 INFO L93 Difference]: Finished difference Result 996 states and 1532 transitions. [2022-03-17 23:37:11,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:11,041 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 143 [2022-03-17 23:37:11,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:11,042 INFO L225 Difference]: With dead ends: 996 [2022-03-17 23:37:11,042 INFO L226 Difference]: Without dead ends: 530 [2022-03-17 23:37:11,043 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 [2022-03-17 23:37:11,043 INFO L912 BasicCegarLoop]: 202 mSDtfsCounter, 71 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:11,043 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 523 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 492 Invalid, 3 Unknown, 0 Unchecked, 7.0s Time] [2022-03-17 23:37:11,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2022-03-17 23:37:11,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 492. [2022-03-17 23:37:11,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 487 states have (on average 1.537987679671458) internal successors, (749), 487 states have internal predecessors, (749), 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) [2022-03-17 23:37:11,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 753 transitions. [2022-03-17 23:37:11,050 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 753 transitions. Word has length 143 [2022-03-17 23:37:11,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:11,050 INFO L478 AbstractCegarLoop]: Abstraction has 492 states and 753 transitions. [2022-03-17 23:37:11,051 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) [2022-03-17 23:37:11,051 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 753 transitions. [2022-03-17 23:37:11,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-17 23:37:11,051 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:11,051 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] [2022-03-17 23:37:11,052 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-17 23:37:11,052 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:11,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:11,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1981672196, now seen corresponding path program 1 times [2022-03-17 23:37:11,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:11,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56173524] [2022-03-17 23:37:11,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:11,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:11,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:11,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:11,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:11,153 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:37:11,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:11,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56173524] [2022-03-17 23:37:11,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56173524] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:11,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:11,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:11,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849287506] [2022-03-17 23:37:11,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:11,154 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:11,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:11,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:11,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:11,155 INFO L87 Difference]: Start difference. First operand 492 states and 753 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) [2022-03-17 23:37:14,781 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:15,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:15,225 INFO L93 Difference]: Finished difference Result 1033 states and 1582 transitions. [2022-03-17 23:37:15,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:15,226 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-03-17 23:37:15,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:15,227 INFO L225 Difference]: With dead ends: 1033 [2022-03-17 23:37:15,227 INFO L226 Difference]: Without dead ends: 567 [2022-03-17 23:37:15,228 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 [2022-03-17 23:37:15,228 INFO L912 BasicCegarLoop]: 124 mSDtfsCounter, 128 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:15,228 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 360 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-17 23:37:15,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-03-17 23:37:15,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 492. [2022-03-17 23:37:15,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 487 states have (on average 1.5236139630390144) internal successors, (742), 487 states have internal predecessors, (742), 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) [2022-03-17 23:37:15,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 746 transitions. [2022-03-17 23:37:15,235 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 746 transitions. Word has length 144 [2022-03-17 23:37:15,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:15,235 INFO L478 AbstractCegarLoop]: Abstraction has 492 states and 746 transitions. [2022-03-17 23:37:15,235 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) [2022-03-17 23:37:15,235 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 746 transitions. [2022-03-17 23:37:15,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-17 23:37:15,236 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:15,236 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] [2022-03-17 23:37:15,236 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-17 23:37:15,236 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:15,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:15,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1183253568, now seen corresponding path program 1 times [2022-03-17 23:37:15,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:15,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482513417] [2022-03-17 23:37:15,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:15,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:15,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:15,324 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-17 23:37:15,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:15,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482513417] [2022-03-17 23:37:15,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482513417] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:15,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:15,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 23:37:15,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941228801] [2022-03-17 23:37:15,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:15,325 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 23:37:15,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:15,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 23:37:15,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 23:37:15,325 INFO L87 Difference]: Start difference. First operand 492 states and 746 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 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) [2022-03-17 23:37:17,330 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 [] [2022-03-17 23:37:18,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:18,119 INFO L93 Difference]: Finished difference Result 1419 states and 2172 transitions. [2022-03-17 23:37:18,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 23:37:18,119 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 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 145 [2022-03-17 23:37:18,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:18,122 INFO L225 Difference]: With dead ends: 1419 [2022-03-17 23:37:18,122 INFO L226 Difference]: Without dead ends: 953 [2022-03-17 23:37:18,122 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 [2022-03-17 23:37:18,123 INFO L912 BasicCegarLoop]: 239 mSDtfsCounter, 141 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:18,123 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 433 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-17 23:37:18,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2022-03-17 23:37:18,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 951. [2022-03-17 23:37:18,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 946 states have (on average 1.5211416490486258) internal successors, (1439), 946 states have internal predecessors, (1439), 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) [2022-03-17 23:37:18,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1443 transitions. [2022-03-17 23:37:18,134 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1443 transitions. Word has length 145 [2022-03-17 23:37:18,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:18,134 INFO L478 AbstractCegarLoop]: Abstraction has 951 states and 1443 transitions. [2022-03-17 23:37:18,134 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 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) [2022-03-17 23:37:18,134 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1443 transitions. [2022-03-17 23:37:18,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-17 23:37:18,135 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:18,135 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] [2022-03-17 23:37:18,136 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-17 23:37:18,136 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:18,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:18,136 INFO L85 PathProgramCache]: Analyzing trace with hash -2105937151, now seen corresponding path program 1 times [2022-03-17 23:37:18,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:18,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644675130] [2022-03-17 23:37:18,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:18,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:18,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:18,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:18,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:18,253 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-03-17 23:37:18,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:18,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644675130] [2022-03-17 23:37:18,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644675130] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:18,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:18,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:18,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994225733] [2022-03-17 23:37:18,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:18,254 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:18,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:18,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:18,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:18,254 INFO L87 Difference]: Start difference. First operand 951 states and 1443 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) [2022-03-17 23:37:20,065 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:21,830 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:23,846 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:24,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:24,218 INFO L93 Difference]: Finished difference Result 1975 states and 2998 transitions. [2022-03-17 23:37:24,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:24,219 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 145 [2022-03-17 23:37:24,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:24,221 INFO L225 Difference]: With dead ends: 1975 [2022-03-17 23:37:24,221 INFO L226 Difference]: Without dead ends: 1050 [2022-03-17 23:37:24,222 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 [2022-03-17 23:37:24,222 INFO L912 BasicCegarLoop]: 236 mSDtfsCounter, 38 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:24,223 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 589 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-03-17 23:37:24,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2022-03-17 23:37:24,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 1003. [2022-03-17 23:37:24,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 998 states have (on average 1.5200400801603207) internal successors, (1517), 998 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) [2022-03-17 23:37:24,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1521 transitions. [2022-03-17 23:37:24,234 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1521 transitions. Word has length 145 [2022-03-17 23:37:24,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:24,234 INFO L478 AbstractCegarLoop]: Abstraction has 1003 states and 1521 transitions. [2022-03-17 23:37:24,234 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) [2022-03-17 23:37:24,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1521 transitions. [2022-03-17 23:37:24,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-17 23:37:24,236 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:24,236 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] [2022-03-17 23:37:24,236 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-17 23:37:24,236 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:24,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:24,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1580422636, now seen corresponding path program 1 times [2022-03-17 23:37:24,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:24,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172762806] [2022-03-17 23:37:24,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:24,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:24,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:24,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:24,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:24,318 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:37:24,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:24,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172762806] [2022-03-17 23:37:24,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172762806] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:24,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:24,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:24,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389784648] [2022-03-17 23:37:24,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:24,319 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:24,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:24,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:24,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:24,320 INFO L87 Difference]: Start difference. First operand 1003 states and 1521 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) [2022-03-17 23:37:27,011 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 [] [2022-03-17 23:37:29,034 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:30,895 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:31,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:31,311 INFO L93 Difference]: Finished difference Result 2051 states and 3109 transitions. [2022-03-17 23:37:31,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:31,311 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 147 [2022-03-17 23:37:31,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:31,314 INFO L225 Difference]: With dead ends: 2051 [2022-03-17 23:37:31,314 INFO L226 Difference]: Without dead ends: 1074 [2022-03-17 23:37:31,315 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 [2022-03-17 23:37:31,315 INFO L912 BasicCegarLoop]: 203 mSDtfsCounter, 70 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:31,315 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 525 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 491 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-03-17 23:37:31,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2022-03-17 23:37:31,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 1003. [2022-03-17 23:37:31,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 998 states have (on average 1.5180360721442885) internal successors, (1515), 998 states have internal predecessors, (1515), 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) [2022-03-17 23:37:31,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1519 transitions. [2022-03-17 23:37:31,326 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1519 transitions. Word has length 147 [2022-03-17 23:37:31,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:31,327 INFO L478 AbstractCegarLoop]: Abstraction has 1003 states and 1519 transitions. [2022-03-17 23:37:31,327 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) [2022-03-17 23:37:31,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1519 transitions. [2022-03-17 23:37:31,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-17 23:37:31,328 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:31,328 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, 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] [2022-03-17 23:37:31,328 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-17 23:37:31,329 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:31,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:31,329 INFO L85 PathProgramCache]: Analyzing trace with hash 2020286353, now seen corresponding path program 1 times [2022-03-17 23:37:31,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:31,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232426427] [2022-03-17 23:37:31,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:31,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:31,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:31,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:31,413 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 23:37:31,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:31,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232426427] [2022-03-17 23:37:31,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232426427] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:31,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:31,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:31,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391921039] [2022-03-17 23:37:31,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:31,414 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:31,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:31,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:31,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:31,414 INFO L87 Difference]: Start difference. First operand 1003 states and 1519 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) [2022-03-17 23:37:34,380 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 [] [2022-03-17 23:37:35,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:35,528 INFO L93 Difference]: Finished difference Result 2125 states and 3204 transitions. [2022-03-17 23:37:35,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:35,528 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-03-17 23:37:35,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:35,531 INFO L225 Difference]: With dead ends: 2125 [2022-03-17 23:37:35,531 INFO L226 Difference]: Without dead ends: 1148 [2022-03-17 23:37:35,532 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 [2022-03-17 23:37:35,535 INFO L912 BasicCegarLoop]: 124 mSDtfsCounter, 129 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:35,535 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 360 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-03-17 23:37:35,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1148 states. [2022-03-17 23:37:35,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1148 to 1003. [2022-03-17 23:37:35,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 998 states have (on average 1.5040080160320641) internal successors, (1501), 998 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) [2022-03-17 23:37:35,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1505 transitions. [2022-03-17 23:37:35,548 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1505 transitions. Word has length 148 [2022-03-17 23:37:35,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:35,549 INFO L478 AbstractCegarLoop]: Abstraction has 1003 states and 1505 transitions. [2022-03-17 23:37:35,549 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) [2022-03-17 23:37:35,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1505 transitions. [2022-03-17 23:37:35,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-03-17 23:37:35,550 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:35,550 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] [2022-03-17 23:37:35,550 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-17 23:37:35,550 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:35,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:35,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1320156377, now seen corresponding path program 1 times [2022-03-17 23:37:35,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:35,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831657812] [2022-03-17 23:37:35,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:35,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:35,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:35,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:35,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:35,652 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-17 23:37:35,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:35,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831657812] [2022-03-17 23:37:35,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831657812] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:35,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:35,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:35,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379186856] [2022-03-17 23:37:35,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:35,653 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:35,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:35,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:35,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:35,654 INFO L87 Difference]: Start difference. First operand 1003 states and 1505 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) [2022-03-17 23:37:37,661 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 [] [2022-03-17 23:37:38,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:38,041 INFO L93 Difference]: Finished difference Result 2035 states and 3051 transitions. [2022-03-17 23:37:38,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:38,042 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 151 [2022-03-17 23:37:38,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:38,044 INFO L225 Difference]: With dead ends: 2035 [2022-03-17 23:37:38,045 INFO L226 Difference]: Without dead ends: 1058 [2022-03-17 23:37:38,046 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 [2022-03-17 23:37:38,046 INFO L912 BasicCegarLoop]: 212 mSDtfsCounter, 61 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:38,046 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 543 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 471 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 23:37:38,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2022-03-17 23:37:38,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 1003. [2022-03-17 23:37:38,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 998 states have (on average 1.502004008016032) internal successors, (1499), 998 states have internal predecessors, (1499), 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) [2022-03-17 23:37:38,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1503 transitions. [2022-03-17 23:37:38,058 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1503 transitions. Word has length 151 [2022-03-17 23:37:38,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:38,058 INFO L478 AbstractCegarLoop]: Abstraction has 1003 states and 1503 transitions. [2022-03-17 23:37:38,058 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) [2022-03-17 23:37:38,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1503 transitions. [2022-03-17 23:37:38,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-03-17 23:37:38,060 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:38,060 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] [2022-03-17 23:37:38,060 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-17 23:37:38,060 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:38,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:38,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1590131186, now seen corresponding path program 1 times [2022-03-17 23:37:38,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:38,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133585183] [2022-03-17 23:37:38,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:38,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:38,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:38,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:38,149 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-17 23:37:38,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:38,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133585183] [2022-03-17 23:37:38,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133585183] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:38,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:38,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:38,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287080895] [2022-03-17 23:37:38,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:38,150 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:38,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:38,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:38,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:38,150 INFO L87 Difference]: Start difference. First operand 1003 states and 1503 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) [2022-03-17 23:37:39,877 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:41,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:44,405 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:44,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:44,857 INFO L93 Difference]: Finished difference Result 2125 states and 3172 transitions. [2022-03-17 23:37:44,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:44,858 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 152 [2022-03-17 23:37:44,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:44,860 INFO L225 Difference]: With dead ends: 2125 [2022-03-17 23:37:44,860 INFO L226 Difference]: Without dead ends: 1148 [2022-03-17 23:37:44,861 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 [2022-03-17 23:37:44,862 INFO L912 BasicCegarLoop]: 124 mSDtfsCounter, 130 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:44,862 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 360 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-03-17 23:37:44,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1148 states. [2022-03-17 23:37:44,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1148 to 1003. [2022-03-17 23:37:44,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 998 states have (on average 1.4879759519038076) internal successors, (1485), 998 states have internal predecessors, (1485), 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) [2022-03-17 23:37:44,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1489 transitions. [2022-03-17 23:37:44,874 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1489 transitions. Word has length 152 [2022-03-17 23:37:44,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:44,874 INFO L478 AbstractCegarLoop]: Abstraction has 1003 states and 1489 transitions. [2022-03-17 23:37:44,874 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) [2022-03-17 23:37:44,874 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1489 transitions. [2022-03-17 23:37:44,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-03-17 23:37:44,876 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:44,876 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] [2022-03-17 23:37:44,876 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-17 23:37:44,876 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:44,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:44,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1091961531, now seen corresponding path program 1 times [2022-03-17 23:37:44,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:44,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104527898] [2022-03-17 23:37:44,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:44,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:44,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:44,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:44,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:44,961 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-17 23:37:44,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:44,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104527898] [2022-03-17 23:37:44,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104527898] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:44,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:44,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:44,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136739069] [2022-03-17 23:37:44,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:44,962 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:44,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:44,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:44,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:44,962 INFO L87 Difference]: Start difference. First operand 1003 states and 1489 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) [2022-03-17 23:37:47,392 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 [] [2022-03-17 23:37:49,426 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:51,450 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:51,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:37:51,829 INFO L93 Difference]: Finished difference Result 2031 states and 3013 transitions. [2022-03-17 23:37:51,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:37:51,829 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 155 [2022-03-17 23:37:51,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:37:51,832 INFO L225 Difference]: With dead ends: 2031 [2022-03-17 23:37:51,832 INFO L226 Difference]: Without dead ends: 1054 [2022-03-17 23:37:51,833 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 [2022-03-17 23:37:51,833 INFO L912 BasicCegarLoop]: 215 mSDtfsCounter, 51 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-17 23:37:51,834 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 549 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 466 Invalid, 3 Unknown, 0 Unchecked, 6.8s Time] [2022-03-17 23:37:51,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2022-03-17 23:37:51,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 1003. [2022-03-17 23:37:51,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 998 states have (on average 1.4859719438877756) internal successors, (1483), 998 states have internal predecessors, (1483), 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) [2022-03-17 23:37:51,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1487 transitions. [2022-03-17 23:37:51,849 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1487 transitions. Word has length 155 [2022-03-17 23:37:51,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:37:51,850 INFO L478 AbstractCegarLoop]: Abstraction has 1003 states and 1487 transitions. [2022-03-17 23:37:51,850 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) [2022-03-17 23:37:51,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1487 transitions. [2022-03-17 23:37:51,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-03-17 23:37:51,852 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:37:51,852 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] [2022-03-17 23:37:51,852 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-17 23:37:51,852 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:37:51,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:37:51,852 INFO L85 PathProgramCache]: Analyzing trace with hash 379346722, now seen corresponding path program 1 times [2022-03-17 23:37:51,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:37:51,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844023223] [2022-03-17 23:37:51,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:37:51,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:37:51,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:51,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:37:51,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:37:51,949 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-17 23:37:51,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:37:51,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844023223] [2022-03-17 23:37:51,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844023223] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:37:51,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:37:51,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:37:51,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47595138] [2022-03-17 23:37:51,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:37:51,950 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:37:51,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:37:51,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:37:51,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:37:51,952 INFO L87 Difference]: Start difference. First operand 1003 states and 1487 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) [2022-03-17 23:37:53,529 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:55,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:57,577 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:37:59,609 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:00,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:00,032 INFO L93 Difference]: Finished difference Result 2209 states and 3268 transitions. [2022-03-17 23:38:00,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:00,032 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 155 [2022-03-17 23:38:00,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:00,045 INFO L225 Difference]: With dead ends: 2209 [2022-03-17 23:38:00,045 INFO L226 Difference]: Without dead ends: 1232 [2022-03-17 23:38:00,046 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 [2022-03-17 23:38:00,050 INFO L912 BasicCegarLoop]: 124 mSDtfsCounter, 121 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 59 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:00,050 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 360 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 473 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-03-17 23:38:00,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2022-03-17 23:38:00,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 1073. [2022-03-17 23:38:00,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1073 states, 1068 states have (on average 1.4803370786516854) internal successors, (1581), 1068 states have internal predecessors, (1581), 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) [2022-03-17 23:38:00,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 1585 transitions. [2022-03-17 23:38:00,084 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 1585 transitions. Word has length 155 [2022-03-17 23:38:00,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:00,084 INFO L478 AbstractCegarLoop]: Abstraction has 1073 states and 1585 transitions. [2022-03-17 23:38:00,084 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) [2022-03-17 23:38:00,085 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 1585 transitions. [2022-03-17 23:38:00,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-03-17 23:38:00,087 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:00,087 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] [2022-03-17 23:38:00,087 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-17 23:38:00,087 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:00,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:00,088 INFO L85 PathProgramCache]: Analyzing trace with hash -2033639593, now seen corresponding path program 1 times [2022-03-17 23:38:00,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:00,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658992859] [2022-03-17 23:38:00,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:00,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:00,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:00,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:00,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:00,231 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-17 23:38:00,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:00,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658992859] [2022-03-17 23:38:00,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658992859] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:00,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:00,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:00,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602986408] [2022-03-17 23:38:00,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:00,233 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:00,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:00,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:00,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:00,234 INFO L87 Difference]: Start difference. First operand 1073 states and 1585 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) [2022-03-17 23:38:02,092 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:03,208 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:04,934 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 [] [2022-03-17 23:38:05,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:05,292 INFO L93 Difference]: Finished difference Result 2159 states and 3189 transitions. [2022-03-17 23:38:05,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:05,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2022-03-17 23:38:05,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:05,295 INFO L225 Difference]: With dead ends: 2159 [2022-03-17 23:38:05,295 INFO L226 Difference]: Without dead ends: 1112 [2022-03-17 23:38:05,296 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 [2022-03-17 23:38:05,296 INFO L912 BasicCegarLoop]: 217 mSDtfsCounter, 41 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:05,296 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 553 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-03-17 23:38:05,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2022-03-17 23:38:05,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 1073. [2022-03-17 23:38:05,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1073 states, 1068 states have (on average 1.4784644194756553) internal successors, (1579), 1068 states have internal predecessors, (1579), 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) [2022-03-17 23:38:05,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 1583 transitions. [2022-03-17 23:38:05,309 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 1583 transitions. Word has length 156 [2022-03-17 23:38:05,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:05,309 INFO L478 AbstractCegarLoop]: Abstraction has 1073 states and 1583 transitions. [2022-03-17 23:38:05,309 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) [2022-03-17 23:38:05,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 1583 transitions. [2022-03-17 23:38:05,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-03-17 23:38:05,311 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:05,311 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] [2022-03-17 23:38:05,311 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-17 23:38:05,311 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:05,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:05,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1248589795, now seen corresponding path program 1 times [2022-03-17 23:38:05,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:05,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542548357] [2022-03-17 23:38:05,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:05,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:05,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:05,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:05,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:05,397 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-17 23:38:05,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:05,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542548357] [2022-03-17 23:38:05,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542548357] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:05,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:05,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:05,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047865391] [2022-03-17 23:38:05,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:05,398 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:05,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:05,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:05,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:05,399 INFO L87 Difference]: Start difference. First operand 1073 states and 1583 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) [2022-03-17 23:38:08,184 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 [] [2022-03-17 23:38:10,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:12,238 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:12,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:12,616 INFO L93 Difference]: Finished difference Result 2153 states and 3178 transitions. [2022-03-17 23:38:12,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:12,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2022-03-17 23:38:12,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:12,620 INFO L225 Difference]: With dead ends: 2153 [2022-03-17 23:38:12,620 INFO L226 Difference]: Without dead ends: 1106 [2022-03-17 23:38:12,621 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 [2022-03-17 23:38:12,621 INFO L912 BasicCegarLoop]: 218 mSDtfsCounter, 35 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:12,621 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 555 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 460 Invalid, 3 Unknown, 0 Unchecked, 7.2s Time] [2022-03-17 23:38:12,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2022-03-17 23:38:12,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 1073. [2022-03-17 23:38:12,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1073 states, 1068 states have (on average 1.4765917602996255) internal successors, (1577), 1068 states have internal predecessors, (1577), 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) [2022-03-17 23:38:12,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 1581 transitions. [2022-03-17 23:38:12,646 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 1581 transitions. Word has length 156 [2022-03-17 23:38:12,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:12,648 INFO L478 AbstractCegarLoop]: Abstraction has 1073 states and 1581 transitions. [2022-03-17 23:38:12,648 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) [2022-03-17 23:38:12,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 1581 transitions. [2022-03-17 23:38:12,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-03-17 23:38:12,650 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:12,650 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] [2022-03-17 23:38:12,650 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-17 23:38:12,650 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:12,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:12,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1581394541, now seen corresponding path program 1 times [2022-03-17 23:38:12,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:12,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397146739] [2022-03-17 23:38:12,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:12,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:12,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:12,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:12,743 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-03-17 23:38:12,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:12,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397146739] [2022-03-17 23:38:12,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397146739] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:12,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:12,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:12,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138385181] [2022-03-17 23:38:12,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:12,744 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:12,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:12,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:12,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:12,744 INFO L87 Difference]: Start difference. First operand 1073 states and 1581 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:15,463 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:17,492 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:17,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:17,834 INFO L93 Difference]: Finished difference Result 2147 states and 3168 transitions. [2022-03-17 23:38:17,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:17,835 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 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 163 [2022-03-17 23:38:17,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:17,837 INFO L225 Difference]: With dead ends: 2147 [2022-03-17 23:38:17,837 INFO L226 Difference]: Without dead ends: 1100 [2022-03-17 23:38:17,839 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 [2022-03-17 23:38:17,839 INFO L912 BasicCegarLoop]: 240 mSDtfsCounter, 41 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:17,839 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 597 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 438 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-17 23:38:17,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2022-03-17 23:38:17,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 1073. [2022-03-17 23:38:17,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1073 states, 1068 states have (on average 1.4747191011235956) internal successors, (1575), 1068 states have internal predecessors, (1575), 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) [2022-03-17 23:38:17,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 1579 transitions. [2022-03-17 23:38:17,852 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 1579 transitions. Word has length 163 [2022-03-17 23:38:17,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:17,853 INFO L478 AbstractCegarLoop]: Abstraction has 1073 states and 1579 transitions. [2022-03-17 23:38:17,853 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:17,853 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 1579 transitions. [2022-03-17 23:38:17,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-03-17 23:38:17,854 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:17,854 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] [2022-03-17 23:38:17,854 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-17 23:38:17,855 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:17,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:17,855 INFO L85 PathProgramCache]: Analyzing trace with hash -484985668, now seen corresponding path program 1 times [2022-03-17 23:38:17,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:17,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376893895] [2022-03-17 23:38:17,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:17,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:17,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:17,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:17,968 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 23:38:17,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:17,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376893895] [2022-03-17 23:38:17,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376893895] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:17,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:17,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 23:38:17,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566486938] [2022-03-17 23:38:17,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:17,969 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 23:38:17,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:17,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 23:38:17,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 23:38:17,969 INFO L87 Difference]: Start difference. First operand 1073 states and 1579 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:19,613 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 [] [2022-03-17 23:38:20,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:20,976 INFO L93 Difference]: Finished difference Result 2213 states and 3252 transitions. [2022-03-17 23:38:20,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 23:38:20,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 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 164 [2022-03-17 23:38:20,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:20,998 INFO L225 Difference]: With dead ends: 2213 [2022-03-17 23:38:20,998 INFO L226 Difference]: Without dead ends: 1166 [2022-03-17 23:38:21,000 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 [2022-03-17 23:38:21,000 INFO L912 BasicCegarLoop]: 224 mSDtfsCounter, 74 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:21,000 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 564 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-17 23:38:21,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1166 states. [2022-03-17 23:38:21,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1166 to 1073. [2022-03-17 23:38:21,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1073 states, 1068 states have (on average 1.4728464419475655) internal successors, (1573), 1068 states have internal predecessors, (1573), 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) [2022-03-17 23:38:21,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 1577 transitions. [2022-03-17 23:38:21,016 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 1577 transitions. Word has length 164 [2022-03-17 23:38:21,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:21,016 INFO L478 AbstractCegarLoop]: Abstraction has 1073 states and 1577 transitions. [2022-03-17 23:38:21,016 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 23:38:21,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 1577 transitions. [2022-03-17 23:38:21,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-03-17 23:38:21,018 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:21,018 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:38:21,018 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-17 23:38:21,018 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:21,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:21,019 INFO L85 PathProgramCache]: Analyzing trace with hash 380018882, now seen corresponding path program 1 times [2022-03-17 23:38:21,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:21,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963157527] [2022-03-17 23:38:21,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:21,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:21,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:21,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:21,337 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-03-17 23:38:21,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:21,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963157527] [2022-03-17 23:38:21,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963157527] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 23:38:21,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 23:38:21,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-17 23:38:21,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814335573] [2022-03-17 23:38:21,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 23:38:21,338 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-17 23:38:21,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 23:38:21,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-17 23:38:21,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-17 23:38:21,338 INFO L87 Difference]: Start difference. First operand 1073 states and 1577 transitions. Second operand has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 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) [2022-03-17 23:38:23,981 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 [] [2022-03-17 23:38:26,244 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:28,073 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 23:38:28,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 23:38:28,542 INFO L93 Difference]: Finished difference Result 2139 states and 3146 transitions. [2022-03-17 23:38:28,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 23:38:28,542 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 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 171 [2022-03-17 23:38:28,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 23:38:28,545 INFO L225 Difference]: With dead ends: 2139 [2022-03-17 23:38:28,545 INFO L226 Difference]: Without dead ends: 1073 [2022-03-17 23:38:28,546 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 [2022-03-17 23:38:28,546 INFO L912 BasicCegarLoop]: 213 mSDtfsCounter, 7 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-03-17 23:38:28,546 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 862 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-03-17 23:38:28,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2022-03-17 23:38:28,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 1073. [2022-03-17 23:38:28,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1073 states, 1068 states have (on average 1.4719101123595506) internal successors, (1572), 1068 states have internal predecessors, (1572), 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) [2022-03-17 23:38:28,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 1576 transitions. [2022-03-17 23:38:28,560 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 1576 transitions. Word has length 171 [2022-03-17 23:38:28,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 23:38:28,560 INFO L478 AbstractCegarLoop]: Abstraction has 1073 states and 1576 transitions. [2022-03-17 23:38:28,560 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 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) [2022-03-17 23:38:28,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 1576 transitions. [2022-03-17 23:38:28,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-03-17 23:38:28,562 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 23:38:28,562 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 23:38:28,562 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-17 23:38:28,562 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 23:38:28,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 23:38:28,562 INFO L85 PathProgramCache]: Analyzing trace with hash -581606333, now seen corresponding path program 1 times [2022-03-17 23:38:28,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 23:38:28,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758693347] [2022-03-17 23:38:28,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:28,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 23:38:28,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:29,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 23:38:29,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:29,247 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 14 proven. 146 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 23:38:29,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 23:38:29,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758693347] [2022-03-17 23:38:29,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758693347] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 23:38:29,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742473673] [2022-03-17 23:38:29,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 23:38:29,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 23:38:29,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 23:38:29,252 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) [2022-03-17 23:38:29,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-17 23:38:30,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 23:38:30,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 1146 conjuncts, 218 conjunts are in the unsatisfiable core [2022-03-17 23:38:30,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 23:38:30,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,475 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 17 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28153 treesize of output 23896 [2022-03-17 23:38:30,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 23:38:30,538 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 18 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10709 treesize of output 1662